Patent · US Active

Coolant pump for an internal combustion engine

US10508650B2 · kind B2 · utility

2Cited by

2References

11Claims

0Family size

Assignee

PIERBURG GMBH · DE

Inventors

Stephan Zielberg · Bochum, DE
Andreas Burger · Krefeld, DE
Michael-Thomas Benra · Castrop-Rauxel, DE
STEFAN ROTHGANG · Rheinberg, DE
Michael Becker · Eßlingen, DE

Key dates

Filing date	Oct 19, 2016
Grant date	Dec 17, 2019
Priority date	—
Expiry date	Jan 19, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2270/64
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A coolant pump for an internal combustion engine includes a delivery duct, a drive shaft, a coolant pump impeller arranged on the drive shaft to covey a coolant into the delivery duct, a control slide which controls a cross-section of an annular gap arranged between an outlet of the coolant pump impeller and the delivery duct, a side channel pump with a side channel pump impeller arranged on the drive shaft and a side channel, a pressure duct comprising a cross-section which fluidically connects an outlet of the side channel to a first pressure chamber of the control slide, a valve which opens and closes the cross-section of the pressure duct, and a first housing part arranged to have the side channel be formed therein and the control slide slidingly guided thereon. The coolant pump impeller is integrally formed with the side channel pump impeller.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.