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公开(公告)号：US09925483B2
公开(公告)日：2018-03-27
申请号：US14969671
申请日：2015-12-15
Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATION
Inventor： Keigo Hayashi , Atsushi Nonaka
CPC classification number: B01D45/08 , F01M11/00 , F01M13/00 , F01M13/0416 , F01M2013/0433 , F02B2275/34
Abstract: A blow-by gas inlet structure of an oil separator adapted to be placed above a cam chamber of an internal combustion engine, comprises a plate that forms a bottom wall of the oil separator; a blow-by gas inlet opening that is formed in the plate; an oil blocking structure that is provided below the blow-by gas inlet opening in a manner to divide the blow-by gas inlet opening into front and rear inlet openings through which the blow-by gas is led into the oil separator, the front and rear inlet openings being arranged in a first direction; and a transverse rib that is provided on the oil blocking structure and extends in a second direction that is perpendicular to the first direction.
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公开(公告)号：US20200208550A1
公开(公告)日：2020-07-02
申请号：US16729392
申请日：2019-12-28
Inventor： Atsushi Nonaka , Shintaro Ishigami
Abstract: Provided are a reinforced structural body where an internal tension can be sufficiently generated in a reinforcing member against a deformation input to a body member thus allowing the reinforcing member to properly exhibit a reinforcing effect, and a method of manufacturing the reinforced structural body. An oil pan includes a body member made of a resin which has a plurality of fixing portions to be fixed to a counterpart member which is a fixing object, a reinforcing member which is integrally formed with the body member and has higher rigidity than the body member, and a plurality of bushings which have a higher yield stress than the body member and are fixed to the plurality of fixing portions respectively, wherein the reinforcing member extends between the plurality of bushings so as to connect the plurality of bushings.
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公开(公告)号：US10920631B2
公开(公告)日：2021-02-16
申请号：US16556204
申请日：2019-08-29
Inventor： Daizo Ito , Atsushi Nonaka , Katsuhisa Ohta , Yuki Oyama
Abstract: A head cover structured and arranged to cover at least part of a face of a cylinder head of an internal combustion engine is described. The head cover includes a chamber formation part structured and arranged to provide a chamber to restrain sound propagating through air from the cylinder head. The chamber formation part includes a partition part for partitioning the chamber from a space on a cylinder head side. The partition part has a convex part projecting into the chamber, and a through hole may be provided in the convex part that penetrates from the space on the cylinder head side to the chamber.
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公开(公告)号：US10787941B2
公开(公告)日：2020-09-29
申请号：US15813446
申请日：2017-11-15
Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATION
Inventor： Daizo Ito , Shin Yoshida , Atsushi Nonaka , Yuichi Kato
Abstract: Disclosed is a structure for attachment of a drain nut to a synthetic resin cover. The cover has a nut engagement portion formed in an outer surface of the cover, a cylindrical engagement portion formed with a plurality of piece parts on an inner surface of the cover, and a stepped portion formed between the nut and cylindrical engagement portions. The drain nut has a nut portion engaged in the nut engagement portion, a female thread portion formed in the nut portion for screw-in of a drain plug, a cylindrical portion formed concentrically with the nut portion and engaged in the cylindrical engagement portion, a large-diameter portion formed between the nut and cylindrical portions and engaged in the stepped portion, with an O-ring held between the large-diameter portion and stepped portion, and a collar portion formed around the cylindrical portion and retained by front ends of the piece parts.
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公开(公告)号：US20210102483A1
公开(公告)日：2021-04-08
申请号：US17064586
申请日：2020-10-06
Inventor： Shintaro Ishigami , Daizo Ito , Satoshi Komiyama , Atsushi Nonaka
Abstract: [Problem to be Solved] To improve operability in detaching a sealing member.
[Solution] A sealing structure 10 according to the present invention includes a main body 30a, a female thread part 20h fixed to the main body 30a, the female thread part 20h being screwed into a discharge hole 20c of a drain plug fastening part 20 by the main body 30a being rotated in a normal rotation direction, and an elastically deformable arm part 30c, one end of which is joined to the main body 30a. A concave part 20e is formed in the drain plug fastening part 20 and a claw part 30g is formed in the arm part 30c. When the main body 30a is rotated in the normal rotation direction, the arm part 30c is elastically deformed while a part of the arm part 30c slides on a top surface 20d of the drain plug fastening part 20 until the main body 30a is rotated to a predetermined rotational position and, when the main body 30a is rotated to the predetermined rotational position, the claw part 30g fits in the concave part 20e and the elastic deformation of the arm part 30c is released, whereby the rotation of the main body 30a from the predetermined rotational position is prevented. When the main body 30a is rotated in a reverse rotation direction from the predetermined rotational position, the claw part 30g slides on and climbs over a first wall part 20f of the concave part 20e while the arm part 30c is elastically deformed, whereby the prevention of the rotation of the main body 30a from the predetermined rotational position is released. The claw part 30g or the concave part 20e is formed such that, when the main body 30a is rotated in the reverse rotation direction and the claw part 30g is sliding on the first wall part 20f, an angle A formed by a direction of force applied to the arm part 30c from the drain plug fastening part 20 and a straight line connecting a contact part of the claw part 30g and the first wall part 20f and a rotation center of the main body 30a is smaller than 90 degrees when viewed in a rotation center direction of the main body 30a.-
Patent Agency Ranking
公开(公告)号：US10393064B2
公开(公告)日：2019-08-27
申请号：US15478776
申请日：2017-04-04
Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATION
Inventor： Daizo Ito , Atsushi Nonaka , Seiji Tani
Abstract: A seal structure for an internal combustion engine comprising: a cover side seal member which extends on upper surface sides or lower surface sides of both of an engine main body section and a chain casing and pressed and held against a cover member; a casing side seal member arranged at left or right end section of one end surfaces of the engine main body section onto which the chain casing is attached and pressed and held against the chain casing; a receiving concavity formed to extend on a junction surface of the chain casing to the cover member; and an extremely thick connection block section formed integrally on one end section of the casing side seal member, fitted into and retained by the receiving concavity, and projected more toward the cover member side than a junction surface of the chain casing to the cover member in a free state.
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公开(公告)号：US08936000B2
公开(公告)日：2015-01-20
申请号：US14088790
申请日：2013-11-25
Applicant: Mahle Filter Systems Japan Corporation
Inventor： Atsushi Nonaka
CPC classification number: F01M7/00 , F01M11/0458 , F01M13/0416 , F01M2011/0491 , F01M2013/0433 , F02F7/006
Abstract: A head cover having a lubrication structure, and having a box shape, the head cover includes: a side wall; a lower surface side which is opened, and which includes a lower surface circumference portion that is fixed to an upper portion of an engine; a lubrication opening which is opened in an upward direction, and which is disposed on an outer side of the head cover; and a lubrication passage extending from the side wall in an outward direction, and connecting the lubrication opening and an inside of the head cover.
Abstract translation: 一种具有润滑结构并具有盒形形状的头盖，所述头盖包括：侧壁; 打开的下表面侧，并且其包括固定到发动机的上部的下表面周边部; 润滑开口，其沿向上方向打开，并且设置在所述头罩的外侧; 以及从侧壁沿向外方向延伸的润滑通道，并且将润滑开口和头罩的内部连接起来。
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公开(公告)号：US20140174399A1
公开(公告)日：2014-06-26
申请号：US14088790
申请日：2013-11-25
Applicant: MAHLE FILTER SYSTEMS JAPAN CORPORATION
Inventor： Atsushi Nonaka
IPC: F01M7/00
CPC classification number: F01M7/00 , F01M11/0458 , F01M13/0416 , F01M2011/0491 , F01M2013/0433 , F02F7/006
Abstract: A head cover having a lubrication structure, and having a box shape, the head cover includes: a side wall; a lower surface side which is opened, and which includes a lower surface circumference portion that is fixed to an upper portion of an engine; a lubrication opening which is opened in an upward direction, and which is disposed on an outer side of the head cover; and a lubrication passage extending from the side wall in an outward direction, and connecting the lubrication opening and an inside of the head cover.
Abstract translation: 一种具有润滑结构并具有盒形形状的头盖，所述头盖包括：侧壁; 打开的下表面侧，并且其包括固定到发动机的上部的下表面周边部; 润滑开口，其沿向上方向打开，并且设置在所述头罩的外侧; 以及从侧壁沿向外方向延伸的润滑通道，并且将润滑开口和头罩的内部连接起来。
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公开(公告)号：US11454146B2
公开(公告)日：2022-09-27
申请号：US16768668
申请日：2018-11-20
Inventor： Daizo Ito , Yuichi Kato , Atsushi Nonaka
IPC: F01M11/04
Abstract: The present disclosure describes a drain plug structure for an oil pan for an internal combustion engine. The drain plug structure closes off a drain hole disposed in a bottom portion of the oil pan. The drain plug structure includes a columnar stopper portion inserted into the drain hole and rotated to prevent withdrawal. A sealing member is fitted to an outer periphery of the columnar stopper portion. An operating portion for a rotation operation is disposed on an outside exposed end portion of the columnar stopper portion. A plurality of cantilevered arcuate arm portions project radially outwards from the outside exposed end portion of the columnar stopper portion and are arranged in series along a circumferential direction. A loosening-prevention meshing portion is disposed on a tip end portion of each arcuate arm portion and an opening edge portion of the drain hole.
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公开(公告)号：US11448106B2
公开(公告)日：2022-09-20
申请号：US17064586
申请日：2020-10-06
Inventor： Shintaro Ishigami , Daizo Ito , Satoshi Komiyama , Atsushi Nonaka
Abstract: [Problem to be Solved] To improve operability in detaching a sealing member.
[Solution] A sealing structure 10 according to the present invention includes a main body 30a, a female thread part 20h fixed to the main body 30a, the female thread part 20h being screwed into a discharge hole 20c of a drain plug fastening part 20 by the main body 30a being rotated in a normal rotation direction, and an elastically deformable arm part 30c, one end of which is joined to the main body 30a. A concave part 20e is formed in the drain plug fastening part 20 and a claw part 30g is formed in the arm part 30c. When the main body 30a is rotated in the normal rotation direction, the arm part 30c is elastically deformed while a part of the arm part 30c slides on a top surface 20d of the drain plug fastening part 20 until the main body 30a is rotated to a predetermined rotational position and, when the main body 30a is rotated to the predetermined rotational position, the claw part 30g fits in the concave part 20e and the elastic deformation of the arm part 30c is released, whereby the rotation of the main body 30a from the predetermined rotational position is prevented. When the main body 30a is rotated in a reverse rotation direction from the predetermined rotational position, the claw part 30g slides on and climbs over a first wall part 20f of the concave part 20e while the arm part 30c is elastically deformed, whereby the prevention of the rotation of the main body 30a from the predetermined rotational position is released. The claw part 30g or the concave part 20e is formed such that, when the main body 30a is rotated in the reverse rotation direction and the claw part 30g is sliding on the first wall part 20f, an angle A formed by a direction of force applied to the arm part 30c from the drain plug fastening part 20 and a straight line connecting a contact part of the claw part 30g and the first wall part 20f and a rotation center of the main body 30a is smaller than 90 degrees when viewed in a rotation center direction of the main body 30a.
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