[특허]Hydrostatic transaxle assembly and improved coupling arrangement therefor

Hydrostatic transaxle assembly and improved coupling arrangement therefor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16H-057/02
출원번호	US-0980136 (1992-11-23)
발명자 / 주소	Szulczewski Dennis E. (Eden Prairie MN)
출원인 / 주소	Eaton Corporation (Cleveland OH 02)
인용정보	피인용 횟수 : 82 인용 특허 : 0

초록 ▼

A hydrostatic transaxle is disclosed of the type including a hydrostatic transmission (11;221), a differential gear means (19;243), and first (21;213) and second (23;215) axle shafts. The hydrostatic transmission includes a transmission case (34;229,231) having a second case portion (31;231) including an output hub portion (97;235). The transaxle includes axle housing casing halves 133,135:209,211) joined together on a plane containing the axis of rotation of the axle shafts, and including an output portion (163,165;209,211) in tight engagement about the output hub portion. Another portion (173;229,231,249) of the transmission case cooperates with one of the axle casing halves to define a secondary mounting means and a torque reaction means which, together with the output hub portion, comprise the only portions of the transmission case operatively associated with the axle housing (131;208). The disclosed mounting or coupling of the hydrostatic transmission and the axle housing makes it possible to integrate the hydrostatic transmission and gear axle assembly, while at the same time segregating the hydraulic fluid of the hydrostatic transmission from the lubricant of the gear axle assembly, but still simplifying the overall structure of the assembly.

대표청구항 ▼

A hydrostatic transaxle of the type including a hydrostatic transmission having an input means, a hydrostatic pump driven by said input means, a hydrostatic motor, and an output means driven by said motor; and an axle assembly having a differential gear means including an input gear and first and second output gears, first and second axle shafts driven by said first and second output gears, respectively, and an output gear train operable to transmit torque from said output means of said hydrostatic transmission to said input gear of said differential gear means, said axle assembly further having an axle housing comprising an upper casing half and a lower casing half, said casing halves being joined together on a first plane containing an axis of rotation of said first and second axle shafts and being operable to journal said axle shafts therebetween; characterized by: (a) said hydrostatic transmission further including a transmission case comprising a first case portion and a second case portion, said case portions being joined together on a second plane oriented generally perpendicular to an axis of rotation defined by said output means; (b) said second case portion including an output hub portion surrounding said output means; (c) said axle housing casing halves including an input portion in cooperative engagement about said output hub portion of said second case portion; (d) another portion of said transmission case cooperating with a portion of at least one of said axle casing halves to define a secondary mounting means and a torque reaction means; and (e) said output hub portion, said secondary mounting means, and said torque reaction means comprising the only portions of said transmission case fixedly secured with said axle housing.

이 특허를 인용한 특허 (82)

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Windhorst,Scott E.; Reid,Bruce E., Assembly for use with a return to neutral mechanism.
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Louis Joseph E., Axle driving apparatus.
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Raymond Hauser ; John Schreier, Axle driving device having lobed bearings.
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Hauser Ray M. ; Johnson Alan W., Brake design for a hydrostatic transaxle.
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Hauser Raymond ; Schreler John ; Houser Michael ; Oolnk Juan Pedro Roberto A., Bypass for a hydrostatic transmission.
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Hauser, Raymond; Holder, Lonnie E., Dual pump.
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Bennett,Michael L., Dual pump apparatus.
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Hauser, Raymond; Bennett, Michael L., Dual pump apparatus with power take off.
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Hauser,Raymond; Holder,Lonnie E., Dual pump transmission.
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Holder, Lonnie E.; Trimble, Robert E.; Todd, Michael, Dual pump transmission.
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Holder,Lonnie E.; Todd,Michael; Trimble,Robert E., Dual pump transmission.
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Phanco, Eric S.; Given, Patricia J.; Wahner, Adam W., Filter assembly for a hydrostatic transaxle.
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Hauser, Raymond; Schreier, John, Filter for hydrostatic device.
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Hauser Raymond M. ; Holder Lonnie E. ; Schreier John D. ; Sporrer Ronald J. ; Bennett Michael Lee, Housing and center section for hydrostatic transmission.
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Brandenburg, Neil; Wilson, Jeffrey A.; Poplawski, Herb, Hydraulic apparatus with return to neutral mechanism.
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Poplawski, Herb; Taylor, Michael W.; Buescher, Ryan S., Hydraulic apparatus with return to neutral mechanism.
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Poplawski,Herb; Taylor,Michael; Buescher,Ryan S.; Wilson,Jeffrey A.; Brandenburg,Neil, Hydraulic apparatus with return to neutral mechanism.
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Hauser, Raymond; Schreier, John, Hydrostatic Transmission.
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Christian Helmut Thoma GB; George Duncan MacRae Arnold GB, Hydrostatic machines for use in transmission and transaxle product.
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Thoma Christian Helmut,GBX ; Arnold George Duncan McRae,GBX, Hydrostatic machines for use in transmission and transaxle product.
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Christian Helmut Thoma GB; George Duncan McRae Arnold GB, Hydrostatic transaxle.
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Phanco, Eric S.; Rawski, Kenneth J., Hydrostatic transaxle.
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Phanco, Eric S.; Rawski, Kenneth J., Hydrostatic transaxle.
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Phanco, Eric S.; Rawski, Kenneth J.; Ward, William H., Hydrostatic transaxle.
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Thoma, Christian Helmut; Arnold, George Duncan McRae, Hydrostatic transaxle.
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Thoma, Christian Helmut; Arnold, George Duncan McRae, Hydrostatic transaxle.
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Thoma, Christian Helmut; Arnold, George Duncan McRae, Hydrostatic transaxle.
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Thoma, Christian Helmut; Arnold, George Duncan McRae, Hydrostatic transaxle.
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Johnson Kevin J. ; Jolliff Norman E. ; Coble Vance E., Hydrostatic transaxle having a casing split along one or more vertical planes.
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Jolliff, Norman E.; Ruebusch, Richard T.; Dowen, Gordon C.; Twaddle, Gary G., Hydrostatic transaxle having axial piston motor and method for manufacturing transaxles.
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Phanco, Eric S.; Rawski, Kenneth J.; Given, Patricia J.; Ward, William H.; Holder, Lonnie E., Zero-turn hydrostatic transaxle.
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Phanco, Eric S.; Rawski, Kenneth J.; Given, Patricia J.; Ward, William H.; Holder, Lonnie E., Zero-turn hydrostatic transaxle.
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상세보기
Poplawski, Herb; Taylor, Michael W.; Buescher, Ryan S., Zero-turn transaxle with mounted return to neutral mechanism.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Hydrostatic transaxle assembly and improved coupling arrangement therefor 원문보기

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Hydrostatic transaxle assembly and improved coupling arrangement therefor 원문보기

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