专利检索 ap:("UNITED TECHNOLOGIES CORP") AND inv:"CARVALHO PAUL A" 第 1 页

1.

发明公开
CONTROL SYSTEM FOR BLADES FOR A VARIABLE PITCH PROPELLER 有权
标题翻译：控制系统的螺旋桨与攻击可调角度叶片

公开(公告)号：EP1073583A4

公开(公告)日：2005-02-09

申请号：EP99920193

申请日：1999-04-29

申请人： UNITED TECHNOLOGIES CORP

发明人： PRUDEN ROBERT W , CARVALHO PAUL A

IPC分类号： B64C11/38 , B24C11/00 , B64C11/06 , B64C11/30 , B64C11/40 , B64C11/44 , B64C11/00

CPC分类号： B64C11/06 , B24C11/00 , B64C11/30 , B64C11/38 , B64C11/44

摘要： A system (10) for controlling propeller blade pitch is disclosed. The system (10) comprises a transfer tube (18), wherein the transfer tube (18) defines an element of the rotatable portion (12) and wherein the transfer tube (18) is non-translating relative the rotatable (12) and non-rotatable portions (26). A transfer bearing (16) for providing hydraulic fluid to and interfacing with the transfer tube (18) is also used, wherein the transfer bearing (16) is located on the non-rotatable portion (26). The system further includes a pitch change actuator (22) and a mechanism form (74) for actuating the pitch change actuator (22), wherein the mechanism (74) is fluidically connected to and translatable relative to the transfer tube (18). A device for measuring blade angle of the propeller blade (120) is also provided, wherein the device is separate and distinct from the transfer tube (18).

2.

发明公开
VARIABLE PITCH COUNTERWEIGHTED PROPELLER SYSTEM WITH RELEASABLE HYDRAULIC PITCHLOCK 审中-公开
标题翻译：变桨距平衡式松脱的水力坡降固定术

公开(公告)号：EP1023219A4

公开(公告)日：2002-11-13

申请号：EP98953841

申请日：1998-10-21

申请人： UNITED TECHNOLOGIES CORP

发明人： CARVALHO PAUL A , PRUDEN ROBERT W

IPC分类号： B64C11/38 , B63H1/06 , B63H3/08 , B63H5/125 , B64C11/06 , B64C11/12 , B64C11/28 , B64C27/50 , B64C27/64 , F01D7/00 , F03B3/14 , F04D29/36

CPC分类号： B64C11/385

摘要： The hydraulic propeller system of the present invention has a central hub (14) including a stationary portion (28), and a rotatable portion (30). A plurality of propeller blades (12) are connected with the rotatable portion (30), wherein each of the plurality of propeller blades (12) has an adjustable pitch, and a counterweight (26) biasing the blades (12) in a first pitch direction . An actuating mechanism (16) is used for adjusting the pitch of each of the plurality of blades (12). A valve (56) for locking the propeller blades (12) at a last commanded pitch is further provided. At least the valve (56), the actuating mechanism (16) are located on, and rotatable with, the rotatable portion (30).