Claims
- 1. A fuel vapor purge control assembly comprising:
an intake passage; a vapor purge passage in fluid communication with the intake passage a port between and in fluid communication with the intake passage and the vapor purge passage; a closing member movably mounted in the intake passage and having:
a first position where the closing member closes the port and blocks fluid communication between the intake passage and the vapor purge passage and is outside of a fluid stream of the intake passage when fluid is flowing through the intake passage; a second position where the closing member opens the port and allows fluid communication between the intake passage and the vapor purge passage and extends into the fluid stream of the intake passage when fluid is flowing through the intake passage; and an actuator assembly received in the receptacle and connected to the closing member to drive the closing member between the first and second positions.
- 2. The fuel vapor purge control assembly according to claim 1, wherein the closing member further comprising:
a door; and a hinge portion rotatably mounted in the intake passage and connected to the door, and the actuator receptacle being located in the hinge portion.
- 3. The fuel vapor purge control assembly according to claim 2, wherein the actuator assembly further comprising:
a servo assembly drivingly coupled to the door; a servo controller electrically connected to the servo assembly and actuating the servo assembly to move the door from the first position to the second position.
- 4. The fuel vapor purge control assembly according to claim 3, wherein the actuator assembly further comprising a servo housing containing the servo assembly and including an outer support surface rotationally supporting an inner surface of the actuator receptacle.
- 5. The fuel vapor purge control assembly according to claim 4, wherein the servo housing being mounted on the servo controller.
- 6. The fuel vapor purge control assembly according to claim 5, wherein the servo assembly further comprising:
an electric motor electrically connected to the servo controller; and a gear transmission coupled to the electric motor and to the hinge portion.
- 7. The fuel vapor purge control assembly according to claim 3, further comprising:
a mounting plate connected to the intake passage, the servo assembly being connected to the mounted plate; and a cover plate connected to the intake passage and extending over the mounting plate.
- 8. The fuel vapor purge control assembly according to claim 7, further comprising:
an electrical receptacle extending from the cover plate; and electrical terminals extending in the electrical receptacle and being electrically connected to the servo controller.
- 9. The fuel vapor purge control assembly according to claim 3, wherein the servo assembly being located in the fluid stream.
- 10. The fuel vapor purge control assembly according to claim 9, further comprising a first seal engaging the actuator assembly and the hinge portion such that the actuator assembly is sealed from fluid flowing in the intake passage.
- 11. The fuel vapor purge control assembly according to claim 10, further comprising:
a projection extending from the second end of the hinge portion; a position sensor connected to and driven by the projection when the closing member moves between the first and second positions.
- 12. The fuel vapor purge control assembly according to claim 11, wherein the hinge portion comprising first and second ends and an outer surface extending from the first end to the second end;
the outer surface defining a first shoulder at the first end and a second shoulder at the second end; and the first and second seals engaging the first and second shoulders, respectively.
- 13. The fuel vapor purge control assembly according to claim 12, further comprising a second seal engaging the actuator assembly and the hinge portion adjacent the projection such that the actuator assembly is sealed from fluid flowing in the intake passage.
- 14. A method of assembling a fuel vapor purge control assembly, the vapor purge control assembly including a flow control body, the flow control body including a manifold conduit in fluid communication with an inlet conduit; the method comprising:
providing a closing member having an actuator receptacle therein; inserting an actuator assembly into the actuator receptacle; and mounting the closing member inside the manifold conduit at a location adjacent the inlet conduit such that the closing member is pivotable by the actuator assembly between a first position where the closing member blocks fluid communication between the manifold conduit and the inlet conduit, and a second position where the closing member opens fluid communication between the manifold conduit and the inlet conduit.
- 15. The method according to claim 14, further comprising:
before mounting the closing member, connecting the actuator assembly to a mounting plate; and placing a cover over the actuator assembly and the mounting plate.
- 16. The method according to claim 15, wherein the mounting the closing member further comprising, in sequence:
connecting the actuator assembly to the mounting member; inserting the mounting member and the actuator assembly into the manifold conduit; and securing the mounting member to the manifold conduit.
- 17. The method according to claim 16, further comprising:
providing the flow control body with first and second open ends; the manifold conduit extending between the first and second ends; providing the closing member with a door, a hinge portion connected to the door, and a projection extending from one end of the hinge portions, the hinge portion includes first and second shoulders and the actuator receptacle; providing the actuator assembly with a servo housing mounted in the actuator receptacle such that the hinge portion is rotatable about the servo housing; a motor mounted in the servo housing; a gear train mounted in the servo housing and connected to the motor and the hinge portion; a servo controller connected to the servo housing and the mounting plate and electrically connected to the motor; a position sensor connected to the projection and to the manifold conduit and electrically connected to the servo controller; providing the flow control body with a first seal engaging the first shoulder and the mounting plate and a second seal engaging the second shoulder and the manifold conduit.
- 18. A method of controlling a fuel vapor purge system, the fuel vapor purge system including a flow control body having a manifold conduit in fluid communication with an inlet conduit, a closing member pivotally mounted in the manifold conduit to selectively open and close the fluid communication, and an actuator assembly connected to the closing member to pivot the closing member, the method comprising:
cooling the actuator assembly with fluid flowing through the manifold conduit.
Parent Case Info
[0001] This application claims priority of copending U.S. Provisional Application No. 60/434,369 filed on Dec. 18, 2002 which is hereby incorporated by reference.
Provisional Applications (1)
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Number |
Date |
Country |
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60434369 |
Dec 2002 |
US |