[go: up one dir, main page]

WO2005088102A1 - Procede destine a determiner une voie pour une came d'un moteur a came et partie de voie de bosse, came dont la voie est determine par ce procede et moteur a came possedant une partie de voie de bosse - Google Patents

Procede destine a determiner une voie pour une came d'un moteur a came et partie de voie de bosse, came dont la voie est determine par ce procede et moteur a came possedant une partie de voie de bosse Download PDF

Info

Publication number
WO2005088102A1
WO2005088102A1 PCT/KR2005/000262 KR2005000262W WO2005088102A1 WO 2005088102 A1 WO2005088102 A1 WO 2005088102A1 KR 2005000262 W KR2005000262 W KR 2005000262W WO 2005088102 A1 WO2005088102 A1 WO 2005088102A1
Authority
WO
WIPO (PCT)
Prior art keywords
cam
circle
track
radius
hump
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2005/000262
Other languages
English (en)
Korean (ko)
Inventor
Yong Suk Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MISSION FOUNDATION OF FAMILY FEDERATION FOR WORLD PEACE AND UNIFICATION
Original Assignee
MISSION FOUNDATION OF FAMILY FEDERATION FOR WORLD PEACE AND UNIFICATION
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 MISSION FOUNDATION OF FAMILY FEDERATION FOR WORLD PEACE AND UNIFICATION filed Critical MISSION FOUNDATION OF FAMILY FEDERATION FOR WORLD PEACE AND UNIFICATION
Publication of WO2005088102A1 publication Critical patent/WO2005088102A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders or bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/04—Devices for ventilating, cooling or heating
    • A47C21/048—Devices for ventilating, cooling or heating for heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00 with rotary main shaft other than crankshaft
    • F01B9/06—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00 with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/12—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/003—Magnets
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/004—Means for protecting against undesired influence, e.g. magnetic radiation or static electricity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/007—Anti-mite, anti-allergen or anti-bacterial means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/06—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement
    • F01B1/062—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in star or fan arrangement the connection of the pistons with an actuating or actuated element being at the inner ends of the cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F02B75/222—Multi-cylinder engines with cylinders in V, fan, or star arrangement with cylinders in star arrangement
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater

Definitions

  • the present invention relates to a cam type engine and, more particularly, to a
  • cam-type engine having a cam and a hump track part whose tracks are determined by
  • crankshaft mechanism converts the linear motion
  • crankshaft are used, the engine cannot be miniaturized in size and lightened in weight. As a way of overcoming the disadvantages of the reciprocating engine thus
  • cam (40) is fixed by a key (42) on an output shaft (38) disposed at a center of the cam
  • main roller (44) from being derailed from the track surface (peripheral surface) of the
  • hump track parts (50, 52) having track grooves (50a, 52a) along
  • auxiliary roller (46) rides and rolls, are fixed at both axial sides of the cam (40) by the key (42) on the output shaft (38), and are fixed to a lateral surface of the cam (40) by a bolt (not shown).
  • Each cylinder (34) is mounted with suction/exhaust means having suction/exhaust valves (56, 58) and ignition means having an ignition plug (60).
  • the cylinder (34) in a diesel engine is disposed with suction/exhaust means and fuel injection means.
  • the output shaft (38) is rotatably supported at the cam case (32) by a bearing
  • the piston (36) is centrally concaved at its lower portion, and flanges (36a,
  • flanges (36a, 36b) are disposed at their lower portion with the auxiliary rollers (46, 48)
  • the auxiliary rollers (46, 48) are disposed at an external surface of the flanges
  • first piston referred to as a first piston
  • other pistons are, in the counterclockwise direction
  • valve (58) as depicted in FIG. 1. While the cam (40) and the hump track parts (50,
  • grooves of a hump track are dissimilar according to cam curvatures, size of main and
  • the present invention is disclosed to solve these drawbacks, and it is an object
  • cam-type engine track part of a cam-type engine, and a cam-type engine having the cam and the hump
  • hump tracks can be easily determined and a relation between cam and hump track
  • cam-type engine where a roller rolls along a cam track surface (CT) having a plurality
  • a radius of a circumscribed circle externally contacting a crest of the cam track surface is (Ri), a radius of an inscribed circle internally contracting a valley
  • the radius (Ra) of the crest circle satisfies the following relational
  • a main circle (MR) is ( ⁇ ), a distance between the main circle and the track line on Y-
  • auxiliary roller is (r ).
  • the cam-type engine according to the present invention is mounted with a cam
  • the tracks of the cam and hump tracks can be
  • cam track can be provided, thereby making it easy to design and manufacture the cam-type engine and making the shape of the cam and hump track most suitable as well.
  • FIG. 1 is a front sectional view of a cam-type engine according to the present invention
  • FIG. 2 is a lateral sectional view of a cam-type engine according to the present
  • FIG. 3 is a schematic explanatory diagram for obtaining an expression for
  • FIG. 4 is a schematic explanatory diagram for obtaining an expression for
  • FIG. 5 is a schematic explanatory diagram for determining a coordinate of FIG.
  • FIGS. 6 to FIGS. 8 are schematic drawings for explaining a method of
  • FIG. 9 is a schematic explanatory diagram for obtaining a relation of a track
  • FIG. 10 is a schematic explanatory diagram for obtaining an expression for
  • FIG. 3 is a schematic explanatory diagram for obtaining an expression for
  • CT cam track surface
  • cam is referred to as a Y-axis.
  • a horizontal axis passing the center (O) of the cam is
  • radius (Ri) is referred to as 'circumscribed circle'.
  • cam track surface (CT) having a distance from the center (O) of the cam to the valley
  • FIG 3 shows a cam track surface (CT) having four crests and valleys, each spaced 90 degrees apart, such that the center of the crest circle having a center (Oi) is positioned on the Y-axis while the center of the crest circle having a center (O 2 ) is positioned on the X-axis.
  • the valley circle is tangent to the crest circle having the center (Oi) at a point of contact (Pi) and is tangent to the crest circle having the center (O 2 ) at a point of
  • inscribed circle (R 2 ) can be defined by the following Expressions 1, 2 and 3.
  • circle (R b ) can be defined as the following expression 4.
  • the valley circle (Rb) passes the points of contact (Pi, P 2 and P 3 ) respectively,
  • the Y coordinate of the point of contact (P 2 ) can be expressed as follows. R -,
  • the point of contact (Pi) having a coordinate (a, b) is a point on
  • the value c can be expressed by the following Expression 15. [Expression 15 ]
  • valley circle (R b ) is tangent to the inscribed circle (R 2 ) at the
  • R a 2 a 2 + ⁇ b - (R, - R a ) ⁇ 2
  • valley of the cam track surface is (R 2 )
  • a radius of a crest circle matching a curvature of a crest surface of a cam and internally contacting the circumscribed circle is (Ra)
  • a radius of a valley circle matching a curvature of a valley surface of the cam and externally contacting the crest circle and the inscribed circle is (R b )
  • a radius of a most appropriate crest circle based on a critical condition is obtained when a radius (Ri) of a circumscribed circle and a radius (R 2 ) of an inscribed circle are given.
  • R b z R -2R a
  • auxiliary roller rolls along a hum track
  • hump track groove is determined based on the cam track surface, and a drawing
  • a main circle (MR) is drawn on the drawing of the cam track surface as shown
  • a cell circle (SP) for containing an auxiliary roller is drawn to be tangent to the main circle (MR)
  • auxiliary roller is concentrically drawn with the cell circle (SP).
  • the size of the cell circle (SP) is determined by the size of a gap between the
  • a radius of a main circle having the same radius as that of the main roller riding and rolling along the cam track surface (CT) is given as (R)
  • a radius of a cell circle tangent to the main circle and having the same center as that of the auxiliary roller is given as (r)
  • the main circle (MR) and the cell circle (SP) satisfy the following
  • FIG. 10 is a schematic explanatory diagram for obtaining an

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Textile Engineering (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Gears, Cams (AREA)

Abstract

L'invention concerne un procédé destiné à déterminer une voie ou une came et une partie de voie de bosse d'un moteur à came, le moteur à came sur lequel un rouleau roule le long de la surface de la voie de came (CT) possède plusieurs crêtes et vallées, formées par l'utilisation d'un rayon (R1) d'un cercle circonscrit entrant en contact externe avec une crête de la surface de la voie de came, un rayon (R2) d'un cercle inscrit entrant en contact interne avec un vallée de la surface de voie de came, un rayon (Ra) d'un cercle de crête entré en contact avec le cercle circonscrit, un rayon (Rb) d'un cercle de vallée entré en contact externe avec le cercle de crête et le cercle inscrit, un rayon (R) du cercle principal qui est le même que le rayon du rouleur principal roulant le long de la surface de voie de came, et un rayon (r) d'une tangente de cercle de cellule du cercle principal, possédant le même centre que celui du rouleau auxiliaire.
PCT/KR2005/000262 2004-03-17 2005-01-28 Procede destine a determiner une voie pour une came d'un moteur a came et partie de voie de bosse, came dont la voie est determine par ce procede et moteur a came possedant une partie de voie de bosse Ceased WO2005088102A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020040017924A KR100600581B1 (ko) 2004-03-17 2004-03-17 캠식 엔진의 캠 및 험프 트랙부의 궤도결정방법
KR10-2004-0017924 2004-03-17

Publications (1)

Publication Number Publication Date
WO2005088102A1 true WO2005088102A1 (fr) 2005-09-22

Family

ID=35064521

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2005/000262 Ceased WO2005088102A1 (fr) 2004-03-17 2005-01-28 Procede destine a determiner une voie pour une came d'un moteur a came et partie de voie de bosse, came dont la voie est determine par ce procede et moteur a came possedant une partie de voie de bosse

Country Status (2)

Country Link
KR (1) KR100600581B1 (fr)
WO (1) WO2005088102A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007079766A1 (fr) * 2005-12-21 2007-07-19 Dezmotec Ag Moteur a pistons alternatifs rotatifs
CN102094710A (zh) * 2010-12-01 2011-06-15 四川大学 双相激波摆杆式高速内燃机
CN102937048A (zh) * 2012-11-05 2013-02-20 四川大学 两相外凸轮激波滚移传动内燃机
CN103032164A (zh) * 2012-12-24 2013-04-10 四川大学 外凸内任意齿差凸轮滚移传动内燃机
CN103047003A (zh) * 2013-01-15 2013-04-17 四川大学 外凸内任意齿差凸轮移动式传动内燃机
CN103061878A (zh) * 2013-01-21 2013-04-24 四川大学 任意齿差数套筒式高转速内燃机
CN103061879A (zh) * 2013-01-29 2013-04-24 四川大学 任意齿差数摆动式高转速内燃机
CN103061881A (zh) * 2013-01-29 2013-04-24 四川大学 外凸内任意齿差凸轮摆动式传动内燃机
ITUA20161439A1 (it) * 2016-03-08 2017-09-08 Carlo Zambonardi Motore volumetrico alternativo alimentato con un gas in pressione, in particolare aria compressa
US10408201B2 (en) 2015-09-01 2019-09-10 PSC Engineering, LLC Positive displacement pump

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4510894A (en) * 1982-04-12 1985-04-16 Williams Gerald J Cam operated engine
JPH084550A (ja) * 1994-06-17 1996-01-09 Sankyo Seisakusho:Kk カム式エンジン
FR2732071A1 (fr) * 1995-03-23 1996-09-27 Const Et D Innovations Sa Atel Profil d'un patin s'appuyant sur une ou plusieurs cames
US5606938A (en) * 1994-06-24 1997-03-04 Tritec Power Systems Ltd. Tri-lobed cam engine
US5765512A (en) * 1997-01-25 1998-06-16 Fraser; Burt Loren Rotary-linear power device
US20010017122A1 (en) * 2000-02-29 2001-08-30 Luciano Fantuzzi Internal-combustion engine with improved reciprocating action

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4510894A (en) * 1982-04-12 1985-04-16 Williams Gerald J Cam operated engine
JPH084550A (ja) * 1994-06-17 1996-01-09 Sankyo Seisakusho:Kk カム式エンジン
US5606938A (en) * 1994-06-24 1997-03-04 Tritec Power Systems Ltd. Tri-lobed cam engine
FR2732071A1 (fr) * 1995-03-23 1996-09-27 Const Et D Innovations Sa Atel Profil d'un patin s'appuyant sur une ou plusieurs cames
US5765512A (en) * 1997-01-25 1998-06-16 Fraser; Burt Loren Rotary-linear power device
US20010017122A1 (en) * 2000-02-29 2001-08-30 Luciano Fantuzzi Internal-combustion engine with improved reciprocating action

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007079766A1 (fr) * 2005-12-21 2007-07-19 Dezmotec Ag Moteur a pistons alternatifs rotatifs
CN102094710A (zh) * 2010-12-01 2011-06-15 四川大学 双相激波摆杆式高速内燃机
CN102937048A (zh) * 2012-11-05 2013-02-20 四川大学 两相外凸轮激波滚移传动内燃机
CN103032164A (zh) * 2012-12-24 2013-04-10 四川大学 外凸内任意齿差凸轮滚移传动内燃机
CN103047003A (zh) * 2013-01-15 2013-04-17 四川大学 外凸内任意齿差凸轮移动式传动内燃机
CN103061878A (zh) * 2013-01-21 2013-04-24 四川大学 任意齿差数套筒式高转速内燃机
CN103061879A (zh) * 2013-01-29 2013-04-24 四川大学 任意齿差数摆动式高转速内燃机
CN103061881A (zh) * 2013-01-29 2013-04-24 四川大学 外凸内任意齿差凸轮摆动式传动内燃机
US10408201B2 (en) 2015-09-01 2019-09-10 PSC Engineering, LLC Positive displacement pump
ITUA20161439A1 (it) * 2016-03-08 2017-09-08 Carlo Zambonardi Motore volumetrico alternativo alimentato con un gas in pressione, in particolare aria compressa

Also Published As

Publication number Publication date
KR20050092830A (ko) 2005-09-23
KR100600581B1 (ko) 2006-07-13

Similar Documents

Publication Publication Date Title
US5524577A (en) Rotary engine
WO2005088102A1 (fr) Procede destine a determiner une voie pour une came d'un moteur a came et partie de voie de bosse, came dont la voie est determine par ce procede et moteur a came possedant une partie de voie de bosse
JPH0144892B2 (fr)
US4387672A (en) Energy transfer apparatus
US5560327A (en) Internal combustion engine with improved cycle dynamics
JP3143564B2 (ja) カム式エンジン
US11098586B2 (en) Engine crank and connecting rod mechanism
US20040163618A1 (en) Two-way cylinder engine
US6435145B1 (en) Internal combustion engine with drive shaft propelled by sliding motion
US10590768B2 (en) Engine crank and connecting rod mechanism
US3450107A (en) Engine or power driven machine with rotary piston
US7100549B2 (en) Mechanism including a piston-and-cylinder assembly
CN1959092A (zh) 具有不对称销孔槽布置的活塞
US5836234A (en) Single CAM reciprocating linked piston type engine
US6799542B2 (en) Engine having piston-cam assembly powertrain
WO2005068806A1 (fr) Moteur de type a came et a voie de bosse
KR101465357B1 (ko) 대칭되는 경사형 및 수직형 실린더를 구비하는 트랙식 엔진
US20240052927A1 (en) Piston assembly and associated components, systems, and method
JPS601484B2 (ja) すべり軸受
JPH08105379A (ja) ウェーブカム式圧縮機
JPH07189901A (ja) ウェーブカム式圧縮機
JPH0255827A (ja) ２ストロークエンジン
KR200423281Y1 (ko) 캠식 엔진
KR200424326Y1 (ko) 캠식 엔진
KR101465356B1 (ko) 대칭되는 경사형 실린더를 구비하는 트랙식 엔진

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 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 SM 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 IS IT LT 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
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase