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1. WO2008015821 - CARBON DIOXIDE ENGINE

Publication Number WO/2008/015821
Publication Date 07.02.2008
International Application No. PCT/JP2007/057847
International Filing Date 09.04.2007
IPC
F03G 7/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA, OR LIKE MOTORS; MECHANICAL-POWER-PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
06using expansion or contraction of bodies due to heating, cooling, moistening, drying, or the like
F01C 1/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
1Rotary-piston machines or engines
02of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
F01K 25/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
25Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
08using special vapours
10the vapours being cold, e.g. ammonia, carbon dioxide, ether
CPC
F01C 1/22
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
1Rotary-piston machines or engines
22of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth- equivalents than the outer member
F01C 21/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
CROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
21Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
18Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
F04C 2210/222
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS
2210Fluid
22gaseous, i.e. compressible
222Carbon dioxide (CO2)
Applicants
  • 有限会社新科学開発研究所 New Scientific R & D Institute Inc. [JP]/[JP] (AllExceptUS)
  • 福山 孝喜 FUKUYAMA, Koki [JP]/[JP] (UsOnly)
Inventors
  • 福山 孝喜 FUKUYAMA, Koki
Agents
  • 浅野 勝美 ASANO, Katsumi
Priority Data
2006-21394304.08.2006JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CARBON DIOXIDE ENGINE
(FR) MOTEUR À DIOXYDE DE CARBONE
(JA) 炭酸ガスエンジン
Abstract
(EN)
A carbon dioxide engine having a sealed housing (101), an inner chamber (103) having a circular cross-section and formed in the housing (101), and a rotor (115) provided in the inner chamber (103) so as to be rotatable about a rotor shaft (116). When the rotor (115) is rotated, the inner chamber (103) is partitioned into a primary operation chamber (121) and a secondary operation chamber (122). A gas supply opening (117) and gas discharge opening (119) are formed in the housing (101). The gas discharge opening is formed at a portion slightly closer to the secondary operation chamber than a diameter line passing the gas supply opening. A gas supply valve (125) for opening and closing the gas supply opening (117) is provided in the engine. In the primary operation chamber (121), high-pressure carbon dioxide (35a) is sub-expanded within the limit of the volume of the chamber, and force by the sub-expansion shifts the rotor to an expansion and discharge stroke. Because the discharge opening is “open” in the expansion and discharge stroke, the carbon dioxide expands in a chain reaction and expansion force by such expansion rotates the rotor (115). In an atmospheric pressure holding stroke, the rotor rates by inertia force.
(FR)
La présente invention concerne un moteur à dioxyde de carbone comprenant un carter (101), une chambre interne (103) à section transversale circulaire formée dans le carter (101) et un rotor (115) disposé dans la chambre interne (103) de sorte à pouvoir tourner autour d'un arbre de rotor (116). Lorsque le rotor (115) est actionné, la chambre interne (103) se divise en une chambre de fonctionnement primaire (121) et une chambre de fonctionnement secondaire (122). Un orifice d'alimentation en gaz (117) et un orifice d'évacuation de gaz (119) sont formés dans le carter (101). L'orifice d'évacuation de gaz est formé au niveau d'une partie légèrement plus proche de la chambre de fonctionnement secondaire qu'une ligne de diamètre passant par l'orifice d'alimentation en gaz. Le moteur comprend une soupape d'alimentation en gaz (125) qui ouvre et ferme l'orifice d'alimentation en gaz (117). Dans la chambre de fonctionnement primaire (121), du dioxyde de carbone sous haute pression (35a) est sous-détendu dans la limite du volume de la chambre, la force de sous-détente amenant le rotor à passer à une course de détente et d'évacuation. L'orifice d'évacuation étant ouvert dans la course de détente et d'évacuation, le dioxyde de carbone se dilate dans une réaction en chaîne et la force de décompression fait tourner le rotor (115). Dans une course de maintien de pression atmosphérique, le rotor tourne par force d'inertie.
(JA)
 密閉に形成されるハウジング101と、ハウジング101内に断面円形に形成される内室103と、内室103にロータ軸116を中心として回転可能に設けられるロータ115とからなる。ロータ115の回転の際内室103が1次作動室121及び2次作動室122に区画・形成される。ハウジング101に給気口117及び排気口119を設け、該排気口は給気口を通る直径線よりやや2次作動室側に位置する部位に設けられ、給気口117を開閉する開閉自在の給気弁125を設ける。高圧状態の炭酸ガス35aは1次作動室121内では容積の限度内で亜膨張となり、この力によりロータを膨張排出行程に移行させる。膨張排出行程では排気口が「開」となるので炭酸ガスは連鎖膨張し、この膨張力によりロータ115を回転させる。さらに大気圧保持行程ではロータは慣性力により回転する。
Also published as
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