Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Turbine regenerative pump
Patent
1995-02-15
1996-05-14
Kwon, John T.
Rotary kinetic fluid motors or pumps
With means for re-entry of working fluid to blade set
Turbine regenerative pump
415 555, F01D 300
Patent
active
055162592
ABSTRACT:
Aggregate for feeding fuel from a supply tank to an internal combustion engine of a motor vehicle has a feeding pump formed as a flow pump and including a disc-shaped rotatable impeller. A hydraulic buffer is formed between the impeller and the end walls of the pump chamber and includes recesses provided in a structure selected from the axial end surface of the impeller and the end walls of the pump chamber, so that the recesses are fillable with fuel during operation of the feeding pump and form the hydraulic buffer which acts in an axial direction of the impeller and stabilizes the impeller. An outer ring which connects the vanes of the impeller at their radially outer ends and limits the impeller in a peripheral direction. The recesses are arranged in a region of the outer ring.
REFERENCES:
patent: 4854830 (1989-08-01), Kozawa et al.
patent: 4923365 (1990-05-01), Rolwage
patent: 5328325 (1994-07-01), Strohl et al.
patent: 5378125 (1995-01-01), Frank et al.
patent: 5409357 (1995-04-01), Yu et al.
patent: 5415521 (1995-05-01), Hufnagel et al.
Niederkofler Michael
Rose Jochen
Strohl Willi
Kwon John T.
Robert & Bosch GmbH
Striker Michael J.
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