Title:
ELECTRICALLY DRIVEN VACUUM PUMP
Document Type and Number:
WIPO Patent Application WO/2015/060030
Kind Code:
A1
Abstract:
The electrically driven vacuum pump of one embodiment of the present invention comprises: a pump section for generating negative pressure by sucking and discharging fluid; a case for housing the pump section; and a lid member for closing the case. The lid member is provided with a silencer section which is a space formed within the lid member and which connects to the discharge opening of the pump section, the discharge opening discharging the fluid; a lid-member suction opening which sucks in the fluid; and a lid-member cylindrical section which is formed extending from a portion around the lid-member suction opening to the pump section side. The pump section is provided with a pump-section suction opening for sucking the fluid, which is sucked in at the lid-member suction opening, into a pump chamber; and a pump-section cylindrical section formed extending from a portion around the pump-section suction opening to the lid member side. The lid-member cylindrical section and the pump-section cylindrical section are fitted to each other.
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| JP3388558 | OILLESS SCROLL TYPE VACUUM PUMP |
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Inventors:
YAMANAKA SHOTA (JP)
MAKINO KATSUHIKO (JP)
SUGIMOTO ATSUSHI (JP)
MAKINO KATSUHIKO (JP)
SUGIMOTO ATSUSHI (JP)
Application Number:
PCT/JP2014/073781
Publication Date:
April 30, 2015
Filing Date:
September 09, 2014
Export Citation:
Assignee:
AISAN IND (JP)
International Classes:
F04C29/06; B60T17/00; F04C18/344; F04C25/02
Foreign References:
| US5004410A | 1991-04-02 | |||
| JPH11107963A | 1999-04-20 | |||
| JP2013528741A | 2013-07-11 |
Attorney, Agent or Firm:
COSMOS PATENT OFFICE (JP)
Patent business corporation cosmos patent firm (JP)
Patent business corporation cosmos patent firm (JP)
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