[특허]Hydrostatic transmission

Hydro Gear Limited Partnership

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Hydrostatic transmission

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16H-039/08 F16H-039/00 B60K-017/10
미국특허분류(USC)	060/487; 060/494
출원번호	US-0774307 (2007-07-06)
등록번호	US-7454907 (2008-11-25)
발명자 / 주소	Hauser,Raymond Schreier,John D.
출원인 / 주소	Hydro Gear Limited Partnership
대리인 / 주소	Neal, Gerber & Eisenberg LLP
인용정보	피인용 횟수 : 5 인용 특허 : 115

초록
▼

An axle driving apparatus including a hydrostatic transmission disposed in a housing, with at least one axle extending from a side of the housing and an input shaft extending into the housing to drive the hydrostatic transmission, an output shaft engaged to and driven by the hydrostatic transmission and having one end external to the housing, a brake mechanism engaged to the external end of the output shaft, a trunnion engaged to the hydrostatic transmission and having one end extending from the housing, and a bypass actuator engaged to the hydrostatic transmission and having one end extending from the housing, wherein each of the axle, output shaft, trunnion, and bypass actuator are oriented generally perpendicular to the input shaft, and each of the output shaft, trunnion and bypass actuator extend from the same side of the housing.

대표
청구항
▼

We claim: 1. An axle driving apparatus comprising: a housing having a hydrostatic transmission disposed therein, the housing comprising a first housing part and a second housing part joined together along an interface; an input shaft extending into the first housing part and engaged to the hydrostatic transmission, wherein the input shaft is oriented generally parallel to the interface; at least one axle shaft driven by the hydrostatic transmission and extending from one of the first housing part and the second housing part; an output shaft driven by the hydrostatic transmission and having a first end and a second end, the first end extending from the second housing part, and a brake mechanism engaged to the first end of the output shaft for braking the hydrostatic transmission; a trunnion engaged to the hydrostatic transmission for controlling the output thereof, wherein one end of the trunnion extends from the second housing part; and a bypass actuator engaged to the hydrostatic transmission for placing the hydrostatic transmission into a bypass mode, wherein one end of the bypass actuator extends from the second housing part. 2. The axle driving apparatus of claim 1, wherein the output shaft, trunnion and bypass actuator are oriented generally perpendicular to the input shaft. 3. The axle driving apparatus of claim 2, wherein the output shaft, trunnion and bypass actuator are parallel to the at least one axle shaft. 4. The axle driving apparatus of claim 3, further comprising a control arm operatively engaged to the one end of the trunnion, a bypass arm operatively engaged to the one end of the bypass actuator, and a return arm positioned on the second housing part to bias the control arm in a position that equates to a neutral condition for the axle driving apparatus, and wherein the brake mechanism further comprises a brake arm disposed on the second housing part. 5. The axle driving apparatus of claim 1, wherein the at least one axle shaft comprises two axle shafts oriented generally collinearly, wherein one of the axle shafts extends from the first housing part and the other axle shaft extends from the second housing part. 6. The axle driving apparatus of claim 5, further comprising a control arm operatively engaged to the one end of the trunnion, a bypass arm operatively engaged to the one end of the bypass actuator, and a return arm positioned on the second housing part to bias the control arm in a position that equates to a neutral condition for the axle driving apparatus, and wherein the brake mechanism further comprises a brake arm disposed on the second housing part. 7. The axle driving apparatus of claim 6, wherein the output shaft, trunnion and bypass actuator are parallel to the two axle shafts. 8. An axle driving apparatus comprising: a housing having a hydrostatic transmission disposed therein, the housing comprising a first housing part and a second housing part joined together along an interface; an input shaft extending into the first housing part and engaged to the hydrostatic transmission; at least one axle shaft driven by the hydrostatic transmission and extending from the housing, wherein the at least one axle shaft is generally perpendicular to the input shaft; a output shaft engaged to and driven by the hydrostatic transmission and having a first end and a second end, the first end extending from the second housing part, and a brake mechanism engaged to the first end of the output shaft for braking the hydrostatic transmission; a trunnion having a first end engaged to the hydrostatic transmission and a second end extending from the housing; and a bypass actuator engaged to the hydrostatic transmission for placing the hydrostatic transmission into a bypass mode, and one end of the bypass actuator extends from the housing, wherein the output shaft, trunnion, and bypass actuator are oriented generally perpendicular to the input shaft and extend from the same side of the housing as the at least one axle shaft. 9. The axle driving apparatus of claim 8, wherein the hydrostatic transmission further comprises a hydraulic motor disposed in the housing, and the output shaft is engaged to and driven by the hydraulic motor. 10. The axle driving apparatus of claim 8, further comprising a control arm operatively engaged to the second end of the trunnion, a bypass arm operatively engaged to the one end of the bypass actuator, and a return arm positioned on the second housing part to bias the control arm in a position that equates to a neutral condition for the axle driving apparatus, and wherein the brake mechanism further comprises a brake arm disposed on the second housing part. 11. An axle driving apparatus comprising: a housing having a first side and a second side generally opposite the first side; a hydrostatic transmission disposed in the housing and comprising a hydraulic pump and a swash plate; an input shaft extending into the housing and engaged to and driving the hydraulic pump; at least one axle shaft driven by the hydrostatic transmission and extending from only one of the first housing side and the second housing side, wherein the at least one axle shaft is generally perpendicular to the input shaft; an output shaft driven by the hydrostatic transmission and having a first end and a second end, the first end extending from the first housing side; a brake mechanism disposed external to the housing and engaged to the first end of the output shaft for braking the hydrostatic transmission; a trunnion engaged to the swash plate for controlling the output of the hydrostatic transmission, wherein one end of the trunnion extends from the first housing side; and a bypass actuator engaged to the hydrostatic transmission for placing the hydrostatic transmission into a bypass mode, wherein one end of the bypass actuator extends from the first housing side. 12. The axle driving apparatus of claim 11, wherein the at least one axle shaft extends from only the first housing side. 13. The axle driving apparatus of claim 11, wherein the at least one axle shaft extends from only the second housing side. 14. The axle driving apparatus of claim 11, wherein the at least one axle comprises two axle shafts, wherein one axle shaft extends from the first housing side and the other axle shaft extends from the second housing side. 15. The axle driving apparatus of claim 14, further comprising a control arm disposed external to the housing adjacent the second housing side and operatively engaged to the one end of the trunnion, a bypass arm disposed external to the housing adjacent the second housing side and operatively engaged to the one end of the bypass actuator, and a return arm positioned on the second housing side to bias the control arm in a position that equates to a neutral condition for the axle driving apparatus, and wherein the brake mechanism further comprises a brake arm disposed on the second housing side. 16. The axle driving apparatus of claim 11, wherein the hydrostatic transmission further comprises a hydraulic motor disposed in the housing, and the output shaft is engaged to and driven by the hydraulic motor. 17. The axle driving apparatus of claim 16, wherein the housing comprises a first housing part and a second housing part joined together along an interface, and the interface is generally parallel to the longitudinal axis of the input shaft, and the output shaft, trunnion and bypass actuator are oriented generally perpendicular to the input shaft. 18. An axle driving apparatus comprising: a housing having a hydrostatic transmission disposed therein, the housing comprising a first housing part and a second housing part joined together along an interface; an input shaft extending into the first housing part and engaged to the hydrostatic transmission; at least one axle shaft driven by the hydrostatic transmission and extending from the housing, wherein the at least one axle shaft is generally perpendicular to the input shaft; a output shaft engaged to and driven by the hydrostatic transmission and having a first end and a second end, the first end extending from the second housing part, and a brake mechanism engaged to the first end of the output shaft for braking the hydrostatic transmission; a trunnion having a first end engaged to the hydrostatic transmission and a second end extending from the housing; and a bypass actuator engaged to the hydrostatic transmission for placing the hydrostatic transmission into a bypass mode, and one end of the bypass actuator extends from the housing, wherein the output shaft, trunnion, and bypass actuator are oriented generally perpendicular to the input shaft and extend from the opposite side of the housing as the at least one axle shaft. 19. An axle driving apparatus comprising: a housing having a hydrostatic transmission disposed therein, the housing comprising a first housing part and a second housing part joined together along an interface; an input shaft extending into the first housing part and engaged to the hydrostatic transmission; at least two axle shafts driven by the hydrostatic transmission and extending generally perpendicular to the input shaft, one of the axle shafts extending from the first housing part and the other axle shaft extending from the second housing part; a output shaft engaged to and driven by the hydrostatic transmission and having a first end and a second end, the first end extending from the second housing part, and a brake mechanism engaged to the first end of the output shaft for braking the hydrostatic transmission; a trunnion having a first end engaged to the hydrostatic transmission and a second end extending from the housing; and a bypass actuator engaged to the hydrostatic transmission for placing the hydrostatic transmission into a bypass mode, and one end of the bypass actuator extends from the housing, wherein the output shaft, trunnion, and bypass actuator are oriented generally perpendicular to the input shaft and parallel to the two axle shafts. 20. The axle driving apparatus of claim 19, further comprising a control arm operatively engaged to the second end of the trunnion, a bypass arm operatively engaged to the one end of the bypass actuator, and a return arm positioned on the second housing part to bias the control arm in a position that equates to a neutral condition for the axle driving apparatus, and wherein the brake mechanism further comprises a brake arm disposed on the second housing part.

이 특허에 인용된 특허 (115)

이 특허를 인용한 특허 피인용횟수: 5

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Hydrostatic transmission

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이 특허에 인용된 특허 (115)

이 특허를 인용한 특허 피인용횟수: 5

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Hydrostatic transmission

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이 특허에 인용된 특허 (115)

이 특허를 인용한 특허 피인용횟수: 5

IPC 상위 출원인

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