One-way valve type oil-gas conversion switch

Abstract

The invention belongs to the field of engines, and relates to a check valve type oil and gas conversion switch which comprises a switch base, a cover plate, a disc and a handle. The disc is rotationally connected with an accommodating groove, and the handle is fixed onto the disc; the disc is provided with an oil channel and a gas channel, the oil channel and the gas channel are staggered from each other in the up-down direction, two openings are respectively formed in two ends of the oil channel, two openings are respectively formed in two ends of the gas channel, the openings of the oil channel and the openings of the gas channel face the side surfaces of the oil channel and the side surfaces of the gas channel respectively, the positions where an oil inlet hole and an oil outlet hole are formed and the directions of openings of the oil inlet hole and the oil outlet hole are respectively opposite to the two openings of the oil channel, the positions where a gas inlet hole and a gas outlet hole are formed and the directions of openings of the gas inlet hole and the gas outlet hole are respectively opposite to the two openings of the gas channel, spherical valves with sealed openings are arranged in orifices of the oil inlet hole, the oil outlet hole, the gas inlet hole and the gas outlet hole, springs for increasing the pressures of the spherical valves on the orifices are arranged on the spherical valves, and the cover plate is fixed onto an end surface of the switch base to seal the opening of the accommodating groove. The check valve type oil and gas conversion switch has the advantages that oil and gas can be prevented from being combusted in a mixed manner, and accordingly the purpose of protecting engines can be achieved.

Description

technical field [0001] The invention belongs to the field of engines and relates to a one-way valve type oil-gas conversion switch. Background technique [0002] At present, domestically produced gasoline engines all use fuel oil as the power source, causing heavy pollution and high fuel consumption. With the rise of oil prices and the improvement of environmental protection requirements, single-fuel gasoline engines have become less and less suitable for the requirements of social development. CNG is short for Compressed Natural Gas. CNG is a non-toxic, odorless, colorless gas with low price, no carcinogens such as benzene, lead, sulfur (exhaust pollution is 1 / 3 of gasoline), and no carbon deposits in the working area, no dilution of engine oil, and no engine wear Small (can save 50% of engine oil costs), abundant reserves, easy storage and transportation, etc., it is the most ideal gasoline substitute at present. Although the gasoline engine that uses CNG as fuel can so...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to ensure that only one kind of fuel enters the carburetor through the switch base at any time, so as to prevent the mixed combustion of oil and gas in the engine. The oil is brought into the gas pipeline, on the contrary, during the process of converting from gas to oil, the gas will also be brought into the oil pipeline, and there will still be a problem of mixed combustion, and each conversion will mix, causing damage to the engine , affect the use of the engine, and even affect the performance and life of the engine

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