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Machine translation
1. (WO1979000652) MACHINE FOR EXPANSION OR COMPRESSION OF GASES OR VAPOURS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000652    International Application No.:    PCT/SE1979/000037
Publication Date: 06.09.1979 International Filing Date: 19.02.1979
IPC:
F01C 3/02 (2006.01)
Applicants:
Inventors:
Priority Data:
780584 22.02.1978 FI
Title (EN) MACHINE FOR EXPANSION OR COMPRESSION OF GASES OR VAPOURS
(FR) MACHINE DE DETENTE OU DE COMPRESSION DE GAZ OU DE VAPEURS
Abstract: front page image
(EN)A machine of positive displacement type for the expansion or compression of elastic fluids, wherein torque created or applied effects directly the power shaft, bearings of the power shaft are loaded only by weights of corresponding rotary masses, sealing lubrication is not used and the structure of the machine should accountably facilitate achieving of low losses. The machine includes working spaces (5) defined by a rotary working member (1) and a surrounding body structure (4), and moving circumferentially with the working member, their main direction joining with said circumferential direction. The working spaces (5) are divided into a process space (6) and a transferring space (7) by a partition wall (15) belonging to rotary non-working reacting members (8) which are perpendicular to the working member and synchronized therewith and of so firm structure that they can transmit to the outside of the working member great forces due to a pressure difference between said spaces (6, 7). Said forces can be compensated by a programmed pressure effect onto a counter-surface (11) of the reacting member. Depending on the direction of rotation of the working member either expansion or compression of elastic fluid circulating through the machine is performed. Rotary valves (23) are preferably used for achieving a cyclic closing of the process space (6). A momentary area of the valve opening can essentially correspond to a momentary area of the partition wall (15). A partition wall forming part (10) of the reacting member is preferably provided with only one transition sector (77) for changing the process cycle, whence requirements as to synchronization are low. Light sealing members (110) are preferably used to reduce remaining loss effects due to error in synchronization. Clearances not depending on synchronization may be maintained small by using temperature control of respective parts. A major part of the clearances can be provided with a labyrinth seal (61, 103, 104) for reducing the speed of gas leak.
(FR)Une machine du type a deplacement positif pour la detente ou la compression de fluides compressibles, dans laquelle le couple cree ou applique exerce un effet direct sur l"arbre de transmission, les paliers de l"arbre ne sont charges que par les poids de masses rotatives correspondantes, la lubrification etanche n"est pas utilisee, et la structure devrait faciliter l"obtention de faibles pertes. La machine comprend des volumes de travail (5) delimites par un element rotatif (61) et un corps (4), animes d"un mouvement circonferentiel en meme temps que l"element (1), leur direction principale coincidant avec ladite direction circonferentielle. Les volumes de travail (5) sont subdivises en un espace de traitement (6) et un espace de transfert (7) separes par une paroi (15) qui fait partie d"elements rotatifs de reaction (8) perpendiculaires a l"element de travail synchronises avec celui-ci, et dont la solidite est telle qu"elle leur permet de transmettre a l"exterieur de l"element de travail des forces importantes produites par la difference de pression entre lesdits espaces (6, 7). Ces forces peuvent etre compensees par une contre-pression programmee exercee sur une surface (11) de l"element de reaction. Selon le sens de rotation de l"element de travail, le fluide compressible circulant dans la machine est detendu ou comprime. Les vannes rotatives (23) sont utilisees de preference pour assurer une fermeture cyclique de l"espace de traitement (6). La surface instantanee de l"ouverture de vanne peut correspondre sensiblement a la surface instantanee de la paroi de separation (15). La poutre (10) de l"element de reaction formant paroi de separation comprend de preference un seul secteur de transition (77) pour modifier le cycle du procede, et les exigences de synchronisation sont limitees. On utilise de preference des elements d"etancheite (110) legers afin de reduire les effets de pertes provoques par des erreurs de synchronisation. On peut maintenir les fuites qui ne dependent pas de la synchronisation a un faible niveau en controlant la temperature des differentes parties. La plupart des passages formant fuite peuvent etre munis d"un joint d"etancheite (61, 103, 104) reduisant la vitesse du gaz de fuite.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)