Polymeric casing for fluid machines and pumps

Details Polymeric casing for fluid machines and pumps Polymeric casing for fluid machines and pumps

1989-12-21

1991-09-10

Look, Edward K.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Means to seal radial flow pump runner inlet from outlet

415200, F01D 1100, F01D 2500

Patent

active

050469223

ABSTRACT:
This invention is directed to a fluid pump containing a structural member, such as casing, which the fluid contacts as it enters the pump, and to a structural member having sufficient mechanical strength and flexibility for use in a fluid pump, such as a casing, which is made of a ring-opened polymer of a norbornene-type monomer containing an effective amount of an elastomer, the structural member has heat distortion temperature of over 120.degree. C., elongation at break of 15 to 80%, and flexural modulus of elasticity of 170 kg/mm.sup.2 or above.

REFERENCES:
patent: 2652191 (1953-09-01), Buchi
patent: 2764099 (1956-09-01), Wernert
patent: 3304875 (1967-02-01), Copeland
patent: 3664760 (1972-05-01), Reiner
patent: 3876327 (1975-04-01), Lobanoff
patent: 4680006 (1987-07-01), Fisher
patent: 4952348 (1990-08-01), Ishimaru et al.

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