(19)
(11) EP 1 640 664 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.07.2006 Bulletin 2006/28

(43) Date of publication A2:
29.03.2006 Bulletin 2006/13

(21) Application number: 05255503.4

(22) Date of filing: 08.09.2005
(51) International Patent Classification (IPC): 
B81B 7/02(2006.01)
F23N 1/00(2006.01)
 F15C 5/00(2006.01)
F24C 3/12(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK YU

(30) Priority: 16.09.2004 US 942717

(71) Applicant: GENERAL ELECTRIC COMPANY
Schenectady, New York 12345 (US)

(72) Inventors:
  • Saia, Richard Joseph
    Niskayuna New York 12309 (US)
  • Najewicz, David Joseph
    Prospect Kentucky 40059 (US)
  • Seeley, Charles Erklin
    Niskayuna New York 12309 (US)
  • Wu, Guanghua
    Dublin California 94568 (US)
  • Knobloch, Aaron Jay
    Rexford New York 12148 (US)

(74) Representative: Pedder, James Cuthbert 
London Patent Operation, General Electric International, Inc., 15 John Adam Street
London WC2N 6LU
London WC2N 6LU (GB)

   


(54) Control valve assembly for controlling gas flow in gas combustion systems


(57) A control valve assembly (22) includes an inlet (16) for receiving a gas flow and an outlet (20) for providing the gas flow to a gas burner (18). The assembly (22) also includes a positive-shutoff valve (24) for interrupting the gas flow from the inlet (16). A micro electromechanical system (MEMS) valve (26) is coupled in series to the positive-shutoff valve (24) between the inlet (16) and the outlet (20) for regulating the gas flow from the inlet (16) to the outlet (20).







Search report