Split electronic delay control fuel oil heating system

Abstract

The invention discloses a split electronic delay control fuel oil heating system. The system comprises a double-cavity oil tank which is internally provided with a main oil tank and an auxiliary oil tank, and is characterized by further comprising a delay fuel oil switching valve, a main oil tank oil quantity sensor, an auxiliary oil tank oil quantity sensor, a heating water pipe and a fuel oil pipeline. The main oil tank oil quantity sensor and the auxiliary oil tank oil quantity sensor are fixed to the main oil tank and the auxiliary oil tank respectively, the delay fuel oil switching valveis fixed to a frame, and the main oil tank oil quantity sensor and the heating water pipe communicate with an engine to form cooling water circulation. The delay fuel oil switching valve makes the main oil tank oil quantity sensor and the auxiliary oil tank oil quantity sensor communicate with the engine to form fuel oil circulation through the fuel oil pipeline. By means of the delay fuel oil switching valve, after a vehicle is started, high-grade oil in a whole vehicle oil path can flow back into an auxiliary chamber, and the consumption of the expensive high-grade oil is reduced. Before parking, No.0 oil in the whole vehicle oil path flows back into the main oil tank first, so that the starting problem caused by oil mixing is avoided.

Description

technical field [0001] The invention relates to auto parts, in particular to a split-type electronic time-delay control fuel heating system. Background technique [0002] At present, the fuel heating system for fuel oil is mainly composed of a double-chamber fuel tank and an integrated fuel switching valve. The fuel switching valve integrates the switching of high and low grade fuel, fuel quantity indication, coolant heating and cooling pipe liquid electronic on-off functions. The fuel switching valve is fixed in the main chamber of the fuel tank, which is a manual switching structure; the main chamber of the double-cavity fuel tank is filled with 0# oil, and the auxiliary chamber is filled with high-grade oil with better frost resistance, such as -20#, -35#, and the high-grade oil is higher 0# oil is more expensive. [0003] In winter, use high-grade oil to start directly, and switch to 0# oil after the 0# oil in the main cavity is thawed during normal driving, which can s...

AI Technical Summary

Problems solved by technology

[0004] As the fuel is manually switched, after the coolant reaches a certain temperature or after a certain mileage or a certain period of time, the user judges that the fuel has been thawed based on experience, and then gets off the car and operates the switch handle to switch from high-grade diesel to 0# diesel, which is not accurate. It is possible that the fuel has not completely melted, causing the switching valve and fuel filter to be clogged, and the engine stalls; in addition, since the fuel tank is generally arranged on the left side of the vehicle, it is very unsafe to get off the vehicle, especially on the highway

[0005] In addition, due to the structural arrangement of the current integrated switching valve, when switching from No. 0 oil to high-grade oil before parking, the remaining No. 0 diesel in the oil circuit of the vehicle will flow back to the high-grade chamber, making the high-grade oil resistant The condensation performance is reduced, and the wax is easy to form in winter, which makes it difficult to start the vehicle on the second day

[0006] Chinese utility model patent CN201720179865.8 discloses an oil suction and water heating device for dual fuel tanks, which heats the engine cooling water to thaw the fuel in the main fuel tank, but the patent uses a manual switching valve to control the main and auxiliary There is no time-delay function for fuel switching, which cannot avoid the problem of clogging caused by switching too early and wasting high-grade diesel oil if switching too late

[0007] The publication number is CN 106917707 A Chinese invention patent discloses an automobile fuel tank switching valve with delayed fuel return function and its operation method, but the fuel tank switching valve is only used to automatically switch to another fuel tank after the fuel in one fuel tank is used up. It does not involve the switching of fuel in the two fuel tanks when the car is started and stopped in winter

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