Dirt trap as a functional module in the impeller of a coolant pump

US10337393B2 · kind B2 · utility

Assignee

• Schaeffler Technologies AG & Co. KG · DE

Inventors

• Sebastian Hurst · Bubenreuth, DE
• Michael Weiss · Reichertshofen, DE

Key dates

• Filing date: Jan 29, 2015
• Grant date: Jul 2, 2019
• Expiry date: May 7, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01P2011/063
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A coolant pump (1) of an internal combustion engine, having a pump casing (2), in which a pump shaft (3) is rotatably supported by a water pump bearing assembly (4) and an impeller (6) connected in a rotationally fixed manner to the pump shaft (3) is associated with an intake space (7). During a rotation of the impeller (6) together with associated blades (8), a coolant as a working medium is pumped from the intake space (7), via a coolant outlet of the coolant pump (1), into a cooling system of the internal combustion engine. A dirt trap is associated as a functional module (12a) with the impeller (6) on a side facing away from the intake space (7), wherein the working medium flows into the functional module (12a) from the intake space via at least one opening (13) introduced into the impeller and emerges via a flow outlet (15a).