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1. 发明授权

US06862976B2 Monobloc piston 有权
标题翻译：单体活塞
公开(公告)号：US06862976B2
公开(公告)日：2005-03-08
申请号：US10253785
申请日：2002-09-24
申请人： Randall R. Gaiser , Xiluo Zhu , Roberto Bueno Nigro
发明人： Randall R. Gaiser , Xiluo Zhu , Roberto Bueno Nigro
IPC分类号： F01M1/08 , F01P3/10 , F02F3/00 , F02F3/22 , F02F3/26 , F16J1/09 , F01B31/08
CPC分类号： F02F3/00 , F01M2001/083 , F02F3/22 , F02F2003/0007
摘要： A monobloc piston has at least two steel parts welded together to define an inner cooling gallery. An outer ring belt is spaced from an inner annular support wall and is joined by a combustion bowl and a lower wall. A pair of pin bosses have axially aligned pin bores. A skirt is formed as one immovable piece with the pin bores. The piston has the following dimensional relationships: ISMD=42-55% of BD, where ISMD is a mean diameter on the inner support wall and BD is an outer diameter of the ring belt wall, ISW=3-8% of BD, where ISW is a sectional width of the inner support wall, CH>53% of BD where CH is a compression height measured between the pin bore axis and the upper surface, TLH>4% of BD, where TLH is a top land height measured between the top of the upper ring groove and the upper surface, SL=30-80% of BD, where SL is a length of the skirt measured between the upper and lower ends of the skirt, SW=2.5-6.5% of BD, where SW is a thickness of the skirt, and GV=150-250% of BD2 and 5-20% of BD2×CH, where GV is a volume of the oil gallery.
摘要翻译：单块活塞具有焊接在一起的至少两个钢部件以限定内部冷却库。外环带与内环形支撑壁间隔开并通过燃烧碗和下壁连接。一对销凸起具有轴向对齐的销孔。裙子形成为具有销孔的一个不可移动的部件。活塞具有以下尺寸关系：ISMD = BD的42-55％，其中ISMD是内支撑壁上的平均直径，BD是环带壁的外径，ISW = BD的3-8％，其中 ISW是内支撑壁的截面宽度，CH> 53％的BD，其中CH是在销孔轴线和上表面之间测量的压缩高度，TLH> BD的4％，其中TLH是在上环槽和上表面的顶部，SL = BD的30-80％，其中SL是在裙部的上端和下端之间测量的裙部的长度，SW = BD的2.5-6.5％，其中 SW是裙部的厚度，GV = BD 2的150-250％和BD 2 xCH的5-20％，其中GV是油画廊的体积。

2. 发明授权

US08539928B2 Piston assembly and connecting rod having a profiled wrist pin bore therefor 有权
标题翻译：活塞组件和连杆具有成型的手腕销孔
公开(公告)号：US08539928B2
公开(公告)日：2013-09-24
申请号：US12330932
申请日：2008-12-09
申请人： Roberto Bueno Nigro , Kai Wang
发明人： Roberto Bueno Nigro , Kai Wang
IPC分类号： F02B75/32
CPC分类号： F02F3/00 , F02B23/0672 , F02B23/0693 , F16C9/04 , F16C23/041 , F16C33/10 , F16J1/16 , Y02T10/125
摘要： A piston assembly and connecting rod therefor is provided. The connecting rod has an elongate body extending to an end for operable attachment to a piston. The end has a wrist pin bore extending between opposite sides of the body. The wrist pin bore has a wavy profile extending between the sides. The wavy profile has at least one concave surface with a valley extending along a circumferential direction of the wrist pin bore and convex surfaces having peaks extending along a circumferential direction of the wrist pin bore on laterally opposite sides of the valley. The peaks and valleys cooperate to form a smooth load gradient and uniform lubrication flow across the interface region between the wrist pin bore and the wrist pin extending therethrough.
摘要翻译：提供一种活塞组件及其连接杆。连杆具有延伸到端部的细长主体以可操作地附接到活塞。该端部具有在主体的相对侧之间延伸的腕销孔。腕针孔具有在两侧之间延伸的波状轮廓。波浪形轮廓具有至少一个凹形表面，其具有沿着腕针孔的圆周方向延伸的谷部，并且凸起表面具有沿着在山谷的横向相对侧上的腕针孔的圆周方向延伸的峰部。峰和谷合作形成平滑的载荷梯度，并且穿过腕针孔和延伸穿过其的腕针之间的界面区域的均匀润滑流。

3. 发明申请

US20080245230A1 PISTON ASSEMBLY AND WRIST PIN THEREFOR PROVIDING A METHOD OF CONTROLLING ROTATION OF THE WRIST PIN WITHIN CORRESPONDING PISTON PIN BORES AND CONNECTING ROD WRIST PIN BORE 有权
标题翻译：活塞组件和手柄引脚，提供一种控制在相应的活塞引脚孔和连接手轮引脚孔内的手轮转动的方法
公开(公告)号：US20080245230A1
公开(公告)日：2008-10-09
申请号：US11696278
申请日：2007-04-04
申请人： Roberto Bueno Nigro
发明人： Roberto Bueno Nigro
IPC分类号： F16J1/00
CPC分类号： F16J1/16 , F02F3/00
摘要： A piston assembly and wrist pin therefor provide a method for controlling rotation of the wrist pin with respective piston pin bores and connecting rod small end wrist pin bore. The wrist pin has a cylindrical body with opposite end portions spaced axially from one another by a central portion and a through bore of varying internal diameter. The through bore has first diameter and second diameters, wherein the first diameter is less than the second diameter. The first diameter is defined in one of the central portion or the opposite end portions, while the second diameter is defined in the other of the central portion or the opposite end portions. The first diameter transitions to the second diameter generally between the small end of the connecting rod and the pin bores of the piston.
摘要翻译：一种活塞组件和腕针提供了一种用于控制具有相应活塞销孔和连杆小端腕销孔的腕针旋转的方法。腕针具有圆柱形本体，其具有通过中心部分和具有不同内径的通孔彼此轴向间隔开的相对端部。通孔具有第一直径和第二直径，其中第一直径小于第二直径。第一直径限定在中心部分或相对端部之一中，而第二直径限定在中心部分或相对端部中的另一个部分中。第一直径通常在连杆的小端和活塞的销孔之间转变到第二直径。

4. 发明授权

US07603944B2 Piston assembly and wrist pin therefor providing a method of controlling rotation of the wrist pin within corresponding piston pin bores and connecting rod wrist pin bore 有权
标题翻译：活塞组件和腕针提供了一种方法，用于控制相应活塞销孔和连接杆腕针孔内的腕针旋转
公开(公告)号：US07603944B2
公开(公告)日：2009-10-20
申请号：US11696278
申请日：2007-04-04
申请人： Roberto Bueno Nigro
发明人： Roberto Bueno Nigro
IPC分类号： F02F3/22 , F01P3/10
CPC分类号： F16J1/16 , F02F3/00
摘要： A piston assembly and wrist pin therefor provide a method for controlling rotation of the wrist pin with respective piston pin bores and connecting rod small end wrist pin bore. The wrist pin has a cylindrical body with opposite end portions spaced axially from one another by a central portion and a through bore of varying internal diameter. The through bore has first diameter and second diameters, wherein the first diameter is less than the second diameter. The first diameter is defined in one of the central portion or the opposite end portions, while the second diameter is defined in the other of the central portion or the opposite end portions. The first diameter transitions to the second diameter generally between the small end of the connecting rod and the pin bores of the piston.
摘要翻译：一种活塞组件和腕针提供了一种用于控制具有相应活塞销孔和连杆小端腕销孔的腕针旋转的方法。腕针具有圆柱形本体，其具有通过中心部分和具有不同内径的通孔彼此轴向间隔开的相对端部。通孔具有第一直径和第二直径，其中第一直径小于第二直径。第一直径限定在中心部分或相对端部之一中，而第二直径限定在中心部分或相对端部中的另一个部分中。第一直径通常在连杆的小端和活塞的销孔之间转变到第二直径。

5. 发明申请

US20090145394A1 PISTON ASSEMBLY AND CONNECTING ROD HAVING A PROFILED WRIST PIN BORE THEREFOR 有权
标题翻译：活塞组件和连接具有轮廓的针孔的ROD
公开(公告)号：US20090145394A1
公开(公告)日：2009-06-11
申请号：US12330932
申请日：2008-12-09
申请人： Roberto Bueno Nigro , Kai Wang
发明人： Roberto Bueno Nigro , Kai Wang
IPC分类号： F02F3/00
CPC分类号： F02F3/00 , F02B23/0672 , F02B23/0693 , F16C9/04 , F16C23/041 , F16C33/10 , F16J1/16 , Y02T10/125
摘要： A piston assembly and connecting rod therefor is provided. The connecting rod has an elongate body extending to an end for operable attachment to a piston. The end has a wrist pin bore extending between opposite sides of the body. The wrist pin bore has a wavy profile extending between the sides. The wavy profile has at least one concave surface with a valley extending along a circumferential direction of the wrist pin bore and convex surfaces having peaks extending along a circumferential direction of the wrist pin bore on laterally opposite sides of the valley. The peaks and valleys cooperate to form a smooth load gradient and uniform lubrication flow across the interface region between the wrist pin bore and the wrist pin extending therethrough.
摘要翻译：提供一种活塞组件及其连接杆。连杆具有延伸到端部的细长主体以可操作地附接到活塞。该端部具有在主体的相对侧之间延伸的腕销孔。腕针孔具有在两侧之间延伸的波状轮廓。波浪形轮廓具有至少一个凹形表面，其具有沿着腕针孔的圆周方向延伸的谷部，并且凸起表面具有沿着在山谷的横向相对侧上的腕针孔的圆周方向延伸的峰部。峰和谷合作形成平滑的载荷梯度，并且穿过腕针孔和延伸穿过其的腕针之间的界面区域的均匀润滑流。

6. 发明授权

US06502539B2 Articulated piston having a profiled skirt 失效
标题翻译：铰接活塞具有异型裙
公开(公告)号：US06502539B2
公开(公告)日：2003-01-07
申请号：US09872728
申请日：2001-06-01
申请人： Carmo Ribeiro , Roberto Bueno Nigro
发明人： Carmo Ribeiro , Roberto Bueno Nigro
IPC分类号： F16J900
CPC分类号： F02F3/0069
摘要： An articulated piston includes a crown and a separate skirt joined in articulated manner to the pin bosses of the crown by a wrist pin. The skirt has opposing thrust surfaces which contact the wall of a cylinder bore of an engine when the piston experiences side loading during operation. The thrust surfaces have a vertical profile which is generally symmetrical about a center plane containing the axis of a pin bore of the skirt. The profile includes tapered end sections and a wide, shallow central depressed region. Under normal operation, the depressed region channels lubricant to the pin bores. The twin peaked profile distributes side loads and stress above and below the pin bore plane and under heavy load, the depressed region bows outwardly presenting a flat, full contact surface between the peaked regions for decreasing the wear load on the thrust surfaces.
摘要翻译：一个铰接式活塞包括一个表冠和一个单独的裙子，它通过腕针以铰接的方式连接到表冠的销凸起。当活塞在操作期间经历侧面装载时，裙部具有相对的推力表面，其接触发动机的气缸孔的壁。推力表面具有垂直轮廓，该轮廓通常围绕包含裙部的销孔的轴线的中心平面对称。型材包括锥形端部和宽而浅的中央凹陷区域。在正常操作下，凹陷区域通向针孔的润滑剂。双峰形轮廓分布在销孔平面上方和下方的侧向载荷和应力，并且在重载荷下，凹陷区域向外弯曲，在峰值区域之间呈现平坦的全接触表面，以减小推力面上的磨损负载。

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