Pumps – Three or more cylinders arranged in parallel – radial – or... – Motor driven
Patent
1984-12-03
1986-12-02
Freeh, William L.
Pumps
Three or more cylinders arranged in parallel, radial, or...
Motor driven
F04B 1700, F04B 3500
Patent
active
046261770
ABSTRACT:
A hydraulic arrangement has a housing which includes a first space of a definite first pressure and a second space with a lower second pressure. A primary pump supplies fluid under the first pressure into the first space to open the entrance ports into cylinders, which contain pistons therein, whereby the pistons are forced partially out of the cylinders and into the mentioned second space. In the second space the pistons are moved inwardly into the cylinders by an eccentric cam ring to supply a flow of fluid of a fourth pressure out of the outlet of the arrangement's housing. In modified embodiments the arrangement is a pressure transmission, which takes in a third pressure to drive a motor in the arrangement which in turn drives the shaft with the eccentric cam and the unit then exits the fourth pressure, which might be a very high pressure of up to more than ten thousand pounds per square inch. Still other embodiments show in several modifications a device to reciprocate or oscillate exterior linear or rotary motors either permanently or stepwise in predetermined cycles. Working actions of machines or vehicles can so be driven and controlled by the arrangement without additional control facilities, when so desired.
REFERENCES:
patent: 2394285 (1946-02-01), Bevins
patent: 2485753 (1949-10-01), Lefler
patent: 2762307 (1956-09-01), Orloff
patent: 2845030 (1958-07-01), LeFobure et al.
patent: 2941475 (1960-06-01), Blair
patent: 3133503 (1964-05-01), Sheler
patent: 3614267 (1971-10-01), Schultz
patent: 3874271 (1975-04-01), Eickmann
patent: 4072445 (1978-02-01), Hay
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