Patent US3603702A successfully refreshed from Google Patents.
US3603702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor assembly
Assignee: Elliott Turbomachinery Co Inc
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Filing: 1969-05-01
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Granted: 1971-09-07
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Expires: 1989-05-01
Abstract
Abstract A rotor for use in a turbomachine comprising a shaft, a plurality of wheels axially connected to the shaft, and a plurality of blades mounted circumferentially about each of the wheels. Spacer rings are disposed between alternate wheels and are connected thereto to maintain the wheels in their spaced axial positions. Disposed above alternate spacer rings are a plurality of substantially cylindrical members having a removable portion. When a blade becomes defective, the cylindrical member adjacent thereto will be rotated to align the removable portion with the defective blade. The removable portion of the member is withdrawn to leave an opening adjacent to the base of the defective blade. The defective blade may then be slid into this opening and be removed from the machine.
Inventors
- 👤 Richard C Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:23
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3007
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A rotor for use in a turbomachine comprising: A. shaft means; B. a plurality of wheels mounted on said shaft means; C. a plurality of blades circumferentially mounted on each of said wheels, said blades including a tip portion and a base portion; and D. substantially cylindrical means disposed axially about said shaft means between alternate pairs of wheels, at least a portion of each of said substantially cylindrical means being removable when said turbomachine is inactive, said substantially cylindrical means being rotatable relative to said wheels when said turbomachine is inactive, thereby permitting said removable portion of said cylindrical means to be aligned with a blade that is to be removed from said wheel adjacent to said cylindrical means, said removable portion upon separation from said cylindrical means defining an opening adjacent to said base of said blade into which said blade may be slidably positioned for removal.
Claim 2
Dependent Claim
149 words
A rotor for use in a turbomachine comprising: A. shaft means; B. a plurality of wheels mounted on said shaft means; C. a plurality of blades circumferentially mounted on each of said wheels, said blades including a tip portion and a base portion; and D. substantially cylindrical means disposed axially about said shaft means between alternate pairs of wheels, at least a portion of each of said substantially cylindrical means being removable when said turbomachine is inactive, said substantially cylindrical means being rotatable relative to said wheels when said turbomachine is inactive, thereby permitting said removable portion of said cylindrical means to be aligned with a blade that is to be removed from said wheel adjacent to said cylindrical means, said removable portion upon separation from said cylindrical means defining an opening adjacent to said base of said blade into which said blade may be slidably positioned for removal.
Claim 3
Dependent Claim
351 words
A rotor for use in a turbomachine comprising: A. shaft means; B. a plurality of wheels mounted on said shaft means having a relatively wide section and a relatively narrow section defining therebetween a first shoulder portion, a portion of said relatively narrow section being further reduced to define a second shoulder portion: C. a plurality of blades circumferentially mounted on each of said wheels, said blades including a tip portion and a base portion; D. a plurality of spacer members mounted axially about said shaft means between consecutive wheels, sAid spacer members having a relatively wide section and a relatively narrow section defining therebetween a shoulder portion; and E. a plurality of substantially cylindrical assemblies disposed axially about said shaft means between alternate pairs of wheels, said substantially cylindrical assemblies having a portion provided with a relatively wide section and a relatively narrow section defining therebetween a shoulder portion, said substantially cylindrical assemblies being mounted radially above said spacer members associated therewith and connected thereto, at least a section of each of said substantially cylindrical assemblies being removable when said turbomachine is inactive, each of said substantially cylindrical assemblies being rotatable relative to said wheels when said turbomachine is inactive, thereby permitting said removable section to be aligned with a blade that is to be removed from said wheel adjacent thereto, said removable section defining an opening adjacent to said base of said blade when removed, for slidably receiving said blade preparatory to removal thereof, said substantially cylindrical assemblies being positioned relative to the wheels adjacent thereto so said shoulder portion of said cylindrical member and said first shoulder portion of said wheels interengage one another; said spacer members underlying said substantially cylindrical assembly being positioned relative to said adjacent wheels so said shoulder portion of said spacer members and said second shoulder portion of said wheels interengage one another, said spacer members alternate from said spacer members underlying said substantially cylindrical members being positioned relative to said wheels adjacent thereto so said shoulder portion of said spacer members and said first shoulder portion of said wheels interengage one another.
Claim 4
Dependent Claim
351 words
A rotor for use in a turbomachine comprising: A. shaft means; B. a plurality of wheels mounted on said shaft means having a relatively wide section and a relatively narrow section defining therebetween a first shoulder portion, a portion of said relatively narrow section being further reduced to define a second shoulder portion: C. a plurality of blades circumferentially mounted on each of said wheels, said blades including a tip portion and a base portion; D. a plurality of spacer members mounted axially about said shaft means between consecutive wheels, sAid spacer members having a relatively wide section and a relatively narrow section defining therebetween a shoulder portion; and E. a plurality of substantially cylindrical assemblies disposed axially about said shaft means between alternate pairs of wheels, said substantially cylindrical assemblies having a portion provided with a relatively wide section and a relatively narrow section defining therebetween a shoulder portion, said substantially cylindrical assemblies being mounted radially above said spacer members associated therewith and connected thereto, at least a section of each of said substantially cylindrical assemblies being removable when said turbomachine is inactive, each of said substantially cylindrical assemblies being rotatable relative to said wheels when said turbomachine is inactive, thereby permitting said removable section to be aligned with a blade that is to be removed from said wheel adjacent thereto, said removable section defining an opening adjacent to said base of said blade when removed, for slidably receiving said blade preparatory to removal thereof, said substantially cylindrical assemblies being positioned relative to the wheels adjacent thereto so said shoulder portion of said cylindrical member and said first shoulder portion of said wheels interengage one another; said spacer members underlying said substantially cylindrical assembly being positioned relative to said adjacent wheels so said shoulder portion of said spacer members and said second shoulder portion of said wheels interengage one another, said spacer members alternate from said spacer members underlying said substantially cylindrical members being positioned relative to said wheels adjacent thereto so said shoulder portion of said spacer members and said first shoulder portion of said wheels interengage one another.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |