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公开(公告)号：US11512630B2
公开(公告)日：2022-11-29
申请号：US16643724
申请日：2018-08-30
Applicant: Cummins Inc.
Inventor： Hoseinali Borhan , Dwight A. Doig , Govindarajan Kothandaraman , David E. Koeberlein
IPC: F02B75/28 , F02D41/00 , F02D41/30 , F02D41/04 , B60W10/12 , B60W10/06 , F02N11/08 , F02B37/24 , F02B37/10 , B60W30/192 , G01P13/04 , G01P3/481 , B60W10/196
Abstract: A method for controlling operation of an opposed piston engine is provided, comprising: determining a direction of rotation of the engine; comparing the determined direction of rotation to a correct direction of rotation of the engine; and responding to the determined direction of rotation being different from the correct direction of rotation by taking corrective action.
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2.发明申请公开(公告)号：US20200232385A1
公开(公告)日：2020-07-23
申请号：US16643724
申请日：2018-08-30
Applicant: Cummins Inc.
Inventor： Hoseinali Borhan , Dwight A. Doig , Govindarajan Kothandaraman , David E. Koeberlein
IPC: F02B75/28 , F02D41/00 , F02D41/30 , F02D41/04 , B60W10/12 , B60W10/196 , B60W10/06 , F02N11/08 , F02B37/24 , F02B37/10 , B60W30/192 , G01P13/04 , G01P3/481
Abstract: A method for controlling operation of an opposed piston engine is provided, comprising: determining a direction of rotation of the engine; comparing the determined direction of rotation to a correct direction of rotation of the engine; and responding to the determined direction of rotation being different from the correct direction of rotation by taking corrective action.
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公开(公告)号：US20180128202A1
公开(公告)日：2018-05-10
申请号：US15796302
申请日：2017-10-27
Applicant: CUMMINS INC.
Inventor： David E. Koeberlein , J. Steven Kolhouse
CPC classification number: F02F3/14 , C23C28/042 , C23C28/3215 , C23C28/3455 , F01B7/02 , F01B7/14 , F02B23/06 , F02B75/28 , F02B75/282 , F02F3/0084 , F02F3/04 , F02F3/22 , F02F3/26 , Y02T10/125
Abstract: A piston for an opposed-piston engine has a thermal barrier coating on at least the piston crown. The piston, at least the piston crown, is made of titanium or a titanium alloy. The thermal barrier coating includes a bonding material and a ceramic material. The bonding material can be present in the thermal barrier coating at an interface of the thermal barrier coating and the bulk of the piston material. The ceramic material can be a high R-Value material. In particular, the piston with a thermal barrier coating can be an exhaust piston for an opposed-piston engine.
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公开(公告)号：US20210207655A1
公开(公告)日：2021-07-08
申请号：US16737343
申请日：2020-01-08
Applicant: Cummins Inc.
Inventor： Julie Anne Colin , Nathan E. Coulombe , David E. Koeberlein
Abstract: A main bearing cap having a bearing cap body defining a vertical centerline, the bearing cap body having a top surface opposite a bottom surface, a pair of upper protruding parts and a pair of lower protruding parts that extend in a horizontal direction that is orthogonal to a longitudinal axis of a crankshaft, and a pair of posts that extend between the upper and the lower protruding parts. Each of the posts having a profiled side surface that is recessed to a profiled surface depth to reduce contact pressure and fretting between the bottom surface of the bearing cap and a joint surface of a bulkhead of a cylinder block when the parts are assembled. The profiled side surfaces also reduce the stiffness of the bearing cap to match more closely that of the cylinder block and direct load or force towards a centerline of the bearing cap.
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公开(公告)号：US20170335745A1
公开(公告)日：2017-11-23
申请号：US15521962
申请日：2015-10-27
Applicant: CUMMINS INC.
Inventor： Jithin Benjamin , Timothy C. Ernst , James A. Zigan , Kevin C. Augustin , David E. Koeberlein , Nimish Bagayatkar
CPC classification number: F01P3/18 , F01K9/003 , F01K23/065 , F01P3/20 , F01P5/12 , F01P2005/105 , F01P2005/125 , F01P2060/14 , F02G5/04
Abstract: Integrated cooling systems including a frame configured for mounting to a vehicle chassis in a path of ram air entering an engine compartment of a vehicle, a radiator connected to the frame in the ram air path, a waste heat recovery (WHR) condenser, a recouperator connected to the frame above a ram air path and coupled to the WHR condenser, and a coolant boiler connected to the frame below the ram air path and coupled to the radiator and recouperator are disclosed. Cooling systems configured for use in a WHR system, including an inlet header fixedly disposed on a first end of a condenser, the inlet header fluidly coupled to a heat exchanger to receive the working fluid, and a receiver fixedly disposed on a second end of the condenser opposite the first end, the receiver configured to receive the working fluid from the condenser are also disclosed.
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Patent Agency Ranking
公开(公告)号：US10731259B2
公开(公告)日：2020-08-04
申请号：US15898047
申请日：2018-02-15
Applicant: CUMMINS INC.
Inventor： David E. Koeberlein , J. Steven Kolhouse , Michael Hays
IPC: F02B75/28 , F02F3/12 , C23C4/01 , C23C4/134 , C23C4/02 , C23C4/129 , C23C28/04 , C23C4/11 , F01B7/14 , F02F3/22
Abstract: A method of making a piston for an opposed-piston engine comprises providing a piston. The piston comprises a substantially cylindrical portion including a sidewall and a piston crown located at an end of the piston. The piston crown comprises an end surface structured to form a combustion chamber when disposed within a cylinder bore in cooperation with an end surface of a cooperating opposing piston. A bonding layer including a bonding material is deposited on the end surface of the piston crown using a high velocity oxy-fuel spray process. At least one thermal barrier layer comprising ceramic material is deposited above the bonding layer.
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公开(公告)号：US10724467B2
公开(公告)日：2020-07-28
申请号：US15796302
申请日：2017-10-27
Applicant: CUMMINS INC.
Inventor： David E. Koeberlein , J. Steven Kolhouse
IPC: F02F3/14 , F02F3/00 , C23C28/04 , C23C28/00 , F02F3/04 , F02B75/28 , F02F3/26 , F02B23/06 , F01B7/14 , F01B7/02 , F02F3/22
Abstract: A piston for an opposed-piston engine has a thermal barrier coating on at least the piston crown. The piston, at least the piston crown, is made of titanium or a titanium alloy. The thermal barrier coating includes a bonding material and a ceramic material. The bonding material can be present in the thermal barrier coating at an interface of the thermal barrier coating and the bulk of the piston material. The ceramic material can be a high R-Value material. In particular, the piston with a thermal barrier coating can be an exhaust piston for an opposed-piston engine.
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公开(公告)号：US20180179644A1
公开(公告)日：2018-06-28
申请号：US15898047
申请日：2018-02-15
Applicant: CUMMINS INC.
Inventor： David E. Koeberlein , J. Steven Kolhouse , Michael Hays
CPC classification number: C23C28/042 , C23C4/01 , C23C4/02 , C23C4/11 , C23C4/129 , C23C4/134 , F01B7/14 , F02B75/28 , F02F3/12 , F02F3/22 , F05C2251/048
Abstract: A method of making a piston for an opposed-piston engine comprises providing a piston. The piston comprises a substantially cylindrical portion including a sidewall and a piston crown located at an end of the piston. The piston crown comprises an end surface structured to form a combustion chamber when disposed within a cylinder bore in cooperation with an end surface of a cooperating opposing piston. A bonding layer including a bonding material is deposited on the end surface of the piston crown using a high velocity oxy-fuel spray process. At least one thermal barrier layer comprising ceramic material is deposited above the bonding layer.
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公开(公告)号：US20180128203A1
公开(公告)日：2018-05-10
申请号：US15809358
申请日：2017-11-10
Applicant: CUMMINS INC.
Inventor： David E. Koeberlein , J. Steven Kolhouse
CPC classification number: F02F3/14 , C23C28/042 , C23C28/3215 , C23C28/3455 , F01B7/02 , F01B7/14 , F02B23/06 , F02B75/28 , F02B75/282 , F02F3/0084 , F02F3/04 , F02F3/22 , F02F3/26 , Y02T10/125
Abstract: A piston for an opposed-piston engine has a thermal barrier coating on at least the piston crown. The piston, at least the piston crown, is made of titanium or a titanium alloy. The thermal barrier coating includes a bonding material and a ceramic material. The bonding material can be present in the thermal barrier coating at an interface of the thermal barrier coating and the bulk of the piston material. The ceramic material can be a high R-Value material. In particular, the piston with a thermal barrier coating can be an exhaust piston for an opposed-piston engine.
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公开(公告)号：US11041528B1
公开(公告)日：2021-06-22
申请号：US16737343
申请日：2020-01-08
Applicant: Cummins Inc.
Inventor： Julie Anne Colin , Nathan E. Coulombe , David E. Koeberlein
Abstract: A main bearing cap having a bearing cap body defining a vertical centerline, the bearing cap body having a top surface opposite a bottom surface, a pair of upper protruding parts and a pair of lower protruding parts that extend in a horizontal direction that is orthogonal to a longitudinal axis of a crankshaft, and a pair of posts that extend between the upper and the lower protruding parts. Each of the posts having a profiled side surface that is recessed to a profiled surface depth to reduce contact pressure and fretting between the bottom surface of the bearing cap and a joint surface of a bulkhead of a cylinder block when the parts are assembled. The profiled side surfaces also reduce the stiffness of the bearing cap to match more closely that of the cylinder block and direct load or force towards a centerline of the bearing cap.
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