GB724654A - Improved propeller pitch control - Google Patents
Improved propeller pitch controlInfo
- Publication number
- GB724654A GB724654A GB1305/53A GB130553A GB724654A GB 724654 A GB724654 A GB 724654A GB 1305/53 A GB1305/53 A GB 1305/53A GB 130553 A GB130553 A GB 130553A GB 724654 A GB724654 A GB 724654A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pitch
- low
- governor
- flight
- jan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic
- B64C11/42—Blade pitch-changing mechanisms fluid, e.g. hydraulic non-automatic
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
724,654. Variable - pitch propellers. GENERAL MOTORS CORPORATION. Jan. 16, 1953 [Jan. 16, 1952], No. 1305/53. Class 114. A low-pitch stop prevents the pitch falling below a predetermined amount when in flight but this stop can be overridden when'the aircraft is supported on a landing surface. A governor 120 controls solenoids actuating valve 6 and so adjusting pitch to maintain a speed. A speed responsive valve 7 controls a high and low pitch setting, but this is also moved by the cam 102 to maintain a minimum low-pitched position when in flight. A parallel linkage from the propeller blade opens the switch 104 to override the governor 120. When on the ground, however, the parallel switch 110 is closed, thus bringing solenoid 43 into circuit to actuate valve 6 and so further reduce the pitch, until the fluid pressures on piston 72 balance.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US724654XA | 1952-01-16 | 1952-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB724654A true GB724654A (en) | 1955-02-23 |
Family
ID=22107766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1305/53A Expired GB724654A (en) | 1952-01-16 | 1953-01-16 | Improved propeller pitch control |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB724654A (en) |
-
1953
- 1953-01-16 GB GB1305/53A patent/GB724654A/en not_active Expired
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