(19)
(11) EP 0 350 796 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.07.1990 Bulletin 1990/30

(43) Date of publication A2:
17.01.1990 Bulletin 1990/03

(21) Application number: 89112391.1

(22) Date of filing: 06.07.1989
(51) International Patent Classification (IPC)5: F01P 3/00, F01M 3/00, F04B 43/12, F16N 13/00
(84) Designated Contracting States:
DE ES FR IT

(30) Priority: 09.07.1988 JP 171291/88

(71) Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
Iwata-shi Shizuoka-ken, 438 (JP)

(72) Inventors:
  • Yokoyama, Yoshiharu
    Iwata-shi Shizuoka-ken (JP)
  • Akiyama, Shigeru
    Hamamatsu-shi Shizuoka-ken (JP)
  • Kitano, Kazuhito
    Iwata-shi Shizuoka-ken (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)


(56) References cited: : 
   
       


    (54) Two-stroke gas engine


    (57) The present invention relates to a separate lubrication type engine and a lubricating oil feeding device comprising an oil pump (25) to supply oil from a lubricating oil container (46) to lubricating oil receiving portions of the engine, wherein said oil pump (25) discharges oil by squeezing a resilient tube (64) by means of a revolving squeezing means (60, 66) in contact with the resilient tube (64) and continuously driven by a drive means (54, 65).







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