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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2017/166369
Kind Code:
A ventilation valve, comprising a cylindrical valve body (1), a gearbox (2), a plurality of fan-shaped vanes (3) and a drive device (4), the gearbox (2) being arranged in the center of the valve body (1), and a geared mechanism being provided inside the gearbox (2). The drive device (4), by means of a geared drive mechanism, causes the vanes (3) to rotate in a same direction, each around its own central shaft; the vanes (3) are arranged within the valve body (1) in a uniform distribution; the geared mechanism comprises a first central gear (23) and a second central gear (24) sleeved upon a same supporting shaft (25); between the first central gear (23) and the second central gear (24) are provided a plurality of gears, one each of which is arranged at that end of one of said central shafts which extends to within the gearbox (2), each of said gears engaging with both said first central gear (23) and said second central gear (24). Also arranged within the valve body (1) is one or a plurality of air flow meters (6), the distance between the central axis of each of said one or plurality of air flow meters and the central axis of the valve body being not equal. The present ventilation valve precisely controls air flow and is safe and reliable, while featuring improved geared mechanism security and reduced wear and tear, thus prolonging service life.

TANG, Guangye (2979 White Thorn Circle, Naperville, Illinois, 60564, US)
RUAN, Hongzheng (Apt. 502, No.29 Lane 288, Chengfeng Road,Pudong District, Shanghai 0, 201200, CN)
Application Number:
Publication Date:
December 14, 2017
Filing Date:
May 04, 2016
Export Citation:
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E3 GREEN TECHNOLOGY CO., LTD. (Block L, 5th Floor No.780 Cai Lun Road,China Pilot Free Trade Zone, Pudong New District, Shanghai 3, 201203, CN)
International Classes:
F16K1/18; F16K1/20; F16K31/53
Attorney, Agent or Firm:
WATSON & BAND LAW OFFICES (26th Fl, The Center 989 Changle Road, Shanghai 1, 200031, CN)
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