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a fuel injector

A technology of fuel injection nozzles and fuel injection holes, which is applied in the field of automobile engine parts, can solve problems such as residual oil and waste, and achieve the effect of avoiding clogging

Active Publication Date: 2016-08-24
DONGFENG YUEDA KIA MOTORS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing fuel injector generally has a simple valve body structure. One end of the valve body is provided with an oil injection port, and the other end is provided with an oil injection port. Outflow from the oil port, resulting in waste

Method used

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  • a fuel injector

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Embodiment Construction

[0014] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0015] Such as figure 1 As shown, the present invention includes a valve body 1, the valve body 1 is provided with a valve cavity 2, the valve body 1 is provided with an oil inlet 3 communicating with the valve cavity 2, and one end of the valve body 1 is fixed There is an oil valve 4, one end of the oil valve 4 is arranged in the valve chamber 2, and the oil valve chamber 5 and a cylindrical communication chamber 6 are arranged in the oil valve 4, and the communication chamber 6 communicates with the valve chamber 2 and the oil valve chamber 5, the oil valve chamber 5 is provided with a spherical retaining bead 7, the chamber wall of the oil valve chamber 5 is provided with an oil injection hole 8 communicating wit...

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Abstract

The invention relates to the technical field of automobile engine parts, in particular to a fuel injection nozzle, which includes a valve body, a valve cavity is arranged in the valve body, an oil inlet is arranged on the valve body, an oil valve is fixed at one end of the valve body, and an oil valve One end is set in the valve cavity, the oil valve is provided with an oil valve cavity and a connecting cavity, the connecting cavity is connected with the valve cavity and the oil valve cavity, the oil valve cavity is provided with a retaining bead, and the cavity wall of the oil valve cavity is provided with an external connecting cavity. A baffle is provided on the port at one end of the connecting chamber connected to the valve chamber, the baffle is connected to the retaining ball through a spring, the spring is arranged in the communicating chamber, and a through hole is provided on the baffle. When oil injection is required, the oil enters the valve chamber from the oil inlet, and then enters the connecting chamber from the through hole. Under the action of oil pressure, the retaining ball is separated from the inner wall of the oil valve chamber, and the oil enters the oil valve chamber. It is sprayed from the oil injection hole. After the oil injection is stopped, the retaining bead is tightly abutted against the inner wall of the oil valve chamber under the action of the spring, forming a barrier to the oil in the valve body and preventing the remaining oil in the valve body from being injected into the valve body. Hole outflow waste.

Description

technical field [0001] The invention relates to the technical field of automobile engine parts, in particular to an oil injector. Background technique [0002] The fuel injector is one of the key components of the EFI engine, and its work will seriously affect the performance of the engine. The existing fuel injector generally has a simple valve body structure. One end of the valve body is provided with an oil injection port, and the other end is provided with an oil injection port. Outflow from the oil port will cause waste. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fuel injection nozzle, which can avoid the waste of oil flowing out of the valve body after fuel injection. [0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a fuel injection nozzle, including a valve body, a valve chamber is arranged in the valve body, an oil inlet conne...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02M61/18F02M37/22
Inventor 韦斌
Owner DONGFENG YUEDA KIA MOTORS CO LTD
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