(19)
(11) EP 1 775 468 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.03.2009 Bulletin 2009/10

(43) Date of publication A2:
18.04.2007 Bulletin 2007/16

(21) Application number: 06255283.1

(22) Date of filing: 13.10.2006
(51) International Patent Classification (IPC): 
F04B 9/12(2006.01)
F04B 7/02(2006.01)
 F04B 5/02(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 RS

(30) Priority: 14.10.2005 GB 0520879

(71) Applicant: Stamper, Eric Swan
Aberdeen Aberdeen City AB21 0DP (GB)

(72) Inventor:
  • Stamper, Eric Swan
    Aberdeen Aberdeen City AB21 0DP (GB)

(74) Representative: Fulton, David James et al
Murgitroyd & Company
165-169 Scotland Street Glasgow G5 8PL
165-169 Scotland Street Glasgow G5 8PL (GB)

   


(54) A valve assembly


(57) There is disclosed a valve assembly for a pump such as a dual-piston reciprocating pump, and to such a pump incorporating a valve assembly.
In one embodiment, a valve assembly (10) is disclosed which includes a valve main body (98); a valve member (100) mounted for movement within the valve main body, to control the supply of an actuating fluid to a pump (10); a main valve inlet (81) formed in the valve main body, through which actuating fluid is supplied to the valve main body; and an inlet valve (83) for controlling the flow of actuating fluid through the main valve inlet into the valve main body. Providing a valve assembly with such an inlet valve facilitates accurate control of the flow of actuating fluid into the valve assembly. This in turn facilitates control of the flow of actuating fluid to a pump, thereby permitting one or more operating characteristics of the pump to be varied.







Search report