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Foton Fuel Supply System Assembly-10
Foton Fuel Supply System Assembly-10
2025-07-18
Foton Governor
Foton Governor
2025-07-19

Foton Injector Pump Assembly

Foton Injector Pump Assembly
Foton Injector Pump Assembly
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What is the Foton Injector Pump Assembly

  • Precision Fuel Control: The Heart of the Foton Injector Pump Assembly
  • The Foton Injector Pump Assembly is the technologically advanced core of the diesel engine’s fuel system, meticulously engineered to generate the extreme pressures and deliver the precisely timed, metered fuel quantities essential for optimal combustion, power, and efficiency. This intricate assembly embodies Foton’s commitment to reliable, high-performance diesel technology.
  • Core Fuel Metering & High-Pressure Generation:
  • At its heart lie the critical Plunger Parts, working in conjunction with the Camshaft to create injection pressure. The camshaft’s precise rotation is facilitated by Camshaft Adjustable Washers for accurate timing.
  • Fuel flow is meticulously controlled by the Oil Outlet Valve Part, held securely by the Oil Outlet Valve Spring and seated on the Oil Outlet Valve Seat.
  • Multiple Pump Element Springs ensure precise plunger return and operational stability.
  • The robust Pump Body forms the main structure housing these precision components.
  • Critical Sealing, Adjustment & Protection:
  • Superior sealing is paramount, achieved through specialized components like SEAL-II, SEAL-IV, Rubber O-Seal Ring, Plate Seals, and Combined Gaskets at vital joints (including the Oil Inlet Joint and Fuel Inlet Adaptor), preventing leaks and maintaining pressure integrity.
  • Precise fuel quantity calibration is enabled by the Adjustable Washer and Adjustble Gear.
  • Components are safeguarded by Protection Caps, Protection Bushes, and multiple Protection Washers, enhancing durability against wear and environmental factors.
  • Adjustable Washers for the Camshaft and Bearing (Bearing Adjustable Washer) allow for critical clearances and timing adjustments.
  • Fuel Flow Management & Connections:
  • Fuel enters and returns via dedicated ports managed by the Fuel Inlet and Back Connection, secured with the Fuel Inlet and Back Screw and Fuel Back Connection Screw.
  • The Fuel Pipe Plug seals unused ports on the pump body.
  • The Deflation Screw allows for air purging from the system.
  • Control Linkage & Drive Mechanism:
  • The Throttle Lever Case houses the control mechanism, linked via the Tooth Lever and Tooth Lever Bush, with the Return Spring ensuring responsive movement.
  • The Tappet Assy translates camshaft lift into plunger movement.
  • Fixing Pins and Pin D5X12 ensure accurate component alignment and location, secured further by Locating Screws.
  • Structural Integrity & Mounting:
  • The assembly is securely mounted using high-strength 8.8-A3L Studs and various Screws, Washers (including specific Washer for Delivery Valve), Nuts, and Rings.
  • The Bearing Cover protects and locates critical bearings.
  • The Under Cover provides protection to the lower mechanism.
  • This highly sophisticated Foton Injector Pump Assembly – integrating precision Plunger Parts, a critical Camshaft drive, robust sealing systems (SEAL-II, SEAL-IV, O-Seal), and advanced adjustability features (Adjustable Washer, Adjustble Gear) – is fundamental to delivering the precise, high-pressure fuel injection required for superior Foton diesel engine performance, fuel economy, and low emissions. Every component, from the smallest Washer to the complex Pump Body, plays a vital role in its flawless operation.

Product Parameters of Foton Injector Pump Assembly

No. Code Description Quantity
1 B1-2 PROTENCTION CAP 4
10 B4QA003.2-03 WASHER FOR DELIVERY VALVE 4
11 B4Q001-02 ADJUSTBLE WASHER 999
12 X119A.0 PLUNGER PARTS 4
13 B4Q001.2-08 SEAL-II 4
14 B4Q001.2-10 SEAL-IV 4
15 B4QA003-01 ADJUSTBLE GEAR 4
16 B4Q001.1-04 8.8-A3L STUD 8
17 B4Q001-20 DEFLATION SCREW 1
18 B4Q001-25 WASHER 1
19 B4Q001-16 THROTTLE LEVER CASE 1
2 B4QA003.2-01 OIL OUTLET VALVE SEAT 4
20 B4Q001-17 WASHER 1
21 B4QA003.1-02 WASHER 1
22 B4QA003.1-01 OIL INLET JOINT 1
23 B4Q001-18 COMBINED GASKET 4
24 B4Q001-19 PROTENCTION WASHER 2
25 B4Q001.6-04 FUEL BACK CONNECTION SCREW 1
27 B4Q001.6-03 SPRING 1
28 B4Q001.6-02 WASHER 1
29 B4Q001.6-01 SCREW 1
3 B4QA003.2-02 SPINDLE 4
30 B4Q001.1-02 WASHER 2
31 B4Q001.1-03 FUEL PIPE PLUG 1
32 B4Q001-23 FIXING PIN 1
32 B4Q001-23 FIXING PIN 1
34 B4Q001.4-01 CAMSHAFT ADJUSTBLE WASHER 999
35 B4QA001.4-02 CAMSHAFT 1
37 B4QA001.4-01 CAMSHAFT ADJUSTBLE WASHER 999
39 B4QA001-04 BEARING ADJUSTBLE WASHER 999
4 B4Q001.2-03 WASHER FOR DELIVERY VALVE 999
40 B4QA001.5-01 RUBBER O-SEAL RING 1
41 B4QA001.5-02 BEARING COVER 1
43 B4QA001-05 PROTECTION BUSH 1
46 B4Q001.1-01 FUEL INLET AND BACK CONNECTION 1
47 B2-2 FUEL INLET ADAPTOR 1
48 X4BQA85Y022H 1
5 B4Q001.2-04 OIL OUTLET VALVE SPRING 4
50 B4Q001-01 FEED PUMP SEAL 1
51 B4Q001.1-06 8.8-A3L STUD 3
52 B4Q023.1-02 CONNECTION 1
53 B4Q023-02 COMBINED GASKET 2
54 B4Q023-04 PROTENCTION WASHER 1
54 B4Q023-04 PROTENCTION WASHER 1
55 B4Q023-03 FUEL INLET AND BACK SCREW 1
56 B4Q001-07 PUMP ELEMENT SPRING 4
57 B4QA001-02 PUMP ELEMENT SPRING 4
58 B4Q001-09 PUMP ELEMENT SPRING 4
59 B4QA001.3-01 TAPPET ASSY 4
6 F21.0 OIL OUTLET VALVE PART 4
61 B4Q001-13 COVER;UNDER 1
62 B4Q001-12 PLATE SEAL 1
62 B4Q001-12 PLATE SEAL 1
63 B4QA003.1-03 PUMP BODY 1
64 GB119-1986 PIN D5X12 2
65 B4Q001-11 WASHER 5
66 B4Q001-10 LOCATING SCREW 5
67 B4Q001.1-07 TOOTH LEVER BUSH 1
68 B4Q001-21 RETURN SPRING 1
69 B4Q001-22 RING 1
71 B4Q001-06 TOOTH LEVER 1
9 B4Q001-04 WASHER 8

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