Rubber elastic engine mounts or supports with hydraulic damping, especially for engine suspensions in motor vehicles

US4161304A · kind A · utility

Assignee

• Boge GmbH · DE

Inventors

• Heinz Brenner · Adenau, DE
• Arno Hamaekers · Gorxheimertal, DE

Key dates

• Filing date: Apr 27, 1977
• Grant date: Jul 17, 1979
• Expiry date: Apr 27, 1997

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F13/24
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A rubber elastic engine mount with hydraulic damping, especially for motor vehicles, includes an elastic peripheral wall on the engine side joined with a metallic end wall that can be connected with an engine casing, and joined also with a metallic supporting element that can be connected to an engine supporting frame. The elastic wall together with the end walls forms a liquid-filled main chamber which is closed off by a partition connected with the supporting element, and which is connected with an auxiliary liquid-filled elastic walled chamber on the other side of the partition. The auxiliary chamber may be constructed generally the same as the main chamber, including an elastic peripheral wall joined with the supporting element and with a metallic end wall relatively away from the engine. The two end walls are rigidly connected. The peripheral walls function as thrust springs. The partition may be rigid and stationary, or it may be movable. A foamed material may be disposed in the chambers so as to accommodate low amplitude oscillations without any appreciable hydraulic damping. One or both of the end walls may be double-walled, including an outer fixed wall and an inner diaphr…