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Gregory G. Hafner

Caterpillar Inc.

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Publication

Featured researches published by Gregory G. Hafner.

Archive | 1994

Tuned actuating fluid inlet manifold for a hydraulically-actuated fuel injection system

Gregory G. Hafner; Jeffrey C. Huang; Xiangying Liu

Archive | 2002

Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine

Kevin P. Duffy; Eric C. Fluga; Gregory G. Hafner; Brian G. McGee; Matthew R. Roth

Archive | 1993

Flexible injection rate shaping device for a hydraulically-actuated fuel injection system

Gregory G. Hafner; Xiangying Liu

Archive | 2003

Method and apparatus for trimming an internal combustion engine

Gregory G. Hafner; Brian G. McGee

Archive | 2000

Method and apparatus for trimming a fuel injector

Gregory G. Hafner; Brian G. McGee

Archive | 1996

Bearing assembly having improved fretting and abrasion resistance

Chuong Q. Dam; Gregory G. Hafner; Kenneth W. Burris

Archive | 2000

Method and apparatus for controlling the current level of a fuel injector signal during sudden acceleration

Kevin P. Duffy; Gregory G. Hafner; Brian G. McGee; Matthew R. Roth

Archive | 1998

Pressure control system for a variable displacement hydraulic pump

James R. Blass; Gregory G. Hafner

Archive | 2000

Accurate deliver of total fuel when two injection events are closely coupled

Gregory G. Hafner; Brian G. McGee

Archive | 1998

Injection rate shaping device for a fill metered hydraulically-actuated fuel injection system

Gregory G. Hafner

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Brian G. McGee

Caterpillar Inc.

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Matthew R. Roth

Caterpillar Inc.

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Eric C. Fluga

Caterpillar Inc.

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James R. Blass

Caterpillar Inc.

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P Duffy

Caterpillar Inc.

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Chuong Q. Dam

Caterpillar Inc.

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Kenneth W. Burris

Caterpillar Inc.

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Kevin P. Duffy

Caterpillar Inc.

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Ronald D. Shinogle

Caterpillar Inc.

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Xiangying Liu

Caterpillar Inc.

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