Motors: expansible chamber type – Three or more cylinders arranged in parallel radial or... – Cylinders parallel to rotation axis
Reexamination Certificate
2006-01-10
2006-01-10
Koczo, Jr., Michael (Department: 3746)
Motors: expansible chamber type
Three or more cylinders arranged in parallel radial or...
Cylinders parallel to rotation axis
C092S071000, C092S153000, C092S169100, C184S006170, C184S018000
Reexamination Certificate
active
06983680
ABSTRACT:
Smaller and lighter hydraulic pump/motors provide remarkably improved volumetric efficiency with pistons having body portions substantially as long as the axial length of the respective cylinders in which they reciprocate. A plurality of respective lubricating channels form a single, continuous lubricating passageway entirely within the cylinder block and not connected by either fluid “input” or fluid “output” passageways, being replenished solely by a minimal flow of fluid to and from the valve end of each cylinder and passing between each respective cylindrical wall of each cylinder and the axial cylindrical body of each respective piston. Several embodiments are disclosed in combination with various spring-biased hold-down assemblies. The preferred embodiment included a fixed cylinder block, a roller bearing mounting between the wobbler and rotor of a split-swash plate, with piston shoes contacting the wobbler directly without any intermediary apparatus.
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Gleasman Keith E.
Gleasman Vernon E.
Wrona Matthew R.
Brown & Michaels PC
Koczo, Jr. Michael
Polster Morton A.
Torvec Inc.
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