32results about How to "Increase medium and high speed power" patented technology

The invention provides a variable compression engine. The problem about the unified compression ratio of different engine loads in the prior art is solved. The technical scheme is achieved in the manner that the variable compression engine comprises an air cylinder head, a motor and a variable compression piston. The variable compression piston is installed at the position of a combustion chamber of the air cylinder head and is connected with the motor. Due to a vehicle-mounted ECU control motor, the compression ratio of the engine during low-load running and the compression ratio of the engine during medium-load running and high-load running are completely different, the ignition position is also changed along with different compression ratio states, and the requirement for different compression ratios and different ignition positions when different engine loads and different engine rotating speeds are adopted is met, and therefore the power and the momentum of the engine are improved by improving the combustion efficiency of fuel.

The invention proposes a variable compression ratio engine, which solves the problem of uniform compression ratio with different engine loads in the prior art. The technical solution of the present invention is achieved as follows: a variable compression ratio engine, which includes a variable compression ratio mechanism capable of changing the mechanical compression ratio, and makes the compression ratio of the engine when the engine is running at a low load and the middle load and high engine load The compression ratio is completely different when the load is running, so that different compression ratios and ignition times can be achieved when different engine loads and different engine speeds are met. Thereby, the power and power of the engine are improved.

A variable compression piston, which is characterized in that the front surface of the variable compression piston and the combustion chamber of the cylinder head are arc-shaped, and the front surface of the variable compression piston constitutes the second combustion chamber. The second combustion chamber and the combustion chamber of the cylinder head work together; the periphery of the variable compression piston has at least one annular groove and a telescopic rod protruding from the inner surface, and the outer circle of the telescopic rod is designed with an external thread and an inner circular through hole and designed A spark plug seat, at least two sides of the fox surface of the second combustion chamber are provided with scavenging holes leading to the side of the intake valve and the side of the exhaust valve. In the corresponding position, the spark plug seat moves synchronously with the variable compression piston to ensure that the flame of the spark plug is always kept at the center of the second combustion chamber, which is beneficial to the ignition and propagation of the combustible mixture.

The invention provides a system and method for controlling an engine valve spring. The method comprises the steps that the pressure of the valve spring is adjusted on the basis of the engine rotation speed, valve spring pressure adjustment comprises adjustment on electric control connected with an oil pump, the oil pump controls the lift of a base, and lift control is conducted on the basis of the oil supply amount of the oil pump to the base. For example, when the engine rotation speed is changed to 2,000 r/min from the idle speed which is 700 r/min, a piston is pushed through oil pumping of the oil pump to be pushed to move upwards from the start point, the valve spring pressure is increased, and the valve reset speed becomes high.

The invention relates to an electrical-controlled engine having variable compression ratios and variable oil injection positions. The electrical-controlled engine comprises a variable compression ratio mechanism and an oil injection nozzle, wherein the variable compression ratio mechanism can change mechanical compression ratios; the oil injection nozzle and a telescopic mechanism synchronously apply work; besides, the compression ratio when the engine operates at a low load is completely different from the compression ratio when the engine operates at a medium load and the compression ratio when the engine operates at a high load, and the oil injection position when the engine operates at the low load is completely different from the oil injection position when the engine operates at the medium load and the oil injection position when the engine operates at the high load, so that the situations that when engine loads are different and engine speeds are different, the compression ratios are different and the oil injection positions are different are met; the oil injection positions are changed along with the changes of the compression ratios, the generated effect of the changes of the oil injection positions can realize the consistency effect of a combustible gas mixture in a second combustion chamber in a variable compression piston in different positions, and the work of ignition moment is assisted, so that different compression ratios and different oil injection positions for different engine loads and different engine speeds are met, the combustion efficiency of fuel oil is improved, the power capability and the power of the engine are improved, carbon accumulation is reduced, and the service life of a rocker arm, the service life of a cam shaft and the service life of a timechain are effectively prolonged.

The invention provides an engine with the variable compression ratio. According to the engine, the problem of the unified compression ratio of different engine loads in the prior art is solved. According to the technical scheme, the engine with the variable compression ratio comprises a variable compression ratio mechanism capable of changing the mechanical compression ratio, the compression ratioduring low-load operation of the engine is completely different from the compression ratio during medium-load and high-load operations of the engine so that requirements for the different compressionratios and ignition time of different engine loads and different engine rotating speeds can be met, and therefore the rate of work and the power of the engine are improved.

The invention provides a setting method for valve pressure. The setting method includes the steps that the pressure of a spring of the valve is adjusted according to the rotating speed of an engine through a vehicle-mounted ECU based on the input order of a control device; furthermore, the control device inputs corresponding numbers so as to set the rotating speed work value of the engine; due to the fact that the rotating value of the engine includes the set value, the vehicle-mounted ECU adjusts work of an electromagnetic attraction motor when the rotating speed of the engine reaches the value, and a lift device is pushed to the final position; and when the rotating speed of the engine is smaller than the set value, the lift device is shrunk to the starting position.

The invention proposes an engine with electronically controlled variable compression ratio and ignition position, which solves the problem of uniform compression ratio with different engine loads in the prior art. The technical solution of the present invention is achieved in this way: a variable compression ratio engine, comprising: a cylinder head, a motor, a variable compression piston, the variable compression piston is installed at the combustion chamber of the cylinder head and connected with the motor, and the vehicle-mounted ECU controls The electric motor makes the compression ratio when the engine is running at low load completely different from the compression ratio when the engine is running at medium load and high load, so as to realize different compression ratios and ignition timings when meeting different engine loads and different engine speeds. Thereby, the power and power of the engine are improved.

The invention provides a control method for a variable-compression-ratio engine. The control method solves the problem of unified compression ratio of different engine loads in the prior art. According to the technical scheme of the control method, the variable-compression-ratio engine comprises a variable-compression-ratio mechanism capable of changing the mechanical compression ratio, in addition, the compression ratio during low-load operation of the engine is completely different from the compression ratio during medium-load and high-load operation of the engine, so that different compression ratios and ignition time during different engine loads and different engine rotating speeds can be realized, and therefore, the power and the driving force of the engine can be improved.

The invention discloses an intelligent control device which comprises a setting device connected with an electronic control unit (ECU), wherein keys for setting and a display area are arranged on the setting device; the keys comprise number keys, an enter key and a delete key; corresponding numbers are input by the digital keys to set a rotation speed working value of an engine; the vehicle-mounted ECU pushes a lifting device to a destination position according to an operation that the set rotation speed value of the engine contains the setting value and the set rotation speed value is adjusted to a magnetic absorber and a motor when a camshaft and a rocker arm are in a non-joint state; and the lifting device is retracted to a starting point position when the rotation speed value is less than the set value.

The invention provides a piston with the variable compression ratio. According to the piston, the problem of the unified compression ratio of different engine loads in the prior art is solved. According to the technical scheme, an engine with the variable compression ratio comprises a variable compression ratio mechanism capable of changing the mechanical compression ratio, the compression ratio during low-load operation of the engine is completely different from the compression ratio during medium-load and high-load operations of the engine so that requirements for the different compression ratios and ignition time of different engine loads and different engine rotating speeds can be met, and therefore the rate of work and power of the engine are improved.

The invention proposes a method for controlling the position of the fuel injection nozzle in the engine, which solves the problems in the prior art that the uniform compression ratio and fuel injection timing of different engine loads are not variable. The technical solution of the present invention is achieved as follows: a method for controlling the position of a spark plug in an engine, including: adjusting the oil supplied to the hydraulic chamber based on the different rotational speeds of the engine, adjusting the oil supplied to the hydraulic chamber to increase the oil capacity will Prompting the variable compression piston to extend or adjusting the supply to the hydraulic chamber to reduce the oil capacity will cause the variable compression piston to retract, and the extension or retraction of the variable compression piston will realize the engine oil injection position and injection timing. Variety. According to the demand of the engine for the load, the fuel injection timing can be changed to achieve the power when the load is low and the power when the load is high.

The invention proposes a piston with variable compression ratio and ignition position, which solves the problem of uniform compression ratio and invariable ignition position of different engine loads in the prior art. The technical solution of the present invention is achieved in the following way: a piston with variable compression ratio and ignition position, characterized in that the fox surface of the variable compression piston constitutes a second combustion chamber, and the second combustion chamber is connected with the first combustion chamber of the cylinder head. A combustion chamber works together; the variable compression piston projects a support column from the inside, and at least one spark plug seat hole is designed in the support column, and the spark plug seat hole is used for installing a spark plug. The surface of the second combustion chamber of the variable compression piston and the surface of the first combustion chamber of the cylinder head are arc-shaped, spherical or conical. To meet the combustion efficiency at different engine loads and different engine speeds, so as to improve the fuel combustion efficiency and improve the power and power of the engine.