[특허]Actuator for a gate of a watercraft jet propulsion system

BOMBARDIER RECREATIONAL PRODUCTS INC.

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특허 상세정보

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Actuator for a gate of a watercraft jet propulsion system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63H-011/00 B63H-001/30 B63H-005/00
출원번호	US-0473335 (2014-08-29)
등록번호	US-9248895 (2016-02-02)
발명자 / 주소	Gendron, Jean-Philippe Quirion, Sebastien
출원인 / 주소	BOMBARDIER RECREATIONAL PRODUCTS INC.
대리인 / 주소	BCF LLP
인용정보	피인용 횟수 : 2 인용 특허 : 14

초록
▼

A watercraft has a hull, an engine compartment, an engine disposed and a jet pump. A gate is pivotable relative to the jet pump about a gate axis between an up and a down position. A gate actuator assembly includes an actuator housing fixed to the hull, and an actuator arm movable along an actuation axis with respect thereto. The actuator arm is operatively connected to the gate for pivoting the gate about the gate axis. A sealing member encloses a portion of the actuator arm between the actuator housing and the gate. The sealing member extends between a first end fixed with respect to the actuator housing and a second end fixed with respect to the actuator arm, forming a variable volume outer chamber to prevent entry of fluid therein. A passage fluidly communicating with the outer chamber, extends through the hull into the engine compartment.

대표
청구항
▼

1. A watercraft comprising: a hull;an engine compartment defined at least in part by the hull;an engine disposed in the engine compartment; anda jet pump connected to the hull and operatively connected to the engine, the jet pump creating a fluid jet and thereby propelling the watercraft;a gate being pivotable relative to the jet pump about a gate axis between an up position and a down position to redirect the fluid jet when in the down position; anda gate actuator assembly comprising: an actuator housing fixed to the hull;an actuator arm being movable along an actuation axis with respect to the actuator housing, the actuator arm being operatively connected to the gate for pivoting the gate about the gate axis;a sealing member enclosing a portion of the actuator arm between the actuator housing and the gate, the sealing member extending between a first end and a second end, the first end being fixed with respect to the actuator housing, the second end being fixed with respect to the actuator arm, the sealing member forming a variable volume outer chamber between the first and second ends and around the portion of the actuator arm, the sealing member preventing entry of fluid from outside the engine compartment into the outer chamber; anda passage in fluid communication with the outer chamber and extending through the hull into the engine compartment. 2. The watercraft of claim 1, wherein the sealing member is a bellows. 3. The watercraft of claim 1, wherein the passage is in fluid communication with the engine compartment. 4. The watercraft of claim 1, further comprising an inner member forming an inner chamber disposed in the engine compartment, the passage fluidly communicating the outer chamber with the inner chamber. 5. The watercraft of claim 4, wherein the inner chamber is a variable volume chamber. 6. The watercraft of claim 1, wherein the actuator housing is mounted within the engine compartment and the actuator arm extends through an opening in the hull. 7. The watercraft of claim 6, wherein a portion of the actuator housing extends through the opening of the hull around the actuator arm. 8. The watercraft of claim 7, wherein the passage is defined at least in part between the portion of the actuator housing and the actuator arm. 9. The watercraft of claim 7, wherein the sealing member is an outer bellows, a first end of the outer bellows being fixed to the portion of the actuator housing and a second end of the outer bellows being fixed to the actuator arm. 10. The watercraft of claim 7, wherein the portion of the actuator housing comprises: an inner flange disposed adjacent to an inner surface of the hull;a sleeve extending from the inner flange through the opening of the hull and around the actuator arm, one of an outer and an inner surface of the sleeve being threaded; andan outer flange being threadedly fastened to the sleeve so as to retain the hull between the inner flange and the outer flange. 11. The watercraft of claim 1, wherein the actuator arm comprises: a shaft at least partially enclosed by the actuator housing and movable with respect to the actuator housing along the actuation axis; anda linkage pivotably connected to the shaft, the linkage being connected to the gate and being pivotable about a pivot axis disposed generally perpendicular to the actuation axis and parallel to the gate axis when the gate pivots about the gate axis. 12. The watercraft of claim 11, wherein the linkage is disposed along the actuation axis when the gate is in at least one of the up position and the down position. 13. The watercraft of claim 12, wherein: the linkage is disposed along the actuation axis when the gate is in the up position;the linkage is disposed along the actuation axis when the gate is in the down position; andthe linkage is disposed at a non-zero angle with respect to actuation axis when the gate is in a position between the up position and the down position. 14. A gate actuator assembly for pivoting a gate of a watercraft having a jet propulsion system and a hull, the hull defining at least in part an engine compartment, the gate actuator assembly comprising: an actuator housing adapted to be connected to the hull;an actuator arm being movable along an actuation axis with respect to the actuator housing and being adapted to be operatively connected to the gate for pivoting the gate; anda sealing member enclosing a portion of the actuator arm outside the actuator housing, the sealing member extending between a first end and a second end, the first end being fixed with respect to the actuator housing, the second end being fixed with respect to the actuator arm, the sealing member forming a variable volume outer chamber between the first and second ends and around the portion of the actuator arm, the sealing member being adapted to prevent entry into the outer chamber of fluid outside from outside the outer chamber, the sealing member being adapted for fluid communication with a passage extending through the hull into the engine compartment. 15. The gate actuator assembly of claim 14, wherein the actuator housing is adapted to be mounted inside the engine compartment, the actuator arm being adapted to extend through an opening of the hull, a portion of the actuator housing being adapted to extend through the opening of the hull around the actuator arm. 16. The gate actuator assembly of claim 14, wherein the sealing member is a bellows. 17. The gate actuator assembly of claim 14, further comprising an inner member defining an inner chamber, the inner member being adapted to be disposed inside the engine compartment, the passage fluidly communicating the outer chamber with the inner chamber. 18. The gate actuator assembly of claim 17, wherein the inner chamber is a variable volume chamber. 19. The gate actuator assembly of claim 18, wherein the inner member is a bellows. 20. The gate actuator assembly of claim 14, wherein the actuator arm comprises: a shaft at least partially enclosed by the actuator housing and movable with respect to the actuator housing along the actuation axis; anda linkage pivotably connected to the shaft, the linkage being adapted to be connected to the gate and being pivotable about a pivot axis disposed generally perpendicular to the actuation axis for pivoting the gate about a gate axis.

이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 2

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특허 상세정보

Actuator for a gate of a watercraft jet propulsion system

초록
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청구항
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이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 2

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특허 상세정보

Actuator for a gate of a watercraft jet propulsion system

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (14)

이 특허를 인용한 특허 피인용횟수: 2

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

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