WO2005106237A1 - Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines. - Google Patents

Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines. Download PDF

Info

Publication number
WO2005106237A1
WO2005106237A1 PCT/IL2004/000353 IL2004000353W WO2005106237A1 WO 2005106237 A1 WO2005106237 A1 WO 2005106237A1 IL 2004000353 W IL2004000353 W IL 2004000353W WO 2005106237 A1 WO2005106237 A1 WO 2005106237A1
Authority
WO
WIPO (PCT)
Prior art keywords
injector
pump
nozzle body
faces
insert
Prior art date
Application number
PCT/IL2004/000353
Other languages
French (fr)
Inventor
Boris Feinleib
Original Assignee
Mazrek Ltd.
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 Mazrek Ltd. filed Critical Mazrek Ltd.
Priority to PCT/IL2004/000353 priority Critical patent/WO2005106237A1/en
Priority to JP2007510228A priority patent/JP2007534889A/en
Priority to CA002575510A priority patent/CA2575510A1/en
Priority to US11/578,459 priority patent/US20080197216A1/en
Priority to EP04730356A priority patent/EP1751419A1/en
Publication of WO2005106237A1 publication Critical patent/WO2005106237A1/en
Priority to IL178886A priority patent/IL178886A0/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for

Definitions

  • the invention relates to the field of fuel supply systems for internal combustion engines, specifically to diesels and, more specifically, to their hydraulically driven pump-injectors and to conventional pump-injectors.
  • the injection pressure in modern diesels, especially in high-power diesels should be increased to about 2000-2500 Bar and more.
  • the specific pressures between the adjoining surfaces of said bodies should be 50-70% higher than the actual injection pressures.
  • the force required to keep these bodies together is usually created_by a tightening nut, which leads to the increased tension in the nut itself; this may affect the nut strength, lead to increased deformation of the nozzle body and reduce the pump-injector reliability.
  • the increase of the specific pressures in the joint required at high injection pressures is achieved not by increasing the force of keeping said bodies together by a tightening nut, but by reducing the contact area of the face surfaces of the pump-injector and nozzle bodies.
  • the design environment for the proposed invention contains pump- injector and of nozzle bodies that have flat precision sealing faces contacting each other; the ends of communicating high pressure channels located in said bodies, and bores for the pins centering the bodies reach out to the surface of said faces.
  • these bodies contact each other along the surface bounded by a contour line so that the area of contacting surfaces that seal said faces is smaller than the area corresponding to the total area of the face of the nozzle body determined by the outer diameter of the nozzle body.
  • the contour line bounding the contacting area of the faces of the pump-injector and nozzle bodies can be a single closed line, or consist of individual closed sections.
  • the distance between points on said contour line and the internal surface of said channels and bores made for the centering pins should be equal or greater than the distance between the internal surface of the ends of high-pressure channels in nozzle body and the outer contour of the nozzle body face.
  • Figure 1 shows a functional diagram of joint packing in accordance with the invention illustrated by a hydraulically driven pump-injector, where (a), (b) and (c) illustrate possible contours of the contact surfaces of the faces of the pump-injector and nozzle bodies.
  • FIG. 1 1- pump-injector body; 2 *- nozzle body; 3 - insert between the pump-injector and nozzle bodies; 4 - cylindrical cavity in pump-injector body 1 ; 5 - channel in the pump-injector body connecting cavity 4 with the drain tank ; 6 - plunger; 7 - under-plunger cavity; 8 - channel in the pump-injector body, through which the under-plunger cavity is filled; 9 - tightening nut; 10 - the return spring of the nozzle unit needle; 11 - spring support; 12 - nozzle unit needle; 13 - channels in pump-injector body 1 and insert 3, through which the fuel from under-plunger cavity is supplied to the nozzle body; 14 - channel in nozzle body through which the fuel is supplied from channel 13 into cavity 15 of the nozzle body; 15 - cavity in nozzle body; 16 - pins centering the bodies of the pump-injector and nozzle with insert 3; 17- contour lines bounding the sealing contacting surfaces of joints A-A and
  • Under-plunger cavity 7 is filled with fuel through channel 8. Pump-injector body 1 and nozzle body 2 are pressed to insert 3 by nut 9. In said cavity 4, return spring 10 is disposed which transfers the force through support ⁇ to nozzle needle 12. The lower face of insert 3 limits the travel of the needle which is pressed upon said face during its travel upward. Under-plunger cavity 7 is connected via high-pressure channels 13 in body 1 of the pump-injector and in insert 3, and also through channel 14 in nozzle body 2 with internal cavity 15 of the nozzle unit.
  • the contour lines bounding the contacting surfaces of the joint can be made continuous ( Figure la and lb), or discontinuous and discrete (dashed) ( Figure lc).
  • the form of the contour line should be selected based on the actual design of the bodies of the pump-injector and nozzle units. It should be provided that the minimum distance (bridge “m”, see Figure 1) between the inner surface of the channels and the bores for pins coming out to the sealing joints, and the contour lines are equal or greater than the distance "n" (bridge “n”, see Figure 1) between said bores and outer contour of the cylindrical nozzle body.
  • bridge “m" distance ensures a reliable joint sealing at high pressures (2500 Bar and higher) which is not less reliable than conventional systems where the injection pressures do not exceed 1000-1200 Bar.
  • Providing a reduced contact area of the contacting sealing surfaces is easiest on the pump-injector body and on the insert. In this case, one can use conventional designs of nozzle units and their bodies which are manufactured using a special technology.
  • Arrangement of joint packing between the pump-injector (injector) body and the nozzle body in accordance with the invention can be used for sealing the joints both in conventional injectors and in pump-injectors. It is especially advisable to use the joint packing in accordance with the invention in hydraulically driven pump-injectors. This is because in hydraulically driven pump-injectors, high injection pressures are normally used (2000 Bar, which may soon increase to 2500 Bar and higher) requiring a reliable sealing of said joint without increasing the tightening force of the tightening nut.
  • the problem of sealing the joints is important because we are dealing with larger injectors which are typical of large diesels, such as diesels used for off-road vehicles, locomotives, and marine applications and have larger face areas and, consequently, larger areas of contacting surfaces. Therefore the joint packing in accordance with the invention should be preferably used in diesels of the above mentioned applications.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Arrangement of joint packing between the pump-injector (injector) body (1) and nozzle body (2) for internal combustion engines, primarily diesels, wherein in order to increase the specific pressures between the faces of joined precision surfaces of pump-injector (injector) body (1) and nozzle body (2) (and also when there is an insert (3) installed between said faces) pressed together by a nut (9), said surfaces have a reduced contact area achieved by bounding these surfaces by a contour line (17) surrounding the channels reaching out to said joints. This allows for reliable sealing (joint packing) between pump-injector (injector) body (1), nozzle body (2), and the face of the insert (3) at high injection pressures (2500 Bar and higher).

Description

Arrangement of Joint Packing between the Pump-Injector (Injector) Body and Nozzle Body, for Internal Combustion Engines.
TECHNICAL FIELD
The invention relates to the field of fuel supply systems for internal combustion engines, specifically to diesels and, more specifically, to their hydraulically driven pump-injectors and to conventional pump-injectors.
BACKGROUND ART
In order to achieve greater fuel efficiency and lower exhaust emission, the injection pressure in modern diesels, especially in high-power diesels, should be increased to about 2000-2500 Bar and more. This imposes stricter requirements for the reliability of the joint packing between the pump- injector (or injector, hereinafter "pump-injector") body and the body of the nozzle which in conventional fuel systems is connected to the pump-injector body by a tightening nut. To ensure the required tightness of the joint packing, the specific pressures between the adjoining surfaces of said bodies should be 50-70% higher than the actual injection pressures. To achieve this, the force required to keep these bodies together is usually created_by a tightening nut, which leads to the increased tension in the nut itself; this may affect the nut strength, lead to increased deformation of the nozzle body and reduce the pump-injector reliability.
DISCLOSURE OF INVENTION
In the proposed arrangement of the joint packing between the pump-injector body and nozzle body, the increase of the specific pressures in the joint required at high injection pressures is achieved not by increasing the force of keeping said bodies together by a tightening nut, but by reducing the contact area of the face surfaces of the pump-injector and nozzle bodies.
In accordance with the invention, the design environment for the proposed invention contains pump- injector and of nozzle bodies that have flat precision sealing faces contacting each other; the ends of communicating high pressure channels located in said bodies, and bores for the pins centering the bodies reach out to the surface of said faces. In accordance with the invention, these bodies contact each other along the surface bounded by a contour line so that the area of contacting surfaces that seal said faces is smaller than the area corresponding to the total area of the face of the nozzle body determined by the outer diameter of the nozzle body. In accordance with the invention, the contour line bounding the contacting area of the faces of the pump-injector and nozzle bodies can be a single closed line, or consist of individual closed sections. The distance between points on said contour line and the internal surface of said channels and bores made for the centering pins should be equal or greater than the distance between the internal surface of the ends of high-pressure channels in nozzle body and the outer contour of the nozzle body face. The arrangement of joint packing between the pump-injector and nozzle bodies described above allows for reducing the area of the contacting surfaces of the joint by a factor of 1.5-2 and thus increasing the specific pressure in the joint without exceeding the allowable tightening force of the nut, and providing the conditions for the required level of sealing and reliable functioning of the joint at high injection pressures.
SUMMARY OF THE INVENTION
Figure 1 shows a functional diagram of joint packing in accordance with the invention illustrated by a hydraulically driven pump-injector, where (a), (b) and (c) illustrate possible contours of the contact surfaces of the faces of the pump-injector and nozzle bodies.
In Figure 1 : 1- pump-injector body; 2 *- nozzle body; 3 - insert between the pump-injector and nozzle bodies; 4 - cylindrical cavity in pump-injector body 1 ; 5 - channel in the pump-injector body connecting cavity 4 with the drain tank ; 6 - plunger; 7 - under-plunger cavity; 8 - channel in the pump-injector body, through which the under-plunger cavity is filled; 9 - tightening nut; 10 - the return spring of the nozzle unit needle; 11 - spring support; 12 - nozzle unit needle; 13 - channels in pump-injector body 1 and insert 3, through which the fuel from under-plunger cavity is supplied to the nozzle body; 14 - channel in nozzle body through which the fuel is supplied from channel 13 into cavity 15 of the nozzle body; 15 - cavity in nozzle body; 16 - pins centering the bodies of the pump-injector and nozzle with insert 3; 17- contour lines bounding the sealing contacting surfaces of joints A-A and B-B. Below the description of the lower part of hydraulically driven pump- injector with the arrangement of joint packing in accordance with the invention is given.
In pump-injector body 1 in the area adjacent to insert 3, cylindrical cavity 4 is formed which communicates with the drain tank through channel 5, plunger 6 being also located and moving in said body. Under-plunger cavity 7 is filled with fuel through channel 8. Pump-injector body 1 and nozzle body 2 are pressed to insert 3 by nut 9. In said cavity 4, return spring 10 is disposed which transfers the force through support \\ to nozzle needle 12. The lower face of insert 3 limits the travel of the needle which is pressed upon said face during its travel upward. Under-plunger cavity 7 is connected via high-pressure channels 13 in body 1 of the pump-injector and in insert 3, and also through channel 14 in nozzle body 2 with internal cavity 15 of the nozzle unit. The bodies of the pump-injector and of the nozzle and the insert are centered with respect to each other by pins 16. Ends of channels 13 and 14, and bores of pins 16 out to the sealing surfaces of joints A-A and B-B, and the purpose of the joint packing is prevention of fuel leaks through abovementioned channels and bores. Contour lines 17 bounding the contacting surfaces of the faces shown in Figure 1 (a, b, c) are possible examples of the fonn of the contacting sealing surfaces.
BEST MODE FOR CARRYING OUT THE INVENTION
As mentioned above, the contour lines bounding the contacting surfaces of the joint can be made continuous (Figure la and lb), or discontinuous and discrete (dashed) (Figure lc). The form of the contour line should be selected based on the actual design of the bodies of the pump-injector and nozzle units. It should be provided that the minimum distance (bridge "m", see Figure 1) between the inner surface of the channels and the bores for pins coming out to the sealing joints, and the contour lines are equal or greater than the distance "n" (bridge "n", see Figure 1) between said bores and outer contour of the cylindrical nozzle body. Such limiting of the "m" distance ensures a reliable joint sealing at high pressures (2500 Bar and higher) which is not less reliable than conventional systems where the injection pressures do not exceed 1000-1200 Bar.
Providing a reduced contact area of the contacting sealing surfaces is easiest on the pump-injector body and on the insert. In this case, one can use conventional designs of nozzle units and their bodies which are manufactured using a special technology.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrated embodiments and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respect as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. INDUSTRIAL APPLICABILITY
Arrangement of joint packing between the pump-injector (injector) body and the nozzle body in accordance with the invention can be used for sealing the joints both in conventional injectors and in pump-injectors. It is especially advisable to use the joint packing in accordance with the invention in hydraulically driven pump-injectors. This is because in hydraulically driven pump-injectors, high injection pressures are normally used (2000 Bar, which may soon increase to 2500 Bar and higher) requiring a reliable sealing of said joint without increasing the tightening force of the tightening nut. The problem of sealing the joints is important because we are dealing with larger injectors which are typical of large diesels, such as diesels used for off-road vehicles, locomotives, and marine applications and have larger face areas and, consequently, larger areas of contacting surfaces. Therefore the joint packing in accordance with the invention should be preferably used in diesels of the above mentioned applications.

Claims

I claim: 1. Arrangement of joint packing between the pump-injector (injector) body and nozzle body for internal combustion engines primarily diesels, comprising a body of the pump-injector (injector) and a nozzle body (between which an insert can be installed), having flat precision faces directly contacting each other, said faces having ends of communicating high-pressure channels in the pump-injector body, insert and nozzle body reaching out to their surfaces, said parts being centered one in relation to another by pins whose bores also reach out to said faces, the faces being pressed together by a tightening nut, the proposed arrangement being distinguished by the fact that said faces of the pump-injector body, insert and nozzle body contact each other along a surface bounded by a contour line surrounding said channels and bores in such a way that the area of contacting surfaces along which said faces are sealed is smaller than the area corresponding to the total area of the face of the nozzle unit body bounded by the maximum outer diameter of the nozzle body. 2. Arrangement of joint packing according to Claim 1, wherein said contour line bounding the surface along which the pump-injector (injector) body, insert and nozzle body contact each other, can be a single closed continuous line or can consist of separate closed sections, the distance between the points of said contour line and internal surface of said channels, and pin bores in said bodies and insert being smaller than the distance between internal surface of the ends of the channels in nozzle body and the outer contour of the nozzle body.
PCT/IL2004/000353 2004-04-29 2004-04-29 Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines. WO2005106237A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/IL2004/000353 WO2005106237A1 (en) 2004-04-29 2004-04-29 Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines.
JP2007510228A JP2007534889A (en) 2004-04-29 2004-04-29 Structure of joint packing between a pump type injector (injector) body and a nozzle body for an internal combustion engine
CA002575510A CA2575510A1 (en) 2004-04-29 2004-04-29 Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines.
US11/578,459 US20080197216A1 (en) 2004-04-29 2004-04-29 Arrangement Of Joint Packing Between the Pump-Injector (Injector) Body and Nozzle Body, For Internal Combustion Engines
EP04730356A EP1751419A1 (en) 2004-04-29 2004-04-29 Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines.
IL178886A IL178886A0 (en) 2004-04-29 2006-10-26 Arrangement of joint packing between the pump-injector (injector)body and nozzle body, for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IL2004/000353 WO2005106237A1 (en) 2004-04-29 2004-04-29 Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines.

Publications (1)

Publication Number Publication Date
WO2005106237A1 true WO2005106237A1 (en) 2005-11-10

Family

ID=35241741

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2004/000353 WO2005106237A1 (en) 2004-04-29 2004-04-29 Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines.

Country Status (5)

Country Link
US (1) US20080197216A1 (en)
EP (1) EP1751419A1 (en)
JP (1) JP2007534889A (en)
CA (1) CA2575510A1 (en)
WO (1) WO2005106237A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0908690D0 (en) * 2009-05-20 2009-07-01 Delphi Tech Inc Mounting system for an exhaust system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215821A (en) * 1977-03-16 1980-08-05 Robert Bosch Gmbh Fuel injection nozzle
US5556031A (en) * 1993-10-08 1996-09-17 Lucas Industries Public Limited Company Fuel injection nozzle having a valve and a control element for controlling fuel pressure acting on a surface of the valve
US6609667B2 (en) * 2001-02-14 2003-08-26 Denso Corporation Fuel injection nozzle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5655769U (en) * 1979-10-05 1981-05-14
DE3106470A1 (en) * 1980-03-01 1982-02-18 Diesel Kiki Co. Ltd., Tokyo Fuel injection valve
US5559031A (en) * 1987-08-12 1996-09-24 Technipetrol S.P.A. Apparatus for the continuous production of ethanol from cereals
DE10149514A1 (en) * 2001-10-08 2003-04-24 Bosch Gmbh Robert Fuel injector for IC engine fuel injection system, has deformable compensation sleeve for compensation of skew between coupled components
DE10208544A1 (en) * 2002-02-27 2003-09-11 Hatz Motoren Injector with fuel filter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215821A (en) * 1977-03-16 1980-08-05 Robert Bosch Gmbh Fuel injection nozzle
US5556031A (en) * 1993-10-08 1996-09-17 Lucas Industries Public Limited Company Fuel injection nozzle having a valve and a control element for controlling fuel pressure acting on a surface of the valve
US6609667B2 (en) * 2001-02-14 2003-08-26 Denso Corporation Fuel injection nozzle

Also Published As

Publication number Publication date
US20080197216A1 (en) 2008-08-21
EP1751419A1 (en) 2007-02-14
CA2575510A1 (en) 2005-11-10
JP2007534889A (en) 2007-11-29

Similar Documents

Publication Publication Date Title
EP2941562B1 (en) High pressure pump
US7350507B2 (en) Fuel injector assembly and method of mounting the same
JP3928362B2 (en) Structure to improve seal surface pressure of fluid transfer device
US7886718B2 (en) Fuel injector having integral body guide and nozzle case for pressure containment
US20130001891A1 (en) Sealing assembly
US6142122A (en) Fuel injection valve for internal combustion engines
US7183695B2 (en) Piezoelectric actuator module, and method for assembling a piezoelectric actuator module
US4693424A (en) Poppet covered orifice fuel injection nozzle
US20040069963A1 (en) Valve for controlling fluids
US6752127B2 (en) Accumulator vessel and method of manufacturing the same
WO2005106237A1 (en) Arrangement of joint packing between the pump-injector (injector) body and nozzle body, for internal combustion engines.
CN104033302A (en) Quill Connector For Fuel System And Method
US6513476B1 (en) Piston having combustion chamber defined in the crown
CN102086827B (en) Fluid injector with thermal load control
CN215408942U (en) Stroke adjustable is nozzle structure for dual fuel injector
EP0209244B1 (en) Fuel injection nozzle
US20030084880A1 (en) Pressure-resistant common rail
US7628344B2 (en) Fuel injector with VOP loss resistant valve spring for emissions-compliant engine applications
JP2008163772A (en) Fuel control valve
JPH08319921A (en) Common rail type fuel injection device
US7467750B2 (en) Needle-spring locking device for pump-injector (injector) for internal combustion engines
JP2005214303A (en) Relief valve
JP2809329B2 (en) Accumulator type fuel injection device
US6981655B1 (en) Injector for a fuel injection system for internal combustion engines with an integrated system pressure supply
CN209430326U (en) A kind of MPI fuel rail of high leakproofness

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG 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 MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 11578459

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 178886

Country of ref document: IL

WWE Wipo information: entry into national phase

Ref document number: 2007510228

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

WWE Wipo information: entry into national phase

Ref document number: 2004730356

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2575510

Country of ref document: CA

WWP Wipo information: published in national office

Ref document number: 2004730356

Country of ref document: EP