Electromagnetic plunge pump

A technology of electromagnetic plunger and plug pumps, which is applied in the direction of pumps, liquid variable displacement machines, engine components, etc., and can solve problems such as low oil supply pressure
CN1587699AInactive Publication Date: 2005-03-02汪峰
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
汪峰
Publication Date
2005-03-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a electromagnetic tube-plug pump, using for pressure oil supplying in the oil-spraying system of compressor. It mainly includes oil-entering salves, oil-out salve, shaft-plug, coil and so on. The oil-entering salve includes an oil-entering salve spring, the oil-entering salve pith, and an oil-entering salve stand. The oil-entering salves stand is connected with plug, and communicated with oil-entering salve stand. The oil-entering salve stand is connected with plug, and communicated with oil-entering entrance by oil-entering holes inside the shaft-plug. There is a reduced spring between the shaft-plug and the lid bellow, along with the axis of shaft-plug, the shape of the entrance and exit of oil salve pith is disc, outside are oil-entering groove and oil-out groove. The benefit result of this invention is: because there is no reduce spring in the compressor cavity, it can reduce the dangerous capacity in the cavity, enhance the self-absorbing capacity and reduce air-hindernig phenomenon. That makes sure a higher oil-supporting pressure and especially apply for the electric-controlling spraying system of the motor engine. Certainly it also can apply for the other areas.
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Description

technical field

[0001] The invention relates to an electromagnetic plunger pump used for pressure fuel supply in an electronically controlled fuel injection system of a gasoline engine. Background technique

[0002] The gasoline pump used in the electronically controlled fuel injection system of a gasoline engine is required to be able to provide fuel with a pressure above 2.5bar stably. At present, a rotor pump driven by a DC motor is generally used in the market. The disadvantages are that it is more expensive, and the power consumption and The installation volume is large, and these characteristics make this type of oil pump not suitable for application on small gasoline engines such as motorcycle engines. At present, the electromagnetic plunger pump used in carburetor gasoline engine has low price and electric power, but the fuel supply pressure is low, so it is not suitable for EFI system, and can only be used to supply low-pressure fuel to c...

Claims

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