Fuel temperature control valve and fuel temperature control system of vehicle

Abstract

The invention relates to the technical field of vehicle fuel systems, and discloses a fuel temperature control valve. The fuel temperature control valve comprises a first joint, a second joint and a third joint which communicate with one another, wherein a wax type sensor is installed in a hole of the first joint, an induction end of the wax type sensor extends out of the first joint, and the other end of the wax type sensor is provided with a push rod; the push rod abuts against a valve which slides in the hole of the first joint, the other end of the valve is provided with a first spring abutting against the valve, a first valve port cooperating with the valve is arranged in the first joint, a pressure valve and a second valve port cooperating with the pressure valve are arranged in thesecond joint, and a second spring which inwards abuts against the pressure valve is arranged in the second joint; and the invention further discloses fuel temperature control system of a vehicle usingthe fuel temperature control valve. According to the fuel temperature control valve and the vehicle fuel temperature control system, the high-temperature returned oil is controlled to enter a filteror a fuel tank according to the temperature of the fuel in the filter, so that the whole performance of the whole vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle fuel systems, in particular to a fuel temperature control valve and a vehicle fuel temperature control system. Background technique [0002] As the power source of the vehicle, the fuel system is an indispensable system in the normal operation of the engine. Its main function is to complete the storage, filtration and delivery of fuel. [0003] When the fuel in the fuel system comes out of the fuel tank, it is first filtered through the filter, and then enters the fuel injection system through the fuel pump, fine filter and high-pressure fuel pump. In winter, due to the low fuel temperature, it is easy to cause the filter to be waxed, which will cause the fuel in the fuel system to fail to circulate normally, and eventually the car will not start. [0004] Chinese utility model patent application (publication date: June 06, 2012, publication number: CN202266352U) discloses an automatic heating te...

AI Technical Summary

Problems solved by technology

However, this utility model heats the oil circuit through an external heat source, which wastes energy

[0005] At the same time, in the fuel system, about 50% of the fuel (referred to here as oil return, the temperature of the oil return is relatively high, generally reaching about 100°C) will return to the fuel tank, so that the high temperature oil return is carried out in the fuel tank. Cooling, this part of the heat cannot be used and wasted