Wear resistant port plate for a fluid transfer device

(19)

(11)

EP 1 748 187 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	10.10.2007 Bulletin 2007/41

(43)	Date of publication A2:
	31.01.2007 Bulletin 2007/05

(21)	Application number: 06117743.2

(22)	Date of filing: 24.07.2006

(51)

International Patent Classification (IPC):

F04B 1/20^(2006.01)

F03C 1/06^(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:

26.07.2005 US 188651

(71)	Applicant: Honeywell International Inc.
	Morristown, New Jersey 07962 (US)

(72)	Inventors:
	Sund, Steven E. Ogdensburg, MA 07439 (US) Guiheen, James V. Madison, NJ 07940 (US) Rateick, JR, Richard G. South Bend, IN 46637 (US) Gasdaska, Charles J Shrewsbury, MA 01545 (US)

(74)	Representative: Haley, Stephen
	Gill Jennings & Every LLP Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)

(54)	Wear resistant port plate for a fluid transfer device

(57) In a fluid transfer device (10) that includes a housing (12), a rotor (16) rotatably mounted in the housing (12) and having a bore (24) and at least one piston (30) slidingly mounted in the bore (24), a port plate (42) that includes a body portion (44) mountable in the housing (12) and formed from a first material and a wear layer (56) formed of a second material, different from the first material, attached to the body portion (44) and adapted to contact the rotor (16). Also a fluid transfer device (10) including such a port plate (42).

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