Two-chamber engine mount with hydraulic damping

US4657227A · kind A · utility

Assignee

• Metzeler Kautschuk GmbH · DE

Inventor

• Manfred Hofmann · Hettstadt, DE

Key dates

• Filing date: Nov 8, 1985
• Grant date: Apr 14, 1987
• Expiry date: Nov 8, 2005

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F13/10
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A two-chamber engine mount with hydraulic damping, includes a housing, an intermediate plate disposed in the housing dividing the housing into an upper chamber above the intermediate plate and a lower chamber below the intermediate plate to be filled with fluid, the intermediate plate having a damping opening formed therein for fluid passage, an upper rubbery elastic peripheral wall at least partially defining the upper chamber, a lower cup-shaped rubbery elastic peripheral wall with a given hardness at least partially defining the lower chamber, an upper motor support plate disposed above the upper chamber, the upper support plate having a membrane chamber centrally formed therein to be filled with air, and a rubbery membrane having a greater hardness than the given hardness separating the membrane chamber from the upper chamber.