IP Library Granted Patent US 10,018,050
Granted Patent B2
US 10,018,050 · App. 14/390,566 · Granted Jul 10, 2018

Turbomachine rotor blade

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Quick Facts
Patent No.
US 10,018,050
App. No.
14/390,566
Granted
Jul 10, 2018
Kind
B2
Abstract

A turbomachine rotor blade including a blade root and a blade tip spaced apart by a blade height, including at least one intermediate segment between the blade root and the blade tip that presents forward sweep over at least 50% of the blade height, and a distal segment with backward sweep between the intermediate segment and the blade tip, the distal segment also presenting a positive tangential angle of inclination.

Claims (13)

1. A turbomachine rotor blade comprising:

a blade root and a blade tip spaced apart by a blade height;

at least one intermediate segment between the blade root and the blade tip that presents forward sweep over at least 50% of the blade height; and

a distal segment with backward sweep between the at least one intermediate segment and the blade tip, the distal segment also presenting, from the at least one intermediate segment to the blade tip, a positive tangential angle of inclination in a direction of rotation of a rotor.

2. A turbomachine rotor blade according to claim 1 , wherein the distal segment presents a positive tangential angle of inclination, in the direction of rotation of the rotor, that is more pronounced than that of the at least one intermediate segment.

3. A turbomachine rotor blade according to claim 1 , wherein the at least one intermediate segment also presents a positive tangential angle of inclination, in the direction of rotation of the rotor, over at least one zone adjacent to the distal segment.

4. A turbomachine rotor blade according to claim 1 , wherein the distal segment occupies at least 5% of the blade height.

5. A turbomachine rotor blade according to claim 4 , wherein the distal segment occupies at least 8% of the blade height.

6. A turbomachine rotor blade according to claim 1 , wherein the distal segment occupies no, more than 30% of the blade height.

7. A turbomachine rotor blade according to claim 6 , wherein the distal segment occupies no more than 15% of the blade height.

8. A single-piece bladed disk comprising a plurality of blades according to claim 1 .

9. A compressor rotor comprising a plurality of blades according to claim 1 .

10. A fan rotor comprising a plurality of blades according to claim 1 .

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE COVER SHEET TO REMOVE APPLICATION NOS. 10250419, 10786507, 10786409, 12416418, 12531115, 12996294, 12094637 12416422 PREVIOUSLY RECORDED ON REEL 046479 FRAME 0807. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Aug 24, 2018
From: SNECMA
To: SAFRAN AIRCRAFT ENGINES
Reel/Frame 046939/0336 →
CHANGE OF NAME Recorded May 23, 2018
From: SNECMA
To: SAFRAN AIRCRAFT ENGINES
Reel/Frame 046479/0807 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 23, 2014
From: PERROT, VINCENT PAUL, GABRIEL; COINTE, JULIEN; RIOS, JEAN-FRANCOIS
To: SNECMA
Reel/Frame 034020/0746 →
Cited By (1)
US 12,313,152