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EP0020249A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Injection pump for internal-combustion engine

Assignee: Everllence France SAS
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Filing: 1980-05-22
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Granted: —
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Expires: 2000-05-22
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Abstract

Abstract Translated from French Pompe d'injection permettant de réaliser une préinjection et une injection principale pendant la course de refoulement du piston (2). Pour effectuer la préinjection, le refoulement du combustible hors de la chambre d'admission (3) vers l'injecteur est interrompu lorsque l'arête supérieure (10) de la gorge circulaire (9) du piston (2), qui est en communication permanente avec la chambre (3), vient au niveau du bord inférieur des trous d'arrivée de combustible (14). Après la fermeture des trous (14) par le bord inférieur (11) de la gorge (9), lors de la course ascendante du piston (2), le refoulement du combustible vers l'injecteur reprend et la phase de l'injection principale commence. Cette phase est terminée lorsque la rampe hélicoïdale (7) vient en regard de l'orifice d'arrivée du combustible (4). Injection pump for pre-injection and main injection during the piston delivery stroke (2). To carry out the pre-injection, the delivery of the fuel out of the intake chamber (3) to the injector is interrupted when the upper edge (10) of the circular groove (9) of the piston (2), which is in communication permanent with the chamber (3), comes at the lower edge of the fuel inlet holes (14). After the holes (14) are closed by the lower edge (11) of the groove (9), during the upward stroke of the piston (2), the delivery of fuel to the injector resumes and the phase of the main injection start. This phase is completed when the helical ramp (7) comes opposite the fuel inlet orifice (4).

Inventors

  • 👤 Dirk Bastenhof
  • 👤 Roger Brisson
  • 👤 Claude Bonniot

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 21:09
CPC Classifications
F; F02; F02M; F02M45/00; F02M45/02; F02M45/04; F02M45/06; F02M45/066; F02M59/00; F02M59/20; F02M59/22

Claims Analysis

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References Cited (Backward Citations)

DE572711C Cited
DE585014C Cited
DE689545C Cited
FR838688A Cited
US2237347A Cited
DE923400C Cited
GB571485A Cited
GB641575A Cited
FR1037219A Cited
US2713310A Cited
US2810375A Cited
US3792692A Cited
DE2501764A1 Cited

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