Patent US3661057A successfully refreshed from Google Patents.
US3661057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radial-piston multiple-action hydraulic motor
Assignee: Individual
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Filing: 1970-05-11
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Granted: 1972-05-09
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Expires: 1990-05-11
Abstract
Abstract A radial-piston, multiple-action hydraulic motor comprises a casing in which a rotor with an even number of rows of radially arranged pistons is rotatable, the casing having guides with profiles containing noncontrolled and controlled sections. The pistons of one half of the rows interact first with the noncontrolled sections then with the controlled sections and the pistons of the second half of the rows interact first with the controlled sections and then with the non-controlled sections of the profiles. A journal-type distributor is installed in the rotor and has at least two coaxial journals with channels for distributing working fluid and controlling the displacement volume of the hydraulic motor by turning synchronously in opposite directions relative to their axis, the distributing channels of each journal communicating hydraulically with one half of the rows of the pistons.
Inventors
- 👤 Anatoly Yakovlevich Rogov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:17
CPC Classifications
F; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/0447; F03C1/0466; F03C1/0403; F03C1/0409; F03C1/22; F03C1/24; F03C1/2407; F03C1/2423; F03C1/2438
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
191 words
A radial-piston multiple-action hydraulic motor comprising: a casing; a rotor with an even number of rows of radially arranged pistons installed in cylinders provided in said casing; guides in said casing each having profiles with noncontrolled and controlled sections, the pistons of one half of the rows interacting first with the noncontrolled sections then with the controlled sections and the pistons of the second half of the rows interacting first with the controlled sections and then with the noncontrolled sections of the profile; a journal-type distributor installed in said rotor and comprising at least two coaxial journals having channels for distributing working fluid to said cylinders, said distributing channels of each journal communicating hydraulically with the cylinders of one half of the rows of said pistons and means coupled to said journals to turn the same synchronously in opposite directions and alter the time of fluid feed into said cylinders relative to the position oF said pistons relative to said guides, whereby to control the stroke of said pistons for controlling the displacement volume of the hydraulic motor by turning of the journals synchronously in opposite directions relative to their axis.
Claim 2
Dependent Claim
191 words
A radial-piston multiple-action hydraulic motor comprising: a casing; a rotor with an even number of rows of radially arranged pistons installed in cylinders provided in said casing; guides in said casing each having profiles with noncontrolled and controlled sections, the pistons of one half of the rows interacting first with the noncontrolled sections then with the controlled sections and the pistons of the second half of the rows interacting first with the controlled sections and then with the noncontrolled sections of the profile; a journal-type distributor installed in said rotor and comprising at least two coaxial journals having channels for distributing working fluid to said cylinders, said distributing channels of each journal communicating hydraulically with the cylinders of one half of the rows of said pistons and means coupled to said journals to turn the same synchronously in opposite directions and alter the time of fluid feed into said cylinders relative to the position oF said pistons relative to said guides, whereby to control the stroke of said pistons for controlling the displacement volume of the hydraulic motor by turning of the journals synchronously in opposite directions relative to their axis.
Claim 3
Dependent Claim
44 words
A motor as claimed in claim 1, wherein said means to turn the journals synchronously comprises toothed quadrants secured to said journals, and counteropposed racks meshing with said journals and reciprocably displaceable to oscillate the racks and the journals to which they are secured.
Claim 4
Dependent Claim
23 words
A motor as claimed in claim 1, wherein said noncontrolled sections are of parabolic shape and said controlled sections are of spiral shape.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |