§
Luxuse
Patent Intelligence
Sign In
Patent FR774372A successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0051493A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Heat exchanging system for an open internal combustion cycle

Assignee: Mitsubishi Gas Chemical Co Inc
•
Filing: 1981-11-03
•
Granted: —
•
Expires: 2001-11-03
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A heat.exchanging system for a heat engine wherein compressed air or gas including air as the main part thereof is used as combustion supporting gas, working medium gas or the like and heat recovery is carried out by means of mixture which is obtained by adding liquid phase water to the compressed air or the gas including air as the main part thereof, the heat exchanging system for the open internal combustion cycle comprising: a multi-step air compressor; intermediate cooling means, or both intermediate cooling means and water injecting means or water contacting means located at the intermediate output of the air compressor; and liquid phase water injecting means or contacting means located at the last-step output of the air compressor; the heat exchanging system for the open internal combustion cycle being characterized in that the liquid phase water which is mixed with the compressed gas by means of the injecting means or contacting means is used as intermediate cooling heat medium, or both intermediate cooling heat medium and water to be injected to the intermediate compressed air.

Inventors

  • 👤 Hiromi Nakamura
  • 👤 Norio Sayama

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-05 14:45
CPC Classifications
F; F01; F01K; F01K21/00; F01K21/04; F01K21/047; F02; F02C; F02C7/00; F02C7/12; F02C7/14; F02C7/141; F02C7/143; Y; Y02; Y02E; Y02E20/00; Y02E20/16

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 179 words
A heat exchanging system for a heat engine wherein compressed air or gas including air as the main part thereof is used as combustion supporting gas, working medium gas or the like and heat recovery is carried out by means of mixture which is obtained by adding liquid phase water to the compressed air or the gas including air as the main part thereof, the heat exchanging system for the open internal combustion cycle comprising: a multi-step air compressor; intermediate cooling means, or both intermediate cooling means and water injecting means or water contacting means located at the intermediate output of the air compressor; and liquid phase water injecting means or contacting means located at the last-step output of the air compressor; the heat exchanging system for the open internal combustion cycle being characterized in that the liquid phase water which is mixed with the compressed gas by means of the injecting means or contacting means is used as intermediate cooling heat medium, or both intermediate cooling heat medium and water to be injected to the intermediate compressed air.
Claim 2
Dependent Claim 179 words
A heat exchanging system for a heat engine wherein compressed air or gas including air as the main part thereof is used as combustion supporting gas, working medium gas or the like and heat recovery is carried out by means of mixture which is obtained by adding liquid phase water to the compressed air or the gas including air as the main part thereof, the heat exchanging system for the open internal combustion cycle comprising: a multi-step air compressor; intermediate cooling means, or both intermediate cooling means and water injecting means or water contacting means located at the intermediate output of the air compressor; and liquid phase water injecting means or contacting means located at the last-step output of the air compressor; the heat exchanging system for the open internal combustion cycle being characterized in that the liquid phase water which is mixed with the compressed gas by means of the injecting means or contacting means is used as intermediate cooling heat medium, or both intermediate cooling heat medium and water to be injected to the intermediate compressed air.
Claim 3
Dependent Claim 16 words
The system of Claim 1 wherein the open internal combustion cycle is a gas turbine cycle.
Claim 4
Dependent Claim 25 words
The system of Claim 1 wherein the amount of liquid phase water for injection is 0.1 - 0.3 Kmole per 1 Kmole of absorption air.
Claim 5
Dependent Claim 23 words
The system of Claim 1 wherein the mixture of the compressed air and the liquid phase water is a multi-phase mixture of air/steam/water.
Claim 6
Dependent Claim 26 words
The system of Claim 1 wherein the temperature of intermediate compressed air or compressed air at each output of the air compressor is 250°C or less.
Claim 7
Dependent Claim 46 words
The system of Claim 1 wherein compressed gaseous fuel or volatile liquid fuel is used as fuel and heat recovery is accomplished by means of steam or a mixture of water/steam which is obtained by adding water to the fuel or contacting water with the fuel.
Claim 8
Dependent Claim 23 words
The system of Claim 1 wherein water for injection or contact is also used as heat recovering medium for the turbine exhaust gas.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag