Patent · US Expired

Engine starting and power generating system

US4817459A · kind A · utility

4Cited by
10References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 24, 1987
Grant dateApr 4, 1989
Priority date
Expiry dateDec 24, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/19033
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

Operational efficiency in a combined engine starting and power generating system including an engine 110 connected to a dynamoelectric machine 142 useable as a motor or as a generator via a differential 114 and utilizing variable and fixed displacement hydraulic units 146, 156 is increased by sizing the variable and fixed hydraulic units 146 and 156 for power generating operation and by providing an auxiliary fixed displacement hydraulic unit 162 for use only during an engine starting mode.

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