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1. (WO2001000993) GAS ROTARY SCREW COMPRESSOR
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/000993 International Application No.: PCT/IT2000/000260
Publication Date: 04.01.2001 International Filing Date: 23.06.2000
Chapter 2 Demand Filed: 15.01.2001
IPC:
F04C 18/08 (2006.01) ,F04C 18/16 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
C
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
18
Rotary-piston pumps specially adapted for elastic fluids
08
of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
C
ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
18
Rotary-piston pumps specially adapted for elastic fluids
08
of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
12
of other than internal-axis type
14
with toothed rotary pistons
16
with helical teeth, e.g. chevron-shaped, screw type
Applicants:
VIGANO', Danilo [IT/IT]; IT (UsOnly)
TOMEI, Umberto [IT/IT]; IT (UsOnly)
DI BLASIO, Gabriele [IT/IT]; IT (UsOnly)
SAMPUTENSILI S.P.A. [IT/IT]; Via Triumvirato, 13 I-40132 Bologna, IT (AllExceptUS)
Inventors:
VIGANO', Danilo; IT
TOMEI, Umberto; IT
DI BLASIO, Gabriele; IT
Agent:
JORIO, Paolo ; Studio Torta S.r.l. Via Viotti, 9 I-10121 Torino, IT
Priority Data:
BO99A00034323.06.1999IT
Title (EN) GAS ROTARY SCREW COMPRESSOR
(FR) COMPRESSEUR À GAZ HÉLICOÏDAL
Abstract:
(EN) A gas rotary screw compressor (1), in particular, for cooling gas suitable for low-power systems, the compressor having a casing (1a) having an intake conduit (6) and a delivery conduit (7); and the casing (1a) having, internally, a three-dimensional region shaped to follow the outer profile of the helical teeth (11b) of a male rotor (11) and the helical teeth (12b) of a female rotor (12), so as to define a first intake chamber (45) to minimize the load losses of the gas stream and so fill the casing (1a) with a maximum quantity of gas.
(FR) L'invention concerne un compresseur à gaz hélicoïdal (1) destiné en particulier à refroidir un gaz utilisé dans des systèmes à faible puissance. Ce compresseur comprend un carter (1a) dans lequel sont ménagés un conduit d'admission (6) et un conduit d'évacuation (7). L'intérieur de ce carter (1a) présente par ailleurs une zone tridimensionnelle dont la forme épouse le profil extérieur des dents hélicoïdales (11b) d'un rotor mâle (11) et des dents hélicoïdales (12b) d'un rotor femelle (12), de manière à définir une première chambre d'admission (45). On peut ainsi minimiser les pertes dues à la charge du flux de gaz et remplir le carter (1a) avec une quantité maximale de gaz.
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Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)