公开(公告)号：US20130000572A1

公开(公告)日：2013-01-03

申请号：US13580905

申请日：2011-02-22

申请人： Shigenao Maruyama ,  Atsuki Komiya ,  Shuichi Moriya ,  Morimasa Nagata ,  Seiji Kosaka ,  Yasuhiro Kawamura ,  Junya Negishi ,  Yoshita Tsukamoto

发明人： Shigenao Maruyama ,  Atsuki Komiya ,  Shuichi Moriya ,  Morimasa Nagata ,  Seiji Kosaka ,  Yasuhiro Kawamura ,  Junya Negishi ,  Yoshita Tsukamoto

IPC分类号： F01P1/04

CPC分类号： F02F3/22 ,  F01M1/08 ,  F01P3/10

摘要： Disclosed is a piston cooling device wherein the cooling efficiency of a piston is improved by oil injected from an oil jet and supplied to a cooling passage provided in the piston, and the amount of cooling oil is reduced when an internal combustion engine is operated at maximum output. The piston cooling device is provided with a piston for an internal combustion engine, in which a circumferential passage and a cooling passage having an inlet passage and an outlet passage are provided, and an oil jet for injecting oil from an injection port to the inlet passage. The oil jet injects oil at every stroke of the piston so that a two-phase plug flow composed of gas and oil is formed in the cooling passage at least when an internal combustion engine is operated at maximum output.

摘要翻译： 公开了一种活塞冷却装置，其中通过从喷油口喷射的油被提供给设置在活塞中的冷却通道的活塞的冷却效率提高，并且当内燃机运行最大时冷却油的量减少 输出。 活塞冷却装置设置有用于内燃机的活塞，其中设有具有入口通道和出口通道的周向通道和冷却通道，以及用于将油从注射口喷射到入口通道的喷油嘴 。 油喷射器在活塞的每个行程处喷射油，使得至少在内燃机以最大输出运转时，在冷却通道中形成由气体和油组成的两相塞流。

公开(公告)号：US08511261B2

公开(公告)日：2013-08-20

申请号：US13580905

申请日：2011-02-22

申请人： Shigenao Maruyama ,  Atsuki Komiya ,  Shuichi Moriya ,  Morimasa Nagata ,  Seiji Kosaka ,  Yasuhiro Kawamura ,  Junya Negishi ,  Yoshita Tsukamoto

发明人： Shigenao Maruyama ,  Atsuki Komiya ,  Shuichi Moriya ,  Morimasa Nagata ,  Seiji Kosaka ,  Yasuhiro Kawamura ,  Junya Negishi ,  Yoshita Tsukamoto

IPC分类号： F01P1/04

CPC分类号： F02F3/22 ,  F01M1/08 ,  F01P3/10

摘要： Disclosed is a piston cooling device wherein the cooling efficiency of a piston is improved by oil injected from an oil jet and supplied to a cooling passage provided in the piston, and the amount of cooling oil is reduced when an internal combustion engine is operated at maximum output. The piston cooling device is provided with a piston for an internal combustion engine, in which a circumferential passage and a cooling passage having an inlet passage and an outlet passage are provided, and an oil jet for injecting oil from an injection port to the inlet passage. The oil jet injects oil at every stroke of the piston so that a two-phase plug flow composed of gas and oil is formed in the cooling passage at least when an internal combustion engine is operated at maximum output.

摘要翻译： 公开了一种活塞冷却装置，其中通过从喷油口喷射的油被提供给设置在活塞中的冷却通道的活塞的冷却效率提高，并且当内燃机运行最大时冷却油的量减少 输出。 活塞冷却装置设置有用于内燃机的活塞，其中设有具有入口通道和出口通道的周向通道和冷却通道，以及用于将油从注射口喷射到入口通道的喷油嘴 。 油喷射器在活塞的每个行程处喷射油，使得至少在内燃机以最大输出运转时，在冷却通道中形成由气体和油组成的两相塞流。