Patent · US Expired

Actuator

US7055320B2 · kind B2 · utility

4Cited by
6References
28Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 30, 2004
Grant dateJun 6, 2006
Priority date
Expiry dateAug 18, 2024

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF15B15/18
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An actuator comprises a pump-driving section which is driven and rotated by a current, and a pump mechanism which is connected to the pump-driving section and which sucks/discharges a pressure oil. A cylinder mechanism, which has a piston that is displaceable in the axial direction by being supplied with the pressure oil, is provided on the pump-driving section and the pump mechanism. The amount of discharge of the pressure oil to the cylinder mechanism is adjusted by freely changing the angle of inclination of a tilting member provided in the pump mechanism.

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