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US 9,435,204 B2Granted
Structurally efficient cooled engine housing for rotary engines
AssigneeUnited Technologies Corporation
InventorMark David Horn
Life of this patent
Estimating the term…
Abstract
An engine includes a housing having a single wall, where the wall has a rib and a flange, and the wall provides a primary structure and cooling for the engine. A closeout is attached to an outer surface of the wall, and the closeout and the wall form a cavity. The closeout provides a secondary structure for containing a coolant fluid flow within the cavity. The closeout may be corrugated, and the ribs may be exposed to the cavity.
Claims13
An apparatus for an engine, comprising:
- a tubular housing structure extending along a centerline and comprising:
- an inner wall portion extending about and axially along the centerline;
- a first flange projecting radially out from the inner wall portion;
- a second flange projecting radially out from the inner wall portion;
- a first rib projecting radially out from the inner wall portion, and extending axially between the first flange and the second flange;
- and
- a second rib projecting radially out from the inner wall portion, and extending axially between the first flange and the second flange;
- and
- a closeout radially recessed into a side of and forming a cavity with the tubular housing structure, and the closeout attached to the tubular housing structure;
- wherein the cavity extends axially between the first flange and the second flange, laterally between the first rib and the second rib, and radially outward from the inner wall portion to the closeout.
7 more elements
A rotary engine, comprising:
- a tubular housing structure extending along a centerline and comprising:
- an inner wall portion extending about and axially along the centerline;
- a first flange projecting radially out from the inner wall portion;
- a second flange projecting radially out from the inner wall portion;
- a first rib projecting radially out from the inner wall portion, and extending axially between the first flange and the second flange;
- and
- a second rib projecting radially out from the inner wall portion, and extending axially between the first flange and the second flange;
- a closeout radially recessed into a side of and forming a cavity with the tubular housing structure, and the closeout attached to the tubular housing structure;
- and
- a rotor arranged within an inner volume formed by and radially within the inner wall portion;
- wherein the cavity extends axially between the first flange and the second flange, laterally between the first rib and the second rib, and radially outward from the inner wall portion to the closeout.
8 more elements
Dependencies are inferred from the claim text.