Patent · US Expired

Transaxle having hydrostatic transmission with expansion chamber

US5616092A · kind A · utility

23Cited by
3References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 11, 1996
Grant dateApr 1, 1997
Priority date
Expiry dateMar 11, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/2186
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

An improved hydrostatic transmission which is compact, reliable and economical to manufacture, including a novel means for reducing the speed of the input to the transaxle using both hydraulics and mechanical gearing; an improved differential which is stronger and less complicated than prior art designs; a more effective and efficient means for braking the transaxle, an improved means for hydraulically bypassing the hydrostatic transmission and a unique check valve arrangement for maintaining oil pressure within the hydrostatic transmission.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.