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公开(公告)号：US20160319707A1
公开(公告)日：2016-11-03
申请号：US15107835
申请日：2014-12-12
Applicant: MAZDA MOTOR CORPORATION
Inventor： Toshiaki NISHIMOTO , Yasushi NAKAHARA , Hiroshi TAKAHASHI , Yohei SUZUKI
CPC classification number: F01L1/2405 , F01L1/185 , F01L1/46 , F01L13/0005 , F01L2001/0537 , F01L2001/2444 , F01L2001/34496 , F01L2013/001 , F01L2105/00 , F01L2800/08 , F01L2810/01 , F01L2810/02 , F01M1/02 , F01M1/06 , F01M9/10 , F02D13/06 , F02D17/02 , Y02T10/18
Abstract: A hydraulic supply device for a valve stopping mechanism includes: a specific hydraulic oil supply passage which constantly supplies hydraulic oil, a valve stopping mechanism incorporated in a cylinder head, and configured to stop at least one of an intake valve and an exhaust valve, a valve stopping oil passage which supplies hydraulic oil to the valve stopping mechanism, a control valve which controls the supply of hydraulic oil to the valve stopping oil passage, and a communication oil passage which communicates between the valve stopping oil passage and the specific hydraulic oil supply passage, and provided with a restrictor therebetween. The specific hydraulic oil supply passage is connected to an oil supply portion for a portion to be lubricated or for a portion to be cooled in the engine at a position downstream of a connection position with respect to the communication oil passage in an oil supply direction.
Abstract translation: 一种用于阀停止机构的液压供应装置，包括：不断供应液压油的特定液压供油通道，并入气缸盖中的止水机构，其构造成停止进气门和排气门中的至少一个， 向阀停止机构供给液压油的阀止动油路，控制向止血油路供给液压油的控制阀，以及连通上述止回油路与特定液压油供给口的连通油路 通道，并在其间设置有限流器。 特定的液压油供给通路在供油方向上与连接油路的连接位置下游的位置连接有用于待润滑部分的供油部或发动机的待冷却部。
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公开(公告)号：US20190383207A1
公开(公告)日：2019-12-19
申请号：US16478880
申请日：2017-03-03
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yasushi NAKAHARA , Yohei SUZUKI , Tsuyoshi YAMAMOTO , Michiharu KAWANO , Yuya HONDA , Kento ONISHI
Abstract: In an engine (1), when an intake valve (16) opens, a downstream end portion (61) of a first intake port (6) extends to direct to between a shade back (162a) positioned on a cylinder axis (C) side with respect to a valve stem (161) and a ceiling surface (51) facing the shade back (162a). As viewed in a section perpendicular to a direction perpendicular to an intake air flow direction, a second intake port side inner wall surface (61a) at the downstream end portion (61) of the first intake port (6) curves apart from a second intake port (7) in a direction from an exhaust side to an intake side as compared to the shape of an opposite second intake port side inner wall surface (61b) mirror-reversed to a second intake port (7) side.
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公开(公告)号：US20190383208A1
公开(公告)日：2019-12-19
申请号：US16478881
申请日：2017-03-03
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yasushi NAKAHARA , Yohei SUZUKI , Tsuyoshi YAMAMOTO , Michiharu KAWANO , Yuya HONDA , Kento ONISHI
Abstract: In an engine (1), an ignition plug (22) is arranged between a first intake port (6) and a second intake port (7). In a case where a downstream end portion (71) of the second intake port (7) is divided into a first intake port (6) side and an opposite first intake port (6) side, an inner wall surface (71a) of an opposite first intake port (6) side portion extends in a direction toward the first intake port (6) as extending from an upstream side to a downstream side of the second intake port (7).
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