Hydrostatic transmission

A hydrostatic transmission, comprising:

• a housing;
• an input shaft supported by and projecting outwardly from said housing;
• a hydraulic pump disposed in said housing and driven by said input shaft;
• a first output shaft supported by and projecting outwardly from said housing;
• a hydraulic motor disposed in said housing, hydraulically connected to said hydraulic pump, and connected with said first output shaft;
• a second output shaft supported by and projecting outwardly from said housing;
• a clutch means operable to selectively connect and disconnect said input shaft and said second output shaft;
• and
• a cover for covering an opening of said housing, said cover including a fluid circuit for connecting said hydraulic pump and said hydraulic motor.

A hydrostatic transmission, comprising:

• a housing;
• an input shaft supported by and projecting outwardly from said housing;
• a hydraulic pump disposed in said housing and driven by said input shaft;
• a first output shaft supported by and projecting outwardly from said housing;
• a hydraulic motor disposed in said housing, hydraulically connected to said hydraulic pump, and connected with said first output shaft;
• a second output shaft supported by and projecting outwardly from said housing;
• a hydraulic multi-disc clutch operable to selectively connect and disconnect said input shaft and said second output shaft;
• and
• a charge pump driven by said input shaft, wherein a portion of oil discharged from said charge pump is supplied to fluid circuits for connecting said hydraulic pump and said hydraulic motor and another portion of the oil discharged from said charge pump is supplied to an oil feed circuit of said clutch.

A hydrostatic transmission, comprising:

• a housing;
• an input shaft supported by and projecting outwardly from said housing;
• a joint disposed on one end of said input shaft;
• a hydraulic pump disposed in said housing and driven by said input shaft;
• a first output shaft supported by and projecting from said housing;
• a joint disposed on a projecting end of said first output shaft;
• a hydraulic motor housed in said housing, hydraulically connected with said hydraulic pump;
• output means connected to said hydraulic motor;
• and
• a gear transmission disposed in said housing for connecting said output means of said hydraulic motor and said first output shaft, wherein said gear transmission further comprises,
• an intermediate shaft,
• a first gear disposed on said intermediate shaft,
• a second gear disposed on said intermediate shaft,
• a third gear disposed on said output means, engaged with said first gear,
• a fourth gear disposed on and freely rotatable with respect to said first output shaft, and engaged with said second gear, and
• a clutch member disposed on said first output shaft, rotatably affixed to said first output shaft, axially slidable with respect to said first output shaft, and selectively connecting said first output shaft and said output means, and said first output shaft and said intermediate shaft.

A hydrostatic transmission comprising:

• a housing, wherein said housing includes,
• (a) a first opening formed on one end, a second opening formed on another end and a partition formed at approximately a center of the housing,
• (b) a first cover for closing said first opening, and
• (c) a second cover for covering said second opening,
• wherein a first section of said housing is between said first cover and said partition, and a second section of said housing is between said second cover and said partition;
• an input shaft supported by and projecting outwardly from said housing;
• a joint disposed on a projecting end of said input shaft;
• a hydraulic pump disposed in said first section, mounted on said first cover, and driven by said input shaft;
• a first output shaft supported by and projecting outwardly from said housing;
• a joint disposed on a projecting end of said first output shaft;
• a hydraulic motor disposed in said first section and mounted on said first cover, wherein said first cover includes a fluid circuit for hydraulically connecting said hydraulic pump and said hydraulic motor;
• output means connected to said hydraulic motor;
• a gear transmission disposed in said second section for connecting said output means of said hydraulic motor and first output shaft;
• a second output shaft supported by and projecting from said housing;
• a joint disposed on a projecting end of said second output shaft;
• and
• a clutch means disposed in said second section operable to selectively connect and disconnect said input shaft and second output shaft.