CN216950514U

CN216950514U - Valve cylinder deactivation mechanism

Info

Publication number: CN216950514U
Application number: CN202220804164.XU
Authority: CN
Inventors: 何佳鑫; 李昆明; 王浩东; 李高明
Original assignee: Shandong Forise Power Technology Co ltd
Current assignee: Shandong Forise Power Technology Co ltd
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-07-12
Anticipated expiration: 2032-04-08

Abstract

The utility model discloses a valve cylinder deactivation mechanism which comprises a rocker arm, an outer sliding sleeve, an inner sliding sleeve, a sliding block, an inner sliding sleeve spring, a valve and a valve bridge, wherein a locking bolt is connected to the rocker arm in a threaded manner, a rocker arm oil hole is formed in the rocker arm, a locking nut matched with the locking bolt is connected to the locking bolt in a threaded manner, the locking bolt is connected with the rocker arm and the inner sliding sleeve through the rocker arm oil hole, a locking bolt oil hole is formed in the locking nut, an inner core and an inner core spring seat are installed in the inner sliding sleeve, the inner core spring seat is provided with an inner core spring, the bottom of the inner core spring seat is provided with an inner core spring seat balance hole, and the inner sliding sleeve is connected with the outer sliding sleeve through the inner sliding sleeve spring. The utility model can realize the cylinder deactivation of the engine cylinder under the conditions of minimum modification and low cost increase, thereby achieving the effects of energy conservation and emission reduction.

Description

Valve cylinder deactivation mechanism

Technical Field

The utility model relates to the technical field of valve control, in particular to a valve cylinder deactivation mechanism.

Background

Compared with a single-cylinder internal combustion engine, the multi-cylinder internal combustion engine has wider application field. However, in recent years, as energy cost saving is increased, and energy saving and emission reduction policies and relevant regulations are vigorously promoted and implemented, the pressure of energy saving and emission reduction of the internal combustion engine is increased year by year, and further reduction of the energy consumption of the internal combustion engine becomes a social problem.

The method for gradually reducing the fuel consumption through technical innovation on the conventional internal combustion engine also becomes a feasible method, and the development of the cylinder deactivation technology of the internal combustion engine becomes one of effective measures for energy conservation and emission reduction. Cylinder deactivation techniques reduce or improve fuel consumption and emissions by deactivating one or a subset of the engine's cylinders during mid-low engine load conditions.

The cylinder deactivation technology has higher requirements on the modification and manufacture of the engine, and the cylinder deactivation of the engine is realized under the conditions of minimum change and lower cost increase so as to achieve the effects of energy conservation and emission reduction.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a valve cylinder deactivation mechanism.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a valve cylinder deactivation mechanism, includes rocking arm, outer sliding sleeve, inner sliding sleeve, slider, inner sliding sleeve spring, valve and valve bridge, threaded connection has locking bolt on the rocking arm, just the rocking arm oilhole has been seted up on the rocking arm, threaded connection has rather than matched with lock nut on the locking bolt, just locking bolt passes through the rocking arm oilhole and links with rocking arm and inner sliding sleeve, the locking bolt oilhole has been seted up on the lock nut, install inner core and inner core spring holder in the inner sliding sleeve, install inner core spring on the inner core spring holder, inner core spring holder balancing hole has been seted up to its bottom, inner sliding sleeve and outer sliding sleeve pass through the coupling of inner sliding sleeve spring.

Preferably, an outer sliding sleeve bottom through hole is formed in the contact surface between the bottom of the outer sliding sleeve and the valve bridge, and an outer sliding sleeve bottom side through hole is formed in the side face of the bottom of the outer sliding sleeve.

Preferably, the outer sliding sleeve is provided with an outer ring groove.

Preferably, the outer ring groove is arranged in an inclined manner, the bottom end face of the sliding block is arranged in an inclined manner, and the inclination angle of the outer ring groove is larger than that of the bottom end face of the sliding block.

Preferably, an inner ring groove is formed in the sliding block.

Preferably, the bottom of the inner sliding sleeve is provided with an inner sliding sleeve through hole.

Preferably, an inner sliding sleeve oil storage tank and an oil hole are formed in the inner sliding sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

after the structure is adopted, the cylinder deactivation work of the engine cylinder can be realized, and the method specifically comprises the following steps: when the cylinder is not stopped, the electromagnetic valve is disconnected, an oil way in the mechanism is also disconnected, oil in the oil storage groove and the oil hole of the inner sliding sleeve has no pressure, an inner core of the mechanism moves to the position limited by the inner sleeve under the action of the inner core spring, and at the moment, the sliding block is connected with the inner sliding sleeve and the outer sliding sleeve, and the inner sliding sleeve and the outer sliding sleeve move together; when the cylinder is stopped, the electromagnetic valve is opened, the oil circuit in the mechanism is also communicated, the oil storage tank of the inner sliding sleeve and the oil hole are filled with oil with certain pressure, the inner core of the mechanism moves to the position limiting position of the inner core spring seat under the action of the pressure oil, at the moment, the sliding block is connected with the inner sliding sleeve and the inner core, the sliding block is separated from the outer sliding sleeve, and the inner sliding sleeve and the inner core move together.

Drawings

FIG. 1 is a schematic view of the cylinder deactivation mechanism composition and normal operation (non-cylinder deactivation operation);

FIG. 2 is a schematic diagram of cylinder deactivation mechanism components and cylinder deactivation operating states;

FIG. 3 is a schematic diagram showing the relative positions of the slide block and the inner core in the normal operation (non-cylinder deactivation operation) state of the cylinder deactivation mechanism;

FIG. 4 is a schematic diagram showing the relative positions of the sliding block and the inner core in the cylinder deactivation working state of the cylinder deactivation mechanism;

FIG. 5 is a schematic view of the contact between the sliding block and the outer sliding sleeve in the normal operation (non-cylinder deactivation operation) state of the cylinder deactivation mechanism;

FIG. 6 is a schematic view of the contact between the sliding block and the inner sliding sleeve in the normal operation (non-cylinder deactivation operation) state of the cylinder deactivation mechanism;

FIG. 7 is a schematic view of the contact condition between the sliding block and the inner core in the cylinder deactivation working state of the cylinder deactivation mechanism;

FIG. 8 is a schematic view of the contact condition between the sliding block and the inner sliding sleeve in the cylinder deactivation working state of the cylinder deactivation mechanism.

Reference numbers in the figures: 1. a rocker arm; 2. locking the bolt; 3. locking the nut; 4. an inner sliding sleeve; 5. an inner core; 6. a slider; 7. an outer sliding sleeve; 8. an inner sliding sleeve spring; 9. a valve bridge; 10. an air valve; 11. an inner core spring seat; 12. an inner core spring; 13. a locking bolt oil hole; 14. the inner sliding sleeve oil storage tank and the oil hole; 15. an inner ring groove; 16. an outer ring groove; 17. an inner sliding sleeve through hole; 18. an inner core spring seat balance hole; 19. a through hole is formed in the bottom of the outer sliding sleeve; 20. a through hole is formed in the side face of the bottom of the outer sliding sleeve; 21. the rocker arm oilhole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: a valve cylinder stopping mechanism comprises a rocker arm 1, an inner sliding sleeve 4, a sliding block 6, an outer sliding sleeve 7, an inner sliding sleeve spring 8, a valve bridge 9 and a valve 10, wherein a locking bolt 2 is connected to the rocker arm 1 in a threaded manner, a rocker arm oil hole 21 is formed in the rocker arm 1, a locking nut 3 matched with the locking bolt 2 is connected to the locking bolt 2 in a threaded manner, the locking bolt 2 is connected with the rocker arm 1 and the inner sliding sleeve 4 through the rocker arm oil hole 21, the locking bolt 2 is in contact with the inner sliding sleeve 4 through a spherical surface, the spherical surface can play a role in sealing, meanwhile, the relative position of the locking bolt 2 and the inner sliding sleeve 4 can be changed, so that the function of transmission force is achieved, a locking bolt oil hole 13 is formed in the locking nut 3, lubricating oil with a certain pressure can be provided for the mechanism through the locking bolt oil hole 13, meanwhile, required lubricating oil can also be provided for the connection of the spherical surface, an inner core 5 and an inner core spring seat 11 are installed in the inner sliding sleeve 4, install inner core spring 12 on the inner core spring holder 11, inner core spring holder balancing hole 18 has been seted up to its bottom, inner sliding sleeve 4 couples through inner sliding sleeve spring 8 with outer sliding sleeve 7, outer sliding sleeve bottom through-hole 19 has been seted up with the contact surface of valve bridge 9 to the bottom of outer sliding sleeve 7, and outer sliding sleeve bottom side through-hole 20 has been seted up to the bottom side of outer sliding sleeve 7, can play the effect of ventilating and logical oil through outer sliding sleeve bottom through-hole 19 and outer sliding sleeve bottom side through-hole 20, outer annular groove 16 has been seted up on the outer sliding sleeve 7, outer annular groove 16 sets up for the slope, the bottom terminal surface of slider 6 sets up for the slope, the inclination of outer annular groove 16 is greater than the inclination of slider 6 bottom terminal surface, inner ring groove 15 has been seted up on slider 6, inner sliding sleeve through-hole 17 has been seted up to the bottom of inner sliding sleeve 4, and inner sliding sleeve oil storage tank and oilhole 14 have been seted up on inner sliding sleeve 4.

The working principle is as follows:

non-cylinder deactivation working mode: the electromagnetic valve is disconnected, the rocker arm 1 is disconnected from the rocker arm oil hole 21 of the cylinder deactivation mechanism, the oil pressure in the oil storage groove of the inner sliding sleeve and the oil hole 14 is relieved, namely, no external force is applied to the top of the inner core 5, at the moment, the inner core 5 moves to the limit position of the inner sliding sleeve 4 under the action of the inner core spring 12, and meanwhile, the sliding block 6 is driven to move towards the direction of the outer ring groove 16 until the sliding block 6 is completely separated from the inner ring groove 15 of the inner core 5, at the moment, the sliding block 6 is completely positioned in the inner sliding sleeve 4 and the outer sliding sleeve 7, so that the inner sliding sleeve 4 and the outer sliding sleeve 7 move together, the movement of the valve bridge 9 is pushed, and the normal work of the engine is met;

the cylinder deactivation working mode comprises the following steps: the electromagnetic valve is electrified and opened, the rocker arm 1 is opened to a rocker arm oil hole 21 of the cylinder deactivation mechanism, oil with certain pressure is filled in an inner sliding sleeve oil storage groove and an oil hole 14 through a locking bolt oil hole 13, the top of the inner core 5 is acted by pressure oil, at the moment, the inner core 5 overcomes the spring force of the inner core spring 12 under the action of pressure oil in the inner sliding sleeve oil storage groove and the oil hole 14 and moves to the limit position of the inner core spring seat 11, meanwhile, the sliding block 6 moves towards the direction of an outer ring groove 16 of the inner core 5 under the driving of the lower plane of the outer sliding sleeve 7 until the sliding block 6 is completely separated from the outer sliding sleeve 7, at the moment, the sliding block 6 is completely positioned in the inner ring grooves 15 of the inner sliding sleeve 4 and the inner core 5 to realize the synchronous movement of the inner sliding sleeve 4 and the inner core 5, at the moment, the locking bolt 2, the inner sliding sleeve 4 and the inner core 5 synchronously move under the driving of the rocker arm 1 to drive the inner sliding sleeve spring 8, the outer sliding sleeve 7 to be static, so that the movement of the valve bridge 9 can not be pushed, and then cylinder deactivation is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a valve cylinder deactivation mechanism, includes rocking arm (1), inner sliding sleeve (4), slider (6), outer sliding sleeve (7), inner sliding sleeve spring (8), valve bridge (9) and valve (10), its characterized in that: threaded connection has locking bolt (2) on rocking arm (1), just rocking arm oilhole (21) have been seted up on rocking arm (1), threaded connection has lock nut (3) rather than matched with on locking bolt (2), just locking bolt (2) are linked through rocking arm oilhole (21) and rocking arm (1) and inner sliding sleeve (4), lock bolt oilhole (13) have been seted up on lock nut (3), install inner core (5) and inner core spring holder (11) in inner sliding sleeve (4), install inner core spring (12) on inner core spring holder (11), inner core spring holder balancing hole (18) have been seted up to its bottom, inner sliding sleeve (4) and outer sliding sleeve (7) are linked through inner sliding sleeve spring (8).

2. A valve deactivation mechanism according to claim 1, characterized in that: an outer sliding sleeve bottom through hole (19) is formed in the contact surface between the bottom of the outer sliding sleeve (7) and the valve bridge (9), and an outer sliding sleeve bottom side through hole (20) is formed in the side face of the bottom of the outer sliding sleeve (7).

3. A valve deactivation mechanism according to claim 1, characterized in that: an outer ring groove (16) is arranged on the outer sliding sleeve (7).

4. A valve deactivation mechanism according to claim 3, characterized in that: the outer ring groove (16) is arranged in an inclined mode, the bottom end face of the sliding block (6) is arranged in an inclined mode, and the inclined angle of the outer ring groove (16) is larger than that of the bottom end face of the sliding block (6).

5. A valve deactivation mechanism according to claim 1, characterized in that: an inner ring groove (15) is arranged on the sliding block (6).

6. A valve deactivation mechanism according to claim 1, characterized in that: an inner sliding sleeve through hole (17) is formed in the bottom of the inner sliding sleeve (4).

7. A valve deactivation mechanism according to claim 1, characterized in that: an inner sliding sleeve oil storage tank and an oil hole (14) are formed in the inner sliding sleeve (4).