公开(公告)号：EP2023003A1

公开(公告)日：2009-02-11

申请号：EP07742930.6

申请日：2007-05-08

申请人： NHK Spring Company Limited

发明人： TAKAMURA, Noritoshi ,  IMAIZUMI, Hironobu

IPC分类号： F16F1/12 ,  F01L3/10

CPC分类号： F16F3/02 ,  F01L3/10 ,  F16F1/126 ,  Y10T74/1856

摘要： A spring retainer can reduce the set height and mass of a coil spring. The spring retainer has a retainer body 3 attached to a stem end 11 of a valve and a circumferential plate-like spring part 5 having an inner circumferential part 19 supported by the retainer body 3 and resiliently supporting an end 17 of the valve spring 15. A spring constant K1 of the plate-like spring part 5 is made higher than a spring constant K2 of the valve spring 15, so that the plate-like spring part 5 deflects after the valve spring 15 is compressed, to provide a two-step load characteristic and reduce the set height, compressed height, and mass of the valve spring 15. It can also reduce the height and mass of the spring retainer 1. A spring system formed by combining the spring retainer 1 and valve spring 15 with each other will be compact and lightweight.

摘要翻译： 弹簧保持架可以减小螺旋弹簧的设定高度和质量。 弹簧保持器具有附接到阀杆端部11的保持器主体3和周向板状弹簧部件5，其具有由保持器主体3支撑并且弹性地支撑阀弹簧15的端部17的内周部分19。 使板状弹簧部5的弹簧常数K1高于阀弹簧15的弹簧常数K2，使得板状弹簧部5在阀弹簧15被压缩之后偏转，以提供两步 负载特性并降低阀弹簧15的设定高度，压缩高度和质量。还可以降低弹簧保持器1的高度和质量。通过将弹簧保持器1和阀弹簧15彼此组合而形成的弹簧系统 将紧凑轻巧。