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1. WO2010032799 - METHOD OF MANUFACTURING UMBRELLA PORTION OF HOLLOW ENGINE VALVE, AND HOLLOW ENGINE VALVE

Publication Number WO/2010/032799
Publication Date 25.03.2010
International Application No. PCT/JP2009/066285
International Filing Date 17.09.2009
IPC
F01L 3/14 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
3Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
12Cooling of valves
14by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
F01L 3/24 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
3Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
24Safety means or accessories, not provided for in preceding subgroups of this group
CPC
B21D 53/84
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
53Making other particular articles
84other parts for engines, e.g. connecting-rods
B21K 1/22
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
1Making machine elements
20valve parts
22poppet valves, e.g. for internal-combustion engines
B23K 11/0935
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
11Resistance welding; Severing by resistance heating
08Seam welding not restricted to one of the preceding subgroups
093for curved planar seams
0935of tube sections
B23P 15/002
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
15Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
001valves or valve housings
002poppet valves
F01L 2303/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
2303Manufacturing of components used in valve arrangements
F01L 3/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
3Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
12Cooling of valves
14by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
Applicants
  • 三菱重工業株式会社 MITSUBISHI HEAVY INDUSTRIES, LTD. [JP]/[JP] (AllExceptUS)
  • 株式会社 吉村カンパニー YOSHIMURA COMPANY [JP]/[JP] (AllExceptUS)
  • 吉村 豹治 YOSHIMURA Hyoji [JP]/[JP] (UsOnly)
Inventors
  • 吉村 豹治 YOSHIMURA Hyoji
Agents
  • 光石俊郎 MITSUISHI Toshiro
Priority Data
2008-23908218.09.2008JP
2008-27207922.10.2008JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD OF MANUFACTURING UMBRELLA PORTION OF HOLLOW ENGINE VALVE, AND HOLLOW ENGINE VALVE
(FR) PROCÉDÉ DE FABRICATION D’UNE PARTIE EN PARAPLUIE D’UNE SOUPAPE CREUSE DE MOTEUR, ET SOUPAPE CREUSE DE MOTEUR
(JA) 中空エンジンバルブの弁傘部の製造方法及び中空エンジンバルブ
Abstract
(EN) A method using cold forging to form an umbrella portion (1) of a hollow engine valve (V) consisting of a highly heat resistant material.  The method processes the highly heat resistant material to form a semi-finished product (11) of the umbrella portion, the semi-finished product (11) being provided with a hole (S11) having an inner diameter (φ11) which is the same as the maximum inner diameter (φ11) of a hole (S1) in the finished product, the semi-finished product (11) being also provided with an expanded diameter section (111) having a maximum outer diameter (φ12) which is the same as the maximum outer diameter (φ12) of an expanded diameter section (1a) of the finished product, and then the method obtains the finished product of the umbrella portion (1) by drawing, by multiple times of cold forging, those portions of the diameter expanded section (111) which are other than the center and lower portions of the diameter expanded section (111).
(JA)  耐熱性に特に優れた素材からなる中空エンジンバルブ(V)の弁傘部(1)の成形を冷間鍛造によって行う。その際、耐熱性に優れた素材を加工して中空孔(S11)の内径(φ11)が完成品の中空孔(S1)の最大内径(φ11)と同一且つ拡径部(111)の最大外径(φ12)が完成品の拡径部(1a)の最大外径(φ12)と同一である弁傘部半完成品(11)となし、拡径部(111)の中央部から下部以外の部分を複数回の冷間鍛造によって絞り上げて弁傘部(1)の完成品を得る方法を提供する。
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