Marine propulsion – Jet drive – Having means to increase fluid drive means efficiency
Patent
1978-07-14
1982-02-23
Blix, Trygve M.
Marine propulsion
Jet drive
Having means to increase fluid drive means efficiency
440 38, 60221, 417177, 23926519, B63H 1102
Patent
active
043167217
ABSTRACT:
The invention relates to a method for producing a thrust in manoeuvering engines for watercraft and a manoeuvering engine constructed for the same, whereby the method comprises the annular driving water jet supplied to the diffuser and enveloping a first suction water jet is fed to a second suction water jet supplied to the diffuser inner wall surface, while the manoeuvering engine is constructed in such a way that the rear part of the engine casing is provided with an inlet port having a smaller diameter than the outlet port and located in the vicinity of the outlet port of the front engine part, whereby for the optimum adaptation of the exit mixing jet velocity to the vehicle speed a water jet exit cross-section regulating device is provided.
REFERENCES:
patent: 2788635 (1957-04-01), Ford
patent: 3163980 (1965-01-01), Turner
patent: 3315940 (1967-04-01), Hordley
patent: 3358453 (1967-12-01), Swet
patent: 3448714 (1969-06-01), Brooks
patent: 3606586 (1971-09-01), Piet
patent: 3620183 (1971-11-01), Hull
patent: 3834626 (1974-09-01), Sevik
Petersen Fred
Weiss Friedrich
Blix Trygve M.
Jastram-Werke GmbH KG
Keen D. W.
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