Patent · US Active

Coolant jacket for a liquid-cooled cylinder head

US10634088B2 · kind B2 · utility

0Cited by

4References

15Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Wolfgang Ruffing · Unterschleißheim, DE
Frank Ruetten · Munich, DE
Ulrich Gutzer · Munich, DE

Key dates

Filing date	Mar 14, 2013
Grant date	Apr 28, 2020
Priority date	—
Expiry date	Mar 14, 2033

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01P3/02
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A coolant jacket is provided for a liquid-cooled cylinder head for an internal combustion engine having a crankcase. The cylinder head has a gas exchange intake side having two gas exchange intake valves and a gas exchange exhaust side having two gas exchange exhaust valves. A fuel injection valve is provided on the intake side and an ignition device is provided on the exhaust side between the gas exchange valves. The coolant jacket extends as a first partial coolant jacket on the exhaust side, coming from the crankcase, between the gas exchange exhaust valves and then radially outside around the ignition device and the fuel injection valve and further in the direction of the intake side and the crankcase. Optimal cooling of the ignition device and the fuel injection valve is achieved which enables high specific powers and pressures leading to fuel consumption and cost advantages.

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