FR725680A - Perfectionnements aux hélices à pas variable - Google Patents
Perfectionnements aux hélices à pas variableInfo
- Publication number
- FR725680A FR725680A FR725680DA FR725680A FR 725680 A FR725680 A FR 725680A FR 725680D A FR725680D A FR 725680DA FR 725680 A FR725680 A FR 725680A
- Authority
- FR
- France
- Prior art keywords
- variable pitch
- pitch propeller
- propeller
- variable
- propeller improvements
- 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
- B64C11/32—Blade pitch-changing mechanisms mechanical
- B64C11/34—Blade pitch-changing mechanisms mechanical automatic
- B64C11/343—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on the blades
-
- 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
- B64C11/32—Blade pitch-changing mechanisms mechanical
- B64C11/34—Blade pitch-changing mechanisms mechanical automatic
- B64C11/346—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on auxiliary masses or surfaces
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US491528A US1952066A (en) | 1930-10-27 | 1930-10-27 | Propeller |
Publications (1)
Publication Number | Publication Date |
---|---|
FR725680A true FR725680A (fr) | 1932-05-17 |
Family
ID=23952616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR725680D Expired FR725680A (fr) | 1930-10-27 | 1931-10-27 | Perfectionnements aux hélices à pas variable |
Country Status (4)
Country | Link |
---|---|
US (1) | US1952066A (fr) |
DE (1) | DE645921C (fr) |
FR (1) | FR725680A (fr) |
GB (1) | GB388479A (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2470560A (en) * | 1939-06-13 | 1949-05-17 | Walter S Hoover | Oppositely rotating propellers |
US2419787A (en) * | 1941-04-09 | 1947-04-29 | Muffly Glenn | Aircraft engine and propeller unit |
DE749870C (de) * | 1941-09-13 | 1944-12-06 | Einrichtung zum Verhindern der Eisbildung an einer Verstell-Luftschraube | |
US2468004A (en) * | 1944-04-01 | 1949-04-19 | Robert Brooks Keller | Automatic propeller pitch changing mechanism |
US2509096A (en) * | 1945-06-23 | 1950-05-23 | Continental Inc | Hub mounting for propellers on roadable airplanes |
US2594160A (en) * | 1946-05-17 | 1952-04-22 | Hansson Oscar | Variable pitch propeller with an axially movable hub |
CN110030156A (zh) * | 2017-09-25 | 2019-07-19 | 青岛兰道尔空气动力工程有限公司 | 具有配重装置的自动变桨系统 |
-
1930
- 1930-10-27 US US491528A patent/US1952066A/en not_active Expired - Lifetime
-
1931
- 1931-10-22 GB GB29352/31A patent/GB388479A/en not_active Expired
- 1931-10-27 DE DEE41968D patent/DE645921C/de not_active Expired
- 1931-10-27 FR FR725680D patent/FR725680A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB388479A (en) | 1933-03-02 |
DE645921C (de) | 1937-06-10 |
US1952066A (en) | 1934-03-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR725680A (fr) | Perfectionnements aux hélices à pas variable | |
FR705835A (fr) | Hélice à pas variable | |
FR740764A (fr) | Perfectionnements aux hélices à pas variable | |
FR689315A (fr) | Perfectionnements aux hélices à pas variable | |
FR725612A (fr) | Perfectionnements aux hélices à pas variable | |
FR722078A (fr) | Hélice à pas variable | |
FR798405A (fr) | Perfectionnements aux hélices à pas variable | |
FR684120A (fr) | Hélice à pas variant automatiquement | |
FR733739A (fr) | Hélice à pas variable | |
FR726263A (fr) | Hélice à pas variable | |
FR691776A (fr) | Hélice à pas variable | |
FR719933A (fr) | Hélice à pas variable | |
FR721479A (fr) | Hélice à pas variable | |
FR727446A (fr) | Hélice à pas variable | |
FR730561A (fr) | Perfectionnements aux hélices à pas variable | |
FR726762A (fr) | Perfectionnements aux hélices à pas variable | |
FR731851A (fr) | Perfectionnements aux hélices aériennes à pas réglable | |
FR739723A (fr) | Hélice à pas variable | |
FR710514A (fr) | Hélice à pas variable | |
FR732324A (fr) | Hélice à pas variable | |
FR671708A (fr) | Hélice à pas variable | |
FR30244E (fr) | Hélice à pas variable | |
FR591741A (fr) | Hélice à pas variable | |
FR688367A (fr) | Hélice tractive ou propulsive à pas variable | |
FR750454A (fr) | Perfectionnements aux hélices à pas variable |