公开(公告)号：IT1134399B

公开(公告)日：1986-08-13

申请号：IT2614580

申请日：1980-11-21

Applicant: UNITED TECHNOLOGIES CORP

Inventor： JOHN PETER PATRICK ,  GOODMAN ROBERT BERNARD

IPC: G05D23/00 ,  F24F3/052 ,  G05D23/13 ,  G05D23/185 ,  G01K

公开(公告)号：ZA833968B

公开(公告)日：1984-02-29

申请号：ZA833968

申请日：1983-06-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HARNER KERMIT IVAN ,  JOHN PETER PATRICK ,  VOSSELER KENNETH FRANKLYN

IPC: F03D7/02 ,  F03D7/04 ,  F01D ,  F03B ,  F03D

Abstract: A blade feathering system for wind turbines includes a feather actuator (299), control means (330 and 335) operatively connected thereto and an adjustment means (340) operatively connected to the control means for selectively varying the rate of operation of the feather actuator for feathering the wind turbine blades (10 and 15) at a variable rate.

公开(公告)号：ZA8303968B

公开(公告)日：1984-02-29

申请号：ZA8303968

申请日：1983-06-01

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HARNER KERMIT IVAN ,  JOHN PETER PATRICK ,  VOSSELER KENNETH FRANKLYN

IPC: F03D7/04 ,  F03D7/02 ,  F01D ,  F03B ,  F03D

CPC classification number: F03D7/0224 ,  F05B2260/74 ,  Y02E10/723