Rotary kinetic fluid motors or pumps – Pump having rotating inlet end or scoop immersed in liquid
Patent
1991-04-09
1992-08-04
Kwon, John T.
Rotary kinetic fluid motors or pumps
Pump having rotating inlet end or scoop immersed in liquid
415 89, 415177, 188264R, 310 62, 318254, F04D 114
Patent
active
051353539
ABSTRACT:
A variable pressure and variable flow rate pump in accordance with the invention includes a stationary pump housing (1), a rotating pump housing (10), rotatably mounted with respect to the stationary pump housing including a fluid receiving chamber (12) for receiving fluid to be pumped which is driven by a drive (11); a pitot probe (5) rotatably mounted in the stationary pump housing having a tip (5a) disposed in the fluid receiving chamber radially offset from an axis of rotation of the probe for receiving fluid from the fluid receiving chamber; a brake (15) for selectively braking a rotational speed of the probe to control the rotational speed of the probe independently of a rotational speed of the rotating pump housing to provide a fluid output from the output with a variable pressure and flow rate; a thermal insulator (44) mounted between the brake and the fluid receiving chamber for thermally insulating the fluid receiving chamber from heat generated by the brake; and a control (C) coupled to the brake for controlling activation of the brake to control a rate of rotation of the probe to control the pressure and flow rate of the fluid produced at the output.
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Weber Kent I. M.
Westhoff Paul E.
Kwon John T.
Sundstrand Corporation
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