US1408737A - Centrifugal propeller - Google Patents
Centrifugal propeller Download PDFInfo
- Publication number
- US1408737A US1408737A US393676A US39367620A US1408737A US 1408737 A US1408737 A US 1408737A US 393676 A US393676 A US 393676A US 39367620 A US39367620 A US 39367620A US 1408737 A US1408737 A US 1408737A
- Authority
- US
- United States
- Prior art keywords
- chambers
- wheel
- turbine
- propeller
- centrifugal
- 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 - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
- B63H2011/088—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type using shear forces, e.g. disc pumps or Tesla pumps
Description
H. HERNU.'
CENTRIFUGAL PROPELLER.
VAPPLICATION FILED JULY-2,1920.
1,408,737. Patented Mar. 7, 1922.
Fug. l. :FLg 21 WiTI IZSSQS kw terior by one or UNITED STATES HENRI HERNU, 0F MEUDON, FRANCE.
GENTRIFUGAL PROPELLER.
Application filed July 2,
To all 107i 0m it may concern:
Be it known that I, HENRI Hnnnu, a citizen of the French Republic, residing at Meudon, Seine-et-Oise, in the French P.epublic, have invented new and useful Improvements in Centrifugal Propellers, of which the following is a specification. This invention relates to centrifugal propellers of that class in which a propeller wheel can be laterally displaced so as to become operative in either one or other chamber of .a divided casing and thereby discharge a current of water in the one or other direction as may be necessary for the direction of a boat. It is the object of this invention to provide a closed turbine casing having outer tubular peripheral chambers extending from a restricted annular portion intermediate said chambers and a laterally displaceable turbine wheel with tapering blades shaped to fit said annular portion, a central inlet leading to both'sides of the wheel and lateral outlets in opposite directions from the tubular chambers.
In the drawings, Figure 1 shows the apparatus in vertical section in a plane perpendicular to the axis of the turbine and showing the blades and the inlet and outlet ports; Fig. 2 is a transverse section in a plane at right angles to that in Fig. 1.
As will be seen from Figs. 1 and 2, the apparatus comprises an inlet A which brings the water to either side and to the center of a turbine wheel B which latter is given a high speed and acts, under centrifugal force, on the water and drives it towards the exother of the chambers C or D.
The apparatus permits of reversing or Specification of Letters Patent.
Patented Mar. 7, 1922.
1920. Serial No. 393,676.
suppressing the propulsion without changing the speed or direction apparatus.
F or this pupose the turbine B is dis placeable laterally in a two-chambered casing forming two adjoining chambers C and D whose outlets E and F respectively are directed, one towards the rear and the other towards the front of the vessel. The chambers are separated by a cylindrical portion G of the external diameter of the turbine wheel B and of the same width.
It will be readily understood that by displacing the turbine wheel laterally opposite the chamber C, the forward movement is obtained the discharge taking place towards the rear through the outlet E. In the position shown at Fig. 2 there is no moveof rotation of the ment of the vessel the turbine being blocked by the cylindrical portion. With the wheel in the position within the chamber D, reverse travel is obtained, the discharge taking place through the port F towards the front of the boat.
I claim:
A centrifugal propeller for boats of that class in which a propeller wheel can be displaced laterally so as to become operative in either one or other chamber of a divided casing, which consists in a closed turbine casing having outer tubular periphera chambers extending from a restricted annular portion intermediate said chambers, a laterally displaceable turbine wheel with tapering blades shaped to fit said annular portion, a central inlet leading to both sides of the wheel, and lateral outlets in opposite directions from the tubular chambers.
HENRI HERNU.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US393676A US1408737A (en) | 1920-07-02 | 1920-07-02 | Centrifugal propeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US393676A US1408737A (en) | 1920-07-02 | 1920-07-02 | Centrifugal propeller |
Publications (1)
Publication Number | Publication Date |
---|---|
US1408737A true US1408737A (en) | 1922-03-07 |
Family
ID=23555761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US393676A Expired - Lifetime US1408737A (en) | 1920-07-02 | 1920-07-02 | Centrifugal propeller |
Country Status (1)
Country | Link |
---|---|
US (1) | US1408737A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3433165A (en) * | 1967-07-18 | 1969-03-18 | Ckd Blansko Narodni Podnik | Hydraulic apparatus |
-
1920
- 1920-07-02 US US393676A patent/US1408737A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3433165A (en) * | 1967-07-18 | 1969-03-18 | Ckd Blansko Narodni Podnik | Hydraulic apparatus |
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