Expansible chamber devices – With lubricating means – Piston has lubricant retaining or conducting means
Patent
1980-02-14
1984-06-05
Maslousky, Paul E.
Expansible chamber devices
With lubricating means
Piston has lubricant retaining or conducting means
91488, F01B 3110
Patent
active
044521278
ABSTRACT:
A cylindrical piston has a part-cylindrical outcut, which is slotted radially and contains a swingable pivot-member of at least part-cylindrical configuration borne in the outcut and pivoting therein under load. The mentioned outcut is formed partially around an axis which is normal to the longitudinal axis of the mentioned piston and extending through the longitudinal axis of the piston. A plurality of preferably part-annullarily formed grooves for the reception of pressure fluid are provided preferably in said pivot-member in order to lubricate bearing portions of said member between two adjacent grooves or recesses to assure a high pressure lubrication from both ends of the respective bearing portion. Efficiency and life time of said bearing portion is thereby increased and so is the bearing capability.
REFERENCES:
patent: 3106138 (1963-10-01), Thoma
patent: 3223046 (1965-12-01), Eickmann
patent: 3395948 (1968-08-01), Andrews
patent: 3960057 (1976-06-01), Kometani et al.
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