Andrew Peter Perr

7240643, Jul 10, 2007

Apr 13, 2006

11/403441

Andrew P. Perr - Columbus IN, US
Kristopher R. Bare - Columbus IN, US
Marcus M. Chui - Franklin IN, US

Cummins, Inc. - Columbus IN

F01P 1/04

123 4135

An internal combustion engine includes an engine block having an oil rifle. A cylinder liner carried by the engine block includes a bottom end. A piston cooling nozzle coupled with the engine block includes an inlet in communication with the oil rifle, a tube, and a bracket coupled with the tube. The bracket engages the bottom end of the cylinder liner.

8146574, Apr 3, 2012

Feb 11, 2009

12/369049

Scott P. Heckel - Stoughton WI, US
Jerald J. Moy - Oregon WI, US
Scott W. Schwartz - Cottage Grove WI, US
Andrew P. Perr - Columbus IN, US
Mark V. Holzmann - Stoughton WI, US
Peter K. Herman - Stoughton WI, US
Michael T. Zuroski - Sun Prairie WI, US
Brian W. Schwandt - Fort Atkinson WI, US

Cummins Filtration IP, Inc. - Minneapolis MN

F02B 77/04
F02M 25/00
F02M 35/02
F01M 13/00

123572, 123 4186, 123198 E

An engine air management system is provided for an internal combustion engine generating blowby gas in a crankcase containing engine oil and oil aerosol. The system includes combinations of two or more of an air-oil separator, an air filter, and an acoustic silencer.

8342160, Jan 1, 2013

Mar 30, 2012

13/434973

Scott P. Heckel - Stoughton WI, US
Jerald J. Moy - Oregon WI, US
Scvott W. Schwartz - Cottage Grove WI, US
Andrew P. Perr - Columbus IN, US
Mark V. Holzmann - Stoughton WI, US
Peter K. Herman - Stoughton WI, US
Michael T. Zuroski - Sun Prairie WI, US
Brian W. Schwandt - Fort Atkinson WI, US

Cummins Filtration IP, Inc. - Minneapolis MN

F02B 77/00

123572

An engine air management system is provided for an internal combustion engine generating blowby gas in a crankcase containing engine oil and oil aerosol. The system includes combinations of two or more of an air-oil separator, an air filter, and an acoustic silencer.

8616188, Dec 31, 2013

Dec 20, 2012

13/721273

Barry M. Verdegan - Stoughton WI, US
Jerald J. Moy - Oregon WI, US
Scott W. Schwartz - Cottage Grove WI, US
Andrew P. Perr - Columbus IN, US
Mark V. Holzmann - Stoughton WI, US
Peter K. Herman - Stoughton WI, US
Michael T. Zuroski - Sun Prairie WI, US
Brian W. Schwandt - Fort Atkinson WI, US

Cummins Filtration IP, Inc. - Minneapolis MN

B01D 46/00

123572

An engine air management system is provided for an internal combustion engine generating blowby gas in a crankcase containing engine oil and oil aerosol. The system includes combinations of two or more of an air-oil separator, an air filter, and an acoustic silencer.

20090241683, Oct 1, 2009

Mar 28, 2008

12/057772

Andrew P. Perr - Columbus IN, US
Yongquan Chai - Columbus IN, US

Cummins, Inc. - Indianapolis IN

G01F 1/00
F02M 35/10

73861, 123391, 73198, 12318453

Mass air flow sensing for internal combustion engines. In one aspect, a sensor adaptor for use in an internal combustion engine includes an inlet housing including an approximately 90-degree elbow and directing air within the inlet housing to the internal combustion engine in an airflow direction. A mass air flow sensor is coupled to the housing at a location after the 90-degree elbow with respect to the airflow direction and senses the air flowing within the inlet housing.

61161985, Sep 12, 2000

Jul 21, 1997

8/897912

Daniel E. Kirtley - Columbus IN
Carol L. Corbeels - Columbus IN
Andrew P. Perr - Columbus IN
Abby J. Dawkins - San Jose CA
Kristopher R. Bare - Columbus IN

Cummins Engine Company, Inc. - Columbus IN

F02F 116

123 4184

A replaceable cylinder liner for an internal combustion engine. The position of the liner within the block is established by a midstop. An interference fit below the midstop seals the bottom end of a cooling passage that extends around the liner. The top end of the cooling passage is sealed by an o-ring, and when the engine is warmed up by an interference fit also. The top of the cooling passage is close to the top dead center position of the top piston ring, and reduces the temperature of the top piston ring.

59750600, Nov 2, 1999

Jan 20, 1998

9/008808

Thomas R. Stover - Columbus IN
Andrew P. Perr - Columbus IN

Cummins Engine Company, Inc. - Columbus IN

F02M 3704

123508

The present invention provides an internal combustion engine drive train actuating assembly which includes a dual overhead cam shaft arrangement wherein a pair of cam shafts is supported in the head section of the engine. One cam shaft is positioned to actuate the intake and exhaust valves. The other cam shaft is dedicated to actuating only the unit fuel injectors and is positioned relative to the injector actuating rocker levers to contact only these rocker levers during engine operation. The rocker lever-contacting lobes on the dedicated injector-actuating cam shaft are dimensionally wider than has heretofore been possible, which allows the high fuel injection pressures required to achieve optimum fuel economy and emissions while minimizing hertz stresses on the cam shaft.

58064990, Sep 15, 1998

Mar 18, 1997

8/820230

Thomas R. Stover - Columbus IN
Andrew P. Perr - Columbus IN

Cummins Engine Company, Inc. - Columbus IN

F02M 3704

123508

The present invention provides an internal combustion engine drive train actuating assembly which includes a dual overhead cam shaft arrangement wherein a pair of cam shafts is supported in the head section of the engine. One cam shaft is positioned to actuate the intake and exhaust valves. The other cam shaft is dedicated to actuating only the unit fuel injectors and is positioned relative to the injector actuating rocker levers to contact only these rocker levers during engine operation. The rocker lever-contacting lobes on the dedicated injector-actuating cam shaft are dimensionally wider than has heretofore been possible, which allows the high fuel injection pressures required to achieve optimum fuel economy and emissions while minimizing hertz stresses on the cam shaft.