Inner housing assembly including retention slots

Patent metadata

Field	Value
Publication number	US-9790894-B2
Application number	US-201313847278-A
Country	US
Kind code	B2
Filing date	Mar 19, 2013
Priority date	Mar 19, 2013
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

A ram air fan assembly includes a motor/bearing housing that extends along a horizontal length of the ram air fan assembly. An inner housing assembly is in fluid communication with the motor/bearing housing to define a joint. The inner housing assembly includes first and second ellipse-shaped slots. The first slot is positioned at a first angle with respect to a radial axis of the inner housing assembly that is perpendicular to the horizontal length, and the second slot is positioned at a second angle with respect to the radial axis, the second angle being different from the first angle, and each slot extending along a first direction parallel to the horizontal length to define an axial width and extending along a radial axis to define a radial width being greater than the axial width.

First claim

What is claimed is:

1. A bracket to couple an inner housing assembly to a motor/bearing housing of a ram fan assembly, the bracket comprising:
a body extending between first and second ends in a first direction extending parallel to a horizontal length of the ram fan assembly;
a first channel formed in the first end, the first channel configured to receive a first bolt to couple the first end to the motor/bearing housing, the first channel extending a first channel axis that is parallel to the horizontal length to receive the first bolt so as to define a horizontal channel; and
a second channel formed in the second end, the second channel configured to receive a second bolt to couple the second end to the inner housing assembly, the second channel extending along a second channel axis that is perpendicular to the horizontal length to receive the second bolt so as to define a vertical channel;
wherein the vertical channel is aligned with a slot formed in the inner housing assembly and the bracket is exposed therethrough, the slot defining a first clearance extending in an axial direction between the inner housing assembly and the second bolt to expose a first portion of the bracket, and defines a second clearance different from the first clearance extending in a radial direction perpendicular to the axial direction to expose a second portion of the bracket, and
wherein the body extends between the first and second ends to define an opposing pair of first and second bracket sides, the first and second ends extending perpendicular to the bracket sides, wherein the first channel includes a first opening and a first closed end, the first opening extending from one end among the first and second bracket ends to the first closed end,
wherein the second channel includes a second opening and a second closed end, the second opening extending from the first bracket side to the second closed end, and wherein the first channel axis extends between the second closed end of the second channel and the second bracket side located opposite the first bracket side.

2. The bracket of claim 1 , wherein a first size of the first portion of the bracket exposed via the slot is less than a second size of the second portion of the bracket exposed via the slot.

3. The bracket of claim 1 , wherein the first closed end is between the second bracket side and the second closed end.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Chrabascz Eric
• Fiske William R
• Dorman David A

Classifications

• F04D19/00 Primary

  Axial-flow pumps (F04D21/00 takes precedence; {pump comprising axial flow and radial flow stages F04D17/025}) · CPC title

• F04D25/0606

  the electric motor being specially adapted for integration in the pump · CPC title

• F02K7/08 Primary

  the jet being continuous · CPC title

• F04D29/644

  especially adapted for elastic fluid pumps · CPC title

• B64D41/007

  Ram air turbines · CPC title