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1. 发明授权

EP2305973B1 Lubrication system for portable four-stroke engine 有权转让
标题翻译：对于便携式四冲程发动机的润滑系统
公开(公告)号：EP2305973B1
公开(公告)日：2014-05-07
申请号：EP10178603.6
申请日：2010-09-23
申请人： Makita Corporation
发明人： Sugiyama, Masaki , Tomita, Toshihiro , Kurimoto, Masaki , Kubota, Hiroshi
IPC分类号： F01M1/04 , F01M9/10 , F01M13/02
CPC分类号： F01M1/04 , F01M9/10 , F01M11/067 , F01M13/022 , F01M13/025 , F01M13/0405

2. 发明公开

EP2395207A3 Lubrication system for four-stroke engine 有权转让
标题翻译：对于四冲程发动机的润滑系统
公开(公告)号：EP2395207A3
公开(公告)日：2014-08-20
申请号：EP11177584.7
申请日：2010-09-23
申请人： Makita Corporation
发明人： Sugiyama, Masaki , Tomita, Toshihiro , Kurimoto, Masaki , Kubota, Hiroshi
IPC分类号： F01M1/04 , F01M9/10
CPC分类号： F01M1/04 , F01M3/04 , F01M9/10 , F01M11/065 , F01M13/00 , F01M13/022 , F01M13/025 , F16N7/32
摘要： A lubrication system (30) for a four-stroke engine (100) configured to lubricate components in a crank chamber (105a) and in a valve-operating chamber (130) with oil (A) by supplying the oil (A). The lubrication system has an oil feeding passage (154) including a suction part (155), the suction part (155) being positioned so as to stay below a surface of the oil (A) even when the oil reservoir (107) is tilted with the oil stored therein in an amount within a rated range and a position of the surface of the oil (A) is thereby changed, the oil feeding passage (154) is configured such that, when a negative pressure is created in the crank chamber (105a), the oil reservoir (107) and the crank chamber (105a) are in communication with each other through the oil feeding passage (154) so that the oil (A) in the oil reservoir (107) is sucked through the suction part (155) and is delivered to the crank chamber (105a), wherein the oil feeding passage (154) has an opening end opened in the crank chamber (105a), the opening end being positioned so as to establish communication with the crank chamber (105a) when the piston (113) moves from a position near a top dead center toward the top dead center; and a direct passage (147) having a plurality of openings that are spaced apart from each other, are opened in the valve-operating chamber (130) at one ends and are opened in the crank chambers (105a) at the other ends, so as to communicate the valve-operating chamber (130) with the crank chamber (105a) when a negative pressure is created in the crank chamber (105a), wherein the opening end of the direct passage (147) opened in the crank chamber (105a) is positioned so as to establish communication with the crank chamber (105a) when the piston (113) moves from a position near the top dead center toward the top dead center; and wherein the oil (A) in the valve-operating chamber (130) is delivered to the crank chamber (105a) through the direct passage (147) when a negative pressure is created in the crank chamber (105a).

3. 发明公开

EP2305973A1 Lubrication system for portable four-stroke engine 有权转让
标题翻译： Schmiersystemfüreinen tragbaren Viertaktmotor
公开(公告)号：EP2305973A1
公开(公告)日：2011-04-06
申请号：EP10178603.6
申请日：2010-09-23
申请人： Makita Corporation
发明人： Sugiyama, Masaki , Tomita, Toshihiro , Kurimoto, Masaki , Kubota, Hiroshi
IPC分类号： F01M1/04 , F01M9/10 , F01M13/02
CPC分类号： F01M1/04 , F01M9/10 , F01M11/067 , F01M13/022 , F01M13/025 , F01M13/0405
摘要： A lubrication system (70) for a portable four-stroke engine (1) includes an opening end (36a) of the breather passage(36) is disposed at substantially a center of a valve-operating chamber (30), and the valve-operating chamber (30) is formed by attaching a valve-operating chamber cover (31). An inner cover (40) is attached to an inner surface of the valve-operating chamber cover (31) so as to be provided along and in contact with the inner surface of the valve-operating chamber cover (31). A suction passage (45) is formed as a gap between the circumferential edge of the top plate portion and the inner cover (40). Three or more suction tubes (46) that are in communication with the suction passage (45) are provided in the inner cover (40), each of the suction tubes (46) having an opening end (46b). At least one of the opening ends (46b) of the suction tubes (46) is provided lower than the opening end (36a) of the breather passage (36) in an attitude of the engine (1) during use.
摘要翻译：用于便携式四冲程发动机（1）的润滑系统（70）包括通气通道（36）的开口端（36a）设置在阀操作室（30）的大致中心处，操作室（30）通过安装阀操作室盖（31）而形成。内盖（40）安装在阀操作室盖（31）的内表面上，以便与阀操作室盖（31）的内表面一并且接触。吸入通道（45）形成为顶板部分的圆周边缘和内盖（40）之间的间隙。与吸入通路（45）连通的三个以上的吸入管（46）设置在内罩（40）中，每个吸引管（46）具有开口端（46b）。吸气管（46）的开口端（46b）中的至少一个在使用过程中以发动机（1）的姿势设置在通气孔（36）的开口端（36a）的下方。

4. 发明授权

EP2305972B1 Lubrication system for four-stroke engine 有权转让
标题翻译：对于四冲程发动机的润滑系统
公开(公告)号：EP2305972B1
公开(公告)日：2014-05-07
申请号：EP10178602.8
申请日：2010-09-23
申请人： Makita Corporation
发明人： Sugiyama, Masaki , Tomita, Toshihiro , Kurimoto, Masaki , Kubota, Hiroshi
IPC分类号： F01M1/04 , F01M9/10 , F01M13/02
CPC分类号： F01M1/04 , F01M3/04 , F01M9/10 , F01M11/065 , F01M13/00 , F01M13/022 , F01M13/025 , F16N7/32

5. 发明授权

EP2395207B1 Lubrication system for four-stroke engine 有权转让
公开(公告)号：EP2395207B1
公开(公告)日：2018-05-30
申请号：EP11177584.7
申请日：2010-09-23
申请人： Makita Corporation
发明人： Sugiyama, Masaki , Tomita, Toshihiro , Kurimoto, Masaki , Kubota, Hiroshi
IPC分类号： F01M1/04 , F01M9/10
CPC分类号： F01M1/04 , F01M3/04 , F01M9/10 , F01M11/065 , F01M13/00 , F01M13/022 , F01M13/025 , F16N7/32
摘要： A lubrication system (30) for a four cycle engine (1, 10) lubricates the valve mechanism with the oil mist of the concentration lowered by the liquefying means (70). The lubrication system (30) has an oil feeding passage (34, 154) for connecting an oil reservoir (7, 107) and the crank chamber (5a, 105a) and sending the oil (A) retained in liquid form in the oil reservoir (7, 107) to the crank chamber (5a, 105a) under a negative pressure of the crank chamber (5a, 105a), a communication passage (39, 159) for connecting the crank chamber (5a, 105a) and the oil reservoir (107) and sending oil mist generated in the crank chamber (5a, 105a) to the oil reservoir (7, 107) when under a positive pressure of the crank chamber (5a, 105a), liquefying means (70) in the oil reservoir (7, 107) for liquefying the oil mist sent from the communication passage (39,159) to the oil reservoir (7, 107) to decrease the concentration of the oil mist, and a supply passage (31,151) for supplying the oil mist from the oil reservoir (7, 107) to the valve-operating chamber (4, 130) through the liquefying means (70).

6. 发明公开

EP2395207A2 Lubrication system for four-stroke engine 有权转让
标题翻译：四冲程发动机的润滑系统
公开(公告)号：EP2395207A2
公开(公告)日：2011-12-14
申请号：EP11177584.7
申请日：2010-09-23
申请人： Makita Corporation
发明人： Sugiyama, Masaki , Tomita, Toshihiro , Kurimoto, Masaki , Kubota, Hiroshi
IPC分类号： F01M1/04 , F01M9/10
CPC分类号： F01M1/04 , F01M3/04 , F01M9/10 , F01M11/065 , F01M13/00 , F01M13/022 , F01M13/025 , F16N7/32
摘要： A lubrication system (30) for a four-stroke engine (100) configured to lubricate components in a crank chamber (105a) and in a valve-operating chamber (130) with oil (A) by supplying the oil (A). The lubrication system has an oil feeding passage (154) including a suction part (155), the suction part (155) being positioned so as to stay below a surface of the oil (A) even when the oil reservoir (107) is tilted with the oil stored therein in an amount within a rated range and a position of the surface of the oil (A) is thereby changed, the oil feeding passage (154) is configured such that, when a negative pressure is created in the crank chamber (105a), the oil reservoir (107) and the crank chamber (105a) are in communication with each other through the oil feeding passage (154) so that the oil (A) in the oil reservoir (107) is sucked through the suction part (155) and is delivered to the crank chamber (105a), wherein the oil feeding passage (154) has an opening end opened in the crank chamber (105a), the opening end being positioned so as to establish communication with the crank chamber (105a) when the piston (113) moves from a position near a top dead center toward the top dead center; and a direct passage (147) having a plurality of openings that are spaced apart from each other, are opened in the valve-operating chamber (130) at one ends and are opened in the crank chambers (105a) at the other ends, so as to communicate the valve-operating chamber (130) with the crank chamber (105a) when a negative pressure is created in the crank chamber (105a), wherein the opening end of the direct passage (147) opened in the crank chamber (105a) is positioned so as to establish communication with the crank chamber (105a) when the piston (113) moves from a position near the top dead center toward the top dead center; and wherein the oil (A) in the valve-operating chamber (130) is delivered to the crank chamber (105a) through the direct passage (147) when a negative pressure is created in the crank chamber (105a).
摘要翻译：一种用于四冲程发动机（100）的润滑系统（30），该四冲程发动机构造成通过供应油（A）来润滑曲轴室（105a）和阀操作室（130）中的部件与油（A）。润滑系统具有包括吸入部（155）的供油通路（154），即使当储油部（107）倾斜时，吸入部（155）也被定位成保持在油（A）的表面下方其中储存在其中的油量在额定范围内并且由此油（A）的表面的位置由此改变，供油通道（154）被构造成使得当曲轴室中产生负压时（105a），储油器（107）和曲轴室（105a）通过供油通路（154）相互连通，储油器（107）内的油（A）通过吸入口其特征在于，所述供油通路（154）具有在所述曲轴室（105a）开口的开口端，所述开口端被定位成与所述曲轴室（105a）连通（105a），当活塞（113）从靠近上死点的位置移向顶点时 d中心; 和具有多个彼此间隔开的开口的直通通道（147）在一端处在气门操作室（130）中打开并且在另一端处在曲轴室（105a）中打开，因此在曲轴室105a内产生负压时，使曲轴室105a与气门室130连通，在曲轴室105a开口的直通通路147的开口端，）定位成当活塞（113）从靠近上止点的位置向上止点移动时与曲柄室（105a）建立连通; 当曲轴室（105a）产生负压时，阀门工作室（130）中的油（A）通过直接通道（147）输送到曲轴室（105a）。

7. 发明公开

EP2305972A1 Lubrication system for four-stroke engine 有权转让
标题翻译： Schmiersystemfüreinen Viertaktmotor
公开(公告)号：EP2305972A1
公开(公告)日：2011-04-06
申请号：EP10178602.8
申请日：2010-09-23
申请人： Makita Corporation
发明人： Sugiyama, Masaki , Tomita, Toshihiro , Kurimoto, Masaki , Kubota, Hiroshi
IPC分类号： F01M1/04 , F01M9/10 , F01M13/02
CPC分类号： F01M1/04 , F01M3/04 , F01M9/10 , F01M11/065 , F01M13/00 , F01M13/022 , F01M13/025 , F16N7/32
摘要： A lubrication system (30) for a four cycle engine (1, 10) lubricates the valve mechanism with the oil mist of the concentration lowered by the liquefying means (70).
The lubrication system (30) has an oil feeding passage (34, 154) for connecting an oil reservoir (7, 107) and the crank chamber (5a, 105a) and sending the oil (A) retained in liquid form in the oil reservoir (7, 107) to the crank chamber (5a, 105a) under a negative pressure of the crank chamber (5a, 105a), a communication passage (39, 159) for connecting the crank chamber (5a, 105a) and the oil reservoir (107) and sending oil mist generated in the crank chamber (5a, 105a) to the oil reservoir (7, 107) when under a positive pressure of the crank chamber (5a, 105a), liquefying means (70) in the oil reservoir (7, 107) for liquefying the oil mist sent from the communication passage (39,159) to the oil reservoir (7, 107) to decrease the concentration of the oil mist, and a supply passage (31,151) for supplying the oil mist from the oil reservoir (7, 107) to the valve-operating chamber (4, 130) through the liquefying means (70).
摘要翻译：用于四冲程发动机（1,10）的润滑系统（30）利用由液化装置（70）降低的浓度的油雾来润滑阀机构。润滑系统（30）具有用于连接储油器（7,107）和曲柄室（5a，105a）的供油通路（34,154），并且将保持液体状态的油（A）输送到油箱（5a，105a）的负压下的曲柄室（5a，105a）的连通通路（39,159），连通曲轴室（5a，105a）和油箱（107），并且在曲轴室（5a，105a）的正压下将在曲柄室（5a，105a）中产生的油雾送到储油部（7,107a），油箱内的液化装置（7,107），其将从所述连通路（39,159）送出的油雾液化到所述储油部（7,107），以降低所述油雾的浓度;以及供给通路（31,151）油箱（7,107）通过液化装置（70）通向阀操作室（4,130）。

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