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公开(公告)号：US09151290B2
公开(公告)日：2015-10-06
申请号：US13297353
申请日：2011-11-16
申请人： Tetsuya Yoshimura , Katsumi Mori , Kenichi Niinuma
发明人： Tetsuya Yoshimura , Katsumi Mori , Kenichi Niinuma
CPC分类号： F04B53/162 , B23P9/00 , F04B1/0421 , Y10T29/49236
摘要： A cylinder body includes a cylinder hole and a discharge flow passage. The cylinder hole receives a plunger and forms a pressurizing chamber in one axial end portion thereof. The discharge flow passage is connected to the pressurizing chamber and is adapted to guide and discharge the pressurized fuel from the pressurizing chamber to an outside of the housing. A connection opening of the discharge flow passage is formed in a hole wall of the cylinder hole. A pressure is applied to a predetermined prestressing subject area in the hole wall of the cylinder hole and a passage wall of the discharge flow passage through autofrettage to generate a residual compression stress in the predetermined prestressing subject area and thereby to form a prestressed area of a final product. The prestressing subject area includes an inner peripheral edge of the connection opening.
摘要翻译： 缸体包括缸孔和排出流路。 气缸孔容纳柱塞，并在其一个轴向端部形成加压室。 排出流路连接到加压室，并且适于将加压燃料从加压室引导和排出到壳体的外部。 排气流路的连接口形成在缸孔的孔壁上。 通过自动补偿将压力施加到气缸孔的孔壁中的预定的预应力区域和排出流路的通道壁，以在预定的预应力区域中产生残余压缩应力，从而形成预应力区域 完成品。 预应力主体区域包括连接开口的内周边缘。
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公开(公告)号：US20120152112A1
公开(公告)日：2012-06-21
申请号：US13297353
申请日：2011-11-16
申请人： Tetsuya YOSHIMURA , Katsumi Mori , Kenichi Niinuma
发明人： Tetsuya YOSHIMURA , Katsumi Mori , Kenichi Niinuma
CPC分类号： F04B53/162 , B23P9/00 , F04B1/0421 , Y10T29/49236
摘要： A cylinder body includes a cylinder hole and a discharge flow passage. The cylinder hole receives a plunger and forms a pressurizing chamber in one axial end portion thereof. The discharge flow passage is connected to the pressurizing chamber and is adapted to guide and discharge the pressurized fuel from the pressurizing chamber to an outside of the housing. A connection opening of the discharge flow passage is formed in a hole wall of the cylinder hole. A pressure is applied to a predetermined prestressing subject area in the hole wall of the cylinder hole and a passage wall of the discharge flow passage through autofrettage to generate a residual compression stress in the predetermined prestressing subject area and thereby to form a prestressed area of a final product. The prestressing subject area includes an inner peripheral edge of the connection opening.
摘要翻译： 缸体包括缸孔和排出流路。 气缸孔容纳柱塞，并在其一个轴向端部形成加压室。 排出流路连接到加压室，并且适于将加压燃料从加压室引导和排出到壳体的外部。 排气流路的连接口形成在缸孔的孔壁上。 通过自动补偿将压力施加到气缸孔的孔壁中的预定的预应力区域和排出流路的通道壁，以在预定的预应力区域中产生残余压缩应力，从而形成预应力区域 完成品。 预应力主体区域包括连接开口的内周边缘。
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