Patent · US Active

Hydraulic accumulator

US9145902B2 · kind B2 · utility

2Cited by

6References

17Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Fredrick R. Poskie · Plymouth, US
Leonid Basin · Farmington Hills, US
Carlos E. Marin · Oxford, US

Key dates

Filing date	Jul 5, 2011
Grant date	Sep 29, 2015
Priority date	—
Expiry date	Dec 10, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B2201/4056
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulic accumulator includes a cylindrical body or housing having male or external threads on each end and shoulders proximate the ends of the threads nearer the center of the cylindrical body or housing that act as stops. An end cap having internal or female threads is disposed at one end of the accumulator. The accumulator may be threaded into a manifold or control valve assembly or it may include a second threaded end cap having an access, i.e., inlet/outlet, port. A piston resides within the accumulator and is biased by a pair of compression springs toward the manifold, control valve body or second threaded end cap.

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