| 发明名称 |
CYLINDER HEAD |
| 摘要 |
The cylinder head includes: an intake port; a low-temperature cooling water channel for circulating low-temperature cooling water; a high-temperature cooling water channel for circulating cooling water of a higher temperature than the cooling water flowing through the low-temperature cooling water channel; and a gas channel for recirculating a portion of blow-by gas or EGR gas to the intake port. The low-temperature cooling water channel is configured to include a first water jacket that covers at least one portion of the wall surface of the intake port on an intake-air upstream side relative to an opening end opening at a wall surface of the intake port from the gas channel. |
| 申请公布号 |
US2016333820(A1) |
申请公布日期 |
2016.11.17 |
| 申请号 |
US201615151861 |
申请日期 |
2016.05.11 |
| 申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
KODAMA Kohei |
| 分类号 |
F02F1/40 |
主分类号 |
F02F1/40 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A cylinder head for an internal combustion engine including two cooling water circulation systems in which temperatures of cooling water are different, comprising:
an intake port; a low-temperature cooling water channel for circulating cooling water of a low temperature; a high-temperature cooling water channel for circulating cooling water of a higher temperature than cooling water flowing through the low-temperature cooling water channel; a gas channel for recirculating a portion of blow-by gas or EGR gas to the intake port; and an opening end opening at a wall surface of the intake port from the gas channel; wherein the low-temperature cooling water channel is configured to include a first water jacket covering at least one portion of the wall surface of the intake port, the at least one portion being located on an intake-air upstream side relative to the opening end. |
| 地址 |
Toyota-shi JP |
