Rotary expansible chamber devices – With changeable working chamber magnitude – Cylinder or cylinder portion moved linearly and radially
Reexamination Certificate
2000-02-01
2001-09-04
Freay, Charles G. (Department: 3746)
Rotary expansible chamber devices
With changeable working chamber magnitude
Cylinder or cylinder portion moved linearly and radially
C418S137000, C418S241000, C418S138000
Reexamination Certificate
active
06283736
ABSTRACT:
DESCRIPTION
TECHNICAL DOMAIN
The present invention seeks to solve the difficulties one has to face in the application of hydrostatic pumps or engines with infinitely variable debit or impulse so that this type of equipment may be simpler in its functioning and in its making, resulting from it a lower cost on the one hand and the ability to widen its application to infinitely variable transmissions of speed and impulse.
PREVIOUS TECHNIQUE
The current technique of these equipments is based on an identical technique to the functioning of the alternative explosion engines using pistons, cylinders and valves.
The variation of the amplitude of depressions and impulses is obtained by varying the amplitude of the pistons course; for example, when the cylinders are grouped in a circle and in a parallel way, the variation of the amplitude of the pistons course is obtained by the variable inclination of a plate which acts in the pistons by their base, and with their return by means of a spring.
A great inconvience of this process is the great force that is necessary to be applied so that one may obtain the variation of the plate amplitude, which depends on the work pressure of the pistons.
EXPLANATION OF THE INVENTION
One goal of the invention is to solve this problem, i.e., to obtain a simple system of variation of amplitude whose command does not require the application of a great strength and, therefore, it is not dependent of the work pressures of the fluid. The basic idea of the invention is, in a pump or engine of the rotative type, to interpose, between the fixed stator and the rotor, a second stator, whose symmetry axis gets decentralized in relation to the rotor axis, and to obtain the balance of the pressures or of the depressions on each side of the stator.
The figure of the drawing represents in section a pump or an engine of the rotative type in which the movable and radial elements of the rotor are, for example, cylinders (
5
).
REFERENCES:
patent: 2022207 (1935-11-01), Kratzer
patent: 2159941 (1939-05-01), Guinness
patent: 3143079 (1964-08-01), Carner
patent: 3572985 (1971-03-01), Runge
patent: 3807912 (1974-04-01), Keller
patent: 577016 (1933-05-01), None
patent: 40 14 636 A1 (1992-07-01), None
patent: 169836 (1921-10-01), None
patent: 846549 (1960-08-01), None
Baptista Fernando A.
Pereira Dias Baptista Joao M.
Freay Charles G.
Hayes Eric
Hoffman Wasson & Gitler
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