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公开(公告)号：US20160356188A1
公开(公告)日：2016-12-08
申请号：US15174721
申请日：2016-06-06
Applicant: Mazda Motor Corporation
Inventor： Masanori Hashimoto , Hisashi Okazawa , Hiroaki Muranaka , Kimio Ishida , Hiroshi Hosokawa , Sho Ishigaki
CPC classification number: F01M1/16 , F01M1/02 , F01M1/08 , F01M2001/0238 , F01M2001/0246 , F01M2250/62 , F16N2250/04 , F16N2250/08
Abstract: An oil supply system for an engine is provided, which includes an oil pressure controller for controlling a variable displacement oil pump to adjust a discharge pressure thereof to reach a target oil pressure corresponding to an operating state of the engine, the variable displacement oil pump capable of adjusting a discharge amount of oil, a load detector for detecting an engine load, and an oil temperature detector for detecting an oil temperature. When the engine load is low, to increase an amount of oil mist flowing inside a crank case of the engine, the oil pressure controller controls the variable displacement oil pump to increase the discharge amount as the oil temperature becomes lower, the oil mist generated by the oil flowing out of a bearing part rotatably supporting at least a crankshaft and being atomized, the engine load being considered low when below a predetermined reference load.
Abstract translation: 提供一种用于发动机的供油系统，其包括用于控制可变排量油泵以调节其排出压力以达到对应于发动机的运行状态的目标油压的油压控制器，所述可变排量油泵能够 调节油的排出量，用于检测发动机负荷的负载检测器和用于检测油温的油温检测器。 当发动机负荷低时，为了增加在发动机的曲轴箱内流动的油雾量，油压控制器控制可变排量油泵，以随着油温变低而增加排出量，由 油从轴承部分流出至少可旋转地支撑曲轴并被雾化，当低于预定参考载荷时，发动机负载被认为是低的。
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公开(公告)号：US10697358B2
公开(公告)日：2020-06-30
申请号：US16339464
申请日：2016-10-11
Applicant: MAZDA MOTOR CORPORATION
Inventor： Yoshiyuki Uehane , Ken Ohtsuki , Einosuke Suekuni , Kimio Ishida , Hiroshi Hosokawa , Junji Watanabe
Abstract: An intake passage structure for a turbocharger-equipped engine (1) includes a supercharging passage (71) and an air relief passage (72) that are provided in a compressor case (72a). The air relief passage (72) has a first passage (73) and a second passage (74), each of which is in a non-linear shape. The first and second passages (73) and (74) each have an air outflow port (73a, 74a) formed through an inner wall surface of an upstream portion (71a) of the supercharging passage (71) upstream of a compressor (21). The air outflow ports (73a, 74a) are formed through different portions of the inner wall surface in a circumferential direction of the inner wall surface so as to overlap with each other in a direction along a central axis of the upstream portion (71a).
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公开(公告)号：US09964009B2
公开(公告)日：2018-05-08
申请号：US15174721
申请日：2016-06-06
Applicant: Mazda Motor Corporation
Inventor： Masanori Hashimoto , Hisashi Okazawa , Hiroaki Muranaka , Kimio Ishida , Hiroshi Hosokawa , Sho Ishigaki
CPC classification number: F01M1/16 , F01M1/02 , F01M1/08 , F01M2001/0238 , F01M2001/0246 , F01M2250/62 , F16N2250/04 , F16N2250/08
Abstract: An oil supply system for an engine is provided, which includes an oil pressure controller for controlling a variable displacement oil pump to adjust a discharge pressure thereof to reach a target oil pressure corresponding to an operating state of the engine, the variable displacement oil pump capable of adjusting a discharge amount of oil, a load detector for detecting an engine load, and an oil temperature detector for detecting an oil temperature. When the engine load is low, to increase an amount of oil mist flowing inside a crank case of the engine, the oil pressure controller controls the variable displacement oil pump to increase the discharge amount as the oil temperature becomes lower, the oil mist generated by the oil flowing out of a bearing part rotatably supporting at least a crankshaft and being atomized, the engine load being considered low when below a predetermined reference load.
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