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Patent Searching and Data


Title:
ARRANGEMENT FOR ADJUSTING AN AIRCRAFT PROPELLER
Document Type and Number:
WIPO Patent Application WO/2010/052042
Kind Code:
A3
Abstract:
An arrangement for the hydraulic adjustment of the propeller blades of an aircraft propeller (1) with the help of a hydraulic pump (5) having a hydraulic cylinder (3) which is acted upon by compressed oil comprises a pressure control valve (11) arranged parallel to the hydraulic pump and connected directly to the pressure connection (4) and intake connection (8) thereof, preferably integrated into the pump housing (14). The pump losses and heating of the oil are therefore reduced and hydraulic efficiency is improved.

Inventors:
BOEHM MATTHIAS (DE)
Application Number:
PCT/EP2009/061298
Publication Date:
July 15, 2010
Filing Date:
September 01, 2009
Export Citation:
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Assignee:
THIELERT AIRCRAFT ENGINES GMBH (DE)
BOEHM MATTHIAS (DE)
International Classes:
B64C11/38
Foreign References:
US3115937A1963-12-31
US2557334A1951-06-19
US2204639A1940-06-18
US2927648A1960-03-08
DE1142280B1963-01-10
US5364231A1994-11-15
US2661806A1953-12-08
FR1036542A1953-09-08
GB629540A1949-09-22
Attorney, Agent or Firm:
SPECHT, Volker (Berlin, DE)
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