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Patent Searching and Data


Title:
PUMP
Document Type and Number:
Japanese Patent JPH0828457
Kind Code:
A
Abstract:

PURPOSE: To provide circumferential widths to small clearances to be formed between respective sealing surfaces and respective flat surfaces in a pair of liners, so as to improve sealing performance of a sub-transfer chamber, by forming respective flat sealing surfaces having the circumferential widths on both side surfaces on the top of an impeller.

CONSTITUTION: When an impeller 20 is rotated clockwise, the volume is increased and the pressure is decreased as sub transfer chambers Y are moved to a suction port 5A side by taking a bulkhead 40 as a starting point, so as to suck an article to be transferred such as soybean milk from a suction port 5B. The volume of the sub transfer chamber Y is decreased, and the pressure is increased from the time when the top 25 of the impeller 20 on the upstream side in the rotational direction passes the bulkhead 40, so as to discharge the article to be transferred from a discharging port 5B. In this case, respective flat sealing surfaces 26, 27 respectively having the circumferential widths are formed on both side surfaces on the top 25 of the impeller 20. Thereby, the circumferential width is provided to first small-clearances U to be formed between respective sealing surfaces 26, 27 and respective flat surfaces 30, 31 in a pair of liners 28, 29, so as to improve sealing performance of the subtransfer chamber Y.


Inventors:
SUZUKI SHUTA
Application Number:
JP1994000161462
Publication Date:
January 30, 1996
Filing Date:
July 13, 1994
Export Citation:
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Assignee:
SUZUKI SHUTA
International Classes:
F04C2/00; F04C13/00; (IPC1-7): F04C13/00; F04C2/00
Attorney, Agent or Firm:
加藤 静富 (外1名)