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Piston of proportional electromagnetic valve with high voltage common rail parabola for diesel engine

A proportional solenoid valve and high-pressure common rail technology, which is applied in the direction of sliding valves, valve devices, mechanical equipment, etc., can solve the problems that the proportional control of fuel flow cannot be carried out, and is not suitable for diesel engine high-pressure common rail systems, etc., and achieves simple structure and wide adjustment range Big, Controllable Effects

Inactive Publication Date: 2012-12-19
无锡正大轴承机械制造股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] General fuel solenoid valves can only be operated on and off, and cannot perform proportional control of fuel flow. Some other types of proportional solenoid valves, such as electric proportional solenoid valves, pneumatic proportional solenoid valves, etc., can achieve proportional control of flow, but High pressure common rail system not suitable for diesel engine

Method used

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  • Piston of proportional electromagnetic valve with high voltage common rail parabola for diesel engine
  • Piston of proportional electromagnetic valve with high voltage common rail parabola for diesel engine

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Embodiment Construction

[0014] Below the present invention will be further described in conjunction with the embodiment in the accompanying drawing:

[0015] Such as figure 1 As shown, the present invention includes a piston body 1, two or four fuel flow holes 2 are arranged on the side wall of the piston body 1, and the fuel flow holes 2 are evenly distributed on the circumference. The fuel flow hole 2 communicates with the oil inlet hole on the valve seat of the proportional solenoid valve to form a fuel passage. When the piston moves axially with the armature, the area of ​​the fuel passage changes accordingly, so as to achieve the purpose of adjusting the fuel quantity.

[0016] The fuel flow hole 2 is an isosceles triangle.

[0017] The piston body 1 is a hollow cylinder body.

[0018] The proportional solenoid valve includes a piston body 1, a jacket 3, an armature 4, a spacer 5 and a valve seat 6. The automobile ECU adjusts the output current according to different working conditions of the...

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Abstract

The invention relates to a piston of a proportional electromagnetic valve with a high voltage common rail parabola for a diesel engine, which belongs to the technical field of the proportional electromagnetic valve. The piston comprises a piston body. A plurality of fuel circulating holes are arranged on the side wall of the piston body, and the fuel circulating holes are distributed uniformly. The fuel circulating holes are in isosceles triangle shape. The piston provided by the invention is simple, compact and reasonable in structure, strong in controllability of fuel adjustment, wide in adjusting range, simple in structure and convenient to manufacture.

Description

technical field [0001] The invention relates to a piston of a high-pressure common rail parabolic proportional solenoid valve of a diesel engine, belonging to the technical field of proportional solenoid valves. Background technique [0002] The proportional solenoid valve is the rated current output by the ECU as required, so that the spool of the working valve is displaced, thereby changing the size of the valve port and controlling the change of the flow rate. Spool displacement can also be fed back mechanically, hydraulically or electrically. The electro-hydraulic proportional solenoid valve has many advantages, such as various forms, easy composition, electrical and computer control of various electro-hydraulic systems, high control precision, flexible installation and use, and strong anti-interference ability, etc., and its application fields are increasingly broadened. [0003] Improving efficiency, reducing fuel consumption, and reducing environmental pollution from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/34F16K3/26
Inventor 高子华
Owner 无锡正大轴承机械制造股份有限公司