Pump device with deformable pump ring

US10570738B2 · kind B2 · utility

Assignee

• ebm-papst St. Georgen GmbH & Co. KG · DE

Inventors

• Markus Braxmaier · Villingen-Schwenningen, DE
• Hassan Ghodsi-Khameneh · Offenburg, DE
• Daniel Hauer · Ortenberg, DE
• Juergen Herr · St. Georgen, DE
• Marc Jeuck · Laufenburg (Baden), DE
• Gerhard Kuhnert · Villingen-Schwenningen, DE
• Wolfgang Laufer · Schenkenzell, DE
• Mario Staiger · Tennenbronn, DE

Key dates

• Filing date: Mar 31, 2016
• Grant date: Feb 25, 2020
• Expiry date: Aug 25, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04C2240/30
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a pump device for pumping a liquid, comprising a hydraulics housing (12, 212), in which a pump ring (14, 214), a pump ring support (16, 216) and an eccentric (18), which can be driven by a shaft (20), are accommodated. The hydraulics housing (12, 212) has an annular portion (22, 222) and a first and a second lateral section (24, 26, 224), the two lateral sections (24, 26,224) being arranged opposite each other. The pump ring (14, 214) is mounted between the two lateral sections (24, 26, 224) of the hydraulics housing (12, 212) at least in some portions. On a side facing away from the pump ring support (16, 216), two first projections (28, 228), which run in the axial direction of the shaft (20), are each in contact with one of the two lateral sections (24, 26, 224).