Adaptive hydropneumatic pulsation damper
AssigneeMercedes-Benz AG
InventorsWolfgang Becke, Joachim Esser, Heiko Bublitz, Uwe Kooths, Oliver Trecker
Life of this patent
Estimating the term…
Abstract
An adaptive hydropneumatic pulsation damper is especially suited for hydraulic systems subject to pulsation with a strongly variable operating pressure. Because of good damping action, the pulsation damper makes a hydraulically firm coupling possible between hydraulic system elements, e.g., a pressure source and a consumer.
Claims17
A hydropneumatic pulsation damper for hydraulic systems subject to pulsations of hydraulic medium with variable operating pressure, comprising a chamber configured to be coupled with the hydraulic system and a vapor or gas medium enclosed in said chamber and exposed to the hydraulic medium pulsations, said vapor or gas medium forming a volumetrically elastic cushion being impacted by the hydraulic pressure via a relatively unthrottled first connection so as to permit displacement of only a minimum quantity of the hydraulic medium, and via a throttled second connection to permit displace of quantities of the hydraulic medium substantially greater than the minimum quantity of the hydraulic medium, and said chamber being operatively configured as a hydraulic area connected with the hydraulic system via at least the throttled second connection and a gaseous area divided from the hydraulic area by a separator having substantial movability and low movement resistance.
Dependencies are inferred from the claim text.