EP0072363A2 - Moteur à vapeur - Google Patents

Moteur à vapeur Download PDF

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Publication number
EP0072363A2
EP0072363A2 EP82890107A EP82890107A EP0072363A2 EP 0072363 A2 EP0072363 A2 EP 0072363A2 EP 82890107 A EP82890107 A EP 82890107A EP 82890107 A EP82890107 A EP 82890107A EP 0072363 A2 EP0072363 A2 EP 0072363A2
Authority
EP
European Patent Office
Prior art keywords
working
steam
piston
cylinder
working medium
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP82890107A
Other languages
German (de)
English (en)
Other versions
EP0072363A3 (fr
Inventor
Kurt Dipl.-Ing. Schreier
Anton Kraft
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vereinigte Edelstahlwerke AG
Original Assignee
Vereinigte Edelstahlwerke AG
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 Vereinigte Edelstahlwerke AG filed Critical Vereinigte Edelstahlwerke AG
Publication of EP0072363A2 publication Critical patent/EP0072363A2/fr
Publication of EP0072363A3 publication Critical patent/EP0072363A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B11/00—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type
    • F01B11/007—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means
    • F01B11/008—Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means with actuation in the other direction by gravity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
    • F01B17/02—Engines
    • F01B17/04—Steam engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/127—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring
    • F04B9/1273—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring with actuation in the other direction by gravity

Definitions

  • the invention relates to a steam-powered engine, in particular for driving water pumps.
  • a variety of steam powered engines are known, and either a rotating motion is directly generated, e.g. in turbines, or where the rotating movement is generated by up and down pistons via a piston rod and crankshaft, or the piston of a steam engine is coupled directly to that of a pump, so that the detour via the rotating movement is not made.
  • a rotating motion is directly generated, e.g. in turbines, or where the rotating movement is generated by up and down pistons via a piston rod and crankshaft, or the piston of a steam engine is coupled directly to that of a pump, so that the detour via the rotating movement is not made.
  • it is common to all these steam-operated machines that they are designed for a minimum working pressure and that the steam supply and discharge is controlled by the piston movement, and this must reach top dead center. If the pressure of the steam is now insufficient and top dead center is not reached, such steam-operated motors cannot work.
  • Plants have already become known which have a sun-powered steam generator, the steam being processed in a conventional steam engine.
  • the solar collectors must be designed so large that the minimum working pressure is reached even with less energy.
  • relatively large areas have to be used for the installation of the solar collectors, with extensive shading occurring and the areas under the collectors not being used for agricultural purposes can. This aspect is particularly important in arid areas.
  • the aim of the present invention is to provide a steam-powered engine which is suitable for working with working media of different pressures.
  • the steam-operated motor according to the invention in particular for driving water pumps with cylinders, working pistons, piston rods, a control for the supply and discharge of the working medium, which has a closed circuit, optionally with a feed pump, a condenser, a sun-operated steam generator, in particular with a Concentrating collector, is that the control for the discharge of the working medium from the working cylinder by a controllable independently of the position of the working piston valve, slide or the like .., The closure body is actuated by the working medium. With such a configuration it is achieved that the movement of the working piston to bottom dead center can start from any position between the maximum top and bottom dead center. By actuating the closure body via the working medium, the top dead center can be optimally adapted to the energy content of the working medium.
  • the closure body is connected to an actuating piston in a cylinder, which is connected to the supply line for the working medium to the working cylinder via a line provided with a throttle, the closure body can be actuated in a particularly simple manner.
  • the throttle can also be adjustable so that it can be optimally adjusted, be it to the composition of the working medium or to the special conditions at the installation site.
  • the working medium which was used to actuate the actuating piston can be returned to the closed circuit of the working medium in a particularly simple manner, any loss being avoided.
  • the control is particularly simple and failsafe.
  • closure body can be moved into the bottom dead center position via the movement of the working piston, as a result of which the supply of the working medium can be released into the working cylinder, a particularly reliable working valve is created, which can be acted upon directly by the working medium on the one hand and on the other hand via the movement of the working piston is controlled.
  • a particularly favorable offer of the pressurized working medium, whereby the different energy supply is taken into account is that the piston feed pump which can be actuated by the working piston is arranged in the working cylinder with a spring-loaded piston which can be actuated by the movement of the working piston into the bottom dead center position and pumps the condensate from the condenser into the steam generator.
  • the piston feed pump which can be actuated by the working piston is arranged in the working cylinder with a spring-loaded piston which can be actuated by the movement of the working piston into the bottom dead center position and pumps the condensate from the condenser into the steam generator.
  • FIG. 1 shows a block diagram of the steam-powered engine with collector and condenser
  • FIG. 2 shows an overall view of the engine, partly in section
  • FIG. J shows a valve for controlling the steam supply and removal.
  • 1 means the steam-operated engine, which has a working cylinder 2, in which a working piston 3 is sealingly arranged, which is provided with a piston rod 4.
  • the piston rod 4 can be used, for example, to actuate a pump or the like.
  • the working cylinder is connected via a reusable closure member 5 via line 6 to a concentrating solar collector 7. This is connected via a line to the feed pump 9, which is arranged in the working cylinder 2.
  • the feed pump is also connected to the condenser 12 via the line 10 and an intermediate store 11.
  • the connection between the working cylinder and the condenser is made via line 13, the reusable closure element 5 and the line 14.
  • the motor now functions as follows: If the working piston is in the bottom dead center position, the collector is via line 6, the reusable closure element and the line 14 is connected directly to the working cylinder, so that working medium under pressure, for example at a temperature of 140 ° C. to 150 ° C., moves the working piston in the direction of the top dead center position. Simultaneously with this movement, the piston of the piston feed pump 9 is moved upwards by the spring 15, as a result of which liquid working medium is sucked into the pump from the intermediate container 11. In the reusable closure member, the steam enters via the line 6 and passes through the adjustable throttle 16 into the cylinder 17 of the actuating piston 18.
  • the actuating piston which could also be formed directly by a membrane, is pressurized, as a result of which the closure body 19 enters an upper one Dead center position is moved.
  • the top dead center position is thus only dependent on the movement of the closure body 19, which, however, is moved into its top dead center position not by the piston but by the working medium.
  • the working piston 3 moves downwards, it actuates the piston of the piston feed pump, as a result of which the liquid working medium is injected into the collector.
  • a pressure relief valve is provided, through which overpressure can be reduced, for example, in the solar collector.
  • an overpressure valve can also be provided in the bore 22.
  • the piston rods 4 being connected via a yoke 30.
  • the yoke actuates, via a roller 31, a cable 32 and a pump rod 33, the deep-hole pump which is arranged in a pipeline 25 but is not shown and through which water the pipeline 25 is moved upwards.
  • the working cylinder 2 which is provided with thermal insulation 26 (shown only in the right half of the cylinder shown in section), the piston is connected to the guide plate 28 of the piston rod in a sealing manner against the atmosphere by means of a bellows 27.
  • a bellows 27 Such a construction prevents loss of the working medium.
  • FIG. 2 The pipes and the designations of the individual parts of FIG. 2 correspond to those of FIG. 1, with particular which is clearly shown the actuator 29 for the plunger 20 of the reusable closure member.
  • the 3e actuating device is formed by a lever attached to the pump rod, which, when it moves downwards, which occurs simultaneously with the working piston, also presses the closure body 19 downward.
  • the condenser 12 is air-cooled, but cooling using the water pumped via the pipeline 25 can also be particularly advantageous when using a working medium other than water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP82890107A 1981-08-04 1982-07-28 Moteur à vapeur Withdrawn EP0072363A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3439/81 1981-08-04
AT343981 1981-08-04

Publications (2)

Publication Number Publication Date
EP0072363A2 true EP0072363A2 (fr) 1983-02-16
EP0072363A3 EP0072363A3 (fr) 1984-05-23

Family

ID=3550527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82890107A Withdrawn EP0072363A3 (fr) 1981-08-04 1982-07-28 Moteur à vapeur

Country Status (1)

Country Link
EP (1) EP0072363A3 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1880650A (en) * 1928-09-28 1932-10-04 Edward V Zagst Motor
FR2024955A1 (fr) * 1968-11-29 1970-09-04 Philips Nv Moteur actionné par un fluide
FR2083965A5 (fr) * 1970-03-24 1971-12-17 Applied Power Ind Inc
FR2333944A1 (fr) * 1975-12-01 1977-07-01 Ecole Nale Sup Arts Metiers Moteur a vapeur a course alternative utilisant l'energie solaire
US4227866A (en) * 1976-12-16 1980-10-14 Solar Pump Corporation Solar energy device
US4240329A (en) * 1979-01-05 1980-12-23 Proteus Corporation Fluid pressure servo detent mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1880650A (en) * 1928-09-28 1932-10-04 Edward V Zagst Motor
FR2024955A1 (fr) * 1968-11-29 1970-09-04 Philips Nv Moteur actionné par un fluide
FR2083965A5 (fr) * 1970-03-24 1971-12-17 Applied Power Ind Inc
FR2333944A1 (fr) * 1975-12-01 1977-07-01 Ecole Nale Sup Arts Metiers Moteur a vapeur a course alternative utilisant l'energie solaire
US4227866A (en) * 1976-12-16 1980-10-14 Solar Pump Corporation Solar energy device
US4240329A (en) * 1979-01-05 1980-12-23 Proteus Corporation Fluid pressure servo detent mechanism

Also Published As

Publication number Publication date
EP0072363A3 (fr) 1984-05-23

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Effective date: 19850815

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Inventor name: KRAFT, ANTON

Inventor name: SCHREIER, KURT, DIPL.-ING.