Patent · US Expired

Braking valve for hydraulic circuits

US4470339A · kind A · utility

3Cited by
7References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 23, 1983
Grant dateSep 11, 1984
Priority date
Expiry dateNov 23, 2003

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF15B13/01
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

The body of the braking valve includes a front chamber, an intermediate chamber and a rear chamber which surround a blocking component and a governing piston. The diameter of the bore, in which slides the governing piston at the rear of the chamber, is equal to the diameter of the line along which the truncated conical bearing surface of the blocking component comes into contact with a seat situated between the front and intermediate chambers. The pressure in the intermediate chamber is connected to an outlet of a distributor which has no effect on the balance position on the blocking component.

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