Reciprocating piston machine with capillary passages on valves for pressure relief

US5895208A · kind A · utility

Assignee

• KNF Neuberger GmbH · DE

Inventors

• Heinz Riedlinger · Glückstadt, DE
• Erich Becker · Springe, DE

Key dates

• Filing date: Sep 12, 1997
• Grant date: Apr 20, 1999
• Expiry date: Sep 12, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/7848
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A reciprocating piston machine (1) has an inlet valve (9) on the suction side and an outlet valve (10) on the delivery side, which valves exhibit a valve body having a valve disc (11, 12) comprising of an elastomer, whereby the compression chamber (6) sealed off by the reciprocating piston or similar displacer (2) and by the valves (9, 10) has a pressure relief connection between compression chamber and atmosphere. To be able to bring the compression chamber (6) quickly to atmospheric pressure after the reciprocating piston machine (1) has been put out of operation and to be able to bring about the restart of the reciprocating piston machine (1) so as to be load-free in this respect, the valve disc (11,12) of the valve (9, 10) on the delivery side and/or on the suction side has at least one capillary passage (18, 19) as pressure relief connection.