Automobile fuel tank switching valve with delayed oil return function and operating method

Abstract

The invention discloses an automobile fuel tank switching valve with a delayed oil return function and an operation method. A gear transmission mechanism for driving a first plane cam and a second plane cam is installed inside the housing, and the first plane cam is set in the The outside of the first oil passage shaft, the second plane cam is set on the outside of the second oil passage shaft, the first oil passage shaft outside the cover plate is provided with the main oil outlet, and the second oil passage shaft is provided with the main return port Oil port; No. 1 oil inlet passage and No. 2 oil inlet passage are arranged on the housing; No. 1 oil return passage and No. 2 oil return passage are arranged on the housing. The first plane cam cooperates with the first ejector rod switching device and the second ejector rod switching device for oil inlet communication switching in the two oil inlet passages; and the second plane cam cooperates with the The third mandrel switching device and the fourth mandrel switching device cooperate with each other for oil return communication switching.

Description

A kind of automobile fuel tank switching valve with delayed oil return function and operation method technical field The invention belongs to the field of automobile fuel tank parts, be specifically related to a kind of automobile fuel tank conversion with time delay oil return function Valve and method of operation. Background technique At present, some diesel vehicles are double fuel tank structures, and the labels of the diesel fuels installed in these two fuel tanks are different, usually In some cases, when one fuel tank runs out of fuel, it needs to automatically switch to another fuel tank for fuel supply. Therefore, usually There are two oil inlets at the bottom that communicate with the two oil tanks, and the two oil tanks are also provided with oil return ports respectively. The oil port is communicated with the total oil inlet channel, and the two oil return ports are communicated with the total oil return channel. Since there is currently no such fuel ta...

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Problems solved by technology

Since there is no such automatic switching valve for fuel tank at present, it needs to be manually switched during operation, and its switching efficiency is low, its stability is relatively poor, and its durability is also relatively poor. Therefore, it is necessary to design a switching valve that can be used for automatic switching between two tanks

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