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Patent Agency Ranking
公开(公告)号：US20140216425A1
公开(公告)日：2014-08-07
申请号：US13757220
申请日：2013-02-01
Applicant: ACHATES POWER, INC.
Inventor： Brian J. Callahan
IPC: F02B23/08
CPC classification number: F02B25/08 , F02B23/0663 , F02B25/14 , F02B33/04 , F02B61/045 , F02B2075/025 , F02F1/186 , F02F1/22
Abstract: A port for a cylinder of a two-stroke cycle engine includes at least one generally circumferential array of port openings. Port openings have a shape that reduces ring clipping during engine operation. The port opening shape is defined at a bore surface by opposing top and bottom edges joined by side edges. Each of the top and bottom edges is characterized by rounded corner transitions to the side edges, a rounded peak, and inclined ramp portions extending from the rounded corner transitions to the rounded peak.
Abstract translation: 用于二冲程循环发动机的气缸的端口包括端口开口的至少一个大致圆周的阵列。 端口开口具有在发动机运行期间减少环形夹紧的形状。 端口开口形状通过由侧边缘连接的相对的顶部和底部边缘限定在孔表面。 顶部和底部边缘中的每一个的特征在于向侧边缘的圆角转变，圆形峰值以及从圆角转变延伸到圆形峰值的倾斜斜坡部分。
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2.发明授权公开(公告)号：US10215129B2
公开(公告)日：2019-02-26
申请号：US15232183
申请日：2016-08-09
Applicant: ACHATES POWER, INC.
Inventor： Brian J. Callahan
Abstract: A port opening edge shape for a port in a cylinder of an opposed-piston combustion engine is optimized for flow area, as well as for minimization of piston ring clipping. The port opening edge shape includes a top edge, a bottom edge, a first and second side edge connecting the top and bottom edge, and an apex in the top edge. The apex has the minimum radius of curvature of the port opening edge shape. A spline that defines the port opening edge shape can be calculated based upon a maximum height, a full width, an amount or degree of skew, and a minimum radius of curvature. A model can measure values for engine performance and determine which spline defines a port opening edge shape yields a desired engine performance.
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公开(公告)号：US10323563B2
公开(公告)日：2019-06-18
申请号：US15145705
申请日：2016-05-03
Applicant: ACHATES POWER, INC.
Abstract: A configuration for a uniflow-scavenged, opposed-piston engine reduces exhaust cross-talk caused by mass flow between cylinders resulting from one cylinder having an open exhaust port during scavenging and/or charging while an adjacent cylinder is undergoing blowdown. Some configurations include a wall or other barrier feature between cylinders that are adjacent to each other and fire one after the other. Additionally, or alternatively, some engine configurations include cylinders with intake and exhaust ports sized so that there is an overlap in crank angle of two or more cylinders having open exhaust ports of about 65 crank angle degrees or less.
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4.发明授权公开(公告)号：US10082099B2
公开(公告)日：2018-09-25
申请号：US15277930
申请日：2016-09-27
Applicant: ACHATES POWER, INC.
Inventor： Brian J. Callahan
Abstract: A port opening edge shape for a port in a cylinder of an opposed-piston combustion engine is optimized for flow area, as well as for minimization of piston ring clipping. The port opening edge shape includes a top edge, a bottom edge, a first and second side edge connecting the top and bottom edge, and an apex in the top edge. The apex has the minimum radius of curvature of the port opening edge shape. A spline that defines the port opening edge shape can be calculated based upon a maximum height, a full width, an amount or degree of skew, and a minimum radius of curvature. A model can measure values for engine performance and determine which spline defines a port opening edge shape yields a desired engine performance.
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公开(公告)号：US09068498B2
公开(公告)日：2015-06-30
申请号：US13757220
申请日：2013-02-01
Applicant: Achates Power, Inc.
Inventor： Brian J. Callahan
IPC: F02B25/00 , F02B25/08 , F02F1/18 , F02F1/22 , F02B33/04 , F02B61/04 , F02B25/14 , F02B23/06 , F02B75/02
CPC classification number: F02B25/08 , F02B23/0663 , F02B25/14 , F02B33/04 , F02B61/045 , F02B2075/025 , F02F1/186 , F02F1/22
Abstract: A port for a cylinder of a two-stroke cycle engine includes at least one generally circumferential array of port openings. Port openings have a shape that reduces ring clipping during engine operation. The port opening shape is defined at a bore surface by opposing top and bottom edges joined by side edges. Each of the top and bottom edges is characterized by rounded corner transitions to the side edges, a rounded peak, and inclined ramp portions extending from the rounded corner transitions to the rounded peak.
Abstract translation: 用于二冲程循环发动机的气缸的端口包括端口开口的至少一个大致圆周的阵列。 端口开口具有在发动机运行期间减少环形夹紧的形状。 端口开口形状通过由侧边缘连接的相对的顶部和底部边缘限定在孔表面。 顶部和底部边缘中的每一个的特征在于向侧边缘的圆角转变，圆形峰值以及从圆角转变延伸到圆形峰值的倾斜斜坡部分。
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