发明授权
US08579627B2 Method and a device for controlling the feed of a combustible gas to a burner apparatus
有权
用于控制可燃气体进入燃烧器装置的方法和装置
- 专利标题: Method and a device for controlling the feed of a combustible gas to a burner apparatus
- 专利标题(中): 用于控制可燃气体进入燃烧器装置的方法和装置
-
申请号: US12921836申请日: 2009-03-04
-
公开(公告)号: US08579627B2公开(公告)日: 2013-11-12
- 发明人: Stefano Zanella
- 申请人: Stefano Zanella
- 申请人地址: IT Padua
- 专利权人: Sit la Precisa S.p.A. con Socio Unico
- 当前专利权人: Sit la Precisa S.p.A. con Socio Unico
- 当前专利权人地址: IT Padua
- 代理机构: Volpe And Koenig, P.C.
- 优先权: ITPD2008A0088 20080319
- 国际申请: PCT/EP2009/052550 WO 20090304
- 国际公布: WO2009/115411 WO 20090924
- 主分类号: F23N1/00
- IPC分类号: F23N1/00 ; F23N5/00
摘要:
A method is provided for controlling the feed of a combustible gas by a valve device placed in a feed pipe which has a gas inlet section and a gas outlet section. The device includes a valve seat in the pipe associated with a membrane-operated plug and a device for returning the plug to a position in which the valve seat is shut off. The method includes the steps of creating a pressure difference in a section of the pipe downstream of the plug with respect to the direction of flow, by a constriction in the pipe having a predetermined cross section, the pressure difference being defined by a first pressure upstream of the constriction and a second pressure downstream of the constriction; collecting the signal formed by the second pressure downstream of the constriction and making the second pressure act on the side of the membrane opposite that on which the first pressure acts; and generating a regulatable load on the membrane of the membrane operating system.