Engine start preheating device

Abstract

The invention discloses an engine start preheating device, belongs to the field of automobile auxiliary devices, and aims at solving the problem of dry friction when an automobile is started in cold mode, and particularly when an automobile engine is started in cold mode under low temperature. The engine start preheating device is characterized in that a pre-lubricated oil pump (1), and a subsidiary oil tank (2) and a filter (3) which are respectively provided with heating devices are assembled into a whole sequentially through a communicating pipe (4), corresponding accessories and a seat board (5), and connected with an original oil pump lubrication system of the automobile engine together in parallel respectively through an oil inlet pipe (8) with a 1# check valve (6) and an oil outlet pipe (9) with a 2# check valve (7), and an electronic control disk (10) is installed on the seat board (5). The engine start preheating device can guarantee pre-lubrication when the automobile engine is started in cold mode, overcomes friction, is particularly suitable for pre-lubrication when the automobile engine under low temperature status is started in cold mode and starting of the automobile engine (18), can be conveniently and selectively used, is strong in integrality, easy to install, adjust and maintain, and convenient to operate, and facilitates standardization manufacture.

Description

technical field [0001] The invention belongs to the field of automobile auxiliary devices, and relates to an engine starting preheating device. Background technique [0002] In the prior art, when the automobile engine is cold started, almost all the lubricating oil supplied to the friction pair in the previous working state fell back into the oil pan (hereinafter referred to as the oil pan), so the main friction pair was in dry friction or critical friction State, this kind of dry friction (friction between metal and metal without lubricating oil) is ubiquitous, and some data show that 80% of engine wear comes from dry friction. Dry friction results in increased fuel and oil consumption, increased harmful exhaust emissions and ultimately premature engine failure. At low temperature in winter, especially in the environment of tens of degrees below zero, the dry friction of the engine caused by cold start is more serious than that caused by cold start in the general sense. ...

AI Technical Summary

Problems solved by technology

Dry friction results in increased fuel and oil consumption, increased harmful exhaust emissions and ultimately premature engine failure

At low temperature in winter, especially in the environment of tens of degrees below zero, the dry friction of the engine caused by cold start is more serious than that caused by cold start in the general sense. The resistance in the cleaner is greatly increased, and it is difficult for the oil to enter the friction pairs smoothly and evenly. When the engine is started, the dry friction time will inevitably increase, the degree of wear will increase, and the engine will be difficult to start.

As far as the existing engine cold start pre-lubrication technology to solve the dry friction problem is concerned, most of them use a pre-lubrication oil pump in parallel with the original engine oil pump lubrication system to perform pre-lubrication before the engine starts. The original oil filter is The two oil pumps share the disadvantages: first, there is no independent filter, and there is no heating in the pre-lubrication oil delivery system, so the flow of pre-lubrication oil is not smooth, or there is only a preheating device in the oil pan of the engine , its preheating function is very limited. First, the heating power is limited. Second, the total oil reserve in the oil chassis of large vehicles is more than 30 liters, and only a small part can be heated. It is collected in the oil chassis, so the heat is difficult to concentrate, so it is difficult to ensure the normal operation of the pre-lubrication oil pump, and it is also impossible to ensure the smooth pre-lubrication circulation circuit. It is not suitable for the pre-lubrication of the cold start of the engine at low temperature in winter. Second, the overall The performance is poor, the components are scattered, and it is not easy to install, detect, maintain and replace. Third, some strive to be convenient to use. The unreliable factors of the original engine starting system and pre-lubrication system are added, which is not conducive to user acceptance and use

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