WO1986004958A1 - Moteur stirling - Google Patents

Moteur stirling Download PDF

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Publication number
WO1986004958A1
WO1986004958A1 PCT/JP1986/000056 JP8600056W WO8604958A1 WO 1986004958 A1 WO1986004958 A1 WO 1986004958A1 JP 8600056 W JP8600056 W JP 8600056W WO 8604958 A1 WO8604958 A1 WO 8604958A1
Authority
WO
WIPO (PCT)
Prior art keywords
power piston
space
oil
cylinder
piston
Prior art date
Application number
PCT/JP1986/000056
Other languages
English (en)
Japanese (ja)
Inventor
Tetsuya Honda
Toshihide Koda
Kazuo Kashiwamura
Kiyoshi Taketoh
Tadahiro Yoshida
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
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 Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Publication of WO1986004958A1 publication Critical patent/WO1986004958A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/0535—Seals or sealing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2243/00—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes
    • F02G2243/02—Stirling type engines having closed regenerative thermodynamic cycles with flow controlled by volume changes having pistons and displacers in the same cylinder
    • F02G2243/04—Crank-connecting-rod drives
    • F02G2243/08—External regenerators, e.g. "Rankine Napier" engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2253/00—Seals
    • F02G2253/02—Reciprocating piston seals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2270/00—Constructional features
    • F02G2270/50—Crosshead guiding pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2270/00—Constructional features
    • F02G2270/85—Crankshafts

Definitions

  • the present invention relates to a starting engine, and more particularly to an improvement in operation reliability by preventing oil propagation and a reduction in weight and size.
  • Fig. 1 is shown, for example, in STIRLING ENGINE (OXFORD UNIVERSITY PRESS 1980) by G. WALKER. It is a cross-sectional view of such a conventional stirling engine.
  • (1) is a crankcase, in which all parts of the stirling engine are assembled and assembled based on this part.
  • ( 2 ) is a flange fixed to the hole machined in the crank case (1) with bolts or other fastening parts, (is a flange fixed to the crank case (1) as in the flange ( 2 ).
  • ( 4 ) is a flange fixed to the crankcase ( 4 )
  • ( 5 ) is a bearing fixed to the bearing housing ( 3 )
  • ( 6 ) is a flange
  • the bearing fixed to ( 2 ) the crankshaft (7), which is held in rotation by the bearings (5) and (6), and is used to transfer the power generated by the staring engine to the outside It is transmitted to.
  • ( 8 ) is a mechanical 'seal attached to the crankshaft (which has the effect of sealing the gas inside the crankcase (1).
  • ( 9 ) and 0 are the crankshaft shafts. This balance weight is used to balance the rotation of the shaft, and is fixed to the crank shaft ( 7 ).
  • ( ⁇ ), ⁇ 3 ⁇ 4 are power piston connectors connected to the crankshaft (7) by bearings, and are connected to power piston connectors, ⁇ Crosshead, including powerstone rods and nozzles.
  • ⁇ ⁇ ⁇ is connected.
  • the outer circumference of the crosshead is engaged with the inner circumference of the cylinder with a bearing effect so that it can reciprocate.
  • ⁇ Is an airtight wall which is in close contact with the power piston rod 4 and the cylinder ⁇ , and is fitted with a mouth seal (not shown).
  • the power piston is from the crosshead side. This prevents oil from spreading to the ⁇ side and gas inflow.
  • ⁇ Is a pressure buffer chamber with a relatively large volume that absorbs pressure fluctuations generated in the space between the power piston ⁇ and the airtight wall ⁇ during operation of the Stirling engine.
  • ⁇ Is a displacer connector, which is rotatably connected to the crankshaft and bearings.
  • the piston door Npin, ⁇ in the lock de for de Lee Buresa, the piston tons pin ⁇ is coupled to the display server for the child Nro' de ⁇ as a contact, Mataku Russia Suhe' de, Russia for Nono 0 Wa over piston tons head of 4>, which is fixedly coupled to the de-spray services t ⁇ through the Nono 0 Wa over piston t ⁇ .
  • ⁇ Is the lubricating oil for lubricating the moving parts of the Stirling engine that has accumulated at the bottom of the crankcase (1).
  • the present invention has been made to solve such problems, and by preventing oil from propagating to the power piston side, a highly efficient and reliable starting machine.
  • the purpose is to obtain.
  • Another object of the present invention is to provide a small and lightweight starting engine in addition to the above objects.
  • a staring engine includes a power piston for obtaining an output of the staring engine, a power piston rod connected to the power piston, and a power piston rod connected to the power piston.
  • a cross head that is connected to the power piston through a rod for the service piston and that reciprocates in the same manner as the power piston is provided in the cylinder.
  • an oil absorbing material that lubricates between the cylinder and the cylinder and absorbs oil existing in the space between the crosshead and the power piston.
  • a staring engine in the above-mentioned engine, further includes a mechanism for converting a reciprocating motion into a rotational motion, and a crank case for housing the mechanism.
  • the space in which the oil absorbing material is placed communicates with the crank chamber.
  • the oil absorbent having air permeability and oil absorbency absorbs oil scattered from the crosshead side. Also, because the oil absorbent is in contact with the rod for power piston, Oil adhering to the piston rod can also be absorbed, so if there is enough space to prevent the oil absorbent from contacting the power piston, the oil will not propagate to the power piston side. As a result, the operating efficiency and reliability of the starting engine can be improved.
  • the crankcase by communicating the crankcase with the space containing the oil absorbing material, when the oil absorbed by the oil absorbing material becomes an appropriate amount, the oil is absorbed by gravity. Then, it returns to the bottom of the crankcase, and the effect of the invention can be maintained for a long time. Furthermore, when these communication holes are used in combination as a gas flow path, the inside of the crankcase can be used as a buffer chamber for pressure fluctuations. Therefore, it is not necessary to provide a buffer chamber for pressure fluctuations outside, and the Stirling engine can be reduced in size and weight.
  • FIG. 1 is a cross-sectional view showing a conventional starting engine
  • FIG. 2 is a cross-sectional view showing one embodiment of the present invention
  • FIG. 3 shows an oil absorbing material according to another embodiment of the present invention. It is sectional drawing. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 2 is a cross-sectional view showing an embodiment of the present invention, in which (1) to ⁇ and ⁇ to ⁇ are exactly the same as those of the above-mentioned conventional device. -belongs to. Is an oil-absorbing material provided in the space between the crosshead ⁇ and the power screw ⁇ which is made of a breathable and oil-absorbing material. Absorbs oil splattered from the door and oil attached to the powerston rod. The oil absorbing material is connected to and held by the power piston rod and reciprocates. (18a) and Cl 8b) are the first and second communication holes, respectively, that connect the space containing the oil absorbent (1?) And the space in the crankcase, that is, the space in the crankcase (1). Yes, (18a) is provided on the crosshead ( ⁇ ), and (18b) is provided on the wall of the cylinder ⁇ and the crankcase (1).
  • the power piston rod has an inner diameter of
  • the outer diameter of ⁇ and the outer diameter are oil absorbers with the same diameter as the inner diameter of cylinder ⁇ ), but the outer diameter is smaller than the inner diameter of cylinder ⁇ as shown in Fig. 3.
  • the same effect can be obtained by fixing the oil absorbent ⁇ with a smaller diameter with the oil absorbent retainer ⁇ fixed to the cylinder (6).
  • the material of the oil absorbent ⁇ is partially or entirely made of resin-based sponge, foamed metal, or mesh metal or a layer thereof, and is air-permeable and oil-absorbent. Anything should do.
  • the oil absorbed by the oil absorbing material ⁇ is returned to the oil reservoir at the bottom of the original crankcase (1) to maintain the prevention of oil transmission to the power biston ⁇ side for a long time.
  • the one provided in the crosshead ⁇ is the communication hole (18a), and the one provided in the cylinder is
  • the communication holes Cl8a) and (18b) can also be used as a gas flow path for using the crankcase (1) as a buffer chamber for pressure fluctuation.
  • the present invention is used for preventing the propagation of lubricant in a Stirling engine, but can be applied to prevent the propagation of lubricant in other equipment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

Dans une structure permettant d'empêcher la propagation de l'huile lubrifiante dans un moteur Stirling, l'huile lubrifiante avec laquelle la partie entre une tête de piston (13) et un cylindre (16) a été graissée et qui est éparpillée dans un espace compris entre la tête de piston (13) et un piston (15), est absorbée par un organe (17) absorbant l'huile ménagé dans le même espace, afin de prévenir la propagation de l'huile lubrifiante de la tête de piston (13) au piston (15) et ainsi améliorer le rendement et la fiabilité du moteur Stirling.
PCT/JP1986/000056 1985-02-14 1986-02-12 Moteur stirling WO1986004958A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60/26815 1985-02-14
JP2681585A JPS61187565A (ja) 1985-02-14 1985-02-14 スタ−リング機関

Publications (1)

Publication Number Publication Date
WO1986004958A1 true WO1986004958A1 (fr) 1986-08-28

Family

ID=12203775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1986/000056 WO1986004958A1 (fr) 1985-02-14 1986-02-12 Moteur stirling

Country Status (2)

Country Link
JP (1) JPS61187565A (fr)
WO (1) WO1986004958A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239240A1 (fr) * 1986-02-21 1987-09-30 Mitsubishi Denki Kabushiki Kaisha Appareil pour empêcher la montée de l'huile dans un moteur Stirling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6210458A (ja) * 1985-07-05 1987-01-19 Matsushita Electric Ind Co Ltd スタ−リング機関

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878681A (en) * 1972-06-07 1975-04-22 United Stirling Ab & Co Hot gas engine combustion chambers
JPS5638543A (en) * 1979-09-06 1981-04-13 Nissan Motor Co Ltd Oil recovering device for hot-gas operated machine
JPS5985457A (ja) * 1982-11-04 1984-05-17 Mitsubishi Electric Corp スタ−リングエンジルのシ−ル構造
JPS60173350A (ja) * 1984-02-20 1985-09-06 Toshiba Corp 往復動軸受装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3878681A (en) * 1972-06-07 1975-04-22 United Stirling Ab & Co Hot gas engine combustion chambers
JPS5638543A (en) * 1979-09-06 1981-04-13 Nissan Motor Co Ltd Oil recovering device for hot-gas operated machine
JPS5985457A (ja) * 1982-11-04 1984-05-17 Mitsubishi Electric Corp スタ−リングエンジルのシ−ル構造
JPS60173350A (ja) * 1984-02-20 1985-09-06 Toshiba Corp 往復動軸受装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0239240A1 (fr) * 1986-02-21 1987-09-30 Mitsubishi Denki Kabushiki Kaisha Appareil pour empêcher la montée de l'huile dans un moteur Stirling

Also Published As

Publication number Publication date
JPS61187565A (ja) 1986-08-21

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