# US 6,134,878 A · Cooling arrangement for a gas turbine driven power system

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- Number: US 6,134,878 A
- Document ID: US6134878A
- Status: Granted
- Kind: A
- Application number: 09/158,206
- Filed: 1998-09-22
- Granted: 2000-10-24
- Earliest claimed: 1997-09-24
- Assignees: STS Corporation; Sho-Ongikenco., Ltd.
- Inventors: Kiyoo Amako; Takahiro Kato
- Web page: https://patentgrep.com/patent/US6134878A

## CPC

- F02C 7/045: having provisions for noise suppression
- F02C 7/08: Heating air supply before combustion, e.g. by exhaust gases
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)

## Abstract

A gas turbine driven power system includes a shell having an air inlet and an exhaust outlet. Mufflers are provided at the air inlet and the exhaust outlet, respectively. A gas turbine as a power source is provided in the shell and includes an inlet port and an outlet port. A heat exchanger is further provided in the shell in an air-passing space free of barrier formed between the muffler at the air inlet and the inlet port of the gas turbine. It is so arranged that all the air introduced into the shell through the air inlet passes through the heat exchanger for heat exchange with heat generated inside the shell.

## Claims

### Claim 1

A gas turbine driven power system comprising:
a shell having an air inlet and an exhaust outlet;
a gas turbine as a power source provided in said shell and having an inlet port and an outlet port;
a heat generating member which generates heat; and
a heat exchanger provided in said shell between said air inlet and said inlet port so that essentially all the air introduced through said air inlet passes through said heat exchanger for heat exchange with heat generated inside said shell by said heat generating member, wherein said air having passed through said heat exchanger is partly used for combustion in said gas turbine.

### Claim 2

A gas turbine driven power system comprising:
a shell having an air inlet and an exhaust outlet;
a gas turbine as a power source provided in said shell and having an inlet port and an outlet port;
a heat exchanger provided in said shell between said air inlet and said inlet port so that essentially all the air introduced through said air inlet passes through said heat exchanger for heat exchange with heat generated inside said shell; and
a muffler provided at said air inlet, wherein said heat exchanger is provided in an air-passing space free of barrier formed between said muffler and said inlet port of the gas turbine.

### Claim 3

A gas turbine driven power system comprising:
a shell having an air inlet and an exhaust outlet;
a gas turbine as a power source provided in said shell and having an inlet port and an outlet port;
a heat exchanger provided in said shell between said air inlet and said inlet port so that essentially all the air introduced through said air inlet passes through said heat exchanger for heat exchange with heat generated inside said shell; and
a muffler provided at said exhaust outlet, wherein a partition plate is provided in said shell to divide the inside of said shell into a cold section and a hot section, said cold section including therein said inlet port of the gas turbine and said hot section including therein said outlet port of the gas turbine, wherein an ejector mechanism is provided in said hot section for providing an ejector effect using an exhaust gas discharged from said outlet port of the gas turbine, and wherein an atmosphere in said hot section is forced out along with said exhaust gas due to said ejector effect so as to be discharged to the exterior of said shell via said muffler and said exhaust outlet.

### Claim 4 (depends on 3)

The gas turbine driven power system according to claim 3, wherein said partition plate is formed with an opening, and wherein a portion of the air introduced into said cold section through said air inlet is sucked into said gas turbine through said inlet port and discharged into said hot section as said exhaust gas, and another portion thereof is introduced into said hot section through said opening of the partition plate using a pressure drop in said hot section caused by said ejector effect.