Exhaust valve for multiple start torpedo

Patent metadata

Field	Value
Publication number	US-10914562-B2
Application number	US-201916409466-A
Country	US
Kind code	B2
Filing date	May 10, 2019
Priority date	May 10, 2019
Publication date	Feb 9, 2021
Grant date	Feb 9, 2021

Abstract

Disclosed is a multiple start torpedo including an aft body having an exhaust conduit defining a turbine end and a seawater end having an orifice. The multiple start torpedo includes an exhaust valve associated with the exhaust conduit including. The exhaust valve includes a fore section having a head and a valve stem. The exhaust valve includes an aft section tapered from the turbine end to the seawater end and defining a receptacle sized to receive the valve stem. The exhaust valve includes a biasing member disposed to bias the head in an extended position spaced apart from the aft section and abut the orifice in the extended position.

First claim

What is claimed is:

1. A multiple start torpedo comprising:
an aft body having an exhaust conduit defining a turbine end and a seawater end having an orifice; and
an exhaust valve associated with the exhaust conduit including:
a fore section having a head and a valve stem;
an aft section tapered from the turbine end to the seawater end and defining a receptacle sized to receive the valve stem; and
a biasing member disposed to bias the head in an extended position spaced apart from the aft section and abut the orifice in the extended position;
wherein:
the head defines a concave exterior surface and the orifice receives the concave exterior surface in the extended position; and
the head defines a seawater catch basin oriented toward the seawater end such that seawater inflows drive the head toward the extended position.

2. The multiple start torpedo of claim 1 , wherein the head in a compressed position forms a teardrop shape with the aft section.

3. The multiple start torpedo of claim 1 , wherein the seawater catch basin has an outer surface that is substantially concave.

4. The multiple start torpedo of claim 1 , wherein the aft section is cropped on the seawater end.

5. The multiple start torpedo of claim 1 , wherein an exhaust valve diameter of the exhaust conduit is greater than an orifice diameter of the exhaust conduit.

6. The multiple start torpedo of claim 5 , wherein the aft section is suspended by stanchions along an axis of the exhaust conduit having the exhaust valve diameter.

7. The multiple start torpedo of claim 5 , wherein an exhaust valve diameter profile of the exhaust conduit is sized according to an outer profile of a teardrop shape formed by the head and the aft section in a compressed position.

8. The multiple start torpedo of claim 5 , wherein an exhaust valve cross-sectional exhaust area of the exhaust conduit and an orifice cross-sectional exhaust area of the exhaust conduit is same.

9. A multiple start torpedo comprising:
an exhaust valve including
a fore section having a head and a valve stem,
an aft section and defining a receptacle sized to receive the valve stem, and
a biasing member having an extended position where the head is spaced apart from the aft section and a compressed position where the head and the aft section form a teardrop shape;

wherein:
the head forms an inner bulbous portion of the teardrop shape and the aft section forms an inner tail portion of the teardrop shape;
the multiple start torpedo further comprises, an aft body having an exhaust conduit defining a turbine end and a seawater end; and
the head defines a seawater catch basin oriented toward the seawater end such that seawater inflows drive the head toward the extended position.

10. The multiple start torpedo of claim 9 , wherein the aft section is tapered toward the seawater end.

11. The multiple start torpedo of claim 9 , wherein the seawater catch basin has an outer surface that is substantially concave.

12. The multiple start torpedo of claim 9 , wherein the aft section is cropped on the seawater end.

13. The multiple start torpedo of claim 9 , wherein an exhaust valve diameter of the exhaust conduit is greater than an orifice diameter of the exhaust conduit.

14. The multiple start torpedo of claim 9 , wherein the aft section is suspended along an axis of the exhaust conduit.

15. A multiple start torpedo comprising:
an exhaust valve including:
a fore section including a head defining a maximum outer diameter and a valve stem;
an aft section and defining a receptacle sized to receive the valve stem; and
a biasing member having an extended position where the head is spaced apart from the aft section and a compressed position where the head and the aft section form an inner teardrop shape having an inner bulbous portion and an inner tail portion; and
an exhaust conduit defining a seawater end and a turbine end, including an orifice defining an orifice diameter less than the maximum outer diameter such that the head is sized to block the orifice in the extended position, and including a contour having an outer teardrop shape that mimics the inner teardrop shape having an outer bulbous portion that joins the orifice toward the turbine end and an outer tail portion that extends toward the seawater end.

Assignees

• Hamilton Sundstrand Corp
• Hamilton Sunstrand Corp

Inventors

• Himmelmann Richard A

Classifications

• F42B19/24 Primary

  by electric motors · CPC title

• F42B19/22 Primary

  by internal-combustion engines · CPC title