Pumping device for a waste heat recovery apparatus in a motor vehicle

US10280905B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventors

• Jochen Eggler · Edensbach, DE
• Alfred Elsaesser · Keltern, DE
• Helge Ladisch · Stuttgart, DE
• Christian Maisch · Tauberbischofsheim, DE
• Sascha Senjic · Stuttgart, DE

Key dates

• Filing date: Jul 31, 2015
• Grant date: May 7, 2019
• Expiry date: Jul 31, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B53/10
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A pumping device may include a pump housing partially delimiting a working chamber, and a piston arranged therein, axially movable between first and second positions in which the working chamber has maximum and minimum volumes, respectively. The pumping device may include first and second fluid lines for introducing and discharging fluid to/from the working chamber, respectively. The first fluid line may be fluidically connected to the working chamber via a breakthrough formed in the pump housing at an end face of the working chamber opposite the piston, running transversely to the axial direction at least in the area of the breakthrough. The second fluid line may open obliquely into the working chamber in an area of the second position, relative to the axial direction in an end face delimiting the working chamber towards the first fluid line.