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Electric controlled inline fuel-injection apparatus of combining pump-pipe-nozzle

A technology of in-line combination and injection device, which is applied in the direction of fuel injection device, charging system, engine components, etc., can solve the problems that are not fully compatible with the motion law and time response of the engine working conditions, the matching range is small, and the structure is complicated, etc., to achieve Improved system reliability, fast control response, and ultra-small size

Inactive Publication Date: 2005-11-16
成都威特电喷有限责任公司
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AI Technical Summary

Problems solved by technology

[0006] In order to overcome the disadvantages of complex mechanical structure and large volume in the prior art, which are not fully compatible with the motion rules of the engine working conditions, slow time response, and small matching range, the present invention provides a small volume, high reliability, and easy installation. An electronically controlled in-line combination pump-pipe-mouth type diesel injection device that can flexibly control the fuel volume and timing, and hardly changes the engine

Method used

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  • Electric controlled inline fuel-injection apparatus of combining pump-pipe-nozzle
  • Electric controlled inline fuel-injection apparatus of combining pump-pipe-nozzle
  • Electric controlled inline fuel-injection apparatus of combining pump-pipe-nozzle

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Embodiment Construction

[0018] The drawings describe that it mainly includes the pump body, high-speed solenoid valve assembly, plunger, tappet assembly, camshaft, and box body. The device mainly includes the electronic control unit ECU, electronically controlled in-line combined pump assembly, high-pressure oil pipe, fuel injector, The device of the present invention that sensor and low-pressure fuel oil are formed. A high-speed solenoid valve assembly is integrated in the high-pressure oil circuit on the upper part of the pump body. The coil of the solenoid valve is connected to the electronic control unit ECU. Precise direct digital control of the fuel injection process and quantity. Wherein the electronic control unit ECU 29 is composed of two parts: control hardware based on 32-bit single-chip microcomputer and engine management software components. The hardware of the control device is composed of a power supply module, a signal conditioning module, a microprocessor module, a driving module an...

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Abstract

The present invention discloses an electrically-controlled in-line combined pump-tube-nozzle fuel oil injection equipment, which can be hung on the exterior of engine self-body. Said fuel oil injection equipment includes the following components: electric control unit ECU, electromagnetic valve component actuator, electric control in-line combined pump assembly, high-pressure fuel oil tank, injector, various sensors for detecting working state of engine and low-pressure, fuel oil device. Said invention also provides the concrete structure of the electromagnetic valve component actuator.

Description

technical field [0001] The invention relates to a fuel injection device for a diesel engine, in particular to an electronically controlled in-line combination pump-pipe-mouth type diesel injection device. Background technique [0002] The pump-pipe-nozzle type fuel injection device for diesel engines in the prior art mainly includes three parts: an in-line pump (or distribution pump), a high-pressure oil pipe and a fuel injector. Including the P-type in-line pump device used in the diesel injection system by the German Bosch (Dr.) company, the control of the oil quantity is almost all based on the oil return spiral chute made on the plunger and the speed regulating pump installed on it. The device pulls the pull rod or the rack to rotate the relative position of the helical chute of the plunger and the oil return hole. Opening the oil return groove on the plunger will reduce the rigidity of the pump oil part, which is prone to leakage, resulting in insufficient oil supply p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M51/00
Inventor 朱元宪唐仁宏裘洌万彬徐平涛
Owner 成都威特电喷有限责任公司
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