| 发明名称 | Variable compression ratio device and internal combustion engine including the same | ||
| 摘要 | A variable compression ratio device may include a piston assembly having double pistons of which the volume may be varied, a lifter relatively moving one piston of the double pistons with respect to the other piston of the double pistons, a guide unit engaged with the piston assembly and guiding a movement of the one piston with respect to the other piston, and a locking unit selectively coupling the one piston to the other piston. | ||
| 申请公布号 | US9188067(B2) | 申请公布日期 | 2015.11.17 |
| 申请号 | US201314089134 | 申请日期 | 2013.11.25 |
| 申请人 | Hyundai Motor Company | 发明人 | Woo Yoonsik;Lee Eun Ho;Kim Han Sang;Kim Yun Seok |
| 分类号 | F02D15/02;F02D15/04 | 主分类号 | F02D15/02 |
| 代理机构 | Morgan, Lewis & Bockius LLP | 代理人 | Morgan, Lewis & Bockius LLP |
| 主权项 | 1. A variable compression ratio device comprising: a piston assembly having double pistons of which the volume is varied; a lifter relatively moving a first piston of the double pistons with respect to a second piston of the double pistons; a guide unit engaged with the piston assembly and guiding a movement of the first piston with respect to the second piston; and a locking unit selectively coupling the first piston to the second piston, wherein the double pistons include: an outer piston; andan inner piston slidably coupled to the outer piston so as to protrude from the outer piston to an outside of the outer piston. | ||
| 地址 | Seoul KR | ||