Technology realization elements

Technical realization elements:

3. The technical problem to be solved by the present utility model is to provide a carbon canister solenoid valve with excellent sealing performance in view of the above-mentioned shortcomings of the prior art.

4. In order to achieve the above purpose, the present utility model provides the following technical solutions: a carbon canister solenoid valve with excellent sealing performance, including a valve body upper cover, a valve body base, and the upper end surface of the valve body upper cover is provided with an air inlet The outlet pipe connected to the manifold, the lower end surface of the valve body base is provided with an intake pipe communicating with the carbon canister, characterized in that: a partition is provided between the upper cover of the valve body and the valve body base, and the three are fixed by screws Connection, a flow cavity for fuel vapor to pass is formed between the upper cover of the valve body and the partition plate, the partition plate is provided with a connecting hole that leads to the inlet pipe and the flow cavity, and the outlet pipe is located on the inner wall of the upper cover of the valve body The port at the valve port is a valve port. The upper end surface of the partition plate is provided with a movable sealing cover assembly corresponding to the valve port. The lower end surface of the partition plate is embedded with an action component. In the control module, the output shaft of the motor is connected with the action assembly, and the movable sealing cover assembly is driven by the power assembly to close or open the valve port.

5. The utility model with the above features: fuel vapor enters from the air inlet, enters the flow cavity through the connecting hole, the motor drives the action assembly to work, and the action assembly drives the movable sealing cover assembly to move. If the movable sealing cover assembly completely blocks the valve port The fuel vapor cannot pass through. If the movable sealing cover assembly is completely far away from the valve port, the fuel vapor passing flow is the largest. The rotation angle of the motor can be adjusted as needed to achieve flow adjustment. On the lower end of the plate, the action component controls the movement of the movable sealing cover assembly through the partition plate, avoiding fuel vapor leakage and ensuring the sealing performance of the canister solenoid valve.

6. A further arrangement of the present utility model is that the movable sealing cover assembly includes a sealing base that is clamped with the first positioning post provided on the upper end surface of the partition, a sealing cover that is detachably connected to the sealing base, and a first magnetic sheet, so An installation groove for installing the first magnetic sheet is provided on the end surface of the sealing base abutting against the partition.

7. The present utility model with the above-mentioned features: the sealing base moves around the first positioning column under the drive of the action assembly, the first magnetic sheet is in close contact with the upper end surface of the partition, and the sealing cover is inserted into the sealing base.

8. A further arrangement of the present utility model is that the power assembly includes a rotating disk, a gear, and a second magnetic sheet, the rotating disk includes a mounting seat for installing the second magnetic sheet, an internal tooth track meshed with the gear, and the inner A cavity is formed between the tooth track and the mounting seat, the mounting seat is provided with a second positioning column inserted into the partition plate, and the second positioning column is coaxial with the first positioning column

set up.

9. The present utility model with the above-mentioned features: the rotating disk is driven by the motor to move around the second positioning column, the second magnetic sheet and the first magnetic sheet arranged in the mounting seat of the rotating disk are attracted to each other through the partition, and the second The magnetic sheet drives the first magnetic sheet to move along with the action of the rotating disc to realize the opening or closing of the valve port.

10. The further arrangement of the utility model is that: the valve body base is provided with a limit slot for gear installation and a limit wall arranged around the gear, and the bottom of the limit slot is provided with a passage through which the output shaft of the power supply machine passes. The motor output shaft is connected with the gear, the limit wall is erected in the empty slot of the rotating disc, and the valve body base is provided with an insertion hole for inserting with the second positioning post of the mounting seat.

11. The present utility model with the above-mentioned features: the setting of the limiting wall and the limiting groove restricts the movement of the gear, so that the gear can only maintain circular motion, the motor output shaft drives the gear to make circular motion, and the gear meshes with the internal tooth track to drive The rotating disk rotates around the second positioning column, and the insertion between the second positioning column and the valve body base effectively avoids the displacement of the rotating disk during the rotation.

12. A further arrangement of the present utility model is that: the valve port is provided with a first annular groove and a first sealing ring arranged in the first annular groove.

13. The present utility model with the above-mentioned features: the provision of the first sealing ring improves the sealing performance when the valve port is closed.

14. A further arrangement of the present utility model is that the end surface of the partition plate in contact with the upper cover of the valve body is provided with a second annular groove and a second sealing ring arranged in the second annular groove.

15. The present utility model with the above-mentioned characteristics: the second sealing ring can improve the sealing performance of the flow cavity and prevent the leakage of fuel vapor.

16. A further arrangement of the present utility model is that a filter screen is arranged in the connecting hole.

17. The present utility model with the above-mentioned characteristics: the fuel vapor in the carbon canister is filtered through the filter screen to remove particulate matter and impurities when passing through the connecting hole, so that the fuel vapor entering the cylinder is of higher quality and more fully burned.

18. A further arrangement of the present utility model is that the partition is provided with a limit post that limits the position of the sealing base.

19. The present utility model with the above-mentioned characteristics: the limit post is arranged on the movement track of the sealing base to limit the position of the sealing base and avoid excessive movement.

Please contact us at zhang@pride-cnc.com