发明名称 |
Middle web crankshaft having forged stress relief |
摘要 |
A forged crankshaft includes a plurality of main journals, a plurality of crank pin journals rotatable in a circular path about axes defined by the main journals, and a plurality of crank webs. At least one crank web of the plurality of crank webs defines a middle crank web which is located between and connects two neighboring crank pin journals of the plurality of crank pin journals. The middle crank web has a stress relief forged therein, which is defined by first and second spaced sidewalls, an inner wall and a base wall. The forged-in stress relief has a predetermined depth, wrap angle, radius, and undercut which together define a shape of the forged-in stress relief. The shape of the forged-in stress relief is controlled to reduce stress in the crankshaft. |
申请公布号 |
US8826773(B2) |
申请公布日期 |
2014.09.09 |
申请号 |
US201213482081 |
申请日期 |
2012.05.29 |
申请人 |
Honda Motor Co., Ltd. |
发明人 |
Walters Steven K. |
分类号 |
F16C3/04 |
主分类号 |
F16C3/04 |
代理机构 |
Rankin, Hill & Clark LLP |
代理人 |
Rankin, Hill & Clark LLP |
主权项 |
1. A forged crankshaft comprising:
a first end adapted for connection to an associated pulley and a second end adapted for connection to an associated flywheel; a plurality of main journals; a plurality of crank pin journals rotatable in a circular path about axes defined by the main journals; and a plurality of crank webs, at least one crank web of the plurality of crank webs defining a middle crank web which is located between and connecting two neighboring crank pin journals of the plurality of crank pin journals, the middle crank web having a stress relief forged therein, the forged-in stress relief being defined by first and second spaced sidewalls, an inner wall and a base wall, the forged-in stress relief having a predetermined depth, wrap angle, radius, and undercut which together define a shape of the forged-in stress relief, wherein the shape of the forged-in stress relief is controlled to reduce stress in the crankshaft, wherein the forged-in stress relief is located in an overlap area defined by the neighboring crank pin journals. |
地址 |
Tokyo JP |