Hydrostatic transmission and power train for vehicle

Details Hydrostatic transmission and power train for vehicle Hydrostatic transmission and power train for vehicle

2006-12-19

2006-12-19

Ho, Ha (Department: 3681)

Planetary gear transmission systems or components

Variable speed or direction transmission combined with...

Transmission output shaft parallel to differential output...

C475S198000, C475S200000

Reexamination Certificate

active

07150693

ABSTRACT:
A hydrostatic transmission for vehicle interposed in a drive-power transmission path between a driving power source and a driving axle for non-stepwisely changing the speed of the vehicle includes an HST housing; a hydraulic pump unit having a pump shaft with first and second ends extending in a fore-aft direction of the vehicle away from each other; a hydraulic motor unit having a motor shaft for outputting the drive power from the motor shaft whose speed is non-stepwisely varied in cooperation with the hydraulic pump unit; a PTO unit having a PTO shaft extending in the fore-aft direction of the vehicle, the PTO shaft being operatively connected to the pump shaft; a charge pump unit for replenishing pressurized hydraulic fluid to a hydraulic circuit, the hydraulic circuit hydraulically connecting the hydraulic pump unit with the hydraulic motor unit, the charge pump unit including a charge pump body, and a charge pump case connected to the HST housing through its wall closer to the driving axle for supporting the charge pump body; the PTO shaft having an one end closer to the driving axle, the one end extending outwardly through the HST housing to have an outer extension positioned outside of the HST housing; and the charge pump case being designed so as to bearing-support the outer extension of the PTO shaft.

REFERENCES:
patent: 3788164 (1974-01-01), Ojima
patent: 3903755 (1975-09-01), Polak
patent: 3969958 (1976-07-01), Miyao et al.
patent: 4304317 (1981-12-01), Vanzant et al.
patent: 4491034 (1985-01-01), Fredriksen
patent: 4559846 (1985-12-01), Cochran et al.
patent: 4704917 (1987-11-01), Hiroyasu
patent: 4930296 (1990-06-01), Takei et al.
patent: 5052245 (1991-10-01), Kigoshi
patent: 5054335 (1991-10-01), Andrews
patent: 5142940 (1992-09-01), Hasegawa
patent: 5560447 (1996-10-01), Ishii et al.
patent: 5564518 (1996-10-01), Ishii
patent: 5700222 (1997-12-01), Bowen
patent: 5884526 (1999-03-01), Fogelberg
patent: 5913950 (1999-06-01), Matsufuji
patent: 6000296 (1999-12-01), Sundguist
patent: 6199380 (2001-03-01), Ishii
patent: 6457546 (2002-10-01), Ishimaru et al.

Affiliated with

Also associated with

Rating

Hydrostatic transmission and power train for vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrostatic transmission and power train for vehicle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrostatic transmission and power train for vehicle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3708214