[특허]Trim and reverse system for a watercraft jet propulsion system

BOMBARDIER RECREATIONAL PRODUCTS INC.

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특허 상세정보

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Trim and reverse system for a watercraft jet propulsion system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63H-011/11 B63H-011/113
출원번호	US-0902321 (2013-05-24)
등록번호	US-9376189 (2016-06-28)
발명자 / 주소	De Henau, Jean-Luc Quirion, Sebastien Bourret, Michel Gendron, Jean-Philippe
출원인 / 주소	BOMBARDIER RECREATIONAL PRODUCTS INC.
대리인 / 주소	BCF LLP
인용정보	피인용 횟수 : 1 인용 특허 : 39

초록
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A watercraft has a hull, a deck, an engine compartment, an engine disposed in the engine compartment, a steering assembly, a jet pump, a venturi connected to the jet pump, a variable trim system (VTS) support rotationally mounted relative to the venturi about a VTS axis, a steering nozzle rotationally mounted to the VTS support about a steering axis, and a gate rotationally mounted relative to the venturi about a gate axis. The gate is operatively connected to the VTS support such that rotation of the gate about the gate axis results in rotation of the VTS support about the VTS axis. An actuator is operatively connected to the gate to rotate the gate about the gate axis. The gate is operatively connected between the actuator and the VTS support. A jet propulsion system and a variable trim system and gate assembly are also disclosed.

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1. A watercraft comprising: a hull forming a tunnel;a deck disposed on the hull;an engine compartment defined between the hull and the deck;an engine disposed in the engine compartment;a steering assembly disposed at least in part on the deck;a jet pump connected to the hull, the jet pump being disposed in the tunnel, and the jet pump being operatively connected to the engine;a venturi connected to a rearward end of the jet pump and being disposed at least in part in the tunnel;a left side bracket connected to a left side of the venturi;a right side bracket connected to a right side of the venturi;a variable trim system (VTS) support rotationally mounted to the left and right side brackets about a VTS axis, the VTS axis extending generally laterally and horizontally;a steering nozzle rotationally mounted to the VTS support about a steering axis such that the steering nozzle rotates about the VTS axis with the VTS support, the steering axis being generally perpendicular to the VTS axis, the steering nozzle being operatively connected to the steering assembly and being disposed at least in part rearwardly of the venturi;a gate rotationally mounted to the left and right side brackets about a gate axis, the gate axis extending generally laterally and horizontally, the gate being operatively connected to the VTS support such that rotation of the gate about the gate axis results in rotation of the VTS support about the VTS axis; andan actuator operatively connected to the gate to rotate the gate about the gate axis, the gate being operatively connected between the actuator and the VTS support. 2. The watercraft of claim 1, further comprising: at least one follower extending from one of the VTS support and the gate; andat least one abutment surface disposed on an other one of the VTS support and the gate, the at least one follower abutting the at least one abutment surface through at least a range of rotation of the gate;wherein rotation of the gate about the gate axis results in a displacement of the at least one follower along the at least one abutment surface, and the displacement of the at least one follower along the at least one abutment surface results in rotation of the VTS support about the VTS axis. 3. The watercraft of claim 2, wherein the at least one abutment surface is disposed on the gate and the at least one follower is disposed on the VTS support. 4. The watercraft of claim 2, wherein the at least one abutment surface is at least one first abutment surface; the watercraft further comprising at least one second abutment surface disposed on the other one of the VTS support and the gate, the at least one second abutment surface extending from the at least one first abutment surface;wherein rotation of the gate about the gate axis through a first range of angles results in the displacement of the at least one follower along the at least one first abutment surface, and the displacement of the at least one follower along the at least one first abutment surface results in rotation of the VTS support about the VTS axis; andwherein rotation of the gate about the gate axis through a second range of angles results in a displacement of the at least one follower along the at least one second abutment surface, and the displacement of the at least one follower along the at least one second abutment surface maintaining the VTS support in position. 5. The watercraft of claim 4, wherein the displacement of the at least one follower along the at least one second abutment surface maintains the VTS support in a fully lowered position. 6. The watercraft of claim 4, wherein the at least one second abutment surface is an arcuate surface having the gate axis as a center of curvature. 7. The watercraft of claim 6, wherein the at least one first abutment surface is straight. 8. The watercraft of claim 1, wherein rotation of the gate between a first angle and a second angle causes a rotation of the VTS support about the VTS axis; wherein positions of the gate between the first and second angles are stowed positions;wherein the VTS support remains in a fixed position during rotation of the gate between the second angle and a third angle; andwherein positions of the gate between the second angle and the third angle are positions where the gate redirects a jet of water expelled from the steering nozzle when the engine is in operation. 9. The watercraft of claim 1, wherein the VTS support is a VTS ring encircling at least a portion of the steering nozzle; and wherein the steering nozzle is rotationally mounted to the VTS ring about the steering axis at a top and at a bottom of the VTS ring. 10. The watercraft of claim 1, wherein the gate axis is offset from the VTS axis. 11. The watercraft of claim 10, wherein the gate axis is vertically lower than the VTS axis. 12. The watercraft of claim 1, wherein: the left side bracket is disposed between the gate and the VTS support;the right side bracket is disposed between the gate and the VTS support; andthe VTS support is disposed between the left and right side brackets. 13. The watercraft of claim 1, wherein at least one of the left and right side brackets includes at least one stopper; and wherein the at least one stopper abuts at least one of the VTS support and the gate to limit rotation of the at least one of the VTS support and the gate in a least one direction. 14. The watercraft of claim 2, wherein the at least one abutment surface is at least one first abutment surface; the watercraft further comprising at least one second abutment surface disposed on the other one of the VTS support and the gate,wherein the at least one follower abuts the at least one first abutment surface when the gate rotates in a first direction and the at least one follower abuts the at least one second abutment surface when the gate rotates in a second direction opposite the first direction;wherein rotation of the gate about the gate axis in the first direction results in the displacement of the at least one follower along the at least one first abutment surface, and the displacement of the at least one follower along the at least one first abutment surface results in rotation of the VTS support about the VTS axis in the first direction; andwherein rotation of the gate about the gate axis in the second direction results in the displacement of the at least one follower along the at least one second abutment surface, and the displacement of the at least one follower along the at least one second abutment surface results in rotation of the VTS support about the VTS axis in the second direction. 15. The watercraft of claim 14, wherein the at least one first and second abutment surfaces define a channel; and wherein the at least one follower is received in the at least one channel. 16. The watercraft of claim 1, wherein the gate includes: a gate body having an inner surface and an outer surface; andat least one deflector connected to the outer surface of the gate body. 17. A variable trim system and gate assembly for a watercraft jet propulsion system comprising: a left side bracket adapted to be connected to a left side of a venturi of the jet propulsion system, the left side bracket defining a first aperture and a second aperture;a right side bracket adapted to be connected to a right side of the venturi, the right side bracket defining a first aperture and a second aperture;a variable trim system (VTS) support rotationally mounted to the left and right side brackets about a generally laterally and horizontally extending VTS axis, the VTS support being fastened to the left and right side brackets via the first apertures, the VTS support being adapted to rotationally mount a steering nozzle to the VTS support about a steering axis, the steering axis being generally perpendicular to the VTS axis; anda gate rotationally mounted to the left and right side brackets about a generally laterally and horizontally extending gate axis such that rotation of the gate about the gate axis results in rotation of the VTS support about the VTS axis, the gate being fastened to the left and right side brackets via the second apertures, the gate being adapted to be connected to an actuator such that the gate is operatively connected between the actuator and the VTS support. 18. The variable trim system and gate assembly of claim 17, further comprising the venturi; wherein the left side bracket is connected to the left side of the venturi; andwherein the right side bracket is connected to the right side of the venturi. 19. The variable trim system and gate assembly of claim 17, further comprising: at least one follower extending from one of the VTS support and the gate; andat least one abutment surface disposed on an other one of the VTS support and the gate, the at least one follower abutting the at least one abutment surface through at least a range of rotation of the gate;wherein rotation of the gate about the gate axis results in a displacement of the at least one follower along the at least one abutment surface, and the displacement of the at least one follower along the at least one abutment surface results in rotation of the VTS support about the VTS axis. 20. The variable trim system and gate assembly of claim 19, wherein the at least one abutment surface is disposed on the gate and the at least one follower is disposed on the VTS support. 21. The variable trim system and gate assembly of claim 19, wherein the at least one abutment surface is at least one first abutment surface; the variable trim system and gate assembly further comprising at least one second abutment surface disposed on the other one of the VTS support and the gate, the at least one second abutment surface extending from the at least one first abutment surface;wherein rotation of the gate about the gate axis through a first range of angles results in the displacement of the at least one follower along the at least one first abutment surface, and the displacement of the at least one follower along the at least one first abutment surface results in rotation of the VTS support about the VTS axis; andwherein rotation of the gate about the gate axis through a second range of angles results in a displacement of the at least one follower along the at least one second abutment surface, and the displacement of the at least one follower along the at least one second abutment surface maintaining the VTS support in position. 22. The variable trim system and gate assembly of claim 19, wherein the at least one abutment surface is at least one first abutment surface; the variable trim system and gate assembly further comprising at least one second abutment surface disposed on the other one of the VTS support and the gate,wherein the at least one follower abuts the at least one first abutment surface when the gate rotates in a first direction and the at least one follower abuts the at least one second abutment surface when the gate rotates in a second direction opposite the first direction;wherein rotation of the gate about the gate axis in the first direction results in the displacement of the at least one follower along the at least one first abutment surface, and the displacement of the at least one follower along the at least one first abutment surface results in rotation of the VTS support about the VTS axis in the first direction; andwherein rotation of the gate about the gate axis in the second direction results in the displacement of the at least one follower along the at least one second abutment surface, and the displacement of the at least one follower along the at least one second abutment surface results in rotation of the VTS support about the VTS axis in the second direction. 23. The variable trim system and gate assembly of claim 17, wherein the gate axis is offset from the VTS axis. 24. The variable trim system and gate assembly of claim 17, wherein rotation of the gate between a first angle and a second angle causes a rotation of the VTS support about the VTS axis; wherein positions of the gate between the first and second angles are stowed positions;wherein the VTS support remains in a fixed position during rotation of the gate between the second angle and a third angle; andwherein positions of the gate between the second angle and the third angle are positions where the gate redirects a jet of water expelled from the steering nozzle when the watercraft jet propulsion system is in operation. 25. The watercraft of claim 1, wherein the left side bracket defines a first aperture and a second aperture; wherein the right side bracket defines a first aperture and a second aperture;wherein the VTS support is fastened to the left and right side brackets via the first apertures; andwherein the gate is fastened to the left and right side brackets via the second apertures. 26. The watercraft of claim 1, wherein the VTS axis and the gate axis are fixed relative to the venturi.

이 특허에 인용된 특허 (39)

이 특허를 인용한 특허 피인용횟수: 1

Okamoto, Yukitaka; Kinoshita, Yoshimasa; Suzuki, Masaru. Jet propelled watercraft. USP2017019555867.

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Trim and reverse system for a watercraft jet propulsion system

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Trim and reverse system for a watercraft jet propulsion system

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