Title:
SCREW PUMP
Document Type and Number:
Japanese Patent JPS5912184
Kind Code:
A
Abstract:
An annular nonreturn valve is provided in a pump with a screw conveyor mounted at each end. This nonreturn valve seals the outlet end of the pump. It also makes it possible for the conveyed material to be discharged without deflection in the slug area. The pivotability of the sealing element is made possible by the fact that the screw conveyor shaft has a smaller diameter in the direction of conveying behind the annular nonreturn valve. An area with enlarged diameter of the screw conveyor shaft can be provided on a casing so that wear parts can be easily replaced.
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Inventors:
ARUFURETSUDO FUITSUSHIYAA
KURAUSU FURAIMUSU
ROORANTO GAARATSUHA
GERUHARUTO JIIFUERUTO
KURAUSU FURAIMUSU
ROORANTO GAARATSUHA
GERUHARUTO JIIFUERUTO
Application Number:
JP11575683A
Publication Date:
January 21, 1984
Filing Date:
June 27, 1983
Export Citation:
Assignee:
PETERS AG CLAUDIUS
International Classes:
B65G53/08; F04B19/12; B65G53/48; F04D3/02; F16K1/20; (IPC1-7): F04B19/12
Attorney, Agent or Firm:
Minoru Nakamura