Title:
A PLUG VALVE WITH ADJUSTABLE RELATIVE ACTUATION POSITIONS FOR CONTROLLING FLOW RATE BY MEANS OF PLUG AXIAL MOVEMENT
Document Type and Number:
WIPO Patent Application WO/2019/029545
Kind Code:
A1
Abstract:
A plug valve with adjustable relative actuation positions for controlling a flow rate by means of plug axial movement comprises: a power disk (1), a bearing (2), an inner spline (3), an outer spline (4), a valve stem (5), a pushing block (6), a pushing fork (7), a plug body (8), and a valve body (10). The plug body (8), the valve stem (5), the pushing block (6), and the outer spline (4) are integrally formed, and are in spline connection with the power disk (1) and the inner spline (3). The plug body (8) has a shaped through hole (9) in which a left portion thereof is narrow, and a right portion thereof is wide. The valve body has a radial valve through hole (11), and the valve through hole (11) corresponds to the plug shaped through hole (9) provided at the same axial position segment, so as to form an actuating member for controlling actuation of a passageway. The pushing fork (7) is controlled to move right or left in an axial direction in order to drive the rotating pushing block (6), the valve stem (5), and the plug body (8) to move right or left.
Inventors:
LUO CAN (CN)
Application Number:
PCT/CN2018/099267
Publication Date:
February 14, 2019
Filing Date:
August 07, 2018
Export Citation:
Assignee:
LUO CAN (CN)
International Classes:
F16K11/085; F16K5/04
Domestic Patent References:
| WO2012112562A2 | 2012-08-23 |
Foreign References:
| CN201437851U | 2010-04-14 | |||
| CN201916517U | 2011-08-03 | |||
| CN2054106U | 1990-03-07 | |||
| RU2179678C2 | 2002-02-20 |
Other References:
See also references of EP 3667137A4
Attorney, Agent or Firm:
KUNMING XIANGHE INTELLECTUAL PROPERTY AGENCY LIMITED (CN)
Download PDF: