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Dive into the research topics where Donald R. Haefner is active.

Publication


Featured researches published by Donald R. Haefner.


Archive | 1998

Engine cylinder pressure sensor with thermal compensation element

Donald R. Haefner; Dennis Richard Zitny; David Arthur Belfi


Archive | 1991

Engine throttle servoactuator control system

Walter Kenneth O'neil; Donald R. Haefner; Wayne E. Klindt; Mark L. Leonard; Daniel R. Parks; Don K. St. John


Archive | 1989

Throttle control servoactuator

Andrew A. Kenny; Loren H. Uthoff; Donald R. Haefner


Archive | 1989

Throttle cable intervention device

Donald R. Haefner; David Michael Preston


Archive | 1995

Combustion chamber pressure transducer and method of making same

John A. Kovacich; Donald R. Haefner; Bruce M. Hatton; Donald Michael Stout; Lawrence J. Ryczek; Arlene Marie Klumb


Archive | 1990

Split arm throttle cable intervention device

David Michael Preston; Donald R. Haefner


Archive | 1988

Torch ignitor for lean burn engines

David H. Scharnweber; Lyle O. Hoppie; Donald R. Haefner


Archive | 2003

DISLODGING A THROTTLE PLATE FROM ICE FORMATION

Edwin D. Lorenz; David Michael Preston; Donald R. Haefner


Archive | 2002

Variable valve actuator for internal combustion engine

David Michael Preston; Donald R. Haefner; David H. Scharnweber


Archive | 1992

Dual mode electrical servoactuator

Philip Guest Jr.; Donald R. Haefner; Richard F. Neuman; David Michael Preston

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