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1. (WO1997015420) A METHOD AND APPARATUS FOR COOLING TOOLS, WORKPIECES OR THE LIKE USING LIQUEFIED GAS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/015420 International Application No.: PCT/SE1996/001364
Publication Date: 01.05.1997 International Filing Date: 23.10.1996
IPC:
B23Q 11/10 (2006.01) ,B29C 33/04 (2006.01) ,B29C 35/00 (2006.01) ,B29C 35/16 (2006.01) ,B29C 45/73 (2006.01) ,F25B 25/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
Q
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
11
Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
10
Arrangements for cooling or lubricating tools or work
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
33
Moulds or cores; Details thereof or accessories therefor
02
with incorporated heating or cooling means
04
using liquids, gas or steam
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35
Heating, cooling or curing, e.g. crosslinking, vulcanising; Apparatus therefor
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35
Heating, cooling or curing, e.g. crosslinking, vulcanising; Apparatus therefor
16
Cooling
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45
Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
17
Component parts, details or accessories; Auxiliary operations
72
Heating or cooling
73
of the mould
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
25
Machines, plant, or systems, using a combination of modes of operation covered by two or more of the groups F25B1/-F25B23/160
Applicants:
AGA AKTIEBOLAG [SE/SE]; S-181 81 Lidingö, SE (AllExceptUS)
NILSSON, Leif [SE/SE]; SE (UsOnly)
Inventors:
NILSSON, Leif; SE
Agent:
AXELSSON, Rolf ; Kransell & Wennborg AB P.O. Box 27834 S-115 93 Stockholm, SE
Priority Data:
9503733-924.10.1995SE
Title (EN) A METHOD AND APPARATUS FOR COOLING TOOLS, WORKPIECES OR THE LIKE USING LIQUEFIED GAS
(FR) PROCEDE ET APPAREIL POUR REFROIDIR DES OUTILS, DES PIECES A USINER OU ANALOGUE, A L'AIDE DE GAZ LIQUEFIE
Abstract:
(EN) A system for cooling tools, workpieces or the like with liquefied gas, preferably carbon dioxide, which is delivered to the tool or to the workpiece in its liquid state. The liquefied gas is caused to vaporize as it comes into contact with the tool or the workpiece so as to effectively cool the same. The system includes an insulated tank (1) or a gas storage pressure vessel, means for vaporizing the liquefied gas either completely or partially prior to or during its transportation through conduit means (4) to a cooling unit (3, 5) which is located in the close proximity of the tool (6) or the workpiece and in which the gas is reliquefied. The liquefied gas is thus returned to the tool (6) or to the workpiece for cooling said tool or workpiece in conjunction with re-vaporization of the liquefied gas. The invention also relates to a method for use in cooling with liquefied gas.
(FR) Procédé pour refroidir des outils, des pièces à usiner ou analogue à l'aide de gaz liquéfié, de préférence du dioxyde de carbone, qui est mis en contact à l'état liquide avec l'outil ou la pièce à usiner. Le gaz liquéfié est vaporisé au moment où il entre en contact avec l'outil ou la pièce à usiner, de façon à les refroidir efficacement. Le système comprend un récipient isolé (1) ou une cuve sous pression pour emmaganiser le gaz, un dispositif pour vaporiser en totalité ou en partie le gaz liquéfié avant ou pendant son passage dans un conduit (4) l'amenant à l'unité de refroidissement (3, 5), laquelle est située à proximité immédiate de l'outil (6) ou de la pièce à usiner et dans laquelle le gaz est reliquéfié. Le gaz liquéfié est ensuite renvoyé au niveau de l'outil (6) ou de la pièce à usiner pour les refroidir, en même temps qu'il est revaporisé. L'invention concerne également un procédé de refroidissement à l'aide de gaz liquéfié.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, 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, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Swedish (SV)
Also published as:
AU1996073562