Patent · US Active

Method for operating a coolant circuit

US10161361B2 · kind B2 · utility

3Cited by

1References

16Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Hans Guenter Quix · Herzogenrath, DE
Rainer Lach · Würselen, DE
Jan Mehring · Cologne, DE

Key dates

Filing date	Jan 2, 2013
Grant date	Dec 25, 2018
Priority date	—
Expiry date	Mar 6, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M26/28
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating a liquid coolant circuit of an internal combustion engine is described in which the coolant circuit contains an integrated EGR cooler such that the cooling system has a single circuit with two operational modes. The method includes a controller that can switch between operational modes to enable delivery of coolant to the EGR cooler when the flow of coolant through the block cooling circuit is blocked. In the second operational mode, the method also includes using an auxiliary pump to pass coolant to the EGR cooler while bypassing the main coolant pump, which can occur by adjusting the flow of coolant through the circuit so the flow through a bypass line is reversed relative to the inherent forward direction of flow in the bypass line during the first operational mode.

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