WO2009140944A3 - Conversion of pressure energy of gases and vapour at low initial pressures into mechanical energy - Google Patents

Conversion of pressure energy of gases and vapour at low initial pressures into mechanical energy Download PDF

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Publication number
WO2009140944A3
WO2009140944A3 PCT/DE2009/000671 DE2009000671W WO2009140944A3 WO 2009140944 A3 WO2009140944 A3 WO 2009140944A3 DE 2009000671 W DE2009000671 W DE 2009000671W WO 2009140944 A3 WO2009140944 A3 WO 2009140944A3
Authority
WO
WIPO (PCT)
Prior art keywords
expansion
vapour
assemblies
gases
sub
Prior art date
Application number
PCT/DE2009/000671
Other languages
German (de)
French (fr)
Other versions
WO2009140944A2 (en
Inventor
Erwin Oser
Hubert Hamm
Original Assignee
Hamm & Dr. Oser Gbr
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hamm & Dr. Oser Gbr filed Critical Hamm & Dr. Oser Gbr
Priority to DE112009001759T priority Critical patent/DE112009001759A5/en
Publication of WO2009140944A2 publication Critical patent/WO2009140944A2/en
Publication of WO2009140944A3 publication Critical patent/WO2009140944A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/02—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
    • F01K7/025—Consecutive expansion in a turbine or a positive displacement engine

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

The invention relates to a method for carrying out the expansion of overpressure gases or vapour in an energy-efficient manner in order to convert the pressure energy into mechanical effort even when the gases or vapour is or are at a low initial pressure, and to a device for carrying out said method. The invention uses expansion sub-assemblies with favourable flow ratios and low inner expansion for said conversion, preferably in the form of piston expanders. Sub-assemblies of this type achieve excellent machine efficiency under the aforementioned operating conditions. If the expansion ratios exceed the preferred application ranges of the expansion sub-assemblies, the expansion can be advantageously carried out in two successive sub-assemblies.
PCT/DE2009/000671 2008-05-17 2009-05-12 Conversion of pressure energy of gases and vapour at low initial pressures into mechanical energy WO2009140944A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112009001759T DE112009001759A5 (en) 2008-05-17 2009-05-12 Conversion of the pressure energy of gases and vapors at low output pressures into mechanical energy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008024116.4 2008-05-17
DE200810024116 DE102008024116A1 (en) 2008-05-17 2008-05-17 Conversion of the pressure energy of gases and vapors at low output pressures into mechanical energy

Publications (2)

Publication Number Publication Date
WO2009140944A2 WO2009140944A2 (en) 2009-11-26
WO2009140944A3 true WO2009140944A3 (en) 2012-08-09

Family

ID=41180512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2009/000671 WO2009140944A2 (en) 2008-05-17 2009-05-12 Conversion of pressure energy of gases and vapour at low initial pressures into mechanical energy

Country Status (2)

Country Link
DE (2) DE102008024116A1 (en)
WO (1) WO2009140944A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013112024A1 (en) * 2013-10-31 2015-04-30 ENVA Systems GmbH Positive displacement blower with a sealing system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5833446A (en) * 1996-01-31 1998-11-10 Carrier Corporation Deriving mechanical power by expanding a liquid to its vapour
WO2005061858A1 (en) * 2003-12-22 2005-07-07 Erwin Oser Method for converting heat energy into mechanical energy with a low-pressure expansion device
DE10361223A1 (en) * 2003-12-24 2005-07-21 Erwin Dr. Oser Method for converting thermal energy into mechanical energy uses low-pressure expansion device to expand vaporous working medium whereby energy is returned to evaporator used to evaporate another working medium
DE102004014101A1 (en) * 2004-03-23 2005-10-13 Erwin Dr. Oser Method for electric current generation at a heating installation involves utilization of low-pressure vapor expansion to drive the generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5833446A (en) * 1996-01-31 1998-11-10 Carrier Corporation Deriving mechanical power by expanding a liquid to its vapour
WO2005061858A1 (en) * 2003-12-22 2005-07-07 Erwin Oser Method for converting heat energy into mechanical energy with a low-pressure expansion device
DE10361223A1 (en) * 2003-12-24 2005-07-21 Erwin Dr. Oser Method for converting thermal energy into mechanical energy uses low-pressure expansion device to expand vaporous working medium whereby energy is returned to evaporator used to evaporate another working medium
DE102004014101A1 (en) * 2004-03-23 2005-10-13 Erwin Dr. Oser Method for electric current generation at a heating installation involves utilization of low-pressure vapor expansion to drive the generator

Also Published As

Publication number Publication date
DE102008024116A1 (en) 2009-11-19
DE112009001759A5 (en) 2011-04-21
WO2009140944A2 (en) 2009-11-26

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