Westport Fuel Systems Canada Inc.

Westport Power Inc.

Westport Research Inc.

Gregory C Harper

Gregory A Batenburg

Kenneth William Kratschmar

Gage D Garner

Paul Steven Schranz

Greg A Batenburg

Ankur Harshkant Vayeda

Michael Ebbehoj

Robbi L McDonald

Mike Ure

Jason G Newton

Robbi L Mcdonald

Ziyuan Ren

Ankur H Vayeda

Brian A Girard

Paul S Schranz

Raymundo A Saenz

A flange for a pump comprises first and second faces and a passageway for cryogenic fluid flow extending from the first face to the second face and at least one of (1) the passageway is for a pipe and comprises a first portion of a first diameter and a second portion of a second diameter greater than the first diameter, wherein when the pipe has an outer diameter that is smaller than the second diameter a gap is formed between the pipe and the passageway where the pipe passes through the second portion; and (2) a first annular groove in one of the first face and the second face and extending around the passageway, wherein the first annular groove in cooperation with the passageway forms a bellows. The gap and bellows increase the thermal resistance between the passageway and the flange, and the bellows allows for flexure during thermal contractions of the flange reducing thermal stress on welded fluid seals.

Cryogenic pump flange

Growing community of inventors

Vancouver, Canada

Gregory C Harper