(19)
(11) EP 1 239 152 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.01.2004 Bulletin 2004/01

(43) Date of publication A2:
11.09.2002 Bulletin 2002/37

(21) Application number: 02251514.2

(22) Date of filing: 05.03.2002
(51) International Patent Classification (IPC)7: F04B 17/03, F04B 49/20, F04C 15/00, F04D 13/06
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 08.03.2001 GB 0105641

(71) Applicant: Lucas Industries Limited
West Midlands B90 4LA (GB)

(72) Inventors:
  • Lloyd, Tim
    Broom, Warwickshire B50 4GZ (GB)
  • Alan-Jones, Keith
    Birmingham B23 7DE (GB)

(74) Representative: Tranter, Andrew David 
Barker Brettell 138 Hagley Road Edgbaston
Birmingham B16 9PW
Birmingham B16 9PW (GB)

   


(54) Electric motor driven hydraulic pump


(57) This invention relates to improvements in electric motor driven pumps, for example of the type used in hydraulic suspension systems for vehicles. In such a pump, the casing (3) of the motor is extended to include a chamber in which electronics can be housed. A lead-frame assembly (12) is described which retains and connects all the high power components. The casing may be split in order to define a pump rotor sub-assembly (1) and an electronics sub-assembly (2) which can be tested separately and then joined together by the use of simple interconnections.






Search report