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Patent Searching and Data


Title:
SINGLE THREAD PUMP
Document Type and Number:
Japanese Patent JP2000320452
Kind Code:
A
Abstract:

To miniaturize a single thread pump, simplify the configuration, prevent wear of a rotor and a stator, and to maintain highly precise and stable performance.

Crankshafts 4a, 4b are attached to both ends of a rotor 3, while the crankshafts 4a, 4b are held by bearing 7a, 7b. By transmitting the rotating power to the crank shaft 4b via a coupling 9 arranged outside a stator 2, the rotor 3 makes eccentric rotation. The inside of the stator 2 is made of a metallic material. Suction ports 5, 6 are attached to the both end side surfaces of the stator 2 perpendicular to the side surfaces, in order to suck or discharge the fluid therefrom.


Inventors:
Isaka, Hiroshi
Application Number:
JP1999000132948
Publication Date:
November 21, 2000
Filing Date:
May 13, 1999
Export Citation:
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Assignee:
SONY CORP
International Classes:
F04B19/12; (IPC1-7): F04B19/12