Patent · US Expired

Viscosity compensating circuits

US4426194A · kind A · utility

12Cited by
10References
17Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 6, 1981
Grant dateJan 17, 1984
Priority date
Expiry dateMar 6, 2001

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF15B21/045
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

The present invention is directed to a simplified viscosity compensating circuit which utilizes a viscosity sensitive capillary and a flow restriction means in series therewith to regulate the pressure at a particular point in a control circuit in response to a change in viscosity of the control fluid. Such viscosity compensation in the circuit is utilized to either maintain a uniform pressure at the circuit output or off-set an adverse condition caused by a change in viscosity of the control fluid.

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