公开(公告)号：US4909866A

公开(公告)日：1990-03-20

申请号：US249637

申请日：1988-09-22

申请人： Makoto Abe ,  Tetsuyuki Taniguchi ,  Tsuyoshi Kuriki ,  Noritoshi Takamura ,  Naoki Terakado ,  Kaoru Hatayama

发明人： Makoto Abe ,  Tetsuyuki Taniguchi ,  Tsuyoshi Kuriki ,  Noritoshi Takamura ,  Naoki Terakado ,  Kaoru Hatayama

IPC分类号： C22C38/00 ,  C21D7/06 ,  C21D9/02 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/34 ,  F16F1/02

CPC分类号： C21D7/06 ,  C21D9/02 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  Y10S148/908

摘要： A high strength spring is made of steel of which composition consists of 0.6 to 0.7 wt % of C, 1.2 to 1.6 wt % of Si, 0.5 to 0.8 wt % of Mn, 0.5 to 0.8 wt % of Cr, 0.05 to 0.2 wt % in total of one or more than one of V, Mo, Nb and Ta and the balance of Fe and inevitable impurities. The steel is limited in particle size of non-metallic inclusions in such a way that the maximum particle size of the non-metallic inclusions is equal to or smaller than 15 .mu.m. The spring is applied at a portion adjacent the outer surface thereof with a residual compression stress in such a way that the maximum of the residual compression stress ranges from 85 to 110 Kgf/mm.sup.2. The spring is further process so as to have such a surface roughness that is equal to or smaller than 15 .mu.m.

摘要翻译： 高强度弹簧由钢组成，其组成为C：0.6〜0.7重量％，Si：1.2〜1.6重量％，Mn：0.5〜0.8重量％，Cr：0.5〜0.8重量％，0.05〜0.2重量％ V，Mo，Nb和Ta中的一种或多于一种，余量为Fe和不可避免的杂质。 钢以非金属夹杂物的最大粒径等于或小于15μm的方式限制非金属夹杂物的粒径。 将弹簧施加在与其外表面相邻的部分处具有残余压缩应力，使残余压缩应力的最大值为85至110Kgf / mm2。 弹簧进一步加工成具有等于或小于15μm的这种表面粗糙度。

公开(公告)号：US4993376A

公开(公告)日：1991-02-19

申请号：US345328

申请日：1989-04-28

申请人： Taizo Fukutome ,  Atsushi Ishida ,  Akihiko Inooku ,  Noritoshi Takamura ,  Kaoru Hatayama ,  Yuichi Nagase ,  Toyoyuki Higashino ,  Hideo Yamamoto

发明人： Taizo Fukutome ,  Atsushi Ishida ,  Akihiko Inooku ,  Noritoshi Takamura ,  Kaoru Hatayama ,  Yuichi Nagase ,  Toyoyuki Higashino ,  Hideo Yamamoto

IPC分类号： F01L3/10 ,  F01L1/46 ,  F16F1/02 ,  F16F1/12

CPC分类号： F01L1/462 ,  F16F1/128

摘要： A spring system for applying a restoring force to a reciprocating member such as an exhaust or intake valve of an internal combustion engine, comprising: a helical spring having open ends and consisting of titanium or an alloy thereof; and a spring seat supporting one of the two ends of the helical spring. Since this helical spring is provided with open ends, mutual striking of the coil wire can be avoided and, thereby, the durability of the helical spring can be ensured in addition to the advantage obtained from the low-mass and high transverse elastic modulus of titanium or its alloy.

摘要翻译： 一种用于向诸如内燃机的排气或进气门的往复运动件施加恢复力的弹簧系统，包括：具有开口端并由钛或其合金构成的螺旋弹簧; 以及支撑螺旋弹簧的两端之一的弹簧座。 由于该螺旋弹簧具有开口端，所以可以避免线圈线的相互撞击，由此除了由钛的低质量和高横向弹性模量获得的优点之外，还可以确保螺旋弹簧的耐久性 或其合金。