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Title:
PROCESS AND DEVICE FOR MANUFACTURING HOLLOW, INTERNALLY COOLED VALVES
Document Type and Number:
WIPO Patent Application WO/2019/137702
Kind Code:
A1
Abstract:
Disclosed is a matrix for shaping a valve blank, said matrix having a round through-hole and a truncated-conical section which tapers from an outer diameter to an inner diameter of a truncated cone, the outer diameter being larger than or equal to the initial outer diameter of the valve blank, and the inner diameter of the matrix being smaller than the initial outer diameter.

Inventors:
MATTHIAS, Thorsten (Steinfeldstraße 9a, Garbsen, 30826, DE)
WOLKING, Antonius (Kluesbrink 52, Barsinghausen, 30890, DE)
BAYARD, Guido (Am Sattel 38, Dortmund, 44369, DE)
Application Number:
EP2018/083759
Publication Date:
July 18, 2019
Filing Date:
December 06, 2018
Export Citation:
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Assignee:
FEDERAL-MOGUL VALVETRAIN GMBH (Hannoversche Straße 73, Barsinghausen, 30890, DE)
International Classes:
B21K1/22; B21C1/22; B21C1/24; B23P15/00; F01L3/14
Foreign References:
EP2690262A12014-01-29
EP2540414A12013-01-02
CN202053075U2011-11-30
JP2005118799A2005-05-12
JP2011167707A2011-09-01
DE102015220891A12017-04-27
Other References:
None
Attorney, Agent or Firm:
BECKER KURIG STRAUS (Bavariastrasse 7, München, 80336, DE)
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