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US4693670: Adjusting device for an airplane propulsion system
14 Claims, No Drawings
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.
- 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.
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