US3677277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechano-hydraulically operated governor
Assignee: Aisin Corp
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Filing: 1970-10-07
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Granted: 1972-07-18
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Expires: 1990-10-07
Abstract
Abstract A mechano-hydraulically operated governor is provided with a main body rigidly mounted on a rotational shaft and a supplemental control valve means operationally connected with the body. In the main body valve means are mounted on the shaft so as to be moved radially or axially relative thereto under the action of the centrifugal force generated by the rotation of the shaft. Hydraulic output governor pressure can be varied in a stepped mode for a continuously increased or decreased rotation of the shaft.
Inventors
- 👤 Koichiro Hirozawa
- 👤 Shigeo Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:43
CPC Classifications
G; G05; G05D; G05D13/00; F; F16; F16H; F16H61/00; F16H2710/00; F16H2710/16; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/108; Y10T137/1098; Y10T137/1135; Y10T137/1171
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
219 words
A mechano-hydraulically operated governor comprising a rotatable shaft, a main governor body fixedly mounted on the shaft, governor valve means slidably mounted in said main body, spring means for biasing the governor valve means in a predetermined direction, a line pressure supply source, a pressure controller for regulating line pressure to obtain a governor output pressure, said pressure controller having a stepped valve plunger slidably mounted in a housing, said stepped valve plunger having stepped collars with successively enlarged diameters provided thereon, first passage means communicating said main governor body with said pressure controller housing, said line pressure supply source being connected with said first passage means and with the largest of said collars of said valve plunger, a governor output pressure passage connected with the largest of said collars of said valve plunger, an exhaust passage formed in said pressure controller housing, said stepped collars connected with said first passage means respectively for controlling governor output pressure in response to the line pressure in said first passage means controlled by the governor valve means, said line pressure supply source being connected fluidically with the governor output passage, said stepped valve plunger Being movable in response to the pressure in said first passage means controlled by said governor valve means to regulate the pressure in said governor output passage.
Claim 2
Dependent Claim
219 words
A mechano-hydraulically operated governor comprising a rotatable shaft, a main governor body fixedly mounted on the shaft, governor valve means slidably mounted in said main body, spring means for biasing the governor valve means in a predetermined direction, a line pressure supply source, a pressure controller for regulating line pressure to obtain a governor output pressure, said pressure controller having a stepped valve plunger slidably mounted in a housing, said stepped valve plunger having stepped collars with successively enlarged diameters provided thereon, first passage means communicating said main governor body with said pressure controller housing, said line pressure supply source being connected with said first passage means and with the largest of said collars of said valve plunger, a governor output pressure passage connected with the largest of said collars of said valve plunger, an exhaust passage formed in said pressure controller housing, said stepped collars connected with said first passage means respectively for controlling governor output pressure in response to the line pressure in said first passage means controlled by the governor valve means, said line pressure supply source being connected fluidically with the governor output passage, said stepped valve plunger Being movable in response to the pressure in said first passage means controlled by said governor valve means to regulate the pressure in said governor output passage.
Claim 3
Dependent Claim
91 words
A mechano-hydraulically operated governor as set forth in claim 1 being characterized in that the main governor body is provided with ports directly connected with said first passage means respectively, said governor valve means being slidably mounted normal to the shaft, and the smallest one of said collars on said stepped valve plunger being fluidically connected with the passage connected with said line pressure supply source, said ports being progressively opened as the shaft speed increases to communicate line pressure with each stepped collar succesively to increase the governor output pressure.
Claim 4
Dependent Claim
50 words
A mechano-hydraulically operated governor as set forth in claim 2, being characterized in that the governor valve means is formed with parallel peripheral grooves and the main governor body is provided with spring biased ball detent means for engagement in said grooves to provide for stepped operation of the governor.
Claim 5
Dependent Claim
90 words
A mechano-hydraulically operated governor as set forth in claim 1 being characterized in that the main governor body is formed with ports directly connected with said respective first passage means, said slidable governor valve means being mounted for normal movement relative to the shaft and the smallest one of said collars is fluidically connected with the passage connected with said line pressure supply source, said ports being progressively closed as the shaft speed increases to block communication of line pressure with each collar to progressively decrease the governor output pressure.
Claim 6
Dependent Claim
52 words
A mechano-hydraulically operated governor as set forth in claim 4 being characterized in that the governor valve means is formed with parallel peripheral grooves and the main body is provided with spring biased ball detent means for engagement in any one of said grooves to provide for stepped operation of the governor.
Claim 7
Dependent Claim
71 words
A mechano-hydraulically operated governor as set forth in claim 1 being characterized in that the main governor body is formed with two compartments radially opposed to the shaft, a valve member provided in each respective compartment, spring means biasing each valve member radially inwardly and port means in each compartment, spring means biasing each valve member radially inwardly and port means in each compartment directly connected with a respective passage means.
Claim 8
Dependent Claim
21 words
A mechano-hydraulically operated governor as set forth in claim 6 being characterized in that said valve members are different in weight.
Claim 9
Dependent Claim
53 words
A mechano-hydraulically operated governor as set forth in claim 1 being characterized in that said pressure controller further comprises a spring biased slidable spool valve means adjacent said first mentioned stepped valve plunger, and second passage means operatively connecting said first mentioned stepped valve plunger and said spring biased slidable spool valve means.
Claim 10
Dependent Claim
76 words
A mechano-hydraulically operated governor as set forth in claim 1 being characterized in that said first passage means are formed in the shaft with said governor valve means being axially slidable relative to the main body, a hydraulically operating chamber formed by the main body, said governor valve means and said shaft for controlling the sliding movement of the governor valve means and a further passage in the shaft for supplying the chamber with hydraulic fluid.
Claim 11
Dependent Claim
47 words
A mechano-hydraulically operated governor as set forth in claim 1, further comprising a movable centrifugal mass member operatively connected between the shaft and the governor valve means, the governor valve means being axially slidable on the shaft, with said first passage means being formed in the shaft.
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |