Multidirectional adjustable rotary valve gas distribution device for engine and bidirectional adjustable gas distribution method

Abstract

A multidirectional adjustable rotary valve air distribution device for an engine comprises a valve element, a valve element sleeve, a valve seat, a right bearing, a left bearing, a left end cover, a right end cover, a left mechanical sealing ring, a right mechanical sealing ring, a left sealing ring, a right sealing ring and a servo rotating motor. According to the two-way adjustable gas distribution method for the engine, the device is adopted, the left servo rotating motor serves as power to drive the valve element to rotate in the valve element sleeve, the right servo rotating motor serves as power to drive the valve element sleeve to rotate in the valve seat, and the rotating transformer is adopted to monitor and accurately control the rotating position of the gas inlet valve element relative to the valve seat in real time; therefore, the stop and communication of gas distribution are realized; the rotary transformer is used for monitoring and accurately controlling the rotating position of the air inlet valve element sleeve relative to the valve seat in real time, and the adjustment of the air distribution amount is achieved. The device has the advantages of being compact in structure, stable in gas supply, convenient to use and adjust and the like, vibration generated by gas distribution of the engine can be reduced, and good market popularization prospects are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile engine automatic control, and relates to a multi-directional adjustable rotary valve gas distribution device for an engine, and also relates to a bidirectional adjustable gas distribution method for an engine. Background Art

[0002] The engine valve train has side valves and overhead valves. Excellent valve train structure makes an outstanding contribution to improving combustion quality. The engine valve train has also become a hot topic in modern internal combustion engine research.

[0003] As one of the core components of the engine, the performance of the valve train directly affects the intake and exhaust efficiency of the engine. The traditional valve train has certain limitations in the adjustment accuracy of the valve timing and the valve volume, and also has disadvantages such as high noise and difficulty in adjustment.

[0004] In order to meet the development requirements of high speed, high precision and low energy consumption of the engine, a multi-directional adjustable rotary valve gas distribution device and method for the engine are designed. Based on the AC servo motor technology, the precise combination of servo motor and rotary valve control is realized, which has outstanding engineering practical value. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-directional adjustable rotary valve gas distribution device for an engine, which can achieve accurate gas distribution to the engine cylinders and adjust the gas distribution volume of the engine cylinders.

[0006] Another object of the present invention is to provide a bidirectional adjustable valve timing method for an engine to solve the problem that the traditional valve timing device of the engine cannot flexibly adjust the opening and closing time and duration of the valve according to different working conditions; and in the traditional engine, the friction and inertia force generated by the components of the valve timing device during movement consume the power of the engine, increase noise, and reduce transmission efficiency.

[0007] A technical solution adopted by the present invention is: a multi-directional adjustable rotary valve gas distribution device for an engine, including a valve core 1, a valve core sleeve 2, a valve seat 3, a right bearing 4, a left bearing 5, a left end cover 6, a right end cover 7, a left mechanical seal ring 8, a right mechanical seal ring 9, a left seal ring 18, a right seal ring 19 and a servo rotary motor, and the bottom of the rotary valve is directly connected to the inside of the cylinder.

[0008] The servo rotary motor comprises a transparent cover 10, a casing 11, a motor stator 12, a motor rotor 13, a blind cover 14, a motor main shaft 15 and a rotary transformer; the transparent cover 10 and the blind cover 14 are respectively fixedly connected to the two ends of the casing 11, and together with the casing 11, they form the outer shell of the servo rotary motor; the motor main shaft 15 is fixedly connected to the motor rotor 14, and is placed at the core of the servo rotary motor, and the motor main shaft 15 is supported on bearings at both ends of the servo rotary motor; the rotary transformer can be divided into a rotary variable rotor 16 and a rotary variable stator 17, the rotary variable stator 17 is fixedly connected to the blind cover 14, and the rotary variable rotor 16 is fixedly connected to the motor main shaft 15; the output end of the left motor main shaft is fixedly connected to the valve core 1, and the output end of the right motor main shaft is fixedly connected to the valve core sleeve 2.

[0009] The valve core 1 is a cylindrical structure, and two mutually perpendicular ventilation grooves are respectively opened on the outer circumferential surface of the valve core 1, and two adjacent air outlet grooves in the axial direction differ by 90° on the outer circumferential surface; the valve core sleeve 2 is a shell-drawn cylinder with one end face open, and there are ventilation grooves on the outer circumferential surface of the valve core sleeve 2, and the ventilation grooves are spaced 60° in the circumferential direction, and the ventilation grooves are arranged from small to large in sequence, each ventilation groove has a notch of the same size near the outer circumferential surface, and the valve core sleeve 2 has ventilation grooves with the same characteristics on the right end face; the valve seat 3 is a structure of two cylinders placed vertically, and has positions for placing the valve core 1, valve core sleeve 2, right bearing 4, left bearing 5, left end cover 6, right end cover 7, left mechanical seal ring 8, right mechanical seal ring 9, left seal ring 18 and right seal ring 19 in the horizontal direction, the longitudinal inlet and outlet channels are vertically connected, and an arched groove for placing the fuel injector is opened at the bottom of the valve seat.

[0010] Another technical solution adopted by the present invention is: a two-way adjustable gas distribution method for an engine, using a multi-directional adjustable rotary valve gas distribution device for an engine, and the specific operation process is: the left servo rotary motor is used as the power for the valve core 1 to rotate in the valve core sleeve 2; the rotary transformer monitors and accurately controls the rotation angle of the valve core 1 relative to the valve seat 3 in real time, and the right servo rotary motor is used as the power for the valve core sleeve 2 to rotate in the valve seat 3, and the rotary transformer monitors and accurately controls the rotation angle of the valve core sleeve 2 relative to the valve seat 3 in real time; the engine is realized when working. The connection and disconnection between the air outlet groove and the corresponding air inlet and outlet pipes realizes the air supply and exhaust in the cylinder according to the working sequence and the adjustment of the air supply and exhaust volume; among the four air grooves on the outer circumferential surface of the valve core 1, the axially adjacent two air grooves differ by 90° in the circumferential direction, ensuring that the servo rotary motor rotates one circle and the rotary valve completes one air intake and exhaust. The air outlet grooves on the outer circumferential surface of the valve core sleeve 2 are spaced 60° apart to adjust the air intake and exhaust volume; the speed of the servo rotary motor on the left side is adjusted to change the adjustment of the air supply and exhaust timing; the servo rotary motor on the right side rotates to adjust the air supply and exhaust volume.

[0011] The beneficial effects of the present invention are as follows: a multi-directional adjustable rotary valve gas distribution device for an engine adopts a servo rotary motor to accurately rotate the valve core 1 relative to the valve seat 3, thereby connecting or disconnecting the air intake port of the cylinder and the pipeline between the cylinder and the exhaust port, and adjusting the intake phase and the exhaust phase according to the rotation control of the servo rotary motor; by rotating the angle of the adjustment sleeve by the right servo rotary motor, the size of the air intake port and the exhaust port is changed, thereby changing the intake volume and exhaust volume; the device has the advantages of compact structure, stable gas distribution, easy use and adjustment, etc., and has broad market prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the working diagram of the air intake of the present invention.

[0013] Figure 2 It is a working diagram of the exhaust of the present invention.

[0014] Figure 3 It is a structural diagram of the valve core of the present invention.

[0015] Figure 4 It is a structural diagram of a valve core sleeve of the present invention.

[0016] Figure 5 It is the appearance diagram of the valve seat of the present invention. DETAILED DESCRIPTION

[0017] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A multi-directional adjustable rotary valve gas distribution device for an engine comprises a valve core 1, a valve core sleeve 2, a valve seat 3, a right bearing 4, a left bearing 5, a left end cover 6, a right end cover 7, a left mechanical seal ring 8, a right mechanical seal ring 9, a left seal ring 18, a right seal ring 19 and a servo rotary motor; the valve core 1 is assembled inside the valve core sleeve 2, the valve core sleeve 2 is assembled inside the valve seat 3, the valve core 1 and the left bearing 5 are sealed by the left mechanical seal ring 8, and the valve core sleeve 2 and the right bearing 4 are sealed by the right mechanical seal ring 9; the right vertical airway of the valve seat 3 is an intake passage, and the left vertical airway is an exhaust passage; the bottom of the rotary valve is directly connected to the inside of the cylinder.

[0019] The servo rotary motor includes a transparent cover 10, a casing 11, a motor stator 12, a motor rotor 13, a blind cover 14, a motor main shaft 15 and a rotary transformer; the transparent cover 10 and the blind cover 14 are respectively fixedly connected to the two ends of the casing 11, and together with the casing 11, they form the outer shell of the servo rotary motor; the motor main shaft 15 is fixedly connected to the motor rotor 14 and placed at the core of the servo rotary motor, and the motor main shaft 15 is supported on bearings at both ends of the servo rotary motor; the rotary transformer can be divided into a rotary variable rotor 16 and a rotary variable stator 17, the rotary variable stator 17 is fixedly connected to the blind cover 14, and the rotary variable rotor 16 is fixedly connected to the motor main shaft 15; the output end of the left motor main shaft is fixedly connected to the valve core 1, and the output end of the right motor main shaft is fixedly connected to the valve core sleeve 2.

[0020] The valve core 1 is a cylindrical structure, and two mutually perpendicular ventilation grooves are respectively opened on the outer circumferential surface of the valve core 1, and two adjacent air outlet grooves on the outer circumferential surface differ by 90° in the circumferential direction; the valve core sleeve 2 structure is a shell-drawn cylinder with an open left end face, and there are ventilation grooves on the outer circumferential surface of the valve core sleeve 2. The ventilation grooves are spaced 60° in the circumferential direction, and the ventilation grooves are arranged from small to large in sequence. Each ventilation groove has a notch of the same size near the outer circumferential surface, and the valve core sleeve 2 has ventilation grooves with the same characteristics on the right end face; the valve seat 3 structure is two cylinders placed vertically, and there are positions for placing the valve core 1, valve core sleeve 2, right bearing 4, left bearing 5, left end cover 6, right end cover 7, left mechanical seal ring 8, right mechanical seal ring 9, left seal ring 18, and right seal ring 19 in the horizontal direction, and the longitudinal inlet and outlet channels are vertically penetrated, and an arched groove for placing the fuel injector is opened at the bottom of the valve seat.

[0021] The working process of air intake and exhaust and adjusting the air intake and exhaust volume:

[0022] The rotation of the right motor drives the valve core sleeve 2 to rotate, determines the size of the flow surface of the inlet and exhaust ports, and the air enters the intake pipe of the valve seat 3 through the intake manifold. Driven by the left motor main shaft, the valve core 1 rotates to connect the intake groove with the pipe, so that the air passes through the rotary valve to reach the upper part of the piston and the cylinder; when the exhaust gas is discharged, the exhaust gas enters the rotary valve from the upper part of the piston and the cylinder, and driven by the left motor main shaft, the valve core 1 rotates to connect the exhaust groove with the pipe, so that the exhaust gas passes through the rotary valve into the exhaust manifold and is discharged; and the valve core sleeve 2 can adjust the size of the flow surface of the inlet and exhaust ports in real time under the rotation of the right motor.

[0023] A bidirectional adjustable gas distribution method for an engine:

[0024] The left servo rotary motor is used as the power to drive the valve core 1 to rotate inside the valve core sleeve 2, and a rotary transformer is used to monitor and accurately control the rotation position of the valve core 1 relative to the valve seat 3 in real time, so as to realize the opening and closing of the intake and exhaust grooves and the corresponding intake and exhaust ports, and realize the air supply and exhaust of the cylinder; the right servo rotary motor is used as the power to drive the valve core sleeve 2 to rotate inside the valve seat 3, and a rotary transformer is used to monitor and accurately control the rotation position of the valve core sleeve 2 relative to the valve seat 3 in real time, so as to adjust the size of the valve port flow surface and adjust the air supply and exhaust volume of the cylinder; the sensor detects the different phases of the crankshaft to make the left servo motor work, which reduces the vibration consumption in the valve mechanism and improves the efficiency of the engine.

Claims

1. A multi-directional adjustable rotary valve gas distribution device for an engine, characterized in that: It comprises a valve core (1), a valve core sleeve (2), a valve seat (3), a right bearing (4), a left bearing (5), a left end cover (6), a right end cover (7), a left mechanical seal ring (8), a right mechanical seal ring (9), a left seal ring (18), a right seal ring (19) and a servo rotary motor; The valve core (1) is assembled inside the valve core sleeve (2), the valve core sleeve (2) is assembled inside the valve seat (3), the valve core (1) and the left bearing (5) are sealed by a left mechanical seal ring (8), and the valve core sleeve (2) and the right bearing (4) are sealed by a right mechanical seal ring (9); The bottom of the rotary valve is directly connected to the inside of the cylinder; the servo rotary motor comprises a transparent cover (10), a housing (11), a motor stator (12), a motor rotor (13), a blind cover (14), a motor main shaft (15) and a rotary transformer; The transparent cover (10) and the blind cover (14) are respectively fixedly connected to the two ends of the housing (11), and together with the housing (11) form an outer shell of the servo rotary motor; the motor main shaft (15) is fixedly connected to the motor rotor (14) and is placed at the core of the servo rotary motor, and the motor main shaft (15) is supported on bearings at both ends of the servo rotary motor; The rotary transformer is divided into a rotary transformer rotor (16) and a rotary transformer stator (17), the rotary transformer stator (17) is fixedly connected to the cover (14), and the rotary transformer rotor (16) is fixedly connected to the motor main shaft (15); the output end of the left motor main shaft is fixedly connected to the valve core (1), and the output end of the right motor main shaft is fixedly connected to the valve core sleeve (2); the valve core (1) is a cylindrical structure, and two mutually perpendicular ventilation grooves are respectively opened on the outer circumferential surface of the valve core (1), and two adjacent air outlet grooves on the outer circumferential surface in the axial direction are 90 degrees apart; the valve core sleeve (2) is a shell-drawn cylinder with an open left end face, and there are ventilation grooves on the outer circumferential surface of the valve core sleeve (2), the ventilation grooves are spaced 60 degrees in the circumferential direction, and the ventilation grooves are arranged in order from small to large, and the right end face of the valve core sleeve (2) has ventilation grooves with the same characteristics; The valve seat (3) is structured as two cylinders placed vertically, the right vertical air passage of the valve seat (3) is an air inlet passage, and the left vertical air passage is an air exhaust passage; the valve seat (3) has positions for placing a valve core (1), a valve core sleeve (2), a right bearing (4), a left bearing (5), a left end cover (6), a right end cover (7), a left mechanical seal ring (8), and a right mechanical seal ring (9) in the horizontal direction, and the longitudinal air inlet and outlet passages are vertically penetrated, and an arched groove for placing an oil injection nozzle is opened at the bottom of the valve seat.

2. A multi-directional adjustable rotary valve gas distribution device for an engine according to claim 1, characterized in that: The right motor rotates to drive the valve core sleeve (2) to rotate, and the size of the flow surface of the inlet and outlet ports is determined. The air enters the inlet pipe of the valve seat (3) through the intake manifold. The valve core (1) rotates under the drive of the left motor main shaft so that the inlet groove is connected with the pipe, so that the air passes through the rotary valve to reach the upper part of the piston and the cylinder; when exhaust gas is discharged, the exhaust gas enters the rotary valve from the upper part of the piston and the cylinder. The valve core (1) rotates under the drive of the left motor main shaft so that the exhaust groove is connected with the pipe, so that the exhaust gas passes through the rotary valve and enters the exhaust manifold, so that the exhaust gas is discharged; and the valve core sleeve (2) can adjust the size of the flow surface of the inlet and outlet ports in real time under the drive of the right motor rotation.

3. A bidirectional adjustable gas distribution method for an engine, characterized in that: A multi-directional adjustable rotary valve gas distribution device for an engine as claimed in claim 1 is adopted, wherein the left servo rotary motor is used as the power for the valve core (1) to rotate in the valve core sleeve (2); the rotary transformer monitors and accurately controls the rotation angle of the valve core (1) relative to the valve seat (3) in real time, and the right servo rotary motor is used as the power for the valve core sleeve (2) to rotate in the valve seat (3), and the rotary transformer monitors and accurately controls the rotation angle of the valve core sleeve (2) relative to the valve seat (3) in real time; when the engine is working, the connection and disconnection between the air outlet groove and the corresponding air inlet and outlet pipes are realized to supply and exhaust air in the cylinder according to the working sequence and adjust the air supply and exhaust volume; among the four air grooves on the outer circumferential surface of the valve core (1), the axially adjacent two air grooves differ by 90° in the circumferential direction, so that the servo rotary motor rotates one circle and the rotary valve completes one intake and exhaust, and the air outlet grooves on the outer circumferential surface of the valve core sleeve (2) are spaced 60° apart to adjust the intake and exhaust volume; the speed adjustment of the left servo rotary motor changes the adjustment of the supply and exhaust timing; The right servo rotary motor rotates to adjust the air supply and exhaust volume.

Images