Patent · US Expired

Engine pressure-vacuum cooling system with a horizontal coolant storage tank

US4414926A · kind A · utility

1Cited by
6References
3Claims
0Family size

Inventor

Key dates

Filing dateSep 23, 1981
Grant dateNov 15, 1983
Priority date
Expiry dateSep 23, 2001

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF01P11/18
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An engine pressure-vacuum cooling system with a horizontal coolant storage tank wherein the cooling system is pressurized during engine operation and maintained under vacuum when the engine is inoperative. After filling the system with coolant, during the initial engine warm-up cycles air is purged through a one-way valve and the cooling system thereafter sealed against further entry of air. The storage tank includes a means for confining sludge and other debris to the tank and a means for warning when the system vacuum exceeds a pre-determined level.

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