(19)
(11) EP 1 091 119 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.12.2001 Bulletin 2001/50

(43) Date of publication A2:
11.04.2001 Bulletin 2001/15

(21) Application number: 00308801.0

(22) Date of filing: 05.10.2000
(51) International Patent Classification (IPC)7: F04B 1/16, F04B 1/14, F04B 1/28
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 09.10.1999 GB 9923822

(71) Applicant: Delphi Technologies, Inc.
Troy, MI 48007 (US)

(72) Inventor:
  • Buckley, Paul
    Rainham, Kent ME8 9ES (GB)

(74) Representative: Pople, Joanne Selina 
Marks & Clerk, Alpha Tower, Suffolk Street
Queensway, Birmingham B1 1TT
Queensway, Birmingham B1 1TT (GB)

   


(54) Swash plate tyre pump


(57) A pump comprises a shaft (4), two opposed swash plates (2,3) carried by the shaft (4), and at least one plunger (9, 10, 11, 12) disposed between the swash plates (2, 3). The swash plates (2, 3) are rotatable with the shaft (4) about a longitudinal axis of the shaft (4) for driving the or each plunger (9, 10, 11, 12), the arrangement being such that forces exerted on the swash plates (2, 3) by the or each plunger (9, 10, 11, 12) during operation of the pump are mutually opposed so as to reduce the net axial force on the shaft (4).






Search report