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

The invention proposes a motor vehicle, comprising: an engine, and a cylinder head installed on the engine, one end of the valve spring withstands the pressure plate of the valve spring, and the other end withstands the lifting seat, and the lifting seat is installed on the cylinder head. On the valve seat; there is a balance weight and at least one lifter inside the lifting seat. Wherein, adjusting the pressure of the inner spring of the valve includes adjusting the electric control connected with the lifter. Includes electrical control that adjusts to the lifter based on engine speed. Adjust the pressure of the valve inner spring when the engine speed is high and adjust the pressure of the valve inner spring to be small when the engine speed is low. Realize increasing the pressure of the inner spring of the valve when the engine speed is high and reducing or canceling the pressure of the inner spring of the valve when the engine speed is low.

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.

The invention discloses a variable compression ratio engine. The problem that a unified compression ratio of different engine loads in the prior art is solved. According to the technical scheme, the variable compression ratio engine comprises a cylinder head, a motor and a variable compression piston, wherein the variable compression piston is installed at a combustion chamber of the cylinder headand is connected with the motor, a vehicle-mounted ECU controls the motor to enable the compression ratio during a low-load operation of the engine to be completely different from the compression ratio during a load operation and a high-load operation in the engine, different engine loads and different compression ratios and ignition time of different engine rotating speeds which can be met are realized; and therefore, the power and dynamic power of the engine are improved.

The invention provides a variable compression piston. By means of the variable compression piston, the problem that in the prior art, the compression ratio is unified under different engine loads is solved. According to the technical scheme, the variable compression piston is characterized in that a piston body is connected with an extending-and-contracting rod; a second combustion chamber is formed by a cambered surface of the variable compression piston; and the second combustion chamber and a combustion chamber of a cylinder head act jointly. A vehicle-mounted ECU controls a motor, and thecompression ratio formed when an engine operates at the low load is completely different from those formed when the engine operates at the medium load and the high load; and different compression ratios and ignition time are achieved when the engine loads and engine rotating speeds are different. Therefore, the power and impetus of the engine are increased.

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 method for controlling the shape of a combustion chamber arranged in an engine. The method comprises the steps that different positions of a second combustion chamber arranged in a cylinder head in the first combustion chamber are adjusted on the basis of different engine rotation speeds, wherein the different positions are obtained on the basis of oil contained in a hydraulic cavity formed between the cylinder head and a variable compression piston; the volume of oil supplied into the engine cylinder head is adjusted, wherein an electric oil pump or a pressure release valve is adjusted, stretching or retracting of the variable compression piston can be changed by increasing the oil volume or decreasing the oil volume, and then the different positions of the second combustion chamber in the first combustion chamber are achieved. Therefore, the work rate of the engine is increased, power of the engine is improved, and fuel oil is saved.

The invention provides a piston with the variable compression ratio and the variable oil injection position. The piston is characterized in that an arc surface of the variable compression piston formsa second combustion chamber, the second combustion chamber and a combustion chamber of a cylinder head jointly act, a supporting column protrudes from the inner side of the variable compression piston, and at least one oil nozzle hole is formed in the supporting column. According to the piston, the oil spraying position is changed along the state of different compression ratios so that the different compression ratios and the different oil injection positions of different engine loads and different engine rotating speeds can be met, and therefore the combustion efficiency of fuel is improved,and the work rate and the power of an engine are improved.

The invention provides a variable-compression-ratio cylinder head. By adoption of the variable-compression-ratio cylinder head, the problem that in the prior art, the compression ratio under differentengine loads is constant is solved. According to the technical scheme, the variable-compression-ratio cylinder head comprises a variable-compression ratio mechanism capable of changing the compression ratio of a machine to make the compression ratio of an engine operating under a low load completely different from the compression ratio of the engine operating under a high load, and the requirement for the different compression ratios and the ignition time under different engine loads and different engine rotating speeds are met. Thus, the power and dynamic property of the engine are improved.

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 method for controlling different positions of a fuel spray nozzle in a combustion chamber. The method comprises the steps that work supplied to a motor is adjusted based on different rotating speeds of an engine, the increasing rotation angle supplied to the motor is adjusted so as to promote a variable compression piston to stretch out or the decreasing rotation angle supplied to the motor is adjusted so as to promote the variable compression piston to retract, and the fuel spray position of the fuel spray nozzle in the combustion chamber is changed through stretching or retraction of the variable compression piston. The fuel spray position is also changed in the state of different compression ratios, the requirements for different compression ratios and different fuel spray positions when different engine loads and different engine rotating speeds exist are met, the fuel combustion efficiency is improved, and therefore the work rate and power of the engine are improved.

The invention provides an air cylinder head variable in compression ratio. The air cylinder head comprises a hydraulic cavity. The hydraulic cavity is connected with an oil inlet nozzle. The air cylinder head is provided with a sliding hole which is used for allowing a telescopic rod to be inserted, and a motion track of a variable compression piston is balanced with that of the air cylinder head. The position, close to a combustion chamber, of the hydraulic cavity is used for installing a motor and the variable compression piston. An oil injection nozzle moving synchronously with the variable compression piston is installed on the variable compression piston. The oil injection position is changed along with the change of the compression ratio, the effect that combustible mixed gas in a second combustion chamber of the variable compression piston is consistent during different positions is achieved through the effect produced by the change of the oil injection position, the work at the ignition time is assisted so that different compression ratios and different oil injection positions during different engine loads and different engine rotation speeds can be met, and thus the power and the impetus of an engine are improved by improving the combustion efficiency of fuel oil.

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 vehicle-mounted ECU. The vehicle-mounted ECU is characterized in that a first end of the vehicle-mounted ECU is connected with an accelerator position sensor, a second end is connected with an engine rotating speed sensor, a third end is connected with a variable compression piston position sensor, a fourth end is connected with a motor, and a fifth end is connected with an oil nozzle; when the accelerator position sensor 1 is larger than the engine rotating speed sensor 1, or the accelerator position sensor 1 is not changed and positioned on a slope, and the engine rotating speed sensor 1 is lowered to be smaller than the accelerator position sensor 1, a variable compression piston shrinks back into a cylinder head to reduce a compression ratio so as to improve the engine power; and when the engine rotating speed is gradually increased to accord with the accelerator position 1, the variable compression piston extends out of the cylinder head to move to a cylinder combined surface to reduce the space of a combustion chamber so as to realize increment of the compression ratio to achieve the effects of reducing fuels and improving the power.

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 proposes an assembly method of the lift device: first step, the electromagnetic suction and the motor are installed, the runner is installed on the rotor, the shaft center of the rotor is designed as a hollow core, the electromagnetic suction is installed at the bottom of the stator and leads out Two electrical contacts or power lines, the spring is inserted from one end of the push rod to the stepped position of the push rod, the snap piece on the push rod, the push rod is inserted into the rotor and the rotor is inserted into the stator so that the other end of the spring withstands the electromagnetic In the second step, the installed lifters are respectively set on both sides of the balance weight, that is, a lifter is installed on each side of the balance weight; in the third step, the occlusal pieces on both sides are compressed and contracted inward by external force, and then Insert the piston from the runner into rolling combination with the inner wall of the piston; in the fourth step, when the piston descends to the position of the occlusal piece, loosen the occlusal piece to make it integrated.

The present invention proposes a control method for a vehicle-mounted ECU, which includes: adjusting the extension or retraction of the variable compression piston and the advance and retreat of the ignition time based on changes in the accelerator position and engine speed. The technical solution of the present invention is achieved in that the variable compression piston is installed at the combustion chamber place of the cylinder head and is connected with the motor, and the vehicle-mounted ECU controls the motor so that the compression ratio when the engine is running at low load is consistent with the middle load and high load running of the engine. The compression ratios at different times are completely different, so as to realize different compression ratios and ignition times for different engine loads and different engine speeds. Thereby, the power and dynamics of the engine are 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.