Expansible chamber devices – Piston – Open-ended hollow skirt type
Patent
1986-02-13
1987-01-27
Ostrager, Allen M.
Expansible chamber devices
Piston
Open-ended hollow skirt type
F16J 104
Patent
active
046387250
ABSTRACT:
In a light plunger piston for internal combustion engines, in order further to save weight and to achieve an elastic running behaviour, the piston skirt is reduced to three relatively narrow guide plates. The guide plates are attached through longitudinal ribs to gudgeon pin bushes suspended freely from the piston crown. On the thrust side of the piston there are two of the three guide plates which extend, seen from a 45 degrees diagonal plane between gudgeon pin axial plane and connecting rod oscillation plane, through about 15-25 degrees to each of the two sides. On the counter-thrust side only one pressure plate is provided which extends circumferentially over about 50 degrees. There is preferably no direct connection between the guide plates and the lowermost ring land.
REFERENCES:
patent: 4161165 (1979-07-01), Belush et al.
Ripberger Emil
Stuska Gotthard
Mahle GmbH
Ostrager Allen M.
Wray James C.
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