4 results about "Single-cylinder engine" patented technology

A single-cylinder engine includes a cylinder and a cylinder head stacked on an upper portion of a crankcase, and an electronically controlled throttle interposed in an intake passage behind the cylinder head. The vehicle body frame includes a pair of main frames extending rearward from a head pipe, and rear portions of the pair of main frames form a pair of body frames bent downward behind the cylinder head. The electronically controlled throttle includes a throttle valve provided in the intake passage and an actuator that opens and closes the throttle valve. In a side view, an upper edge of the actuator is along a lower edge of the suspension bracket, and a rear edge of the actuator is along front edges of the body frames.

The application discloses an engine with air cooling-liquid cooling cooperation and a grading control method, relates to single cylinder engine cooling technology, and comprises a single cylinder body and a liquid cooling circulation loop; the outside of a cylinder head of the single cylinder body is provided with heat dissipation fins, the inside of the cylinder head is provided with a cooling water channel, the cylinder head is simultaneously provided with a water inlet and a water outlet, and the height position of the water outlet is located above the water inlet, so that the cooling in the cooling water channel forms an inverse flow flow mode of down-in and up-out; after cooling liquid is pumped into the water inlet, the cooling liquid flows through the cooling water channel from bottom to top and finally flows out from the water outlet at the top, thereby forming forced reverse convection from bottom to top; the liquid cooling circulation loop is composed of an electric water pump, a radiator, an electronic thermostat, a connecting pipeline and the cooling water channel. The application realizes accurate control of engine temperature, energy saving and emission reduction, and the cooling effect of the engine is better.

This invention discloses a two-stage combustion six-stroke engine, comprising a single-cylinder engine body, a fuel injector, and a valve train unit disposed on the cylinder head; the valve train unit includes a gas reservoir, a first intake port, a second intake port, and a gas injector, used to compress and store gas and release gas; the center of the injector nozzle is located on a first axis; the centers of the gas reservoir and the injector nozzle are located away from the first axis to form tumble flow in the combustion chamber; the six-stroke engine utilizes the gas reservoir and part of the first intake port to achieve two consecutive compression and combustion of the working fluid in the same cylinder; moreover, in the second compression and combustion power stroke, the gas injected into the combustion chamber by the gas injector interacts with the in-cylinder airflow formed near the gas reservoir, forming enhanced tumble flow in the combustion chamber.

The application discloses a single-cylinder engine intake and exhaust pressure boundary control device and method, and relates to the technical field of single-cylinder engines. The control device comprises a single-cylinder engine, an air compressor connected to the air inlet end of the single-cylinder engine, and an exhaust manifold connected to the air outlet end of the single-cylinder engine. The air inlet control module comprises an air inlet fluctuation valve connected between the air compressor and the single-cylinder engine, which is used for adjusting the control parameters of the first gas provided by the air compressor, so that the first gas meets the air inlet requirements of the single-cylinder engine. The exhaust control module comprises an exhaust fluctuation valve connected between the single-cylinder engine and the exhaust manifold, which is used for adjusting the control parameters of the second gas discharged by the single-cylinder engine, so that the second gas meets the exhaust requirements of the single-cylinder engine. In this way, by arranging the air inlet fluctuation valve and the exhaust fluctuation valve, the fluctuation amplitude, waveform and period of the single-cylinder engine intake and exhaust are controlled, and then the single-cylinder engine intake and exhaust pressure boundary is controlled, and the control precision of the intake and exhaust pressure boundary is improved.