Timothy Lee Neal

US Patent:

8074614, Dec 13, 2011

Filed:

Sep 12, 2008

Appl. No.:

12/209580

Inventors:

Craig D. Marriott - Clawson MI, US
Timothy L. Neal - Ortonville MI, US
Jeff L. Swain - Flushing MI, US
Miguel A. Raimao - Colorado Springs CO, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F01L 9/02

US Classification:

123 9012, 123 9016

Abstract:

An engine assembly may include a cylinder head defining an engine coolant reservoir, a pressurized fluid supply, a valve actuation assembly, and a hydraulic fluid reservoir. The valve actuation assembly may be in fluid communication with the pressurized fluid supply and may include a valve member displaceable by a force applied by the pressurized fluid supply. The hydraulic fluid reservoir may be in fluid communication with the valve actuation assembly and in a heat exchange relation to the engine coolant reservoir.

US Patent:

8371257, Feb 12, 2013

Filed:

Mar 10, 2010

Appl. No.:

12/720917

Inventors:

Joseph J. Moon - Clawson MI, US
Timothy L. Neal - Ortonville MI, US

International Classification:

F01L 1/34

US Classification:

123 9017, 123 9015, 464160

Abstract:

A cam phaser assembly may include a first stator, a first rotor, a second stator and a second rotor. The first stator may be driven by an engine crankshaft. The first rotor may be coupled to a first end of a concentric camshaft and located within the first stator. The first rotor and the first stator may cooperate to define a first set of fluid chambers. The second stator may be fixed for rotation with the first rotor and the first shaft. The second rotor may be coupled to the first end of the concentric camshaft and fixed for rotation with the second shaft and located within the second stator. The second rotor and the second stator may cooperate to define a second set of fluid chambers.

US Patent:

20130042826, Feb 21, 2013

Filed:

Aug 17, 2011

Appl. No.:

13/211754

Inventors:

JASON C. MELECOSKY - OXFORD MI, US
TIMOTHY L. NEAL - ORTONVILLE MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - DETROIT MI

International Classification:

F01M 9/10
F01L 9/02

US Classification:

123 9012, 123196 R

Abstract:

An engine assembly includes an engine block, a cylinder head coupled to the engine block and first and second lubrication systems. The first lubrication system includes a first pump in communication with the engine block and providing a first fluid to the engine block. The second lubrication system is isolated from the first lubrication system and includes a second pump in communication with the cylinder head and providing a second fluid to the cylinder head.