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Title:
SINTERED VALVE SEAT
Document Type and Number:
WIPO Patent Application WO/2017/057464
Kind Code:
A1
Abstract:
In order to provide a press-fit-type sintered valve seat that is capable of being used in a high-efficiency engine, said seat having exceptional valve cooling performance and exceptional resistance to deformation and wear, first hard particles and second hard particles having different hardnesses are dispersed to a total of 25-75% by mass in a Cu matrix connected in a network configuration, the hardness of the second hard particles being 300-650 HV0.1, which is less than the hardness of the first hard particles, and the sintered valve seat containing 0.08-2.2% by mass of P.

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Inventors:
HASHIMOTO KIMIAKI (JP)
Application Number:
PCT/JP2016/078632
Publication Date:
April 06, 2017
Filing Date:
September 28, 2016
Export Citation:
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Assignee:
KK RIKEN (JP)
International Classes:
F01L3/02; B22F1/05; B22F1/105; C22C1/04; C22C19/07; C22C38/00; C22C38/24; C22C38/34
Foreign References:
JP2007077438A2007-03-29
JPH05202451A1993-08-10
JP2005248234A2005-09-15
JPH0360895A1991-03-15
Other References:
See also references of EP 3358156A4
Attorney, Agent or Firm:
TAKAISHI Kitsuma (JP)
Download PDF:
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