Bucket and wheel dovetail design for turbine rotors

Details Bucket and wheel dovetail design for turbine rotors Bucket and wheel dovetail design for turbine rotors

1998-08-26

2000-11-07

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Blade straddles carrier

416219R, F01D 532

Patent

active

061427373

ABSTRACT:
A dovetail joint between a rotor wheel and a bucket includes a male dovetail component on the rotor wheel and a female dovetail component in the bucket. The male dovetail component has axially projecting hooks with slanted crush surfaces along generally radially inwardly directed surfaces. The slanted surfaces form included angles with neck portions parallel to a plane normal to the axis of rotation which are larger than 90.degree. and decrease in included angle from the radially outermost hooks to the radially innermost hook where the angle is 90.degree.. Compound fillets are also provided along the transition surfaces between the slanted crush surfaces and the neck surfaces. Thus, stress concentrations are minimized.

REFERENCES:
patent: 1353797 (1920-09-01), Steenstrup
patent: 2753149 (1956-07-01), Kurti
patent: 2916257 (1959-12-01), Poellmitz et al.
patent: 4730984 (1988-03-01), Ortolano
patent: 4824328 (1989-04-01), Pisz et al.
patent: 5147180 (1992-09-01), Johnson
patent: 5174720 (1992-12-01), Gradl
patent: 5474423 (1995-12-01), Seeley et al.
patent: 5480285 (1996-01-01), Patel et al.
patent: 5494408 (1996-02-01), Seeley et al.
patent: 5531569 (1996-07-01), Seeley

Affiliated with

Also associated with

Rating

Bucket and wheel dovetail design for turbine rotors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bucket and wheel dovetail design for turbine rotors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bucket and wheel dovetail design for turbine rotors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1635118