# US 8,739,542 B1 · Closed vapor system

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- Number: US 8,739,542 B1
- Document ID: US8739542B1
- Status: Granted
- Kind: B1
- Application number: 12/803,327
- Filed: 2010-06-23
- Granted: 2014-06-03
- Earliest claimed: 2009-06-23
- Assignees: Appel Engineering Group, LLC
- Applicants: Gustaf T. Appelberg
- Inventors: Gustaf T. Appelberg
- Web page: https://patentgrep.com/patent/US8739542B1

## CPC

- F02C 1/10: Closed cycles
- F01K 15/02: for driving vehicles, e.g. locomotives
- F22B 1/281: {other than by electrical resistances or electrodes}
- 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)
- F01K: STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES (gas-turbine or jet-propulsion plants F02; nuclear power plants, engine arrangements therein G21D)
- F22B: METHODS OF STEAM GENERATION; STEAM BOILERS

## Abstract

A closed vapor system includes a boiler arranged to store a vapor and a heating source configured to heat the vapor to a predetermined temperature. A source of pressure maintains the pressure of the vapor in a range of about 100 pounds per square inch to 150 pounds per square inch. Pressurized vapor is drawn from the boiler at a pressure in the range of about 100 pounds per square inch. A motor is responsive to the torque of the pressurized vapor drawn from the boiler and is configured to rotate a shaft. A compressor pump is responsive to rotation of the motor shaft and is arranged to receive effluent vapor from the motor to repressurize the effluent vapor and return it to the boiler. The closed vapor system may function as a battery, vehicle engine and a stationary power source.

## Claims

### Claim 1

A closed vapor system, comprising:
a boiler, said boiler arranged to store a vapor;
a heating source configured to heat said vapor to a predetermined temperature in a range of 300° Fahrenheit to 358° Fahrenheit;
a compressor pump configured to maintain the pressure of said vapor in a range of 100 pounds per square inch to 150 pounds per square inch;
a first pressure reducing valve connected to said boiler for drawing the pressurized vapor from said boiler at a pressure of 100 pounds per square inch;
a motor, including a shaft, operatively connected to said first pressure reducing valve responsive to the torque of said pressurized vapor drawn from said boiler and configured to rotate said shaft, wherein said compressor pump is driven by said motor shaft and arranged to receive effluent vapor from said motor to repressurize said effluent vapor to a pressure of 160 pounds per square inch;
a one-way pressure valve located between an output of said compressor pump and an input of said boiler for recirculating said repressurized effluent vapor to said boiler.

### Claim 2 (depends on 1)

The closed vapor system as defined in claim 1 wherein said boiler further comprises an external shell, an internal metal shell and a thermal insulating material between said external shell and said internal metal shell to maintain said vapor at a desired temperature and pressure between operating cycles of said closed vapor system.

### Claim 3 (depends on 1)

The closed vapor system as defined in claim 1 further comprising a microwave source connected to said boiler and configured to produce radio frequency (RF) energy to heat said vapor to a desired temperature by direct molecular heating to provide saturated vapor.

### Claim 4 (depends on 3)

The closed vapor system as defined in claim 3 further comprising a susceptor system arranged structurally isolated within said boiler to absorb said RF energy to produce heat to convert liquid condensate to vapor.

### Claim 5 (depends on 3)

The closed vapor system as defined in claim 3 further comprising a susceptor system arranged structurally isolated within said boiler to absorb said RF energy to produce heat to melt frozen liquid condensate in said boiler.

### Claim 6 (depends on 1)

The closed vapor system as defined in claim 1 further comprising a resistive heating element system arranged structurally isolated within said boiler to heat said vapor.