Composite accumulator

US9212670B2 · kind B2 · utility

Assignee

• GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

• Edward W. Mellet · Rochester Hills, US
• Carlos E. Marin · Oxford, US
• Charles K. Buehler · Lansing, US
• James B. Borgerson · Clarkston, US
• Leonid Basin · Farmington Hills, US
• Philip C. Lundberg · Keego Harbor, US
• Glenn E. Clever · Big Rapids, US
• Gary H. Paelicke · Saline, US

Key dates

• Filing date: Feb 8, 2012
• Grant date: Dec 15, 2015
• Expiry date: Sep 28, 2033

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B1/045
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A composite accumulator includes a base having a closed end and an open end, the base having an inner surface that defines a cavity and having a fluid port in communication with the cavity for communicating a hydraulic fluid in and out of the cavity. A cover is disposed over the open end of the base and is secured to the base by a fastener. A piston is disposed within the base and the cover. The piston is sealed to the inner surface of the cover and is translatable along an axis. A biasing member is disposed within the base and the cover and located axially between the piston and the cover. The base and the cover are plastic.