Line-contact-type spherical bearing for connecting piston to con

Details Line-contact-type spherical bearing for connecting piston to con Line-contact-type spherical bearing for connecting piston to con

1988-10-26

1990-03-06

Garrett, Robert E.

Expansible chamber devices

With lubricating means

Piston has lubricant retaining or conducting means

92159, 92187, 92219, 403125, 403127, 384245, 384610, F01B 902, F02B 7532

Patent

active

049055771

ABSTRACT:
A hydraulically-operated piston machine includes at least one cylinder and a piston axially movably guided in the cylinder. The piston is connected to a crankshaft or the like by means of a connecting rod. The connecting rod and the piston each have spherically-shaped bearing surfaces serving for connecting the connecting rod and the piston with each other in an articulated manner. The connecting rod defines at its end connected to the piston a radially outwardly facing spherical surface portion which is arranged concentrically with the spherical bearing surface of the connecting rod. The spherical surface portion rests against the surface of a recess defined in the piston, so that a hollow space is defined between the surface of the recess and the spherical surface portion. The piston defines a bore for effecting communication of fluids between the interior of the cylinder and the hollow space.

REFERENCES:
patent: 2926975 (1960-03-01), Karde et al.
patent: 2964365 (1960-12-01), Hausch
patent: 3173344 (1965-03-01), Mongitore
patent: 3589756 (1971-06-01), Pruvot
patent: 3667789 (1972-06-01), McNeely et al.
patent: 3762389 (1973-10-01), Malina
patent: 4039056 (1977-08-01), Zankl
patent: 4073220 (1978-02-01), Guenther
patent: 4207779 (1980-06-01), Papst
patent: 4373428 (1983-02-01), Fricke
patent: 4690038 (1987-09-01), Klie

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