US3776332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic speed checker and cooling means
Assignee: Individual
•
Filing: 1971-09-30
•
Granted: 1973-12-04
•
Expires: 1991-09-30
Abstract
Abstract A hydraulic turbo speed checker for use for example on a drive shaft of a road vehicle, comprising a bladed rotor rotatable within a bladed stator carried within a sealed casing connected to an adjacent sealed radiator unit. The radiator unit has an aperture therethrough to accommodate a shaft on which the rotor is mounted, said shaft projecting on either side of the checker for attachment to the drive shaft. The spaces between the blades of the stator lead to a manifold connected to the top of the radiator above the level of oil therein whilst the bottom of the radiator is connected to a central section adjacent the rotor shaft and upstream of the stator.
Inventors
- 👤 Assignies J D
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:01
CPC Classifications
B; B60; B60T; B60T1/00; B60T1/02; B60T1/08; F; F16; F16D; F16D57/00; F16D57/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
285 words
A hydraulic turbo-speed checker comprising a fixed fluid type housing having a centrifugal chamber, a rotor disposed in said centrifugal chamber and having a shaft extending through said housing and a plurality of radially outwardly directed vanes secured to said shaft which each of said vanes having an axially extending blade portion integral with the outer end of each vane, said housing having a plurality of radially inwardly directed blades disposed adjacent said axially extending blades, manifold means in said housing adjacent said blades and disposed in fluid communication with the space between said blades, fixed fluid type radiator means surrounding said shaft in spaced axial relation to said housing, fan means secured to said shaft intermediate said housing and said radiator means, first passage means connecting said manifold means to the upper portion of said radiator means at a point above the normal hydraulic fluid level in said radiator means, second passage means connecting said radiator means at a point below said level to said centriFugal chamber adjacent the root end of said vanes, first valve means controlling the flow of hydraulic fluid through said second passage means, third passage means connecting said upper portion of said radiator means to said centrifugal chamber adjacent the root end of said vanes and second valve means controlling the flow of air through said third passage means, said first valve means comprises an annular hub secured to said housing and surrounding said shaft adjacent said vanes, a portion of said housing spaced radially outwardly from said hub adjacent the root end of said vanes and an annular valve member slidably mounted on said hub for movement into and out of engagement with said portion of said housing.
Claim 2
Dependent Claim
285 words
A hydraulic turbo-speed checker comprising a fixed fluid type housing having a centrifugal chamber, a rotor disposed in said centrifugal chamber and having a shaft extending through said housing and a plurality of radially outwardly directed vanes secured to said shaft which each of said vanes having an axially extending blade portion integral with the outer end of each vane, said housing having a plurality of radially inwardly directed blades disposed adjacent said axially extending blades, manifold means in said housing adjacent said blades and disposed in fluid communication with the space between said blades, fixed fluid type radiator means surrounding said shaft in spaced axial relation to said housing, fan means secured to said shaft intermediate said housing and said radiator means, first passage means connecting said manifold means to the upper portion of said radiator means at a point above the normal hydraulic fluid level in said radiator means, second passage means connecting said radiator means at a point below said level to said centriFugal chamber adjacent the root end of said vanes, first valve means controlling the flow of hydraulic fluid through said second passage means, third passage means connecting said upper portion of said radiator means to said centrifugal chamber adjacent the root end of said vanes and second valve means controlling the flow of air through said third passage means, said first valve means comprises an annular hub secured to said housing and surrounding said shaft adjacent said vanes, a portion of said housing spaced radially outwardly from said hub adjacent the root end of said vanes and an annular valve member slidably mounted on said hub for movement into and out of engagement with said portion of said housing.
Claim 3
Dependent Claim
56 words
A hydraulic turbo-speed checker as set forth in claim 1 wherein said second valve means is comprised of a spool valve extending through said housing and intersecting said third passage means and shift means secured to the end of said spool valve within said housing for shifting said valve member of said said second valve means.
Claim 4
Dependent Claim
65 words
A hydraulic turbo-speed checker as set forth in claim 2 wherein said valve member is provided with an annular groove and said shifting means is comprised of a fork extending into said annular groove with axial play therein, first spring means normally biasing said first valve means to the closed position and second spring means normally biasing said second valve means to said open position.
Claim 5
Dependent Claim
34 words
A hydraulic turbo-speed checker as set forth in claim 3 wherein said third passage means includes a bore extending through said hub and having an aperture disposed adjacent the wood portion of said vanes.
References Cited (Backward Citations)
US3108660A
Cited
US3407908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |