Pumps – Three or more cylinders arranged in parallel – radial – or... – Radial cylinders
Patent
1990-01-18
1991-07-23
Smith, Leonard E.
Pumps
Three or more cylinders arranged in parallel, radial, or...
Radial cylinders
417266, 417DIG1, 92 72, 921701, F04B 104
Patent
active
050339400
ABSTRACT:
The compressor comprises at least one high-pressure cylinder and piston unit having a piston which is guided in a cylinder liner and which is coupled with a crankshaft by way of a connecting element guided in the cylinder casing along the longitudinal axis of the cylinder. The piston is coupled with the connecting element by way of a mounting permitting movements of the connecting element relatively to the piston transversely of the longitudinal axis. Guidance of the piston is achieved without affect from oscillations of the connecting. The piston cooperates with the liner to bound a lubricant-free annular gap open over the whole longitudinal portion common to the liner and the piston. A dry gap ring seal can therefore be provided between the piston and the liner and ensures that the compression chamber remains seal tight even at pressures of above 60 bar. Preferably, the piston and the cylinder liner are each made of wear-resistant metal or ceramic material.
REFERENCES:
patent: 4366747 (1983-01-01), Falendysz et al.
patent: 4551074 (1985-11-01), Asaka et al.
patent: 4883409 (1989-11-01), Strohmeier et al.
Cavanaugh David L.
Smith Leonard E.
Sulzer Brothers Limited
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