Adjustable air make-up limitation engine
An engine and adjustable technology, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems affecting engine ignition and idling performance, affecting engine maximum power and climbing ability, and achieves low cost, simple structure, best run effect
Inactive Publication Date: 2011-07-06
CHONGQING LONCIN MOTOR
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Problems solved by technology
[0004] If the ordinary regulating valve structure is used to adjust the intake air volume, the air will still be supplemented and desorbed when the engine is running at low and high speeds, which will affect the ignition and idling performance of the engine, and will affect the maximum power and climbing ability of the engine when it is running at high speed
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[0020] figure 1 It is a structural schematic diagram of the present invention, figure 2 It is a structural schematic diagram of the low-speed closed state of the regulating valve, image 3 It is a schematic diagram of the structure of the high-speed closed state of the regulating valve, as shown in the figure: the engine of the adjustable limited gas supplement in this embodiment is a gasoline engine for motorcycles, including the engine body 1, the oil circuit system 2, the intake system 3 and the gas supplement system 4 The oil circuit system 2 and the air intake system 3 send the mixed gas into the engine body 1 through the carburetor 7; Filter 42, one-way valve I 43, three-way pipe 44, one-way valve II 46 and carbon canister 45 ensure that the added air is clean and does not flow back; the pipe between the fuel tank of oil circuit system 2 and the three-way pipe 44 The dump valve 21 is set on the road, and the carbon tank 45 is used for desorption and adsorption of fuel...
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The invention discloses an adjustable engine for limiting air supply. An air supply pipe of an air supply system of the engine is provided with an adjusting valve; the adjusting valve comprises a valve body, an adjusting valve core, a cylindrical valve core and a valve seat, wherein the valve seat is provided with a cylindrical passage; an air inlet and an air outlet of the adjusting valve are communicated with the cylindrical passage respectively; the adjusting valve core and the cylindrical valve core are longitudinally arranged in the cylindrical passage; the adjusting valve core is synchronically acted with a plunger of a carburetor and makes the opening of the adjusting valve be later than that of the plunger of the carburetor; and the cylindrical valve core is synchronically acted with the adjusting valve core and causes the adjusting valve to be closed after the adjusting valve core adjusts the stroke. The engine can adjust air supply amount according to the operating requirements of the engine, and cut off air supply while operating at a high speed or low speed, perform air supply at intermediate operating speed, and achieve the aims of fuel evaporation and engine front air supply (lean burn), controllability, adjustability, comprehensive utilization, energy conservation and emission reduction, thereby ensuring that the engine can be in the optimal operating state.
Description
technical field [0001] The invention relates to an internal combustion engine, in particular to an engine with adjustable air supplement limitation. Background technique [0002] Because the motorcycle engine is a high-speed gasoline engine, the formation process of the oil-gas mixture is short. Due to the short mixing time, it will cause uneven mixing, so the fuel is not fully burned, and CO and HC gases will appear in the exhaust gas, causing environmental pollution. In order to solve the above problems, the engine is equipped with an air supply system. In the prior art, there are two types of air supply devices: electronically controlled air supply and mechanical air supply. The electronically controlled air supply device includes an electronic control unit (ECU) and an electronically controlled air supply valve. The disadvantage is that it cannot be used without the widespread use of EFI. When the engine speed (suction frequency) of the mechanical air supply device is ...
Claims
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IPC IPC(8): F02M23/02
Inventor 苟孝贵胡小昕彭志强王鹏
Owner CHONGQING LONCIN MOTOR