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公开(公告)号：US20160090938A1
公开(公告)日：2016-03-31
申请号：US14498181
申请日：2014-09-26
Applicant: Caterpillar Inc.
Inventor： Chad Koci , Steven C. Zoz , Jonathan Anders , Kenth I. Svensson
CPC classification number: F02F1/242 , F02B23/0651 , F02B23/0672 , F02F1/18 , F02M26/05 , Y02T10/125
Abstract: An internal combustion engine includes a cylinder case forming a cylinder bore having a centerline and an inner bore surface. A piston disposed within the cylinder bore forms a crown surface. A region defined between the piston and the cylinder bore in a radial direction has an annularly shaped mouth opening surrounding the crown surface. A cylinder head is disposed to cover an open end of the cylinder bore such that a variable volume is defined within the cylinder bore between the cylinder head and the piston. The cylinder head also forms a flame deck in fluid contact with the variable volume. A deflector structure forms a portion of the inner bore surface adjacent the flame deck surface, and is disposed between the flame deck and a topmost ring seal groove of the piston when the piston is at a TDC position.
Abstract translation: 内燃机包括形成具有中心线和内孔表面的气缸孔的气缸壳体。 设置在气缸孔内的活塞形成冠面。 在径向方向上在活塞和气缸孔之间限定的区域具有围绕冠表面的环形形状的开口。 气缸盖设置成覆盖气缸孔的开口端，使得可变容积限定在气缸盖和活塞之间的气缸孔内。 气缸盖还形成与可变容积流体接触的火焰甲板。 偏转器结构形成邻近火焰甲板表面的内孔表面的一部分，并且当活塞处于TDC位置时，设置在火焰甲板和活塞的最上面的环形密封槽之间。
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公开(公告)号：US09611806B2
公开(公告)日：2017-04-04
申请号：US14546674
申请日：2014-11-18
Applicant: Caterpillar Inc.
Inventor： James A. Subatch, Jr. , Matthew I. Rowan , Scott P. Coulier , Ashutosh Katari , Nikhil O. Lulla , James C. Weber , Steven C. Zoz
CPC classification number: F02F3/28 , F02B3/06 , F02B23/06 , F02B23/0621 , F02B23/0696 , F02B23/101 , F02F3/00 , F02F3/0015 , F02F3/22 , F05C2201/021 , F05C2201/0448 , Y02T10/125
Abstract: A piston for an internal combustion engine includes a piston body forming a crown portion and a skirt portion. The skirt portion includes a bore that receives a pin for connecting the piston to a connecting rod, and the crown portion forms a bowl surrounded by a flat crown surface having an annular shape and disposed along a plane. The bowl and the flat crown surface meet along a circular edge surrounding a rim of the bowl. The piston further includes an annular protrusion disposed within the bowl adjacent the rim. The annular protrusion has a generally convex shape in cross section created by an upper, inwardly extending surface and a lower, inwardly extending surface that meet along a convex apex. The piston further includes an airfoil surface formed in the flat crown surface. The airfoil surface has a convex shape and extends annularly around the rim of the bowl.
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公开(公告)号：US20160138520A1
公开(公告)日：2016-05-19
申请号：US14546674
申请日：2014-11-18
Applicant: Caterpillar Inc.
Inventor： James A. Subatch, Jr. , Matthew I. Rowan , Scott P. Coulier , Ashutosh Katari , Nikhil O. Lulla , James C. Weber , Steven C. Zoz
CPC classification number: F02F3/28 , F02B3/06 , F02B23/06 , F02B23/0621 , F02B23/0696 , F02B23/101 , F02F3/00 , F02F3/0015 , F02F3/22 , F05C2201/021 , F05C2201/0448 , Y02T10/125
Abstract: A piston for an internal combustion engine includes a piston body forming a crown portion and a skirt portion. The skirt portion includes a bore that receives a pin for connecting the piston to a connecting rod, and the crown portion forms a bowl surrounded by a flat crown surface having an annular shape and disposed along a plane. The bowl and the flat crown surface meet along a circular edge surrounding a rim of the bowl. The piston further includes an annular protrusion disposed within the bowl adjacent the rim. The annular protrusion has a generally convex shape in cross section created by an upper, inwardly extending surface and a lower, inwardly extending surface that meet along a convex apex. The piston further includes an airfoil surface formed in the flat crown surface. The airfoil surface has a convex shape and extends annularly around the rim of the bowl.
Abstract translation: 用于内燃机的活塞包括形成冠部和裙部的活塞体。 裙部包括容纳用于将活塞连接到连接杆的销的孔，并且冠部形成由具有环形形状并且沿着平面设置的平坦冠状表面包围的碗。 碗和平冠表面围绕碗的边缘周围的圆形边缘相交。 活塞还包括邻近边缘设置在碗内的环形突起。 环形突起具有由上部向内延伸的表面和沿着凸起顶点相交的下部向内延伸的表面形成的横截面的大致凸形形状。 活塞还包括形成在平坦冠面中的翼型面。 翼型表面具有凸形并围绕碗的边缘环形地延伸。
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公开(公告)号：US20160138518A1
公开(公告)日：2016-05-19
申请号：US14546639
申请日：2014-11-18
Applicant: CATERPILLAR INC.
Inventor： James A. Subatch, JR. , Ashutosh Katari , Nikhil O. Lulla , Scott P. Coulier , Matthew I. Rowan , James C. Weber , Steven C. Zoz
CPC classification number: F02F3/28 , F02B23/06 , F02B23/0621 , F02B23/0696 , F02B23/101 , F02F3/0015 , Y02T10/125
Abstract: A piston for an internal combustion engine includes a piston body forming a crown portion and a skirt portion, the skirt portion including a bore that is arranged to receive a pin for connecting the piston to a connecting rod, the crown portion forming a bowl surrounded by a flat crown surface having an annular shape and disposed along a plane, the bowl and the flat crown surface meeting along a circular edge surrounding a rim of the bowl, and an airfoil surface formed in the flat crown surface, the airfoil surface having a convex shape and extending annularly around the rim of the bowl.
Abstract translation: 用于内燃机的活塞包括形成冠部和裙部的活塞体，所述裙部包括孔，所述孔被布置成接收用于将活塞连接到连杆的销，所述冠部形成由 具有环形形状并且沿着平面布置的平坦的冠表面，所述碗和所述平坦冠部表面沿着围绕所述碗的边缘的圆形边缘相交，以及形成在所述平坦冠面中的翼型表面，所述翼型表面具有凸起 形状并围绕碗的边缘环形地延伸。
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Patent Agency Ranking
公开(公告)号：US10161308B2
公开(公告)日：2018-12-25
申请号：US15224362
申请日：2016-07-29
Applicant: Caterpillar Inc.
Inventor： Austin P. Roe , Scott A. Thompson , Anthony T. Petrou , Michael J. Campagna , Steven C. Zoz
Abstract: A machine may comprise a memory configured to store liner polish information; and an electronic control module. The electronic control module may be configured to: determine a load factor based on an amount of load on the engine; determine an end of injection factor associated with the engine; determine a liner polish rate based on the load factor and the end of injection factor; obtain, from the liner polish information stored in the memory, information identifying a previous amount of damage to the engine; determine an amount of time between a current time and a time when the previous amount of damage was calculated; calculate a current amount of damage to the engine based on the previous amount of liner polish, the amount of time, and the liner polish rate; and take a remedial action based on the current amount of damage.
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公开(公告)号：US20160138519A1
公开(公告)日：2016-05-19
申请号：US14546655
申请日：2014-11-18
Applicant: Caterpillar Inc.
Inventor： James A. Subatch, Jr. , Matthew I. Rowan , Scott P. Coulier , Ashutosh Katari , Nikhil O. Lulla , James C. Weber , Steven C. Zoz
CPC classification number: F02F3/28 , F02B23/06 , F02B23/0621 , F02B23/0624 , F02B23/0684 , F02B23/0696 , F02B23/101 , F02F3/02 , Y02T10/125
Abstract: A piston for an internal combustion engine includes a piston body forming a crown portion and a skirt portion. The skirt portion includes a bore that is arranged to receive a pin for connecting the piston to a connecting rod. The crown portion forms a bowl surrounded by a flat crown surface having an annular shape. The bowl and the flat crown surface meet along a circular edge surrounding a rim of the bowl. The piston further includes an annular protrusion disposed within the bowl adjacent the rim. The annular protrusion has a generally convex shape in cross section created by an upper, inwardly extending surface and a lower, inwardly extending surface that meet along a convex apex. The piston further includes a recirculation surface formed within the bowl adjacent the annular protrusion. The recirculation surface meets the lower, inwardly extending surface along an inflection edge.
Abstract translation: 用于内燃机的活塞包括形成冠部和裙部的活塞体。 裙部包括孔，该孔被布置成接收用于将活塞连接到连接杆的销。 冠部形成由具有环形形状的平坦的冠表面包围的碗。 碗和平冠表面围绕碗的边缘周围的圆形边缘相交。 活塞还包括邻近边缘设置在碗内的环形突起。 环形突起具有由上部向内延伸的表面和沿着凸起顶点相交的下部向内延伸的表面形成的横截面的大致凸形形状。 活塞还包括邻近环形突起形成在碗内的再循环表面。 再循环表面沿着弯曲边缘与下部向内延伸的表面相接触。
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公开(公告)号：US20180030891A1
公开(公告)日：2018-02-01
申请号：US15224362
申请日：2016-07-29
Applicant: Caterpillar Inc.
Inventor： Austin P. Roe , Scott A. Thompson , Anthony T. Petrou , Michael J. Campagna , Steven C. Zoz
CPC classification number: F02B77/083 , F02D17/04 , F02D35/02 , F02D41/22 , Y02T10/40
Abstract: A machine may comprise a memory configured to store liner polish information; and an electronic control module. The electronic control module may be configured to: determine a load factor based on an amount of load on the engine; determine an end of injection factor associated with the engine; determine a liner polish rate based on the load factor and the end of injection factor; obtain, from the liner polish information stored in the memory, information identifying a previous amount of damage to the engine; determine an amount of time between a current time and a time when the previous amount of damage was calculated; calculate a current amount of damage to the engine based on the previous amount of liner polish, the amount of time, and the liner polish rate; and take a remedial action based on the current amount of damage.
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公开(公告)号：US09638131B2
公开(公告)日：2017-05-02
申请号：US14498181
申请日：2014-09-26
Applicant: Caterpillar Inc.
Inventor： Chad Koci , Steven C. Zoz , Jonathan Anders , Kenth I. Svensson
CPC classification number: F02F1/242 , F02B23/0651 , F02B23/0672 , F02F1/18 , F02M26/05 , Y02T10/125
Abstract: An internal combustion engine includes a cylinder case forming a cylinder bore having a centerline and an inner bore surface. A piston disposed within the cylinder bore forms a crown surface. A region defined between the piston and the cylinder bore in a radial direction has an annularly shaped mouth opening surrounding the crown surface. A cylinder head is disposed to cover an open end of the cylinder bore such that a variable volume is defined within the cylinder bore between the cylinder head and the piston. The cylinder head also forms a flame deck in fluid contact with the variable volume. A deflector structure forms a portion of the inner bore surface adjacent the flame deck surface, and is disposed between the flame deck and a topmost ring seal groove of the piston when the piston is at a TDC position.
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公开(公告)号：US20160138517A1
公开(公告)日：2016-05-19
申请号：US14546621
申请日：2014-11-18
Applicant: Caterpillar Inc.
Inventor： Ashutosh Katari , Matthew I. Rowan , James A. Subatch, JR. , James C. Weber , Steven C. Zoz , Nikhil O. Lulla , Scott P. Coulier
CPC classification number: F02B23/06 , F02B23/0603 , F02B23/0627 , Y02T10/125
Abstract: A piston for an internal combustion engine includes a piston body forming a crown portion and a skirt portion. The skirt portion includes a bore that is arranged to receive a pin for connecting the piston to a connecting rod. The crown portion forms a bowl surrounded by a flat crown surface having an annular shape. The bowl and flat crown surface meet along a circular edge surrounding a rim of the bowl. The piston further includes an annular protrusion disposed within the bowl adjacent the rim. The annular protrusion has a generally convex shape in cross section that is created by an upper, inwardly extending surface and a lower, inwardly extending surface, which meet along a convex apex.
Abstract translation: 用于内燃机的活塞包括形成冠部和裙部的活塞体。 裙部包括孔，该孔被布置成接收用于将活塞连接到连接杆的销。 冠部形成由具有环形形状的平坦的冠表面包围的碗。 碗和平的表冠表面围绕碗的边缘周围的圆形边缘相交。 活塞还包括邻近边缘设置在碗内的环形突起。 环形突起具有大致凸形的横截面，其由上，向内延伸的表面和下部向内延伸的表面产生，其沿着凸起的顶点相交。
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