JB/T 9733-1999 This standard is a revision of ZB J94 015-90 "Technical Conditions for Standard Fuel Injection Pumps". The main technical content changes are as follows: - The standard pump types have been increased; - The regulations that the high-pressure fuel pipe assembly should comply with have been improved. This standard specifies the type, main parameters, technical requirements and test methods of standard fuel injection pumps. This standard is applicable to standard fuel injection pumps used to calibrate standard fuel injector assemblies for fuel injection pump test benches. This standard was first issued in 1980 as NJ 200-80 and was first revised to ZB J94 010-90 on June 20, 1990. JB/T 9733-1999 Technical Conditions for Standard Fuel Injection Pumps JB/T9733-1999 Standard Download Decompression Password: www.bzxz.net

1CS 43.060.40
Mechanical Industry Standard of the People's Republic of China
JE39733—1999
Standard fuel injection pump
Technical specifications for calibratig fuel injection puep1999-09-17 Issued
National Bureau of Machinery Industry
Implementation on 2000-01-01
JBrr933-1999
This standard is a revision of ZBJ94.015-90 (technical provisions of standard fuel injection nozzle). When re-subscribing, the original standard was revised. Compared with ZBJ94.015-90, the main technical contents of this standard have been changed as follows: Type A process flow nozzle has been added to the standard pump type, and it is stipulated that Type A process flow nozzle can be used as the standard pump; the main parameters and technical requirements of Type A process flow nozzle have been stipulated; 5.12 in ZBF94015 has been completed, and it is stipulated that the high-pressure oil pipe assembly shall comply with the provisions of JBJ8121; the oil supply and its measurement method have been stipulated. This standard replaces ZBJ94015-90℃ from the date of implementation. This standard was proposed and managed by the Shanxi Oil System Injection Standardization Technical Committee. The drafting unit of this standard is Wuti Oil System Injection Research Institute. The main contributors of this standard are Mi Alufen, Chen Guoqiang and Zhang Linen. This standard was first issued in 1980 as NJ200-80 and was revised to ZBJ9401590 in 1990. Scope
Machinery Industry Standard of the People's Republic of China
Technical specifications for calibraline fuel injection pump
Technical specifications for calibraline fuel injection pump This standard expands the types, semi-critical specifications, technical requirements and test methods of standard injection pumps. This standard is used to calibrate the standard fuel injection pump of the standard injector assembly used in the injection system test bench. Cited Standards
JB/T9733—1999
2J94015
The following standards contain excerpts which, through reference in this standard, constitute the texts of this standard. When this standard was issued, the versions shown were valid. All markings will be revised. Parties using this standard should explore the possibility of using the latest version of the standard. GB/T8029--1987
Rongyou Engine Injection Pump Oil
JB/F81211999
JR.T9734—1999
JR/T 9735—1999
3 Types and main parameters
Rongyou Engine Injection Pump Test Bench for Commercial Pressure Oil Pipe Fittings Technical Conditions for Injection Pump Test Bench
Technical Conditions for Standard Injector Pipes for Injection Pump Test Bench The oil system adopts BH, B. type injection pump. It is allowed to use A type T process flow system,
3.2DII, D guarantee main parameters
3.2.1 Oil outlet valve
Diameter: 6mm:
Decompression volume: 53.7 mm.
3.2.2 Oil outlet spring
Wire diameter: 1.5mm:
Inner diameter: 7mm:
Total number of meshes: 14;
Effective number of meshes: 12;
Direction of rotation: right;
Stiffness: 7.1N/n1m1
1.2.3 Oil outlet valve
Strict opening pressure value: 1.3*MPa
3. 2. 4 Oil outlet valve seat
Approved by Guohao Machinery Industry Bureau on September 17, 1999 and implemented on January 1, 2000
Running reverse connection number: M14x×1.5.6h. 3.2.5 Column parts required
Column true diameter: 9 mm
Tax: 20tnm:
Right-hand downward ladder.
3.2.6 Bypass valve
Opening pressure: 0.08~0.12MPa.
3.2.7 Roller body
Roller diameter: 23mm
3.2. 8 Oil cam
Tangent cam, see 1:
JB/T 9733-1999
3.3 The A-type oil pump disc is used, and the diameter is .5mm.t3\
Figure 1 Oil pump cam
4 Technical requirements
Standardized meshing oil pumps shall be manufactured according to product samples and technical specifications approved by the prescribed procedures, and shall comply with the requirements of this standard. 4.1 The dimensional deviation of the main semi-components shall be close to the tolerance range value. 4.2 All parts must be inspected and cleaned before assembly. 4.3 The clearance between the gear cup and the adjusting gear ring should not exceed 0.10mm. 4.4 The oil pan adjustment mechanism should be active,
4.5 When the selector is at the top dead center, the distance between the common end face and the large end face of the column sleeve is 0.4-1.0mm. 2
JB/T9733—1999wwW.bzxz.Net
4.6 There should be no oil leakage at the sealing points of the standard injection system. 4.7 The standard injection pump is based on the first cylinder (the side facing the inspection window cover is the first cylinder). 4.% When the speed of the standard full-quality oil system is 1000rmi, use the BH, B type standard injector assembly [with high-pressure oil pipe assembly] for calibration to test the oil supply plate with a fixed gear rod position of 11mm/(cycle·cylinder). 4.9 When using A-type flow system, when the oil system speed is 1450/min, its rack is fixed at the position of oil supply plate = 50mm circulation, cylinder!
STest method
5. Test parts
5.1.1 The test fuel injection pump test shall comply with the provisions of JBT9734. 5.1.2 The standard jet pump for verification shall comply with the provisions of JB9735. 5.1.3 The high-efficiency replacement components for testing shall comply with the provisions of JB8121. 5.1.4 The test oil shall comply with the provisions of GB/T8029. 5.1.5 The minimum temperature of the test oil is 40℃±2°C.
5.1.6 The oil inlet pressure during the test is 0.07-0.1MPa. 5.2 Fuel supply quantity force measurement method
5.2.1 Supply the injection pump with test oil of specified pressure, and measure the oil flowing out of the injection pump for a certain number of cycles when the injection ticket is adjusted to the specified pull rod (street rod) position and speed.
5.2.2 When the fuel supply of the injection pump does not exceed 300mL (300mm*), the number of cycles measured for each rated fuel supply chart should not be less than 200. Timing is based on cycles ×× (table.
5.2.3 During measurement, the oil in the measuring cylinder should not be less than 40% of the full scale. 5.2.4 Before changing the number, the oil should be stored for 305 down-flowing times. When reading the oil flow, the meniscus of the oil in the measuring cylinder can be used to connect the value. The measuring tube stand should be tilted 45″ and maintained at 305. The down-flow and back-flowing time must be equal each time.
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