Patent US2031594A successfully refreshed from Google Patents.
US3897167A
Expired / Lapsed
US
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Hydraulic machine
Assignee: Ateliers des Charmilles SA
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Filing: 1973-12-05
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Granted: 1975-07-29
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Expires: 1993-12-05
Abstract
Abstract The hydraulic machine comprises a turbine and a pump both shaped for the same direction of rotation. The turbine wheel and the pump wheel are keyed on a common shaft with their respective draft tubes disposed in opposite directions. A single spiral casing is connected to the distributor of the turbine and to the diffuser of the pump. Separating means are provided for separating the space in the spiral casing from the space in which the turbine rotates respectively from the space in which the pump rotates. The turbine wheel and the pump wheel are spaced from one another on the common shaft, one of these wheels being arranged substanially in the middle plane of the casing, the latter being connected to the other wheel by conduits for reversing the direction of the tangential component of flow of water the between the spiral casing and said other wheel.
Inventors
- 👤 Michel Fauconnet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:30
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/10; F03B3/106; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y02E60/00; Y02E60/16; Y10; Y10S; Y10S415/00; Y10S415/91
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
234 words
In a hydraulic machine, including a frame, a fixed element on said frame, a turbine and a pump each including a wheel, said turbine and pump both shaped for rotation in the same direction, a vertical shaft, said turbine wheel and the pump wheel each connected to said shaft, said turbine including a distributor, said pump including a diffuser, said turbine and pump each including a draft tube, said draft tubes disposed in opposite directions to one another, a single spiral casing connected to the distributor of the turbine and to the diffuser of the pump, valve means permitting the selective separation of the internal space of the spiral casing from the space in which the turbine rotates and the space in which the pump rotates, a bearing for said vertical shaft, said bearing mounted on said fixed element of said frame and disposed between the turbine wheel and the pump wheel whereby only one of said wheels is disposed substantially in the central plane of said spiral casing and the other said wheel is thus spaced apart from said one wheel, direct conduits connecting said spiral casing to said one wheel and reversing conduits longer than said direct conduits connecting said spiral casing to the other wheel for progressive reversal of the direction of the tangential component of flow of the water between the spiral casing and said other wheel, or vice versa.
Claim 2
Dependent Claim
234 words
In a hydraulic machine, including a frame, a fixed element on said frame, a turbine and a pump each including a wheel, said turbine and pump both shaped for rotation in the same direction, a vertical shaft, said turbine wheel and the pump wheel each connected to said shaft, said turbine including a distributor, said pump including a diffuser, said turbine and pump each including a draft tube, said draft tubes disposed in opposite directions to one another, a single spiral casing connected to the distributor of the turbine and to the diffuser of the pump, valve means permitting the selective separation of the internal space of the spiral casing from the space in which the turbine rotates and the space in which the pump rotates, a bearing for said vertical shaft, said bearing mounted on said fixed element of said frame and disposed between the turbine wheel and the pump wheel whereby only one of said wheels is disposed substantially in the central plane of said spiral casing and the other said wheel is thus spaced apart from said one wheel, direct conduits connecting said spiral casing to said one wheel and reversing conduits longer than said direct conduits connecting said spiral casing to the other wheel for progressive reversal of the direction of the tangential component of flow of the water between the spiral casing and said other wheel, or vice versa.
Claim 3
Dependent Claim
37 words
A hydraulic machine according to claim 1 wherein a plurality of annular chambers surround the vertical shaft and are housed in the fixed element of the frame, a plurality of channels connecting said chambers with the outside.
Claim 4
Dependent Claim
20 words
A hydraulic machine according to claim 1 wherein said reversing conduits are formed in the fixed element of the frame.
Claim 5
Dependent Claim
22 words
A hydraulic machine according to claim 1 wherein said reversing conduits comprise separate pipes housed in the fixed element of the frame.
Claim 6
Dependent Claim
77 words
A hydraulic machine according to claim 1 wherein the said one wheel disposed substantially in the central plane of the spiral casing in the turbIne wheel, the pump wheel being axially spaced from this plane and the reversing conduits, connecting the outlet of the diffuser of the pump to the spiral casing, being provided substantially outside the annular space defined by the periphery of the turbine wheel and the outer face of the spiral casing surrounding it.
Claim 7
Dependent Claim
77 words
A hydraulic machine according to claim 1 wherein the said one wheel disposed substantially in the central plane of the spiral casing is the pump wheel, the turbine wheel being axially spaced from this plane and the reversing conduits, connecting the inlet of the distributor of the turbine to the spiral casing, being provided substantially outside the annular space defined by the periphery of the pump wheel and the outer face of the spiral casing surrounding it.
References Cited (Backward Citations)
US2996995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |