Joseph Robbins

US Patent:

7789054, Sep 7, 2010

Filed:

Mar 10, 2008

Appl. No.:

12/045241

Inventors:

Frederick J. Rozario - Fenton MI, US
Joseph E. Robbins - Mayville MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI

International Classification:

F01L 1/34

US Classification:

123 9017, 123 9015, 123 9031

Abstract:

An engine assembly may include a cam phaser assembly coupled to a concentric camshaft. The cam phaser assembly may include first and second plate assemblies that have first and second vanes, an oil chamber housing located axially between the first and second plate assemblies, an oil distribution member, and a first fastener. The first and second plates may define first and second fastener passages. The oil chamber housing may define first and second chambers and a first central bore. The first vane may extend into the first chamber and the second vane may extend into the second chamber. The oil distribution member may be located within the central bore of the oil chamber housing and may define a third fastener passage. The first fastener may extend through the first, second, and third fastener passages and couple the cam phaser assembly to an outer shaft of the concentric camshaft.

US Patent:

7966983, Jun 28, 2011

Filed:

Apr 10, 2008

Appl. No.:

12/100770

Inventors:

Glenn E. Clever - Washington MI, US
Frederick J. Rozario - Fenton MI, US
Shekhar G. Wakade - Grand Blanc MI, US
Joseph E. Robbins - Mayville MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B21D 53/84
B21K 1/12

US Classification:

123 906, 298881, 74567

Abstract:

A camshaft may include a first shaft, a first lobe member, and a second lobe member. The first shaft may include an annular wall defining a first bore. The wall may include a first portion having a first radial outer surface and a second portion having a second radial outer surface that is radially offset relative to the first radial outer surface. The first lobe member may define a second bore having the first portion of the first shaft located therein and frictionally engaged with the first shaft for rotation with the first shaft. The second lobe member may define a third bore having the second portion of the first shaft located therein. The second lobe member may be rotatably disposed on the second portion of the first shaft.

US Patent:

8215274, Jul 10, 2012

Filed:

Jun 18, 2008

Appl. No.:

12/141564

Inventors:

Frederick J. Rozario - Fenton MI, US
Joseph E. Robbins - Mayville MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F01L 1/34

US Classification:

123 9017, 123 9012

Abstract:

A hydraulic control system to provide an oil or pressurized fluid supply to a variable cam phasing system in an engine is provided. The hydraulic control system includes a valve housing attachable to a front cover assembly of the engine; a first valve installed in the housing; and an inlet passage defined by the front cover assembly hydraulically communicating with the first valve in the housing to carry pressurized fluid from a fluid source to the first valve. A first and a second outlet passage defined by the housing hydraulically communicates with the first valve to allow the pressurized fluid to flow to the cam phasing system, thereby variably moving a camshaft assembly operatively connected to the cam phasing system.

US Patent:

8534252, Sep 17, 2013

Filed:

Jan 5, 2011

Appl. No.:

12/984959

Inventors:

Glenn E. Clever - Washington MI, US
Frederick J. Rozario - Fenton MI, US
Shekhar G. Wakade - Grand Blanc MI, US
Joseph E. Robbins - Mayville MI, US

International Classification:

F01L 1/047
F01L 1/08

US Classification:

123 906, 298881, 74567

Abstract:

A camshaft may include a first shaft, a first lobe member, and a second lobe member. The first shaft may include an annular wall defining a first bore. The wall may include a first portion having a first radial outer surface and a second portion having a second radial outer surface that is radially offset relative to the first radial outer surface. The first lobe member may define a second bore having the first portion of the first shaft located therein and frictionally engaged with the first shaft for rotation with the first shaft. The second lobe member may define a third bore having the second portion of the first shaft located therein. The second lobe member may be rotatably disposed on the second portion of the first shaft.

US Patent:

20090223469, Sep 10, 2009

Filed:

Mar 10, 2008

Appl. No.:

12/045147

Inventors:

Frederick J. Rozario - Fenton MI, US
Mark Stabinsky - Troy MI, US
Joseph E. Robbins - Mayville MI, US
Steven W. Merricle - Warren MI, US
William C. Albertson - Clinton Township MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS, INC. - DETROIT MI

International Classification:

F02B 75/06
F01L 1/02
F01L 1/344

US Classification:

123 9017, 123 9031, 1231922, 464 1

Abstract:

An engine assembly may include an engine structure, a crankshaft, a camshaft, a balance shaft, and first and second gears. The crankshaft, camshaft, and balance shaft may each be rotatably supported by the engine structure. The camshaft may be rotationally driven by the crankshaft and the first gear may be coupled to the camshaft. The second gear may be fixed for rotation with the balance shaft and meshingly engaged with and driven by the first gear.