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US4693670: Adjusting device for an airplane propulsion system

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Filing Information

Inventor(s) Juergen Hawener · Klaus Hain ·
Assignee(s) Dr. h.c.F. Porsche Aktiengesellschaft ·
Primary Examiner Powell, Jr.; Everette A. ·
Application Number US6824281
Filing date 01/30/1986
Issue date 09/15/1987
Predicted expiration date 01/30/2006
U.S. Classifications 416/25  · 416/27  ·
International Classifications B63H 310  ·
Kind CodeA
International Classifications 41625;27 ·
Foreign Priority DE3503951 - 02/06/1985 ·
14 Claims, No Drawings


Abstract

An adjusting device is provided for an airplane propulsion system using the reciprocating piston combustion engine and a propeller, which adjusting device simultaneously adjusts the throttle valve and the propeller pitch of the propellers. The adjusting device is formed with a connecting rod and a carrier rod connected thereto. The connecting rod is provided as an adjusting cable whereby the cable core is under spring pretensioning in lower rotational speeds of the motor.

Independent Claims | See all claims (14)

  1. 1. Adjusting apparatus for an airplane propulsion system of the type having a reciprocating piston combustion engine with an adjustable intake throttle valve and with a propeller pitch regulator; the improvement comprising: a throttle valve, a propeller pitch regulator, said adjusting apparatus comprising:movable connecting rod means linked to the throttle valve via a pivot joint means and movably guided in and with respect to a relatively fixed rod casing means,throttle valve spring means fixed to the rod casing means and biasing the connecting rod pivot joint means toward an open throttle position,manually releasable blocking means for selectively blocking movement of the connecting rod means with respect to the fixed rod casing means, andcarrying rod means connected to the connecting rod means and a control member of the propeller pitch regulator via the interposition of a pitch regulator spring means therebetween.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US2216416 MESSERSCHMITT BOELKOW BLOHM Mader Oct 1940
US2242314 AVIAT MFG CORP Martin et al. May 1941
US2545205 GLENN L MARTIN CO Hill et al. Mar 1951
US2664958 PIASECKI HELICOPTER CORP Dancik Jan 1954
US2740255 BENDIX AVIAT CORP Machlanski Apr 1956
US3129768 ELTRA CORP Collins Apr 1964
US3261405 FAIRCHILD HILLER CORP Andrews Jul 1966
US3518022 CANADAIR LTD Adams Jun 1970
US3551069 MORRIS ALBERT E JUN Morris Dec 1970
US4430907 Avco Corporation Ben-Porat Feb 1984

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
AU227809Jan 1959
DE1079961CURTISS WRIGHT CORPApr 1960
DE3306612PORSCHE AGSep 1984
FR817981Sep 1937
FR983519Jun 1951
GB790560SAUNDERS ROE LTDFeb 1958
GB911021GEN MOTORS CORPNov 1962