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Title:
PUMP HAVING SPIRAL BLADES
Document Type and Number:
WIPO Patent Application WO/1992/015788
Kind Code:
A1
Abstract:
A vertical pump (1) having spiral blades (10, 11 and 12) fixed to the distal end of the main shaft (2) thereof. One or more spiral blades (10, 11 and 12) are arranged to be well-balanced with respect to said main shaft (2) of the pump, whereby a flow passage between spiral blades is wide, of no-closure type, and thus makes the pump particularly appropriate to sewage disposal.

Inventors:
ISHIGAKI EIICHI (JP)
OURA KAZUMITSU (JP)
HONDA TAKAHARU (JP)
Application Number:
PCT/JP1991/000265
Publication Date:
September 17, 1992
Filing Date:
February 28, 1991
Export Citation:
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Assignee:
ISHIGAKI MECH IND (JP)
International Classes:
F04D3/02; F04D7/04; F04D29/18; (IPC1-7): F04D1/04; F04D7/04; F04D13/00
Foreign References:
JPS63126588U1988-08-18
JPS328084Y11957-07-29
JPS495002U1974-01-17
JPS57181997A1982-11-09
Other References:
See also references of EP 0527227A4
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