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1.发明申请Piston Having Combustion Bowl Shaped To Balance Combustion Efficiency And Emission Properties 有权具有燃烧碗形状的活塞平衡燃烧效率和排放特性公开(公告)号：US20130239925A1
公开(公告)日：2013-09-19
申请号：US13892612
申请日：2013-05-13
Applicant: Caterpillar, Inc.
Inventor： Aaron Karch , David A. Pierpont , Daniel Lang , James A. Subatch, Jr.
IPC: F02B23/06
CPC classification number: F02B23/06 , F02B23/0621 , F02B23/0624 , F02B23/0669 , F02B23/0672 , F02B23/0693 , F02B2275/14 , F02D21/08 , F02M26/23 , Y02T10/123 , Y02T10/125
Abstract: A piston for a compression ignition internal combustion engine includes a piston body having a combustion face defining a combustion bowl, and the combustion face including a compound bowl surface and a compound rim surface. The combustion face is profiled to balance a combustion efficiency property of the piston with emissions properties of the piston. A ratio of a diameter of the combustion bowl to a diameter of the cylinder bowl bore is from 0.68 to 0.74. Other dimensional and proportional features of the piston support low smoke and NOx production during operation.
Abstract translation: 压缩点火式内燃机的活塞包括具有限定燃烧碗的燃烧面的活塞体，燃烧面包括复合碗面和复合轮缘面。 燃烧面被成型以平衡活塞的燃烧效率特性和活塞的排放性质。 燃烧碗的直径与缸筒孔的直径的比率为0.68至0.74。 活塞的其他尺寸和比例特征在运行期间支持低烟和NOx生产。
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2.发明授权Piston having combustion bowl shaped to balance combustion efficiency and emission properties 有权具有燃烧碗形状以平衡燃烧效率和排放性能的活塞公开(公告)号：US09234451B2
公开(公告)日：2016-01-12
申请号：US13892612
申请日：2013-05-13
Applicant: Caterpillar Inc.
Inventor： Aaron Karch , David A. Pierpont , Daniel Lang , James A. Subatch
CPC classification number: F02B23/06 , F02B23/0621 , F02B23/0624 , F02B23/0669 , F02B23/0672 , F02B23/0693 , F02B2275/14 , F02D21/08 , F02M26/23 , Y02T10/123 , Y02T10/125
Abstract: A piston for a compression ignition internal combustion engine includes a piston body having a combustion face defining a combustion bowl, and the combustion face including a compound bowl surface and a compound rim surface. The combustion face is profiled to balance a combustion efficiency property of the piston with emissions properties of the piston. A ratio of a diameter of the combustion bowl to a diameter of the cylinder bowl bore is from 0.68 to 0.74. Other dimensional and proportional features of the piston support low smoke and NOx production during operation.
Abstract translation: 压缩点火式内燃机的活塞包括具有限定燃烧碗的燃烧面的活塞体，燃烧面包括复合碗面和复合轮缘面。 燃烧面被成型以平衡活塞的燃烧效率特性和活塞的排放性质。 燃烧碗的直径与缸筒孔的直径的比率为0.68至0.74。 活塞的其他尺寸和比例特征在运行期间支持低烟和NOx生产。
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