公开(公告)号：US06182630B2

公开(公告)日：2001-02-06

申请号：US09198297

申请日：1998-11-23

Applicant: Xiluo Zhu ,  Duraid Mahrus ,  Alan S. Brown

Inventor： Xiluo Zhu ,  Duraid Mahrus ,  Alan S. Brown

IPC: F02B910

CPC classification number: F02F3/22 ,  F02B23/0696 ,  F02F3/0023 ,  F02F3/0069 ,  F05C2201/021 ,  F05C2201/0433 ,  F05C2201/0448 ,  Y02T10/125

Abstract: A piston (20) for an internal combustion engine includes an upper crown (22) and a lower crown (24) that are each fabricated using a same strong material, such as steel and fastened together using a plurality of fasteners (50). The piston (20) provides increased strength resulting in improved design flexibility and smaller sized engines that produce the same amount of power. Piston ring grooves (100, 102, 104) are also provided in either one or both of the upper and lower crowns (22, 24) which control piston combustion height. A deeper combustion bowl (72) is also available with the piston (20).

Abstract translation: 用于内燃机的活塞（20）包括上冠（22）和下冠（24），所述上冠（22）和下冠（24）均使用相同的强材料（例如钢）制造并使用多个紧固件（50）紧固在一起。 活塞（20）提供增加的强度，导致改进的设计灵活性和产生相同功率量的较小尺寸的发动机。 活塞环槽（100,102,104）也设置在控制活塞燃烧高度的上，下冠冠（22,24）的一个或两个中。 活塞（20）也可以使用较深的燃烧碗（72）。

公开(公告)号：US06170441B2

公开(公告)日：2001-01-09

申请号：US09105734

申请日：1998-06-26

Applicant: Charles W. Haldeman ,  Brian S. Ahern

Inventor： Charles W. Haldeman ,  Brian S. Ahern

IPC: F02B4702

CPC classification number: F02M25/0228 ,  F02B3/06 ,  F02B41/04 ,  F02B47/02 ,  F02B2275/32 ,  F02F3/14 ,  F02F2200/04 ,  F02M25/038 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/121 ,  Y02T10/142 ,  Y02T10/16

Abstract: Highly efficient engine. The system includes an internal combustion engine having at least one piston in a cylinder, the cylinder including a cylinder head. The engine operates on an unsymmetrical expansion and compression cycle wherein the expansion portion of the cycle is greater than the compression portion of the cycle. The piston and cylinder head are lined with an insulating material having a selected thermal diffusivity. Apparatus is provided for injecting a supercritical mixture of fuel and water into the cylinder of the engine. The combination of these aspects results in a highly efficient engine.

Abstract translation: 高效发动机 该系统包括在气缸中具有至少一个活塞的内燃机，气缸包括气缸盖。 发动机在不对称的膨胀和压缩循环中运行，其中循环的膨胀部分大于循环的压缩部分。 活塞和气缸盖内衬有具有选定热扩散率的绝缘材料。 提供了用于将燃料和水的超临界混合物喷射到发动机气缸中的装置。 这些方面的组合导致高效率的发动机。

公开(公告)号：US6155157A

公开(公告)日：2000-12-05

申请号：US167444

申请日：1998-10-06

Applicant: Mark W. Jarrett

Inventor： Mark W. Jarrett

IPC: B23P15/10 ,  F02B23/06 ,  F02F3/00 ,  F01B31/08

CPC classification number: F02B23/0696 ,  B23P15/10 ,  F02F3/003 ,  F02B23/0621 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/125

Abstract: Past pistons have been susceptible to reduced longevity due to increased forces of combustion thereon during operating cycles of an engine. The present two piece unitary piston increases the longevity of pistons used with increased forces of combustion. For example, a head member has a crown portion defining a ring band portion having a bottom surface and a support portion. And, a skirt member defines a ring band support surface and a top surface. The head member and the skirt member have a preestablished material strength being generally the same. The head member and the skirt member are joined by an inertia welding process. The force of combustion acting on the crown portion is resisted by the ring band support surface being in contacting relationship with the bottom surface. Thus, the skirt member structure supports and resists the bending moment of the combustion forces on the head member.

Abstract translation: 过去的活塞在发动机工作循环期间由于增加的燃烧力而易于减少寿命。 现在的两件式单一活塞增加了随着燃烧力的增加而增加的活塞寿命。 例如，头部构件具有限定具有底表面和支撑部分的环带部分的冠部。 并且，裙部构件限定环带支撑表面和顶表面。 头部构件和裙部构件具有预先建立的材料强度通常相同。 头部件和裙部件通过惯性焊接工艺接合。 作用在冠部上的燃烧力被环带支撑表面与底面接触的关系抵抗。 因此，裙部构件结构支撑并抵抗头部构件上的燃烧力的弯矩。

公开(公告)号：US6112715A

公开(公告)日：2000-09-05

申请号：US202730

申请日：1999-03-19

Applicant: Eduardo Bueno Nigro ,  Jose Valentim Lima Sarabanda ,  Marcos Clemente ,  Germano Moreira de Almeida

Inventor： Eduardo Bueno Nigro ,  Jose Valentim Lima Sarabanda ,  Marcos Clemente ,  Germano Moreira de Almeida

IPC: F02B3/06 ,  F02B23/06 ,  F02F3/00 ,  F02F3/26 ,  F02F7/00 ,  F16J1/16

CPC classification number: F02F7/0085 ,  F02B23/0672 ,  F02F3/00 ,  F02F3/26 ,  F02F3/28 ,  F16J1/16 ,  F02B3/06 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2253/16 ,  Y02T10/125

Abstract: A piston which has a diameter of about 70 to about 100 mm and which is preferably produced with a resistant, malleable alloy having low density (lower than about 3 g/cm.sup.3) and mechanical properties at high temperatures such that a yield stress greater than about 120 Mpa at temperatures of the order of 300.degree. C. to 350.degree. C. is obtained. In the preferred embodiment, the piston is a single piece piston, comprising a head portion of diameter D ranging from about 70 to about 100 mm and a skirt portion downwardly projected from the head portion and inside which is provided a pair of wrist pin bosses, each having a hole with a diameter d and axial extension L for bearing the articulating wrist pin of the piston. The embodiment described improves the efficiency that the piston gives to the engine because it maintains the piston resistance at high levels while reducing its weight such that the piston operates at a rate of at least about 17 grams of weight per each kilowatt of power for each engine cylinder.

Abstract translation: PCT No.PCT / BR97 / 00035 Sec。 371日期1999年3月19日 102（e）1999年3月19日PCT提交1997年6月13日PCT公布。 第WO97 / 48895号公报 日期1997年12月24日具有约70至约100mm直径的活塞，其优选地由具有低密度（低于约3g / cm 3）的低密度（低于约3g / cm 3）的耐磨且可延展的合金制成，并且在高温下具有机械性能， 在300℃至350℃的温度下获得大于约120Mpa的屈服应力。 在优选实施例中，活塞是单件式活塞，其包括直径D为约70至约100mm的头部，以及从头部向下突出的裙部，其中设置有一对腕销凸起， 每个孔具有直径d和轴向延伸部L的孔，用于承载活塞的铰接腕销。 所描述的实施例提高了活塞给发动机的效率，因为其将活塞阻力保持在高水平，同时减小其重量，使得活塞以每个发动机每千瓦功率至少约17克的重量的速率运行 圆筒。

公开(公告)号：US6062125A

公开(公告)日：2000-05-16

申请号：US91311

申请日：1998-06-15

Applicant: Eberhard Bubeck

Inventor： Eberhard Bubeck

IPC: F02F3/00 ,  F02F3/02 ,  F02F5/00 ,  F16J1/02 ,  F16J1/04

CPC classification number: F16J1/02 ,  F02F3/0015 ,  F02F3/02 ,  F05C2201/0448

Abstract: In a piston-cylinder assembly with a shaftless piston, the aim is to improve the lateral guidance of the connecting rod, to reduce edge wear and the seizing tendency in the event of fault during the combustion process. Consequently, the piston has at least one supporting ring, form-fittingly on the bosses which guides in the cylinder the piston along with the piston head.

Abstract translation: PCT No.PCT / DE96 / 02102 Sec。 371日期1998年6月15日第 102（e）1998年6月15日PCT PCT 1996年10月31日PCT公布。 公开号WO97 / 22820 PCT 日期1997年6月26日在具有无轴活塞的活塞 - 气缸组件中，目的是改善连杆的横向引导，以减少在燃烧过程中发生故障时的边缘磨损和咬合倾向。 因此，活塞具有至少一个支撑环，其形成在凸台上，该凸台在气缸中引导活塞以及活塞头。

公开(公告)号：US5913960A

公开(公告)日：1999-06-22

申请号：US463361

申请日：1995-06-05

Applicant: David Francis Fletcher-Jones

Inventor： David Francis Fletcher-Jones

IPC: F02F3/00 ,  F02F3/16 ,  F02F3/28

CPC classification number: F02F3/16 ,  F02F3/0015 ,  F02F3/0069 ,  F02F3/22 ,  F02F2003/0061 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  Y10T29/49252 ,  Y10T29/49256

Abstract: A method is described of making a piston crown, the method comprises the steps of making a lower crown portion, the lower crown portion also having piston pin bosses, making an upper crown portion which co-operates with the lower crown portion and joining the lower and upper crown portions together to form an oil retaining chamber. The upper and lower crown portions may be made by a precision casting technique in a ferrous alloy and may be joined by a brazing operation. The piston crown may be part of an articulated piston or may further include integral skirt portions.

Abstract translation: 描述了制造活塞冠的方法，该方法包括以下步骤：制造下冠部，下冠部还具有活塞销凸起，形成与下冠部配合的上冠部，并将下冠部 和上冠部分在一起以形成保油室。 上下冠部可以通过精密铸造技术在铁合金中制成，并且可以通过钎焊操作连接。 活塞顶部可以是铰接活塞的一部分，或者还可以包括一体的裙部。

公开(公告)号：US5903974A

公开(公告)日：1999-05-18

申请号：US849047

申请日：1997-04-07

Applicant: Kenji Nakajima

Inventor： Kenji Nakajima

IPC: B23P23/04 ,  B21D53/16 ,  B21D53/18 ,  B21H1/06 ,  B23P15/06 ,  F02F3/00 ,  F16J9/00 ,  B23P15/08 ,  B23P15/10

CPC classification number: F16J9/00 ,  B21D53/18 ,  B23P15/06 ,  F02F3/00 ,  B21H1/06 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042 ,  Y10T29/49265 ,  Y10T29/49279 ,  Y10T29/51 ,  Y10T29/5147

Abstract: A method of and apparatus for producing a hollow ring groove insert for an engine piston, which is inserted by casting near the top of a piston for an engine to constitute a ring groove and a cooling path adjacent to the ring groove. The hollow ring groove insert comprises a formed sheet ring and a ring body having an inner peripheral surface and a piston ring groove. A process for producing the formed sheet ring includes the steps of fitting a sheet ring on a forming die such that the sheet ring covers a forming groove; pressing a forming roll against the sheet ring while rotating the forming die with a floating ring being placed in a movable state where it is radially movable by disengagement from a tapered portion of a centering member, thereby forming circular collars on the sheet ring; pressing a cutting tool against the outer peripheral portions of the circular collars with the floating ring being placed in a state where it is centered and fixed in coincidence with the axial center of the forming die by engagement with the tapered portion of the centering member, thereby turning the outer peripheral portions of the circular collars; and pressing a deburring tool against the outer peripheral portions of the circular collars with the floating ring being placed in the same fixed state, thereby removing burrs from the circular collars.

Abstract translation: PCT No.PCT / JP96 / 01577 Sec。 371日期1997年4月7日 102（e）1997年4月7日PCT PCT 1996年6月11日PCT公布。 公开号WO97 / 07330 日期1997年2月27日一种用于制造用于发动机活塞的中空环槽插入件的方法和装置，其通过在用于发动机的活塞的顶部附近铸造而插入以构成环槽和与环槽相邻的冷却路径 。 中空环槽插入件包括成形片环和具有内周面和活塞环槽的环体。 一种用于生产成形片环的方法包括以下步骤：将片环安装在成形模上，使得片环覆盖成形槽; 将成形辊压靠在片状环上，同时使浮动环转动成形模具处于可移动状态，通过从定心件的锥形部分脱离可径向移动，从而在片环上形成圆环; 将切割工具压靠圆环的外周部分，其中浮环被置于其中心并通过与定心构件的锥形部分接合而与成形模的轴心重合而固定的状态，由此 转动圆形环的外围部分; 并且将所述浮环固定在相同的固定状态下，将所述去毛刺工具压靠在所述圆环的外周部，从而从所述圆环上除去毛刺。

公开(公告)号：US5839407A

公开(公告)日：1998-11-24

申请号：US868517

申请日：1997-06-04

Applicant: Takao Suzuki ,  Asami Tsuchiya

Inventor： Takao Suzuki ,  Asami Tsuchiya

IPC: F02F3/00 ,  F02F3/04 ,  F16J1/16

CPC classification number: F02F3/0076 ,  F02F3/042 ,  F05C2201/021 ,  F05C2201/0448

Abstract: A piston of an internal combustion engine includes a piston head having an end portion, a bottom surface and an outer peripheral surface. A pin boss extends from the bottom surface of the piston head, the pin boss having an end surface, a piston pin bore in the center of the pin boss and a peripheral portion on the end surface, the end surface being located inside the outer peripheral surface of the piston head. A connecting portion extends from the peripheral portion of the pin boss to the end portion of the piston head, the connecting portion being shaped in accordance with the piston pin bore, the connecting portion having a reinforcement provided thereon.

Abstract translation: 内燃机的活塞包括具有端部，底面和外周面的活塞头。 销凸台从活塞头的底面延伸，销凸台具有端面，销销凸起中心的活塞销孔和端表面上的周边部分，端面位于外周边 活塞头表面。 连接部从销销凸起的周边部延伸到活塞头的端部，连接部根据活塞销孔成形，连接部具有设置在其上的加强件。

公开(公告)号：US5778846A

公开(公告)日：1998-07-14

申请号：US849738

申请日：1997-07-03

Applicant: Siegfried Mielke

Inventor： Siegfried Mielke

IPC: F02F3/00 ,  F16J1/14

CPC classification number: F02F3/003 ,  F02F2003/0061 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2203/0882

Abstract: In a piston head of a multiple component piston for internal combustion engines, the piston floor continues radially outwards into the ring section which is provided with the piston ring grooves, the supports which carry the hubs are arranged at a distance from the inner face of the ring section and the piston pin which bears the piston shaft can be mounted in the bores of the piston pin boss. An improved manufacture of the piston head is ensured by connecting the ring section with the piston floor via a weld, solder, friction or positive locking joint.

Abstract translation: PCT No.PCT / EP96 / 00145 Sec。 371日期1997年7月3日 102（e）日期1997年7月3日PCT 1996年1月16日PCT PCT。 第WO96 / 22459号公报 日期1996年7月25日在用于内燃机的多部件活塞的活塞头中，活塞底板径向向外延伸到设置有活塞环槽的环部分中，承载轮毂的支撑件布置在距离 环形部分的内表面和承载活塞轴的活塞销可安装在活塞销凸台的孔中。 通过焊接，焊接，摩擦或正向锁定接头将环形部分与活塞底板连接，确保了活塞头的改进制造。

公开(公告)号：US5649509A

公开(公告)日：1997-07-22

申请号：US667510

申请日：1996-06-21

Applicant: Kyong Tae Chang

Inventor： Kyong Tae Chang

IPC: F02B75/32 ,  F02F3/00 ,  F16C7/02 ,  F16C9/04 ,  F16D3/04 ,  F16J1/10

CPC classification number: F02B75/32 ,  F02F3/0015 ,  F16C7/023 ,  F16C9/04 ,  F16J1/10 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042 ,  Y10T74/18208 ,  Y10T74/2162

Abstract: In an internal combustion engine with a reciprocating movement which uses gasoline, diesel fuel or other fuels to generate forces when fuels attain explosive combustion, the piston is pushed in the inner cylinder. The motion of the piston with the reciprocating movement (straight motion) is transferred to a crank shaft having rotation motion, or the rotation motion of the crank shaft is transferred to the piston having straight motion (reciprocating movement). By such transfer, in order to use in compressed feed for fluids, when the connecting rod is provided with a universal joint type and a ball joint type, although the relative position errors and right angle are staggered within a given range, abnormal friction, noises and vibrations never take place. Accordingly, pollutions such as noise, vibration and noxious exhaust gases are dramatically reduced, fuels are surprisingly and significantly saved, and the life of the machine is doubly increased. Further, the piston is divided into a crown part and a skirt part, and the crown part is used with a piston ring in a conventional way. However, the skirt part is attached to a metal roller mounted on a metal bracket, or a metal plate or spring, and the piston is provided with an expansion property. Accordingly, the gap or clearance between the cylinder and the piston is completely removed, and maximum smoothing motion takes place when the piston is moved up and down. By such smoothing action of the piston, a state without tilt and slap is realized. Vibrations and noises due to tilt and slap are completely removed.

Abstract translation: 在具有往复运动的内燃机中，当燃料达到爆炸性燃烧时，使用汽油，柴油燃料或其它燃料产生力，活塞被推入内筒。 往复运动（直线运动）的活塞的运动被传递到具有旋转运动的曲轴，或者曲轴的旋转运动被传递到具有直线运动（往复运动）的活塞。 通过这种转移，为了在流体的压缩进料中使用，当连杆具有万向节类型和球窝型时，尽管相对位置误差和直角在给定范围内交错，但是异常摩擦，噪声 振动永远不会发生。 因此，噪音，振动和有害废气等污染物大大减少，令人惊奇地，显着地节省燃料，并且机器的寿命增加了一倍。 此外，活塞被分成冠部和裙部，并且冠部以常规方式与活塞环一起使用。 然而，裙部附接到安装在金属支架上的金属辊或金属板或弹簧，并且活塞具有膨胀特性。 因此，气缸和活塞之间的间隙或间隙被完全去除，并且当活塞上下移动时发生最大平滑运动。 通过活塞的这种平滑作用，实现了没有倾斜和拍击的状态。 由于倾斜和拍击而引起的振动和噪音被完全清除。