Patent · US Active

Cylinder head with oil return

US8439007B2 · kind B2 · utility

1Cited by

4References

13Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Bernd Steiner · Bensberg, DE
Kai Sebastian Kuhlbach · Bensberg, DE
Jan Mehring · Cologne, DE

Key dates

Filing date	Sep 3, 2010
Grant date	May 14, 2013
Priority date	—
Expiry date	Aug 26, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01M5/021
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

Engine oil may pool in various locations in the cylinder head near the valves and underneath the camshaft. Rather than directly conducting the oil to the oil return passages, the oil is conducted to a surface proximate the exhaust ducts before being conducted to the oil return passage so that the oil is readily warmed up during a cold start by the contact with a surface in the cylinder head proximate exhaust ducts. The provision of such a surface proximate exhaust ducts is facilitated by the integrated exhaust manifold design in which the exhaust ducts are merged prior to exiting the cylinder head. By rapidly heating the oil, the oil's viscosity decreases, thereby reducing friction and improving fuel efficiency.

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