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
CN1696490AInactive Publication Date: 2005-11-16成都威特电喷有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
成都威特电喷有限责任公司
Publication Date
2005-11-16
Estimated Expiration
Not applicable · inactive patent

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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.
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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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