US3749513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid turbomotor
Assignee: Yale Industrial Products Inc
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Filing: 1970-09-22
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Granted: 1973-07-31
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Expires: 1990-09-22
Abstract
Abstract A fluid turbomotor comprising a radial turbine wheel of the radial inflow type, a single stage axial turbine wheel on the same shaft as the radial wheel, and a blade type nozzle structure interposed between the radial and axial wheels, wherein the working fluid is introduced at the radial periphery of the radial wheel, is discharged at an axial face of the radial wheel into the nozzle structure, and is directed by the blades of the nozzle structure into the axial turbine wheel; also disclosed is a novel nozzle ring structure for the radial turbine wheel comprising two side-by-side blade sets of different angular orientation which are selectively moved into working relationship to the inflow of the radial wheel to vary the direction at which the working fluid is delivered to the radial wheel. The invention turbomotor is disclosed as the power source in an overhead cable hoist structure.
Inventors
- 👤 R Chute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:47
CPC Classifications
F; F01; F01D; F01D1/00; F01D1/30; F01D1/02; F01D15/00; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/167
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
382 words
A fluid turbomotor comprising: A. means defining a housing; B. a radial turbine wheel of the radial inflow type; C. means mounting said turbine wheel for rotation within said housing about its central axis; D. a nozzle ring structure positioned in said housing concentric with said axis and encircling said turbine wheel, said nozzle ring structure including 1. a support ring, 2. a first blade set comprising a plurality of blades circumferentially spaced about said axis and disposed at a first angle with respect to the orbit of said wheel, the blades of said first blade set are integral at one end with said support ring and project therefrom in cantilever fashion to present a free edge, and 3. a second blade set spaced axially from said first blade set and comprising a plurality of blades circumferentially spaced about said axis and disposed at a second angle with respect to said orbit; E. means mounting said ring structure in said housing for axial movement relative to said wheel between 1. a first position axially aligning said first blade set with the outer periphery of said wheel and axially displacing said second blade set with respect to said outer periphery, whereby working fluid may be directed through said first blade set against the vanes of said turbine wheel at said first angle, and 2. a second position axially aligning said second blade set with said outer periphery and axially displacing said first blade set with respect to said outer periphery, whereby fluid may be directed through said second blade set against the vanes of said turbine wheel at said second angle; F. a ring member disposed within Said housing in side-by-side relation to said first blade set and presenting an annular face in confronting relation to said free edges, said ring member having a plurality of axially extending pockets formed therein each of a shape to snugly receive a respective blade of said first blade set and each opening in said confronting annular face; and G. means mounting said ring member for axial movement within said housing relative to said nozzle ring structure to selectively receive the blades of said first blade set within said pockets and thereby selectively vary the effective, exposed working area of the blades of said first blade set.
Claim 2
Dependent Claim
382 words
A fluid turbomotor comprising: A. means defining a housing; B. a radial turbine wheel of the radial inflow type; C. means mounting said turbine wheel for rotation within said housing about its central axis; D. a nozzle ring structure positioned in said housing concentric with said axis and encircling said turbine wheel, said nozzle ring structure including 1. a support ring, 2. a first blade set comprising a plurality of blades circumferentially spaced about said axis and disposed at a first angle with respect to the orbit of said wheel, the blades of said first blade set are integral at one end with said support ring and project therefrom in cantilever fashion to present a free edge, and 3. a second blade set spaced axially from said first blade set and comprising a plurality of blades circumferentially spaced about said axis and disposed at a second angle with respect to said orbit; E. means mounting said ring structure in said housing for axial movement relative to said wheel between 1. a first position axially aligning said first blade set with the outer periphery of said wheel and axially displacing said second blade set with respect to said outer periphery, whereby working fluid may be directed through said first blade set against the vanes of said turbine wheel at said first angle, and 2. a second position axially aligning said second blade set with said outer periphery and axially displacing said first blade set with respect to said outer periphery, whereby fluid may be directed through said second blade set against the vanes of said turbine wheel at said second angle; F. a ring member disposed within Said housing in side-by-side relation to said first blade set and presenting an annular face in confronting relation to said free edges, said ring member having a plurality of axially extending pockets formed therein each of a shape to snugly receive a respective blade of said first blade set and each opening in said confronting annular face; and G. means mounting said ring member for axial movement within said housing relative to said nozzle ring structure to selectively receive the blades of said first blade set within said pockets and thereby selectively vary the effective, exposed working area of the blades of said first blade set.
Claim 3
Dependent Claim
56 words
a first blade set comprising a plurality of blades circumferentially spaced about said axis and disposed at a first angle with respect to the orbit of said wheel, the blades of said first blade set are integral at one end with said support ring and project therefrom in cantilever fashion to present a free edge, and
Claim 4
Dependent Claim
56 words
a first blade set comprising a plurality of blades circumferentially spaced about said axis and disposed at a first angle with respect to the orbit of said wheel, the blades of said first blade set are integral at one end with said support ring and project therefrom in cantilever fashion to present a free edge, and
Claim 5
Dependent Claim
106 words
A fluid turbomotor according to claim 1 wherein H. said mounting means comprises means defining an annular chamber within said housing concentric with said axis and encircling said radial turbine wheel; I. said nozzle ring structure comprises an annular first piston slideably received in said chamber for axial reciprocation to selectively move said nozzle ring structure between said first and second positions; and J. said ring member comprises an annular second piston slideably received in said chamber in tandem relation to said first piston and arranged for axial reciprocation relative to said first piston to selectively vary the effective working area of said first set blades.
Claim 6
Dependent Claim
159 words
a second position axially aligning said second blade set with said outer periphery and axially displacing said first blade set with respect to said outer periphery, whereby fluid may be directed through said second blade set against the vanes of said turbine wheel at said second angle; F. a ring member disposed within Said housing in side-by-side relation to said first blade set and presenting an annular face in confronting relation to said free edges, said ring member having a plurality of axially extending pockets formed therein each of a shape to snugly receive a respective blade of said first blade set and each opening in said confronting annular face; and G. means mounting said ring member for axial movement within said housing relative to said nozzle ring structure to selectively receive the blades of said first blade set within said pockets and thereby selectively vary the effective, exposed working area of the blades of said first blade set.
Claim 7
Dependent Claim
159 words
a second position axially aligning said second blade set with said outer periphery and axially displacing said first blade set with respect to said outer periphery, whereby fluid may be directed through said second blade set against the vanes of said turbine wheel at said second angle; F. a ring member disposed within Said housing in side-by-side relation to said first blade set and presenting an annular face in confronting relation to said free edges, said ring member having a plurality of axially extending pockets formed therein each of a shape to snugly receive a respective blade of said first blade set and each opening in said confronting annular face; and G. means mounting said ring member for axial movement within said housing relative to said nozzle ring structure to selectively receive the blades of said first blade set within said pockets and thereby selectively vary the effective, exposed working area of the blades of said first blade set.
Claim 8
Dependent Claim
23 words
means mounting the blades of said first blade set for pivotal movement relative to said ring structure about axes parallel to said axis,
Claim 9
Dependent Claim
23 words
means mounting the blades of said first blade set for pivotal movement relative to said ring structure about axes parallel to said axis,
Claim 10
Dependent Claim
50 words
a second position axially aligning said second blade set with said outer periphery of said wheel and axially displacing said first blade set with respect to said outer periphery, whereby fluid may be directed through said second blade set against the vanes of said turbine wheel at said fixed angle.
Claim 11
Dependent Claim
50 words
a second position axially aligning said second blade set with said outer periphery of said wheel and axially displacing said first blade set with respect to said outer periphery, whereby fluid may be directed through said second blade set against the vanes of said turbine wheel at said fixed angle.
Claim 12
Dependent Claim
126 words
a plurality of blades circumferentially spaced about said axis and integral at one end with said support ring and projecting axially therefrom in centilever fashion to present a free edge; E. a ring member disposed within said housing in side-by-side relation to said blades and presenting an annular face in confronting relation to said free blade edges, said ring member having a plurality of axially extending pockets formed therein each of a shape to snugly receive a respective blade and each opening in said confronting annular face; and F. means mounting said ring member for axial movement within said housing relative to said nozzle ring structure to selectively receive said blades within said pockets and thereby selectively vary the effective, exposed working area of said blades.
Claim 13
Dependent Claim
126 words
a plurality of blades circumferentially spaced about said axis and integral at one end with said support ring and projecting axially therefrom in centilever fashion to present a free edge; E. a ring member disposed within said housing in side-by-side relation to said blades and presenting an annular face in confronting relation to said free blade edges, said ring member having a plurality of axially extending pockets formed therein each of a shape to snugly receive a respective blade and each opening in said confronting annular face; and F. means mounting said ring member for axial movement within said housing relative to said nozzle ring structure to selectively receive said blades within said pockets and thereby selectively vary the effective, exposed working area of said blades.
Claim 14
Dependent Claim
146 words
A fluid turbomotor according to claim 2 and further including K. first sealing means defining a first sealed subchamber within said chamber between an annular end wall of said chamber and the adjacent annular end wall of said first piston; L. first conduit means opening in said first subchamber for introducing pressurized control fluid into said first subchamber to reciprocate said first piston in said chamber between said first and second positions; M. second sealing means defining a second sealed subchamber within said chamber between the other annular end of said chamber and the adjacent annular end wall of said second piston; and N. second conduit means opening in said second subchamber for introducing pressurized control fluid into said second subchamber to reciprocate said second piston in said chamber relative to said first piston to selectively vary the effective working area of said first set blades.
Claim 15
Dependent Claim
16 words
means for pivoting the blades of said first blade set in unison about said axes, and
Claim 16
Dependent Claim
16 words
means for pivoting the blades of said first blade set in unison about said axes, and
Claim 17
Dependent Claim
50 words
a second blade set spaced axially from said first blade set and comprising a plurality of blades circumferentially spaced about said axis and disposed at a second angle with respect to said orbit; E. means mounting said ring structure in said housing for axial movement relative to said wheel between
Claim 18
Dependent Claim
50 words
a second blade set spaced axially from said first blade set and comprising a plurality of blades circumferentially spaced about said axis and disposed at a second angle with respect to said orbit; E. means mounting said ring structure in said housing for axial movement relative to said wheel between
Claim 19
Dependent Claim
50 words
a second blade set spaced axially from said first set and comprising a plurality of blades circumferentially spaced about said axis and each disposed at a fixed angle with respect to said orbit; E. means mounting said ring structure in said housing for axial movement relative to said wheel between
Claim 20
Dependent Claim
50 words
a second blade set spaced axially from said first set and comprising a plurality of blades circumferentially spaced about said axis and each disposed at a fixed angle with respect to said orbit; E. means mounting said ring structure in said housing for axial movement relative to said wheel between
Claim 21
Dependent Claim
57 words
A fluid turbomotor comprising A. means defining a housing; B. a radial turbine wheel of the radial inflow type; C. means mounting said turbine wheel for rotation within said housing about its central axis; D. a nozzle ring structure positioned in said housing concentric with said axis and encircling said turbine wheel, said nozzle ring structure including
Claim 22
Dependent Claim
57 words
A fluid turbomotor comprising A. means defining a housing; B. a radial turbine wheel of the radial inflow type; C. means mounting said turbine wheel for rotation within said housing about its central axis; D. a nozzle ring structure positioned in said housing concentric with said axis and encircling said turbine wheel, said nozzle ring structure including
Claim 23
Dependent Claim
63 words
A fluid turbomotor according to claim 4 wherein G. said mounting means comprises means defining an annular chamber within said housing concentric with said axis and encircling said radial turbine wheel; and H. said ring member comprises an annular piston slideably received in said chamber for axial reciprocation in said chamber to selectively vary the effective working area of said first set blades.
Claim 24
Dependent Claim
57 words
A fluid turbomotor comprising: A. means deFining a housing; B. a radial turbine wheel of the radial inflow type; C. means mounting said turbine wheel for rotation within said housing about its central axis; D. a nozzle ring structure positioned in said housing concentric with said axis and encircling said turbine wheel, said nozzle ring structure including
Claim 25
Dependent Claim
57 words
A fluid turbomotor comprising: A. means deFining a housing; B. a radial turbine wheel of the radial inflow type; C. means mounting said turbine wheel for rotation within said housing about its central axis; D. a nozzle ring structure positioned in said housing concentric with said axis and encircling said turbine wheel, said nozzle ring structure including
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |