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公开(公告)号：US09624816B2
公开(公告)日：2017-04-18
申请号：US14760943
申请日：2014-02-07
CPC分类号： F01P3/02 , F01P5/10 , F01P7/16 , F01P2003/028 , F01P2060/16 , F02F1/14
摘要： A cylinder block (3) includes an inlet portion (36), a narrow portion (42), and an inclined portion (43). A cylinder head includes a head-side discharge portion. The inlet portion is formed on the first cylinder side of a cylinder array, and introduces coolant to a block-side water jacket (33). The narrow portion is formed in the vicinity of the inlet portion, and restricts the coolant introduced through the inlet portion from flowing to an intake-side channel (35) of the block-side water jacket. The inclined portion is formed in the vicinity of the inlet portion, and guides the coolant introduced through the inlet portion toward the head. The head-side discharge portion is formed on the fourth cylinder side of the cylinder array, and discharges the coolant from a head-side water jacket. A communication path for communicating between the water jackets is formed on the head side of the inclined portion.
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公开(公告)号：US20150377114A1
公开(公告)日：2015-12-31
申请号：US14769169
申请日：2014-02-12
CPC分类号： F01P3/02 , F01P3/20 , F01P5/10 , F01P2003/021 , F01P2003/024 , F01P2003/027 , F01P2003/028 , F01P2060/00 , F01P2060/16 , F02F1/10 , F02F1/14 , F02F1/40
摘要： The present invention is configured such that: a cylinder block includes an introducing portion provided at a first side of a cylinder row, cooling liquid being introduced through the introducing portion to a water jacket, a restrictor portion provided in a vicinity of the introducing portion and configured to restrict the cooling liquid, introduced through the introducing portion, from flowing to an intake-side portion of the water jacket, and a discharging portion provided at a middle portion of the cylinder row at an intake side, the cooling liquid being discharged from the water jacket through the discharging portion; and an exhaust-side portion of the water jacket is formed such that a passage cross-sectional area of a cylinder axis direction upper side of the exhaust-side portion is larger than the passage cross-sectional area of a cylinder axis direction lower side of the exhaust-side portion.
摘要翻译： 本发明构造成：气缸体包括设置在气缸列的第一侧的引导部，通过导入部引入水套的冷却液，设置在导入部附近的限制部， 被配置为限制通过所述引入部引入的冷却液流入所述水套的吸入侧部，以及排出部，其设置在所述气缸列的中央部的吸入侧，所述冷却液从 水套通过排放部分; 水套的排气侧部分形成为使得排气侧部分的气缸轴线方向上侧的通道横截面面积大于气缸轴线方向下侧的通道横截面积 排气侧部分。
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公开(公告)号：US20170298859A1
公开(公告)日：2017-10-19
申请号：US15484693
申请日：2017-04-11
CPC分类号： F02F1/14 , F01P3/02 , F01P5/10 , F01P2003/021
摘要： A cooling structure of a multi-cylinder engine is provided, which includes a water jacket formed in a cylinder block to surround cylinder bores of cylinders arranged inline, a spacer, and a coolant inlet. The spacer includes openings at positions corresponding to inter-cylinder-bore portions and a rectifying part extending outwardly on a lower side of the openings. The rectifying part inclines continuously upwardly while extending in one of an exhaust- and intake-side section of the jacket from a first end side to a second end side that is the opposite side from the first end side in a cylinder line-up direction, extending on the second end side from the one of the exhaust- and intake-side sections to the other one of the exhaust- and intake-side sections, and then extending from the second end side to the first end side in the other one of the exhaust- and intake-side sections.
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公开(公告)号：US09188050B2
公开(公告)日：2015-11-17
申请号：US14191259
申请日：2014-02-26
CPC分类号： F01P3/12 , F01P3/207 , F01P7/16 , F01P7/165 , F01P2007/146 , F01P2025/30 , F01P2050/04 , F01P2060/08 , F01P2060/16 , F02B29/0406 , F02M26/05 , F02M26/06 , F02M26/10 , F02M26/15 , F02M26/24 , F02M26/25 , F02M26/28 , F02M26/33 , Y02T10/121
摘要： Disclosed is an engine cooling system which comprises: a head-side circulation pathway through which coolant from a water pump is circulated via a water jacket of a cylinder head and an EGR cooler; a block-side circulation pathway through which the coolant from the water pump is circulated via a water jacket of a cylinder block; and a switching valve unit operable, during cold operation of the engine, to pass the coolant from the water pump, along the head-side circulation pathway, and, when a temperature of the engine is raised up to a predetermined value, to pass the coolant from the water pump, along not only the head-side circulation pathway but also the block-side circulation pathway.
摘要翻译： 公开了一种发动机冷却系统，其包括：头侧循环路径，来自水泵的冷却剂经由气缸盖和EGR冷却器的水套循环通过; 来自水泵的冷却剂经由缸体的水套循环的块侧循环路径; 以及切换阀单元，其在所述发动机的冷运行期间可操作，以沿着所述头侧循环路径从所述水泵通过所述冷却剂，并且当所述发动机的温度升高到预定值时， 来自水泵的冷却液，不仅是头侧循环通道，而且是块侧循环通路。
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公开(公告)号：US20190112963A1
公开(公告)日：2019-04-18
申请号：US16128791
申请日：2018-09-12
摘要： A cooling structure of a multi-cylinder engine is provided, which includes cylinder bores formed in a cylinder block, a water jacket surrounding the bores, a cylinder head, and a water jacket spacer accommodated in the water jacket and having a peripheral wall formed corresponding to the cylinder bores. A length of the peripheral wall in cylinder bore axial directions is substantially the same as that of the water jacket. The peripheral wall forms, inside the water jacket, inner and outer channels, and a width of the inner channel is less than that of the outer channel. Communicating holes communicating the inner and outer channels are formed in the peripheral wall at locations between adjacent cylinder bores, respectively. Inter-bore channels into which some cooling fluid flowing from the outer channel into the inner channel flows are provided to parts of the cylinder block between the adjacent cylinder bores, respectively.
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公开(公告)号：US20170298860A1
公开(公告)日：2017-10-19
申请号：US15484710
申请日：2017-04-11
CPC分类号： F02F1/14 , F01P3/02 , F01P5/10 , F01P2003/021
摘要： A cooling structure of a multi-cylinder engine is provided, which includes a first water jacket formed in a cylinder block to surround cylinder bores of cylinders arranged inline, a spacer having a vertical wall surface and inserted into the first jacket, and a coolant inlet formed in the first jacket on a first end side in a cylinder line-up direction. The structure circulates coolant introduced from the inlet to the first jacket and a second water jacket formed in a cylinder head coupled to the cylinder block via a gasket. The spacer has a flow dividing rib extending outwardly from the vertical wall surface and for vertically dividing the coolant flow, introduced from the inlet to an intake- or exhaust-side section of the first jacket, toward the second jacket through a communication hole formed in the gasket and toward a discharging section provided to the cylinder block.
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公开(公告)号：US20170298858A1
公开(公告)日：2017-10-19
申请号：US15484686
申请日：2017-04-11
CPC分类号： F02F1/14 , F01P3/02 , F01P2003/021 , F02F1/40
摘要： A cooling structure of an engine is provided, which includes a water jacket formed in a cylinder block to surround a cylinder bore of the engine, a spacer having a vertical wall surface and inserted into the water jacket, and a coolant inlet formed in an outer wall of the water jacket, and for circulating to the water jacket coolant introduced from the coolant inlet. The vertical wall surface surrounds the cylinder bore. The spacer includes a guide part provided at a position of a lower end part of the vertical wall surface corresponding to the coolant inlet, and for guiding the coolant introduced from the coolant inlet to flow around the vertical wall surface. The guide part extends outwardly from the lower end part of the vertical wall surface toward the coolant inlet along a bottom wall of the water jacket.
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公开(公告)号：US10174708B2
公开(公告)日：2019-01-08
申请号：US15484693
申请日：2017-04-11
摘要： A cooling structure of a multi-cylinder engine is provided, which includes a water jacket formed in a cylinder block to surround cylinder bores of cylinders arranged inline, a spacer, and a coolant inlet. The spacer includes openings at positions corresponding to inter-cylinder-bore portions and a rectifying part extending outwardly on a lower side of the openings. The rectifying part inclines continuously upwardly while extending in one of an exhaust- and intake-side section of the jacket from a first end side to a second end side that is the opposite side from the first end side in a cylinder line-up direction, extending on the second end side from the one of the exhaust- and intake-side sections to the other one of the exhaust- and intake-side sections, and then extending from the second end side to the first end side in the other one of the exhaust- and intake-side sections.
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公开(公告)号：US10113501B2
公开(公告)日：2018-10-30
申请号：US15484686
申请日：2017-04-11
摘要： A cooling structure of an engine is provided, which includes a water jacket formed in a cylinder block to surround a cylinder bore of the engine, a spacer having a vertical wall surface and inserted into the water jacket, and a coolant inlet formed in an outer wall of the water jacket, and for circulating to the water jacket coolant introduced from the coolant inlet. The vertical wall surface surrounds the cylinder bore. The spacer includes a guide part provided at a position of a lower end part of the vertical wall surface corresponding to the coolant inlet, and for guiding the coolant introduced from the coolant inlet to flow around the vertical wall surface. The guide part extends outwardly from the lower end part of the vertical wall surface toward the coolant inlet along a bottom wall of the water jacket.
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公开(公告)号：US09777615B2
公开(公告)日：2017-10-03
申请号：US14769169
申请日：2014-02-12
CPC分类号： F01P3/02 , F01P3/20 , F01P5/10 , F01P2003/021 , F01P2003/024 , F01P2003/027 , F01P2003/028 , F01P2060/00 , F01P2060/16 , F02F1/10 , F02F1/14 , F02F1/40
摘要： The present invention is configured such that: a cylinder block includes an introducing portion provided at a first side of a cylinder row, cooling liquid being introduced through the introducing portion to a water jacket, a restrictor portion provided in a vicinity of the introducing portion and configured to restrict the cooling liquid, introduced through the introducing portion, from flowing to an intake-side portion of the water jacket, and a discharging portion provided at a middle portion of the cylinder row at an intake side, the cooling liquid being discharged from the water jacket through the discharging portion; and an exhaust-side portion of the water jacket is formed such that a passage cross-sectional area of a cylinder axis direction upper side of the exhaust-side portion is larger than the passage cross-sectional area of a cylinder axis direction lower side of the exhaust-side portion.
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