Efficient low-resistance gasoline engine
A gasoline engine, high-efficiency technology, applied in mechanical equipment, engine components, engine control and other directions, can solve the problem of the engine weakening the ability of the engine to do external work, and achieve the effect of precise control of engine power, reduction of pumping loss, and precise fuel injection.
Active Publication Date: 2018-10-12
JIANGSU UNIV OF TECH
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Problems solved by technology
Therefore, when the engine is in a low-load working state, the pumping loss of the engine will seriously weaken the ability of the engine to do work
Method used
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[0024] see Figure 1-6 , the present invention provides a technical solution: a high-efficiency low-resistance gasoline engine, comprising a cylinder 5 and a crankcase 1, the cylinder 5 is composed of a cylinder block 3 and a piston 4, a connecting rod 2 is arranged in the crankcase 1, and one end of the connecting rod 2 Connected with the piston 4, the upper part of the cylinder 5 is provided with a combustion chamber 10 and a return air passage 14, the top of the cylinder 5 is provided with a fuel injector 9, the side of the cylinder 5 is provided with an intake pipe 8, and the cylinder 5 is located at the intake pipe 8. The door 6 and the fuel injector 9 are used to inject gasoline into the intake pipe 8. The other side of the cylinder 5 is provided with an exhaust pipe 11. The cylinder 5 is located at the exhaust pipe 11 and is provided with an exhaust valve 12. There is a forward gas flow meter 13, and the intake pipe 8 is sealed and connected with the return air passage ...
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The invention discloses an efficient low-resistance gasoline engine. The efficient low-resistance gasoline engine comprises an air cylinder and a crankcase, the air cylinder is composed of an air cylinder body and a piston, a connecting rod is arranged in the crankcase, and one end of the connecting rod is connected with the piston; a combustion chamber and a backflow air channel are arranged at the upper part of the air cylinder, and an oil sprayer is arranged at the top end of the air cylinder; an air inlet pipe is arranged on one side of the air cylinder, an inlet valve is arranged at the position, located at the air inlet pipe, of the air cylinder, an exhaust pipe is arranged on the other side of the air cylinder, and an exhaust valve is arranged at the position, located at the exhaustpipe, of the air cylinder; and a forward gas flowmeter is arranged on the air inlet pipe, the air inlet pipe is connected with the backflow air channel through a backflow air pipe, and a reverse gasflowmeter, a throttle valve and a differential pressure valve are arranged on the backflow air pipe. According to the efficient low-resistance gasoline engine, the throttle valve is removed from the air inlet pipe, so that the air inlet resistance in the air inlet pipe is reduced, and therefore the pumping loss of the gasoline engine is reduced.
Description
technical field [0001] The invention relates to the technical field of gasoline engines, in particular to a high-efficiency and low-resistance gasoline engine. Background technique [0002] For a naturally aspirated gasoline engine, the fuel injector sprays gasoline into the intake pipe to fully mix the gasoline with the air entering the intake pipe. Vacuum, the mixture is sucked into the cylinder from the intake valve. During this process, the throttle valve located on the intake pipe plays a role in controlling the intake air volume, and the opening of the throttle valve is controlled by the accelerator pedal. [0003] When the throttle valve opening is small, the airflow speed in the intake pipe is slow, the intake air volume per unit time is small, and the fuel injection volume of the corresponding fuel injector is also small. The power is small; when the throttle valve opening is large, the airflow speed in the intake pipe is fast, the intake air volume per unit time ...
Claims
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IPC IPC(8): F02B75/32F02D41/30F02D9/02F02M35/10
CPCF02B75/32F02D9/02F02D41/30F02M35/10373
Inventor 张焱李国庆袁传义胡淳
Owner JIANGSU UNIV OF TECH