(19)
(11) EP 0 210 957 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.11.1988 Bulletin 1988/47

(43) Date of publication A2:
04.02.1987 Bulletin 1987/06

(21) Application number: 86830153

(22) Date of filing: 06.06.1986
(84) Designated Contracting States:
DE FR GB

(30) Priority: 30.07.1985 IT 351485

(71) Applicant: Brighigna, Mario
 ()

(72) Inventor:
  • Brighigna, Mario
     ()

   


(54) A two-stage pumping element for a fuel injection pump, with mechanical governor


(57) The mechanically governed fuel injection pumping element disclosed is embodied with a piston (16) in two stages (1,2), and a barrel (15) incorporating a gallery (7) which inter- oonneats two pressure chambers (3,4) to the end of producing a dual injection when the assembly is reciprocated by a common drive component (17), thereby providing a more gradual rate of injection. In a preferred embodiment, the two stages (1, 2) are proportioned such as to dictate the quantity ratio between the two injections, and the interval of time separating them.







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