BLADED ROTOR

• US 3,610,772 A
• Filed: 05/04/1970
• Issued: 10/05/1971
• Est. Priority Date: 05/04/1970
• Status: Expired due to Term

• Current Assignee: Joseph A. Wagle
• Original Assignee: Joseph A. Wagle
• Inventors: Wagle, Joseph A.
• Primary Examiner(s): Powell, Jr., Everette A.
• Application Number:
  US05/034,055
• Time in Patent Office: 519 Days
• Field of Search: 416/198A,218,213,244
• US Class Current: 416/8
• CPC Class Codes: F01D 5/06 Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections F01D5/022, F01D5/023 take precedence
• CPC Class Codes: F01D 5/066 Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps
• CPC Class Codes: F01D 5/30 Fixing blades to rotors; Blade roots ; Blade spacers

Abstract

A turbomachine rotor of alternating bladed rings and spacer rings, the bladed rings including blades welded to a rim, a web extending radially inward from the rim, and flanges extending from both faces of the web, with a reinforcing ring of filament reinforced composite material serving to resist centrifugal forces on each flange.

Claims

1. A turbomachine rotor comprising, in combination, bladed rings, spacer rings disposed between and abutting adjacent bladed rings, and means retaining the bladed rings and spacer rings fixed together in abutting relation to form a drum rotor;

each bladed ring comprising an axially extending rim bearing a ring of blades extending radially outward from the rim, a web integral with the rim extending radially inward from near the middle of the rim, a flange integral with the web extending axially from each face of the web, and a reinforcing ring of filament reinforced composite material disposed around the outer surface of each flange.

2. A turbomachine rotor comprising, in combination, bladed rings, spacer rings disposed between and abutting adjacent bladed rings, and means retaining the bladed rings and spacer rings fixed together in abutting relation to form a drum rotor;

each bladed ring comprising an axially extending rim bearing a ring of blades extending radially outward from the rim, a web integral with the rim extending radially inward from near the middle of the rim, a flange integral with the web extending axially from each face of the web, and a reinforcing ring of filament reinforced composite material disposed around the outer surface of each flange;

the flanges abutting the adjacent spacer rings.

3. A turbomachine rotor comprising, in combination, bladed rings, spacer rings disposed between and abutting adjacent bladed rings, and means retaining the bladed rings and spacer rings fixed together in abutting relation to form a drum rotor;

each bladed ring comprising an axially extending rim bearing a ring of blades extending radially outward from the rim, a web integral with the rim extending radially inward from near the middle of the rim, a flange integral with the web extending axially from each face of the web, and a reinforcing ring of filament reinforced composite material disposed around the outer surface of each flange;

the flanges abutting the adjacent spacer rings, and the spacer rings being piloted within the bladed rings.

4. A rotor as defined in claim 3 including also a torque-transmitting spline connection between the said flanges and the spacer rings.

5. A turbomachine rotor comprising, in combination, bladed rings, spacer rings disposed between and abutting adjacent bladed rings, and means retaining the bladed rings and spacer rings fixed together in abutting relation to form a drum rotor;

each bladed ring comprising an axially extending rim, a ring of blades extending radially outward from the rim and welded to the rim, a web integral with the rim extending radially inward from near the middle of the rim, a flange integral with the web extending axially from each face of the web, and a reinforcing ring of filament reinforced composite material disposed around the outer surface of each flange.