Patent · US Expired

Hybrid vehicle with hydrostatic transmission and hydropneumatic power reserve

US3990235A · kind A · utility

23Cited by
5References
13Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 29, 1975
Grant dateNov 9, 1976
Priority date
Expiry dateMay 29, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/62
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

The invention relates to a hybrid vehicle of the hydrostatic transmission type comprising a main driving engine, a hydraulic, variable volumetric capacity pump driven from said main engine, a hydraulic motor and a hydropneumatic power accumulator mounted in a delivery conduit of said pump. Said vehicle further comprises an auxiliary hydraulic motor hydraulically mounted in parallel relationship to said first hydraulic motor and having a common output shaft therewith, the volumetric capacity of said auxiliary motor being equal to one fraction of the volumetric capacity of said first hydraulic motor.

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