QUICK-RELEASE VACUUM PUMP - KOREA PNEUMATIC SYS CO LTD

Title:

QUICK-RELEASE VACUUM PUMP

Document Type and Number:

WIPO Patent Application WO/2012/093777

Kind Code:

A3

Abstract:

The present invention pertains to a quick-release vacuum pump, which is designed to quickly release a vacuum and negative pressure formed by a device. The vacuum pump according to the present invention includes a release section and a filter material in addition to a pump section. The release section includes: a supporting pipe formed at the upper side of a casing suction hole; a skirt-shaped check valve for opening and closing the upper side of the supporting pipe by vertical movement due to air pressure; and a pressure chamber formed at an end of a path, which communicates with an inlet and passes through a valve skirt. The filter material is disposed between the suction hole and the supporting pipe. The filter material passes exhaust air, which is sucked in at the time of the pumping operation, to the upper side so as to filter the same, and is cleaned by pressurized air, which passes to the lower side via the supporting pipe at the time when the pumping operation stops. According to the present invention, the vacuum pump may be simply designed and implemented in comparison with conventional designs which depend on electronic mechanisms. In particular, the release of the vacuum is carried out in a short time. In addition, the cleaning of the filter material may be appropriately carried out even without any additional cleaning.

Inventors:

CHO HO-YOUNG (KR)

Application Number:

PCT/KR2011/009410

Publication Date:

September 07, 2012

Filing Date:

December 07, 2011

Export Citation:

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Assignee:

KOREA PNEUMATIC SYS CO LTD (KR)
CHO HO-YOUNG (KR)

International Classes:

F04D29/40; F04B37/16; F04B39/00; F04D19/04

Foreign References:

KR20030037280A	2003-05-14
JP2006342765A	2006-12-21
KR950005444Y1	1995-07-10
JP2009097403A	2009-05-07

Other References: