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公开(公告)号:US3902822A
公开(公告)日:1975-09-02
申请号:US33435073
申请日:1973-02-21
申请人: UNITED AIRCRAFT CORP
CPC分类号: F01D7/00 , F02C7/36 , F05D2220/327 , F05D2260/74 , F05D2260/76 , Y02T50/673
摘要: For a ducted fan propulsor a modular speed reduction gearbox driven by a turbine type of power plant is disposed fore of the plane of rotation of the variable pitch fan relative to the forward direction of the vehicle driven by the power plant.
摘要翻译: 对于风扇推进器,由涡轮机类型的发电厂驱动的模块化减速齿轮箱设置在可变节距风扇相对于由发电厂驱动的车辆的前进方向的旋转平面之前。
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公开(公告)号:US3876334A
公开(公告)日:1975-04-08
申请号:US45924474
申请日:1974-04-08
申请人: UNITED AIRCRAFT CORP
发明人: ANDREWS MERRITT B
CPC分类号: F04D29/36 , F01D7/00 , F04D29/323 , F05D2220/36 , F05D2260/74 , F05D2260/76
摘要: The pitch velocity of alternate and individual high solidity variable pitch blades of a bypass fan propulsor vary so as to pass through zero or flat pitch at different intervals, although ending at the same pitch at the extent of their travel.
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公开(公告)号:US3895884A
公开(公告)日:1975-07-22
申请号:US48602374
申请日:1974-07-05
申请人: UNITED AIRCRAFT CORP
发明人: ANDREWS MERRITT B
CPC分类号: F01D7/00 , F05D2260/74 , F05D2260/76
摘要: This invention is concerned with pitch lock of the variable pitch fan blades of a propulsor whose pitch is varied by a rotary type actuator and where the pitch lock input signal is manifested by a negative torque reaction imparted by the blades.
摘要翻译: 本发明涉及一种推进器的可变桨距风扇叶片的俯仰锁定,该推进器的间距由旋转式致动器改变,并且俯仰锁定输入信号由叶片施加的负扭矩反作用力表现。
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公开(公告)号:US3274036A
公开(公告)日:1966-09-20
申请号:US21421162
申请日:1962-08-02
申请人: UNITED AIRCRAFT CORP
CPC分类号: H01L35/34 , H01L35/16 , Y10S438/971 , Y10T428/12528
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公开(公告)号:US3893789A
公开(公告)日:1975-07-08
申请号:US33433473
申请日:1973-02-21
申请人: UNITED AIRCRAFT CORP
发明人: ANDREWS MERRITT B
CPC分类号: F01D7/00 , F05D2260/74 , F05D2260/76 , Y02T50/673
摘要: Blade angle of a variable pitch ducted fan is varied by transmitting a rotary pitch change mechanical signal across a rotating boundary by a differential gear train for driving a harmonic torque amplifier operatively connected to the root of the fan blades. A one-way rotary device cooperating with the input signal serves to obtain pitch lock.
摘要翻译: 通过用于驱动可操作地连接到风扇叶片的根部的谐波扭矩放大器的差动齿轮系传递旋转间距变化机械信号,从而改变变桨距风扇的叶片角度。 与输入信号配合的单向旋转装置用于获得音调锁定。
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