Hybrid drive shaft

Details Hybrid drive shaft Hybrid drive shaft

1987-08-17

1989-05-30

Stodola, Daniel P.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Shafting

Hollow or layered shaft

428608, 464902, F16C 302

Patent

active

048346934

ABSTRACT:
A high specific modulus shaft for use in a dynamic assembly such as a gas turbine engine is constructed having a metal outer tubular shaft to transmit the torque and an interior shaft constructed of a metal and high modulus filament composite material bonded to the inner diameter of the outer shaft. The outer shaft may be constructed of steel or titanium or superalloy such as Inconel 718. The inner shaft may be constructed of an aluminum matrix in which multiple boron filaments are embedded in axial alignment or of a titanium matrix in which boron filaments coated with silicon carbide or boron carbide are similarly embedded.

REFERENCES:
patent: 3466895 (1969-09-01), Cartwright
patent: 3849080 (1974-11-01), Zechmeister
patent: 3862489 (1975-01-01), Weisinger
patent: 3871834 (1975-03-01), Kuniya et al.
patent: 3890690 (1975-06-01), Li
patent: 3936277 (1976-02-01), Jakway et al.
patent: 3938964 (1976-02-01), Schmidt
patent: 4173670 (1979-11-01), VanAuken
patent: 4272971 (1981-06-01), Loyd et al.
patent: 4318280 (1982-03-01), Williams
Mechanical Engineering, "Low-Cost High Performance Carbon Fibers", William E. Chambers, pp. 37-41, Dec. 1975.
Machine Design, "Advanced Fiber-Resin Composites", Kenneth R. Berg et al., pp. 2-10, Apr. 1, 1971.

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