Damping device

US10465832B2 · kind B2 · utility

Assignee

• HYDAC TECHNOLOGY GMBH · DE

Inventors

• Herbert Baltes · Losheim, DE
• Peter Kloft · Ransbach-Baumbach, DE
• Alexander Wohlers · Saarburg, DE
• Robert Marinus Behr · Weyhe, DE
• Simon MacLennan · Hamburg, DE

Key dates

• Filing date: Dec 23, 2015
• Grant date: Nov 5, 2019
• Expiry date: Dec 23, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/0396
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A damping device, in particular for damping or preventing pressure impacts, like pulsations, in hydraulic supply circuits has a damping housing (1) surrounding a damping chamber with a fluid inlet (13) and a fluid outlet (15). A damping tube (21; 51) is located in the flow path between the damping inlet and outlet and has a branch opening (29; 73, 75, 77, 79, 81) passing through the tube wall and leading to a Helmholtz volume (27; 53, 55, 57, 59, 61) inside of the damping housing (1) forming a Helmholtz resonator in a region positioned inside of the length of the damping tube. A fluid filter (35) is arranged inside of the damping housing (1) in the flow path between the fluid inlet (13) and fluid outlet (15).