Hydrodynamic machine

Details Hydrodynamic machine Hydrodynamic machine

2011-07-26

2011-07-26

Lopez, F. Daniel (Department: 3745)

Power plants

Pressure fluid source and motor

Coaxial impeller and turbine unit

C060S357000

Reexamination Certificate

active

07984610

ABSTRACT:
The present invention relates to a hydrodynamic machine, especially a hydrodynamic retarder, including a bladed primary wheel and a bladed secondary wheel which are arranged opposite of each other axially with respect to their blade configurations such that they jointly form a working chamber. The working chamber can be filled with a working medium for one operating state in order to transmit torque from the primary wheel to the secondary wheel by means of a circulatory flow of the working medium. The working chamber can be emptied of the working medium for a non-operating state in order to prevent a transmission of torque from the primary wheel to the secondary wheel. A suction apparatus is connected with a fluidic connection to the working chamber in order to suck off working medium and/or air from the working chamber for forming a negative pressure in the working chamber in the non-operating state.

REFERENCES:
patent: 3478516 (1969-11-01), Bonsch et al.
patent: 3547231 (1970-12-01), Braun
patent: 4073139 (1978-02-01), Armasow et al.
patent: 512452 (1930-11-01), None
patent: 677160 (1939-06-01), None
patent: 2614476 (1977-10-01), None
patent: 29903829 (2000-08-01), None
patent: 102 42 736 (2004-03-01), None

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