WO2007017429A2 - Apparatus for recovering and converting energy - Google Patents

Apparatus for recovering and converting energy Download PDF

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Publication number
WO2007017429A2
WO2007017429A2 PCT/EP2006/064945 EP2006064945W WO2007017429A2 WO 2007017429 A2 WO2007017429 A2 WO 2007017429A2 EP 2006064945 W EP2006064945 W EP 2006064945W WO 2007017429 A2 WO2007017429 A2 WO 2007017429A2
Authority
WO
WIPO (PCT)
Prior art keywords
converting
energy
pneumatic
recovering
discharged air
Prior art date
Application number
PCT/EP2006/064945
Other languages
French (fr)
Other versions
WO2007017429A3 (en
Inventor
Matteo Zoppas
Giampietro Pittari
Federico Bardini
Moris Polentes
Original Assignee
S.I.P.A. Società Industrializzazione Progettazione E Automazione S.P.A.
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 S.I.P.A. Società Industrializzazione Progettazione E Automazione S.P.A. filed Critical S.I.P.A. Società Industrializzazione Progettazione E Automazione S.P.A.
Priority to EP06792642A priority Critical patent/EP1919691A2/en
Publication of WO2007017429A2 publication Critical patent/WO2007017429A2/en
Publication of WO2007017429A3 publication Critical patent/WO2007017429A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/78—Measuring, controlling or regulating
    • B29C49/783—Measuring, controlling or regulating blowing pressure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/4284—Means for recycling or reusing auxiliaries or materials, e.g. blowing fluids or energy
    • B29C49/4287—Means for recycling or reusing auxiliaries or materials, e.g. blowing fluids or energy for use outside the blow-moulding apparatus, e.g. generating power or as pressurized plant air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the present invention relates to an apparatus for recovering and converting the pneumatic energy in discharged air, coming from the blow cavities of blow mold machines used to produce plastic containers, for example bottles.
  • Prior art
  • a reciprocating engine connected to the reactor to receive a reactor effluent so as to operate the pistons of the reciprocating engine by means of the expansion of said effluent
  • the pistons of the reciprocating engine in turn drive a crankshaft by means of a universal joint that can supply power to compressors or drive a generator to produce electricity.
  • single-stage machine for producing containers such as bottles, jars, etc, means a single machine that performs the injection and subsequent stretching and blow forming processes to transform PET granules into the blown container.
  • blow machine means, instead, a machine that performs a heating process and subsequent stretching and blow forming processes to transform pre-formed workpieces, obtained separately using an injection machine, into blown containers.
  • a main purpose of the present invention is to produce an apparatus for recovering and converting the pneumatic energy in the discharged air, coming from the blow cavities of blow mold machines used to make plastic containers, that allows the discharged air to be recovered and made available at a predetermined average pressure and the subsequent conversion of the recovered pneumatic energy into electrical energy.
  • Another purpose of the device according to the invention is to optimize the energy recovery and conversion process, so as to obtain the highest possible level of efficiency.
  • the present invention achieves the purposes described above with an apparatus for recovering and converting the pneumatic energy in the discharged air, coming from the blow cavities of blow mold machines used to make plastic containers that, in accordance with that set forth in claim 1 , recovery means for recovering said discharged air leaving the blow cavities of said blow mold machines at a first pressure and means of converting said pneumatic energy into electrical energy, said converting means being arranged downstream of said recovery means.
  • the recovery of the discharged air advantageously involves the use of pneumatic valves and sensors capable of following the pressure profile of the compressed air, during the pressure let-down of the blow cavities, and making said air available at a predetermined average pressure to be used again.
  • a further advantage consists of the fact that the apparatus, according to the present invention, comprises frequency controlling means to allow on the one hand the optimization of efficiency by adjusting the angular speed of the pneumatic motor, and on the other the synchronization of the electrical energy that is obtained at the appropriate voltage and frequency values so that it can be transferred to the supply mains.
  • FIG. 1 shows a side view of the recovery and conversion apparatus according to the invention
  • Fig. 2 shows a view from the top of the apparatus in Fig. 1 ;
  • Fig. 3 shows a graph with the performance trend of the apparatus according to the invention. Detailed description of a preferred embodiment of the invention
  • an apparatus for recovering and converting the pneumatic energy in the discharged air, coming from the blow cavities of single-stage or blow machines used to produce containers, comprising:
  • the means for recovering the blowing air comprise a system, comprising in particular pneumatic valves and sensors, capable of following the pressure profile of the compressed air during the pressure let-down of the blow cavities.
  • Said recovery means advantageously, make the recovered discharged air available at a predetermined average pressure, preferably varying within a range of between 10 and 12 bar, so that it can be adjusted by suitable controlling means to a predetermined constant pressure, preferably equal to approximately 6 ⁇ 7 bar, to achieve an optimum supply to the pneumatic motor.
  • the means of converting the pneumatic energy in the recovered discharged air comprise: - an inlet duct 1 through which the recovered air is fed at said predetermined constant pressure;
  • the pneumatic motor 2 connected by means of the connecting joint 3 to the generator 4, for example an asynchronous motor, is driven by the discharged air, recovered and adjusted to the predetermined constant pressure and fed through the inlet duct 1 on the apparatus, and transfers the energy to the asynchronous motor converting the residual pneumatic energy in the compressed air into electrical energy. Once it has been re-used, said air is discharged from the apparatus through the outlet 5.
  • the generator 4 for example an asynchronous motor
  • air that is discharged through the outlet 5, while not containing any pneumatic energy is nonetheless dry air and can thus be re-used a second time and sent, for example, by means of suitable conveying means to the cabinet to keep the dew point down or to a dryer to dry the grains of plastic material prior to extrusion.
  • the electronic means of control and automation in the case of the generator consisting of an asynchronous motor, comprise:
  • EMC electromagnetic compatibility filter
  • - a second frequency converter for transferring the converted energy to the mains
  • - electromechanical devices for controlling and protecting the equipment of the apparatus, such as switches, sectioning devices, fuses, etc.;
  • the first frequency converter supplies the asynchronous motor and, thanks to the use of suitable algorithms and settings stored on the electronic board, controls the angular speed of the pneumatic motor by operating the electrical generator.
  • the electrical energy regeneration process is optimized, to achieve a level of efficiency of approximately 90%.
  • the second frequency converter converts the electrical energy generated by the electrical generator 4, synchronizing it to the appropriate voltage and frequency values so that it can be transferred to the electrical supply system.
  • the method developed to optimize the regenerated power is based on balancing the pneumatic and electrical energy, so that, developing the respective equations, the optimal value of the percentage of use of the generator is expressed as a function of the pressure supplied to the pneumatic motor.
  • the levels of efficiency thus obtained and measured remain very high across the system's entire main operating range, corresponding to between approx. 1500 and 2300 rpm, preferably equal to or more than 2000 rpm, as illustrated in the diagram in Fig. 3.
  • Said diagram illustrates the performance of the apparatus according to the invention when the number of rpm changes at a nominal controlled pneumatic motor supply pressure of 6 bar.
  • the curve 6 represents the performance trend of the energy recovery and conversion apparatus.
  • the curves 7, 8 and 9 represent, respectively, the mechanical power trend, the regenerated power trend and the difference between said mechanical and regenerated powers, i.e. the power dissipated during the operation of the apparatus.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Apparatus for recovering and converting the pneumatic energy in the discharged air, coming from the blow cavities of blow mold machines used to make plastic containers, capable of recovering the discharged air and of making it available for use at a predetermined average pressure and of subsequently converting the recovered pneumatic energy into electrical energy

Description

Apparatus for recovering and converting energy
DESCRIPTION Field of the invention
The present invention relates to an apparatus for recovering and converting the pneumatic energy in discharged air, coming from the blow cavities of blow mold machines used to produce plastic containers, for example bottles. Prior art
Different apparatus or methods for recovering energy starting from air or other pressurized gases, used in the relative systems of different industrial processes are known in the prior art.
One example of such a system is described in document EP44738. This system allows the recovery of energy from a pressurized reactor and comprises
- a reactor,
- a reciprocating engine, connected to the reactor to receive a reactor effluent so as to operate the pistons of the reciprocating engine by means of the expansion of said effluent,
- and recovery equipment downstream of the engine to recover the products of the effluent.
The pistons of the reciprocating engine in turn drive a crankshaft by means of a universal joint that can supply power to compressors or drive a generator to produce electricity.
Furthermore, other documents describe methods of recovering the pneumatic energy contained in industrial process gases, which may or may not be combined with the use of the heat energy contained in the gases present or produced in different large plants. Said systems are not suitable for use in cases in which there is a more limited energy consumption.
In the production of bottles or other containers made of plastic, generally PET, the blow molding process requires the use of considerable amounts of pressurized air that is supplied to the blow cavities of single-stage machines or blow machines. The term single-stage machine for producing containers, such as bottles, jars, etc, means a single machine that performs the injection and subsequent stretching and blow forming processes to transform PET granules into the blown container. The term blow machine means, instead, a machine that performs a heating process and subsequent stretching and blow forming processes to transform pre-formed workpieces, obtained separately using an injection machine, into blown containers. At the end of the blow molding operation the residual pneumatic energy in the compressed air, coming from the blow cavity, is generally lost and there are currently no systems or apparatus fitted to this type of machine that allow this pneumatic energy to be recovered and converted into electrical or other forms of energy. Given that the residual pressure in this blowing air is certainly not negligible and that these machines are used to perform continuous processes, not recovering and converting said pneumatic energy means that a considerable amount of the energy used by these machines is actually wasted.
The need is therefore felt to produce an apparatus for recovering and converting the pneumatic energy in air discharged from blow mold machines used to make plastic containers.
Summary of the invention A main purpose of the present invention is to produce an apparatus for recovering and converting the pneumatic energy in the discharged air, coming from the blow cavities of blow mold machines used to make plastic containers, that allows the discharged air to be recovered and made available at a predetermined average pressure and the subsequent conversion of the recovered pneumatic energy into electrical energy.
Another purpose of the device according to the invention is to optimize the energy recovery and conversion process, so as to obtain the highest possible level of efficiency.
The present invention achieves the purposes described above with an apparatus for recovering and converting the pneumatic energy in the discharged air, coming from the blow cavities of blow mold machines used to make plastic containers that, in accordance with that set forth in claim 1 , recovery means for recovering said discharged air leaving the blow cavities of said blow mold machines at a first pressure and means of converting said pneumatic energy into electrical energy, said converting means being arranged downstream of said recovery means.
The recovery of the discharged air advantageously involves the use of pneumatic valves and sensors capable of following the pressure profile of the compressed air, during the pressure let-down of the blow cavities, and making said air available at a predetermined average pressure to be used again.
A further advantage consists of the fact that the apparatus, according to the present invention, comprises frequency controlling means to allow on the one hand the optimization of efficiency by adjusting the angular speed of the pneumatic motor, and on the other the synchronization of the electrical energy that is obtained at the appropriate voltage and frequency values so that it can be transferred to the supply mains.
The claims attached hereto describe preferred embodiments of the invention.
Brief description of the drawings Further characteristics and advantages of this invention will become apparent from the following detailed description of a preferred, but not exclusive, embodiment of an apparatus for recovering and converting pneumatic energy in discharged air of blow mold machines used to produce containers, given by way of not limiting example, with the help of the drawings attached hereto, in which: Fig. 1 shows a side view of the recovery and conversion apparatus according to the invention;
Fig. 2 shows a view from the top of the apparatus in Fig. 1 ;
Fig. 3 shows a graph with the performance trend of the apparatus according to the invention. Detailed description of a preferred embodiment of the invention
With reference to Figures 1 and 2 an apparatus is shown for recovering and converting the pneumatic energy in the discharged air, coming from the blow cavities of single-stage or blow machines used to produce containers, comprising:
- means for recovering the discharged air; - means for converting the pneumatic energy contained in said air;
- connecting equipment;
- electronic means of control and automation.
The means for recovering the blowing air comprise a system, comprising in particular pneumatic valves and sensors, capable of following the pressure profile of the compressed air during the pressure let-down of the blow cavities. Said recovery means, advantageously, make the recovered discharged air available at a predetermined average pressure, preferably varying within a range of between 10 and 12 bar, so that it can be adjusted by suitable controlling means to a predetermined constant pressure, preferably equal to approximately 6÷7 bar, to achieve an optimum supply to the pneumatic motor.
The means of converting the pneumatic energy in the recovered discharged air, in turn, comprise: - an inlet duct 1 through which the recovered air is fed at said predetermined constant pressure;
- a pneumatic motor 2;
- an electrical generator 4;
- a connecting joint 3 between said motor and generator; - an outlet duct 5 through which the recovered air is discharged.
The pneumatic motor 2, connected by means of the connecting joint 3 to the generator 4, for example an asynchronous motor, is driven by the discharged air, recovered and adjusted to the predetermined constant pressure and fed through the inlet duct 1 on the apparatus, and transfers the energy to the asynchronous motor converting the residual pneumatic energy in the compressed air into electrical energy. Once it has been re-used, said air is discharged from the apparatus through the outlet 5.
Advantageously said air that is discharged through the outlet 5, while not containing any pneumatic energy, is nonetheless dry air and can thus be re-used a second time and sent, for example, by means of suitable conveying means to the cabinet to keep the dew point down or to a dryer to dry the grains of plastic material prior to extrusion. The electronic means of control and automation, in the case of the generator consisting of an asynchronous motor, comprise:
- elements for making the connection to the electricity mains; - an electromagnetic compatibility filter (EMC), with the function of suppressing any electromagnetic interference on the electrical supply system generated by the frequency converter.
- a first frequency converter for the power supply to the asynchronous motor;
- a second frequency converter for transferring the converted energy to the mains; - electromechanical devices for controlling and protecting the equipment of the apparatus, such as switches, sectioning devices, fuses, etc.;
- asynchronous motor wiring;
- electronic control board and relative software. The first frequency converter supplies the asynchronous motor and, thanks to the use of suitable algorithms and settings stored on the electronic board, controls the angular speed of the pneumatic motor by operating the electrical generator. Advantageously, by controlling this speed the electrical energy regeneration process is optimized, to achieve a level of efficiency of approximately 90%.
The second frequency converter, on the other hand, converts the electrical energy generated by the electrical generator 4, synchronizing it to the appropriate voltage and frequency values so that it can be transferred to the electrical supply system. The method developed to optimize the regenerated power is based on balancing the pneumatic and electrical energy, so that, developing the respective equations, the optimal value of the percentage of use of the generator is expressed as a function of the pressure supplied to the pneumatic motor. The levels of efficiency thus obtained and measured remain very high across the system's entire main operating range, corresponding to between approx. 1500 and 2300 rpm, preferably equal to or more than 2000 rpm, as illustrated in the diagram in Fig. 3.
Said diagram illustrates the performance of the apparatus according to the invention when the number of rpm changes at a nominal controlled pneumatic motor supply pressure of 6 bar. The curve 6 represents the performance trend of the energy recovery and conversion apparatus. The curves 7, 8 and 9 represent, respectively, the mechanical power trend, the regenerated power trend and the difference between said mechanical and regenerated powers, i.e. the power dissipated during the operation of the apparatus.
It is clear from the diagram that within the main operating range of the system approx. 90% of the pneumatic energy in the air leaving the blow cavities is converted into electrical energy.
The specific embodiments described in this document are not limitative and this patent application covers all the alternative embodiments of the invention as set forth in the claims.

Claims

1. Apparatus for recovering and converting the pneumatic energy in the air discharged by blow mold machines used to produce plastic containers comprising recovery means for recovering said discharged air leaving the blow cavities of said blow mold machines at a first pressure and means of converting said pneumatic energy into electrical energy, said converting means being arranged downstream of said recovery means.
2. Apparatus according to claim 1 , wherein said recovery means incorporate pneumatic valves and sensors suitable for making said discharged air available at a second predetermined pressure.
3. Apparatus according to claim 2, wherein said second predetermined pressure has a magnitude between 10 and 12 bar.
4. Apparatus according to claim 3, wherein means are provided for setting said second predetermined pressure to a constant lower value in correspondence with an inlet duct (1 ) on said converting means.
5. Apparatus according to any of the previous claims, wherein said converting means comprise a pneumatic motor (2) suitable for being operated by said discharged air and for transferring mechanical energy to an electrical generator (4) by means of a connecting joint (3).
6. Apparatus according to claim 5, wherein said electrical generator (4) comprises an asynchronous motor.
7. Apparatus according to any of the previous claims, wherein means are provided for the control and automation of the conversion of said pneumatic energy.
8. Apparatus according to claim 7, wherein said control and automation means comprise a first frequency converter suitable for controlling the angular speed of the pneumatic motor (2) and a second frequency converter suitable for synchronizing the voltage and frequency of the electrical energy generated by the generator (4) with the respective values of an electrical supply system.
9. Apparatus according to any of the previous claims, wherein there are provided means for transferring said discharged air, discharged through an outlet duct (5) on said apparatus, to a cabinet in order to maintain the dew point and/or a dryer.
10. Method for recovering and converting pneumatic energy of air discharged from a blow mold machine used to produce plastic containers, by means of the apparatus according to claim 1 , comprising the following steps: a) recovering said discharged air, leaving the blow cavities of said blow mold machines at a first pressure, by means of recovery means, b) conversion of pneumatic energy available in said discharged air into electrical energy by means of converting means located downstream of said recovery means.
1 1. Method according to claim 10, wherein said discharged air leaves the recovery means at a second predetermined pressure.
12. Method according to claim 1 1 , comprising regulating said predetermined second pressure to a constant lower value in correspondence with an inlet duct (1 ) on said converting means.
13. Method according to claim 12, wherein said discharged air is transferred, after step b), to a cabinet in order to maintain the dew point and/or to a dryer.
PCT/EP2006/064945 2005-08-05 2006-08-02 Apparatus for recovering and converting energy WO2007017429A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06792642A EP1919691A2 (en) 2005-08-05 2006-08-02 Apparatus for recovering and converting energy

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000431A ITRM20050431A1 (en) 2005-08-05 2005-08-05 RECOVERY AND ENERGY TRANSFORMATION DEVICE.
ITRM2005A000431 2005-08-05

Publications (2)

Publication Number Publication Date
WO2007017429A2 true WO2007017429A2 (en) 2007-02-15
WO2007017429A3 WO2007017429A3 (en) 2007-08-23

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PCT/EP2006/064945 WO2007017429A2 (en) 2005-08-05 2006-08-02 Apparatus for recovering and converting energy

Country Status (4)

Country Link
EP (1) EP1919691A2 (en)
CN (1) CN101237984A (en)
IT (1) ITRM20050431A1 (en)
WO (1) WO2007017429A2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008073276A1 (en) * 2006-12-08 2008-06-19 Nestlé Waters North America Inc. Mold cooling by recovery of energy from spent compressed air in blow-molding process
WO2010118728A1 (en) * 2009-04-16 2010-10-21 Khs Corpoplast Gmbh & Co. Kg Method and device for blow-molding containers
EP2524793A2 (en) 2011-05-17 2012-11-21 Krones AG Device and method for manufacturing plastic containers from pre-forms

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996025285A1 (en) * 1995-02-17 1996-08-22 Procontrol Ag Stretch blow forming method and blow forming press
GR960100152A (en) * 1996-05-10 1998-01-30 Machine for storing used compressed air.
EP0824978A1 (en) * 1996-08-19 1998-02-25 Thomassen & Drijver-Verblifa N.V. Device for remodelling a hollow object
US20010043878A1 (en) * 2000-03-31 2001-11-22 Sullivan Timothy J. Involute spiral wrap device
WO2004053295A1 (en) * 2002-12-07 2004-06-24 Energetix Group Limited Electrical power supply system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56165701A (en) * 1980-05-23 1981-12-19 Hitachi Ltd Power generator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996025285A1 (en) * 1995-02-17 1996-08-22 Procontrol Ag Stretch blow forming method and blow forming press
GR960100152A (en) * 1996-05-10 1998-01-30 Machine for storing used compressed air.
EP0824978A1 (en) * 1996-08-19 1998-02-25 Thomassen & Drijver-Verblifa N.V. Device for remodelling a hollow object
US20010043878A1 (en) * 2000-03-31 2001-11-22 Sullivan Timothy J. Involute spiral wrap device
WO2004053295A1 (en) * 2002-12-07 2004-06-24 Energetix Group Limited Electrical power supply system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 006, no. 050 (M-120), 3 April 1982 (1982-04-03) & JP 56 165701 A (HITACHI LTD), 19 December 1981 (1981-12-19) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008073276A1 (en) * 2006-12-08 2008-06-19 Nestlé Waters North America Inc. Mold cooling by recovery of energy from spent compressed air in blow-molding process
US7857613B2 (en) 2006-12-08 2010-12-28 Nestle Waters North America Inc. Mold cooling by recovery of energy from spent compressed air in blow-molding process
WO2010118728A1 (en) * 2009-04-16 2010-10-21 Khs Corpoplast Gmbh & Co. Kg Method and device for blow-molding containers
CN102427928A (en) * 2009-04-16 2012-04-25 Khs科波普拉斯特有限责任公司 Method and device for blow-molding containers
EP2524793A2 (en) 2011-05-17 2012-11-21 Krones AG Device and method for manufacturing plastic containers from pre-forms
DE102011075958A1 (en) 2011-05-17 2012-11-22 Krones Aktiengesellschaft Apparatus and method for producing plastic containers from preforms

Also Published As

Publication number Publication date
ITRM20050431A1 (en) 2007-02-06
EP1919691A2 (en) 2008-05-14
CN101237984A (en) 2008-08-06
WO2007017429A3 (en) 2007-08-23

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