JB/T 8895-1999 General technical requirements for small and medium power diesel engines
Some standard content:
ICS27.020
Machinery Industry Standard of the People's Republic of China
JB/T8895--1999
Small and medium size diesel engines
Published on September 17, 1999
General technical conditions
Generapurposespecifications
Implementation on January 1, 2000
State Bureau of Machinery Industry
3H/T8895-1999
This standard is based on GB/T1147-1998 Internal combustion engine: Power-on technical requirements 3 (confirmed and effective in 1998) and GBT1105-1987 Internal combustion engine performance test method 3 (confirmed and effective in 1998). It is formulated by other relevant standards.
Appendix A of this standard is the appendix of the standard.
This standard is proposed and submitted by the National Technical Committee for Standardization of Internal Combustion Engines. The drafting units of this standard are: Shanghai Internal Combustion Engine Research Institute, Shanghai Diesel Engine General Co., Ltd., Fuzhou Belt and Engine Machinery Co., Ltd. Huayuan Kaima Machinery Co., Ltd.,
The main drafters of this standard are: Qian Yongli, Zheng Junton, Wei Feiqing, Shi Jiangrong, Lv Weizhong, and Ran Guojiang. Machinery Industry Standard of the People's Republic of China
General Technical Conditions for Small and Medium Power Diesel Engines
Smalland and medulla Size Diesel Engines-General-Purpose Specifications Scope
JB/8895-1999
This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation and operation of small and medium power diesel engines.
This standard is applicable to small and medium power hydrogen-generating diesel engines (hereinafter referred to as diesel engines). 3. Referenced Standards
The definitions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised. The parties using this standard should use the latest versions of the following standards to measure the applicability. 6191-1999
03/T 7351991
GR/T 726--[994
GB/T [165--1987
GB/T 1883—1969
GB/T 3475—1983
GBT 4556—1984
G976388—1996
GB4486J18
GE:T 10397--1589
|CRT 15371—[994
JB9390199
JB 591--[999
JO/T 91311SSS
JB:T97732—1999www.bzxz.net
JB.T 9774--1990
--JBf S1127--199
CR.T 325—1904
CR+/T3256—1994
CB*/T 3325—1987
Packing conditions and transportation markings
Internal combustion engine product name and model terminal specification
Reciprocating internal combustion engine rotation direction, valve markings on cylinder and valve cover and definition of right engine, left engine and engine position of in-line internal combustion engine
Internal combustion engine bench performance test method
Terminology of point piston internal combustion engine
Technical conditions for diesel engine adjustment system
Fire protection of in-line internal combustion engine
Transport packaging and delivery markings
Electric diesel engine exhaust smoke requirements and test pieces, small and medium power diesel engine, vibration rating
Small and medium power diesel engine Measurement and determination method of torsional vibration of crankshaft shaft system Safety requirements for compound internal combustion engines Exhaust gas exhaust gas limit values for small and medium power diesel engines Bench test method for diesel engine starting performance test method Cleanliness limit values for small and medium power internal combustion engines Production feasibility test of small and medium power diesel engines Technical conditions for marine diesel engines Vibration rating for marine diesel engines Approved by the State Bureau of Machinery Industry on 1999-09-17 2000-01-01 3. General requirements
JB/T8895—1999
Automobile engine product quality inspection and assessment points 3.1.1 Diesel engine production should be in accordance with the product drawings and technical documents approved by the prescribed procedures, and the parts, components and accessories should comply with the relevant standards.
3.1.2 The model compilation of diesel engine should comply with the provisions of GB725. 3.1.3 The diesel engine specification should comply with the provisions of GB13. 3.2 Technical Specifications 3.2.1 The manufacturer shall provide the main technical specifications and overall functions of the diesel engine in the product technical documents (which may be increased or decreased according to the structural type and purpose of the diesel engine): Model: Type (refers to the number of strokes, combustion mode, cylinder displacement mode, combustion type, east or west engine, supercharging point type, whether with supercharger and compressed air intercooler, etc. Number of cylinders: Cylinder diameter, piston stroke, suitable total displacement, rated power (according to GBT1105), rated speed, maximum speed, maximum No-load stable speed,
minimum no-load rated speed,
minimum stable speed,
supercharger transfer,
fuel viscosity reduction rate,
engine oil viscosity reduction rate.
Songshan brand:
engine oil brand:
average speed,
conversion ratio:
average effective pressure
tower pressure.
fuel supply advance angle (crankshaft angle)
ignition order
valve timing (crankshaft angle)
rotation direction (GB/T726 stipulates:
e/tnin:
N+m) (r/min ):
r/min;
T/min;
rimin:
g.ikw.h).
gr(hw.h);
Overall dimensions (length×width×height
Net mass,
Total mass
JET88951999
Play: Oil-free engine product requirements should be marked as needed. Measure consumption 2) Fuel consumption rate under rated conditions
5% of the fuel consumption range
c) Fuel consumption rate under other operating conditions specified by the user. 3.2.2 The manufacturer shall provide the required characteristics in the instruction manual according to the purpose and characteristics of the diesel engine. 3.2.3 The manufacturer shall provide the appearance of the diesel engine in the instruction manual, and shall indicate the appearance, installation and connection dimensions. 3.3 7.1.1 The diesel engine shall be able to generate the power indicated on the nameplate. The deviation between the limited power and the corresponding power on the nameplate is called the power limit. When the test environment conditions are different from the standard environment conditions, the power and fuel consumption rate shall be corrected according to the provisions of B/105. 3.3.2 The diesel engine with a rated power of 12h and a continuous power rate generally has the ability to overload power. The duration and frequency of the overload power allowed to be used depends on the usage conditions. However, there should be enough margin in the diesel engine oil regulator. So that it can satisfactorily generate the allowed overload power. The overload rate shall be expressed as a percentage of the continuous power, and the duration and frequency of the allowed operation and the corresponding engine speed shall be indicated. Unless otherwise specified, at the corresponding engine speed, the overload of 110% continuous power rate is allowed to run intermittently or uninterruptedly for 1h within the 52h operation period. 3.3.3 The fuel consumption rate and oil consumption rate of diesel engines should not exceed the factory indicators specified in the product technical documents. The fuel consumption rate of diesel engines for different purposes at maximum torque and partial load and partial transfer should comply with the provisions of Table 1. Note [: If the diesel engine with a 15mw power rating is calibrated and the lubrication rate is restored after the oil consumption rate is measured, no additional time is required. Note 2: The diesel engine lubrication rate should be the indicator after the factory state and product is closed. Note 3: When calculating the fuel consumption rate, the diesel low temperature standard is determined according to H/115. 1
ground wind pollution point
impulse 1 installation performance
speed
load characteristics
propulsion sustainability
fixed speed
75*load inquiry point
calibrated speed
5 load commercial point
calibrated engineering said sugar oil consumption adjustment plan identity efficiency
14.5kW test case oil, for all load points and some speed sugar oil consumption rate is not specified, 2 supercharger engine recovery 0% blood still point natural consumption
9096 rated speed point
3.3.4 The noise output, smoke density and exhaust efficiency indicators of the diesel engine at the power indicated on the nameplate should be assessed, and their values must meet the limits specified by the relevant industry standards according to the rated points. When the running-in bureau is required to conduct an assessment, the noise during the running-in shall not exceed 45℃. 3
J9/T8895-1999
3.3.5 When the diesel engine is running at the nominal working condition, the following parameters shall comply with the provisions of the product technical documents: 1) Exhaust gas exhaust temperature (main pipe or each cylinder pipe), K or Tb) Turbine supercharger gas inlet temperature:; e) Engine oil temperature, C:
Diesel engine cooling medium outlet temperature:
e) Engine oil pressure, kPa;
f) Maximum explosion pressure (as needed and possible) MPa: g) Supercharger speed, Trmin
h) Cooling medium outlet lubricity of diesel engine, K or, 3.3.6 When the diesel engine is running at the nominal working condition, when one cylinder (referring to the engine with cylinder number equal to or less than 7) or two cylinders (referring to the engine with cylinder number equal to or greater than B) stop working, it shall be able to run stably under low load. When the exhaust gas turbine compressor stops working, the main engine can run steadily at low speed and low load. 3. Uniformity of each cylinder operation
The engine can run under the calibrated condition. The unevenness of the cylinder parameters and the half-value adjustment of all cylinders should comply with the provisions of Table 2: Table 2
Number of working cylinders
Pressure
Maximum repulsion
Displacement "disc skin
Average indicated pressure or indicated work
Note: All or part of the items can be specified according to the station configuration and route of the old machine. 3.5 Torque reserve
±5% (Medium and high turbocharged diesel engines =%)
According to the speed characteristics of the engine, the batch interval cycle order must meet the matching needs or the requirements of the supplementary table, the ratio of the maximum torque point to the rated speed, the formation meets the requirements of Table 4, Table 3
Academic oil type leather
Agricultural transport vehicle year and month
Push-pull H
Wheel bulldozer
Engineering machinery
Type state machine
Torque reduction rate
Recover relevant standards and technical documents
Engine type and reverse
Traction machine
Agricultural transport vehicle/vehicle
Artificial intelligence machinery
JB/T8895-1999
t,% [800 r/min
n,>1800/mn
t4.5kW or less diesel engines do not need to be tested for torque characteristics. 2. The torque characteristics of low-speed diesel engines with inverters shall comply with the product technical specifications. 3. G speed regulation characteristics
The speed regulation performance under the diesel engine calibration shall comply with the provisions of Table 5. Table 5
Use
Fixed power, non-agricultural
Tractor
Joint harvester
Agricultural transport vehicle/main engine
Cross-speed engine
Low-speed engine
Medium-low speed engine
Power generation
Minimum no-load stable speed
Instantaneous Efficiency
Stable residual rate &,
Ratio of maximum torque point speed to rated speed%
Assumption time:
Energy rate
The diesel engine shall run stably and continuously for at least 5 minutes at the lowest no-load stable speed, and the speed fluctuation rate shall comply with the product technical specifications.
Low working stable speed
The minimum working stable speed allowed by the diesel engine and its continuous running time shall comply with the provisions of Table 6. Diesel engine use
Agricultural transport/warehouse
Transfer machine, engineering machine, etc.
n≤300r/mln
Main engine
4300-1000 1/tnin
n,>1000rimin
3.9 Safety protection
JB8895-1999
Minimum rated speed
(As a percentage of the rated speed]
The safety protection of diesel engines shall comply with the provisions of GB/T4556 and JB8890 according to the purpose. 3.10 Overspeed protection
When the diesel engine is equipped with an overspeed protection device or a speed governor, it shall comply with the provisions of CB/T3253 and/or QBT3475. When the speed reaches 120% of the rated speed, the air intake or fuel supply shall be automatically stopped. 3. Non-vibration
The mechanical vibration limit of diesel engine shall meet GB/T10397, CB/T3256 or relevant industry standards according to the use and reach the standard of ℃ (tolerable level):
The crankshaft torsional vibration limit of diesel engine shall meet the requirements of GB/T15371 and CB+1325 for small and medium power and marine diesel engines respectively. The diesel engine shall not have a critical torsional speed within 10% of the rated speed. 3.12 Emergency stop
During the commissioning or operation of the diesel engine, if abnormal sound is emitted, the engine is interrupted or the lubricating oil is cut off, or when it is used in a flammable and explosive environment, if the exhaust outlet temperature exceeds the specified value, the diesel engine shall be able to stop quickly. 3. 13 Start
The diesel engine shall be started at the ambient temperature specified in Table 7 and within the specified starting time. The machine can start smoothly without taking any external instructions. The engine safety starting requirements should comply with the provisions of 5.3.2.2 of B8890-199. The starting power and the electric starting fluid and the gas starting are checked and tested. The machine and the engineering machinery are connected with the same notes, the auxiliary machine and the emergency generating set and the fixed manual starting are checked. 1. The starting method is to connect DT9773.2: Each start can be completed within 2 hours. 2. For machines with special requirements for starting performance (such as low temperature starting, starting with gasoline engine), the starting time shall be determined by the manufacturer and the user according to the relevant technical standards.
3.11 The main engine should be tested for reversing. The reversing operation should be easy and flexible. The reversing time of the main engine that can be reversed should not exceed 1553. 15 Diesel engine should be able to work under the conditions of the conditions listed in Table 8 Other uses of diesel engine Multi-purpose Engineering such as guns Tractors Mobile generator set Limited belt-type dismantling machine, gas-fired engine, single-bucket excavator, self-propelled shovel, ground machine, etc. Steam lifting machine, Yili, etc. Multi-bucket machine, dump truck, etc. Belt-type Do not work in mobile mode Work in mobile mode (power not more than 30kW) Main machine to auxiliary machine Emergency diesel wave generator Unit
Note: For diesel engines with running records, the effectiveness shall be negotiated between the manufacturer and the user. 3.16 Tightness
The diesel engine's tight fittings shall not leak oil, gas or water after being tightened during warm-up, running-in and performance tests. The rated operating pressure of the diesel engine shall not exceed [% of the nominal intake air. 3.17 Working medium
The working medium of the diesel fuel system shall comply with the instructions for use. The additives in the working medium shall be non-toxic, non-volatile and non-precipitable.
3.18 Instrumentation
The diesel engine shall be equipped with the instrumentation and indication system necessary for normal operation. For engines with a power of 27kW or less: monitoring and/or alarm devices shall be installed when the speed, pressure, temperature and other parameters exceed the specified range. 3.15. Full
The cleanliness of the diesel engine shall comply with the provisions of JB.T974 or relevant industry standards: 3.20. Noise
The noise of the diesel engine shall comply with the provisions of GB14097 or relevant industry standards. 3.21. Smoke
JB.T95-1999
The exhaust smoke of the diesel engine shall comply with the provisions of 0B9486 or relevant industry standards: 3.22. Emission
The gas and the pollution number of the diesel engine shall comply with the provisions of relevant industry standards. 3. 23 Reliability
3.23.1 Diesel engine products shall be tested for reliability in accordance with R/T51127. The test indicators are: a) Mean time to first failure (MTTFF) less than 500h; b) Mean time between failures (MTBF) not less than 10aoh; b) Friction-free score (0) not less than 10.60 points 3.23.2 Reliability assessment of automotive engines shall be in accordance with 5.5 of QC/T901998 3.74 Durability
Diesel engines shall be subjected to bench durability test in accordance with the method specified in JBT9773.1. After the test, they shall comply with the requirements of the table. Medium-speed diesel engines shall comply with the requirements of the table.
The test specifications of the automotive diesel engine bench shall be agreed upon by the manufacturer and the user. Table 9
Main parts "description
Main parts phase after test
After test + performance index
Non-main parts damage
Calibration
1 See case A (standard requirements).
Requirements! After the test, the main parts shall be reported as
After the test, the performance index changes
Non-main parts damage
Failure to cause shutdown
[Attached requirements.
3.25 Life
Diesel engine life is in accordance with the provisions of Table 11.
Technical description
Not allowed
Standard fuel consumption rate increase value less than 4% of the calibration, the engine Oil consumption rate rise value does not exceed 30% of the calibration value, not more than 5 items
No symptoms more than 4 times
Technical document type requirements
Research and certification
Product data supply regulations
Main conditions start from the beginning of the circulation season rise does not exceed the calibration to reach 3, the flow energy consumption rate is not more than 20% of the marked position according to the product technical documents regulations
No more than 4x
Equipped energy model
3.26 Warranty period
FB8895—1999
Agricultural transport vehicle/vehicle
Medium speed oil dyeing machine
Diesel engine adopts the period of other manufacturers! Three guarantees commitments, 5≥750mln
n750 rmin
3000 h
600c h
.8000 h
12000h
3.27 When the diesel engine is delivered, the user shall be provided with the spare parts and maintenance documents such as the second package certificate, product quality certificate and instruction manual. If the user has any requirements, the test method can be agreed with the manufacturer
The performance test method of the diesel engine shall be carried out in accordance with the relevant standards of GB/T 1105. Inspection rules
The inspection of diesel engine is divided into factory inspection (or acceptance test). Finalization inspection and 5. Factory inspection
Each diesel engine must undergo factory inspection. The inspection items are shown in Table 12. 5.2 Final inspection
All diesel engines with new designs, major improvements, and transferred production must undergo final inspection. The inspection items are shown in Table 12. 5.3 Pre-production inspection
The manufacturer should conduct regular spot inspections on the diesel engine in accordance with the relevant technical documents. The inspection items are shown in Table 12. Serial number
Acid control, according to the inspection items
Starting performance test| |tt||Speed performance test
Western Dutch characteristic test
Speed magic characteristic test
Use durability test
Universal characteristic test
Qualification test of calibration work
Air power durability test
Low altitude stability test
Minimum working hook test
Each cylinder working uniformity test
Engine efficiency test
Thermal balance test||tt| |Deep sound test
Gas and smoke test
Exhaust core test
Mechanical disassembly and crankshaft rotation vibration test
Live egg ventilator two tests
Two high support rate test
Cleanliness improvement test
Special performance test
Function control
Energy test
Called as performance test
JB/TS895-1999
Type inspection
Out! Items to be inspected
: The items to be inspected must be completed at the same time: 2 "V" and "" items within the country, and the sound transmission device is also included in the inspection report
1 Special refining performance test refers to the engine and the right-hand matching time and time torque test. The engine will be tested, the combat test, the dynamic field and the solid matching of the engine unit will be tested, the engine will be tested, the starting door support or the most certain legacy test, the dual-fuel engine conversion test, and the factory will produce a good performance test at a certain time, so that the audience can watch The function check refers to the ability to receive the power not specified by the engine (in the event of turbo boost failure), the speed control system check, the fault protection and alarm check, the reverse and wet braking performance check, the cumulative force check before and after the starting test, the rapid release test of the whole mechanism and its clutch, the power reduction test of the two arms, the stability check of the engine under pressure, and the condition check of the standing cushion and air bearing components and extraction during the test.27. When the diesel engine is delivered, the user shall be provided with spare parts, maintenance certificates, product quality certificates, user manuals and other related technical documents. If the user has requirements, the test method can be agreed with the manufacturer. The performance test method of the diesel engine shall be carried out in accordance with the relevant standards of GB/T 1105. Inspection rules. The inspection of diesel engines is divided into factory inspection (or acceptance test), finalization inspection and random inspection. 5. Factory inspection
Each diesel engine must be inspected before delivery. The inspection items are shown in Table 12. 5.2 Final inspection
All diesel engines with new design, major improvement and transferred production shall be inspected. The inspection items are shown in Table 12. 5.3 Final inspection
The manufacturer shall conduct random inspections on the diesel engine regularly according to the relevant technical documents. The inspection items are shown in Table 12. Serial number
Acid control, according to inspection item
Starting performance test
Speed performance test
Speed characteristic test
Usage duration test
Universal characteristic test
Calibration work qualitative test
Air power Durability test
Low air quality stability test
Minimum working hook test
Cylinder working uniformity test
Machine efficiency test
Thermal balance test
Deep sound test
Gas and smoke test
Exhaust core test
Mechanical disassembly and crankshaft rotation vibration test
Live breather plate test
Two high support rate test
Cleanliness improvement test
Special performance test
Function control
Performance test
JB/TS895-1999
Type inspection
Out! Items to be inspected
: The items to be inspected must be completed at the same time: 2 "V" and "" items within the country, and the sound transmission device is also included in the inspection report
1 Special refining performance test refers to the engine and the right-hand matching time and time torque test. The engine will be tested, the combat test, the dynamic field and the solid matching of the engine unit will be tested, the engine will be tested, the starting door support or the most certain legacy test, the dual-fuel engine conversion test, and the factory will produce a good performance test at a certain time, so that the audience can watch The function check refers to the ability to receive the power not specified by the engine (in the event of turbo boost failure), the speed control system check, the fault protection and alarm check, the reverse and wet braking performance check, the cumulative force check before and after the starting test, the rapid release test of the whole mechanism and its clutch, the power reduction test of the two arms, the stability check of the engine under pressure, and the condition check of the standing cushion and air bearing components and extraction during the test.27. When the diesel engine is delivered, the user shall be provided with spare parts, maintenance certificates, product quality certificates, user manuals and other related technical documents. If the user has requirements, the test method can be agreed with the manufacturer. The performance test method of the diesel engine shall be carried out in accordance with the relevant standards of GB/T 1105. Inspection rules. The inspection of diesel engines is divided into factory inspection (or acceptance test), finalization inspection and random inspection. 5. Factory inspection
Each diesel engine must be inspected before delivery. The inspection items are shown in Table 12. 5.2 Final inspection
All diesel engines with new design, major improvement and transferred production shall be inspected. The inspection items are shown in Table 12. 5.3 Final inspection
The manufacturer shall conduct random inspections on the diesel engine regularly according to the relevant technical documents. The inspection items are shown in Table 12. Serial number
Acid control, according to inspection items
Starting performance test
Speed performance test
Speed characteristic test
Usage durability test
Universal characteristic test
Calibration performance test
Air power Durability test
Low air quality stability test
Minimum working hook test
Cylinder working uniformity test
Machine efficiency test
Thermal balance test
Deep sound test
Gas and smoke test
Exhaust core test
Mechanical disassembly and crankshaft rotation vibration test
Live breather plate test
Two high support rate test
Cleanliness improvement test
Special performance test
Function control
Performance test
JB/TS895-1999
Type inspection
Out! Items to be inspected
: The items to be inspected must be completed at the same time: 2 "V" and "" items within the country, and the sound transmission device is also included in the inspection report
1 Special refining performance test refers to the engine and the right-hand matching time and time torque test. The engine will be tested, the combat test, the actual dynamic field and the actual matching of the engine unit will be tested, and the engine will be tested: the starting door support or the most certain legacy test, the dual-fuel engine self-assisted conversion test, and the good performance will be tested at the factory at a certain time, so that the audience can watch The function check refers to the ability to receive the power not specified by the engine (in the event of turbo boost failure), the speed control system check, the fault protection and alarm check, the reverse and wet braking performance check, the cumulative force check before and after the starting test, the rapid release test of the whole machine and its clutch, the two-arm booster test, the stability of the engine under pressure, and the condition of the standing pads and air bearings during the test.
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