公开(公告)号：US06244161B1

公开(公告)日：2001-06-12

申请号：US09414269

申请日：1999-10-07

Applicant: Martin R. Myers ,  Carmo Ribeiro

Inventor： Martin R. Myers ,  Carmo Ribeiro

IPC: F16J104

CPC classification number: F02F3/003 ,  B23K20/12 ,  C22C38/12 ,  C22C38/18 ,  C22C38/44 ,  F02F2200/04 ,  F05C2201/021 ,  F05C2201/0433 ,  F05C2201/0448 ,  F05C2251/042

Abstract: This invention relates to a high temperature-resistant piston head. The piston head includes a first portion formed of a first material of heat-resistant steel alloy and the second portion is formed of a second a material of steel alloy that may be the same or may or different from the first material. The first and second portions are joined by a friction weld to form the assembled piston head. The heat-resistant steel alloy includes about 0.1 to about 0.5 wt % carbon, up to about 0.6 wt % manganese, about 4.0 to about 6.0 wt % chromium, about 0.45 to about 0.65 wt % molybdenum, up to about 0.5 wt % nickel and the balance iron and incidental impurities. In one form the second material includes about 0.30 to about 0.55 wt % carbon, about 0.4 to about 1.10 wt % manganese, about 0.40 to about 1.25 wt % chromium, about 0.15 to about 0.45 wt % molybdenum, up to about 0.4 wt % silicon, up to about 2 wt % Ni and greater than about 90 wt % iron.

Abstract translation: 本发明涉及耐高温活塞头。 活塞头包括由耐热钢合金的第一材料形成的第一部分，第二部分由第二材料形成，该材料可以与第一材料相同或可以或不同。 第一和第二部分通过摩擦焊接连接以形成组装的活塞头。 耐热钢合金包括约0.1至约0.5重量％的碳，至多约0.6重量％的锰，约4.0至约6.0重量％的铬，约0.45至约0.65重量％的钼，至多约0.5重量％的镍，以及 余铁和附带杂质。 在一种形式中，第二种材料包括约0.30-约0.55wt％的碳，约0.4-约1.10wt％的锰，约0.40-约1.25wt％的铬，约0.15-约0.45wt％的钼，至多约0.4wt％的硅 ，至多约2重量％的Ni和大于约90重量％的铁。

公开(公告)号：US06216585B1

公开(公告)日：2001-04-17

申请号：US09440844

申请日：1999-11-16

Applicant: Venkatesh Chellappa

Inventor： Venkatesh Chellappa

IPC: F16J104

CPC classification number: F02F3/0023 ,  C04B35/83 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2203/0808 ,  F05C2251/042 ,  Y10T29/49249 ,  Y10T29/49259 ,  Y10T29/49261

Abstract: An internal combustion engine component assembly including piston, wrist pin, and cylinder sleeve, all constructed of a matching carbon-carbon composite is disclosed. The piston is a two-piece assembly divided in crown and skirt, each fabricated individually to optimize the most desirable properties in the respective cylinder areas in which they operate. The crown is fabricated by placing the fiber and binder into a compression mold and pyrolizing(heating) the resulting preform at a high temperature in the range of 1500 to 2000 degrees C. to achieve high temperature strength, and high thermal conductivity that continue after machining to the finished crown part. The skirt, a separate piece, on the other hand is fabricated differently to seek higher lubricity and better wear resistance along the cylinder wall with lower thermal conductivity to minimize heat loss. The skirt preform is fabricated by wrapping the fiber around a mandrel and subsequently heating and pyrolizing at temperatures far less than the heat treatment temperature of the crown preform resulting in significant time and cost saving. The skirt precursor is machined and then assembled to the crown to complete the piston. The piston skirt, the wrist pin and the cylinder sleeve are also fabricated using similar composition matching techniques to minimize tolerances between these parts. All three of these parts are separately preformed on mandrels utilizing the same wrapping angles to equate wrap strength. Then, the resulting preforms of each are preheated and pyrolized at the same temperatures to almost similar elevated temperature strength and, most importantly, coefficients of thermal expansion. This technique permits the engine designer to reduce the clearance between these parts, thereby minimize blow by, reduce lubrication requirements, and increase engine horsepower.

Abstract translation: 公开了一种包括活塞，腕针和气缸套的内燃机部件组件，全部由匹配的碳 - 碳复合材料构成。 活塞是分为冠和裙部的两件式组件，每个组件分别制造成优化其操作的相应气缸区域中最理想的性能。 通过将纤维和粘合剂放置在压模中并在1500-2000℃的高温下热处理（加热）所得预成型件来制造表冠，以实现高温强度和加工后继续的高热导率 到成品冠部分。 另一方面，裙子是单独的，以不同的方式制造，以便沿着汽缸壁获得更高的润滑性和更好的耐磨性，并具有较低的热导率以最小化热损失。 通过将纤维缠绕在心轴上并随后在远远低于冠状预制件的热处理温度的温度下加热和热解来制造裙部预制件，从而节省了大量的时间和成本。 裙边前体被加工，然后组装到冠部以完成活塞。 活塞裙，腕针和气缸套也使用类似的组合匹配技术制造，以最小化这些部件之间的公差。 这些部件中的所有三个都使用相同的缠绕角度分别在心轴上预成型以等于包裹强度。 然后，将所得到的预成型件在相同温度下预热和热解至几乎相似的升高的温度强度，最重要的是热膨胀系数。 这种技术允许发动机设计者减少这些部件之间的间隙，从而最大限度地减少打击，减少润滑要求并提高发动机功率。

公开(公告)号：US6164261A

公开(公告)日：2000-12-26

申请号：US247669

申请日：1999-02-10

Applicant: Brian K. Kruse

Inventor： Brian K. Kruse

IPC: F02F3/00 ,  F02F3/22 ,  F16J1/04

CPC classification number: F02F3/0023 ,  F02F3/22 ,  F05C2201/021 ,  F05C2201/0448

Abstract: A piston assembly for an internal combustion engine comprising an upper piston member, a piston skirt, and an insert which is fastened together. The insert is tapered and urges the piston skirt towards the upper piston member. The principle use is for light weight pistons having a skirt made of a lighter weight material, however any two piece piston assembly will benefit from this invention.

Abstract translation: 一种用于内燃机的活塞组件，包括上活塞构件，活塞裙和紧固在一起的插入件。 插入件是锥形的并且朝向上活塞件推动活塞裙部。 主要用途是具有由更轻质材料制成的裙部的轻型活塞，然而任何两件活塞组件都将受益于本发明。

公开(公告)号：US6148785A

公开(公告)日：2000-11-21

申请号：US480421

申请日：2000-01-11

Applicant: H. Kevin Rivers ,  Philip O. Ransone ,  G. Burton Northam ,  Francis A. Schwind

Inventor： H. Kevin Rivers ,  Philip O. Ransone ,  G. Burton Northam ,  Francis A. Schwind

IPC: F02F1/00 ,  F02F3/00 ,  F02F75/06

CPC classification number: F02F1/004 ,  F02F3/00 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2203/0808 ,  F05C2251/042

Abstract: An improved reciprocating internal combustion engine has a plurality of engine pistons, which are fabricated from carbon--carbon composite materials, in operative association with an engine cylinder block, or an engine cylinder tube, or an engine cylinder jug, all of which are also fabricated from carbon--carbon composite materials.

Abstract translation: 改进的往复式内燃机具有多个由碳 - 碳复合材料制成的发动机活塞，其与发动机气缸体或发动机气缸管或发动机气缸罐可操作地相关联，所有这些也被制造 来自碳 - 碳复合材料。

公开(公告)号：US6125815A

公开(公告)日：2000-10-03

申请号：US198835

申请日：1998-11-24

Applicant: Franz Durst ,  Miroslaw Weclas

Inventor： Franz Durst ,  Miroslaw Weclas

IPC: F02B21/02 ,  F02B1/12 ,  F02B23/00 ,  F02B23/02 ,  F02B23/08 ,  F02B75/10 ,  F02F1/00 ,  F02F3/00 ,  F02B1/08

CPC classification number: F02B23/08 ,  F02B1/12 ,  F05C2201/0448 ,  F05C2201/046 ,  F05C2203/00 ,  Y02T10/125

Abstract: The invention relates to a method for converting heat into work, a gaseous fuel being compressed and subsequently burnt and a drive means 2 being moved due to volumetric expansion generated as a result of combustion. In order to allow low-pollutant combustion, there is provision, according to the invention, for the compressed gaseous fuel to be burnt in a porous body 8.

Abstract translation: 本发明涉及一种将热量转换成工作的方法，一种被压缩并随后燃烧的气态燃料和由于燃烧而产生的体积膨胀而使驱动装置2移动的方法。 为了允许低污染物燃烧，根据本发明，提供了在多孔体8中燃烧的压缩气体燃料。

公开(公告)号：US6105540A

公开(公告)日：2000-08-22

申请号：US187667

申请日：1998-11-06

Applicant: Karlheinz Bing ,  Thomas Hackh ,  Martin Ruhle

Inventor： Karlheinz Bing ,  Thomas Hackh ,  Martin Ruhle

IPC: F16J1/09 ,  F02F3/18

CPC classification number: F16J1/09 ,  F05C2201/0448

Abstract: A cooled ring carrier assembly for the piston of an internal combustion engine, comprising a metal-sheet cooling duct welded to a ring carrier. The cooling duct is press-fit into the inwardly-pointing surfaces of the ring carrier prior to welding. The angle between the inwardly pointing surface of the ring carrier, to which surface metal-sheet cooling duct is welded, and the metal-sheet cooling duct is smaller than 45.degree.. This allows the cooling duct to be press fit into the ring carrier rather than being shrunk in by temperature differences between the ring carrier and cooling duct.

Abstract translation: 一种用于内燃机的活塞的冷却环形载体组件，包括焊接到环形载体的金属片冷却管道。 在焊接之前，将冷却管道压配合到环形载体的向内指向的表面中。 环状载体向金属片冷却管道焊接的向内指示面与金属片冷却管道之间的角度小于45°。 这允许冷却管道压配合到环形载体中，而不是通过环形载体和冷却管道之间的温差来收缩。

公开(公告)号：US6055726A

公开(公告)日：2000-05-02

申请号：US943907

申请日：1997-10-03

Applicant: Eiichi Ito ,  Akihiko Okubo

Inventor： Eiichi Ito ,  Akihiko Okubo

IPC: F01N13/02 ,  F01P3/02 ,  F02B3/06 ,  F02B23/10 ,  F02B33/04 ,  F02B61/00 ,  F02B75/02 ,  F02B75/12 ,  F02B75/18 ,  F02B75/20 ,  F02B77/02 ,  F02D13/02 ,  F02F1/22 ,  F02F3/12 ,  F02M69/08 ,  B23P15/00

CPC classification number: F02D13/0284 ,  F01N13/009 ,  F01P3/02 ,  F02B33/04 ,  F02B61/00 ,  F02B75/20 ,  F02B77/02 ,  F02F1/22 ,  F02F3/12 ,  F02M69/08 ,  F02B2075/025 ,  F02B2075/125 ,  F02B2075/1812 ,  F02B23/101 ,  F02B3/06 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2201/046 ,  F05C2251/042 ,  Y02T10/18 ,  Y10T29/49249 ,  Y10T29/49986

Abstract: A water-cooled, two-stroke crankcase compression internal combustion engine for powering a motor vehicle. The engine includes a piston, piston rings, and cylinder bore arrangement that are constructed to inhibit piston ring sticking by cooling the piston ring gaps by holding them against rotation and spraying fuel from a fuel injector toward the gap for cooling it. Overheating of the small end of the connecting rod is inhibited by surface treating portions of the piston to render them harder and less heat conductive. Scuffing of the piston, piston rings, and cylinder bore are reduced by surface treating the area of the head of the piston around the ring grooves so as to trap and retain lubricant. The surface treatment includes the steps of utilizing an acid wash to dissolve and remove silicon particles and subsequently alumitc treating the washed area.

Abstract translation: 一种用于为机动车辆供电的水冷式二冲程曲轴箱压缩内燃机。 发动机包括活塞，活塞环和气缸孔装置，其被构造成通过将活塞环间隙保持抵抗旋转而喷射燃料，并将燃料从燃料喷射器喷射到间隙以冷却活塞环来抑制活塞环的粘附。 通过表面处理活塞的部分来抑制连杆的小端的过热，使得它们更硬并且导热更少。 活塞，活塞环和气缸孔的磨损通过在环槽周围处理活塞头部的区域来减少，以便捕获和保持润滑剂。 表面处理包括使用酸洗来溶解和除去硅颗粒并随后对洗涤区域进行铝处理的步骤。

公开(公告)号：US6044819A

公开(公告)日：2000-04-04

申请号：US808290

申请日：1997-02-28

Applicant: H. Kevin Rivers ,  Philip O. Ransone ,  G. Burton Northam ,  Francis A. Schwind

Inventor： H. Kevin Rivers ,  Philip O. Ransone ,  G. Burton Northam ,  Francis A. Schwind

IPC: F02F1/00 ,  F02F3/00 ,  F02F75/06

CPC classification number: F02F1/004 ,  F02F3/00 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042

Abstract: An improved reciprocating internal combustion engine has a plurality of engine pistons, which are fabricated from carbon-carbon composite materials, in operative association with an engine cylinder block, or an engine cylinder tube, or an engine cylinder jug, all of which are also fabricated from carbon-carbon composite materials.

公开(公告)号：US6026777A

公开(公告)日：2000-02-22

申请号：US234750

申请日：1999-01-21

Applicant: Peter Kemnitz ,  Michael Ullrich

Inventor： Peter Kemnitz ,  Michael Ullrich

IPC: F01P3/10 ,  F02B23/06 ,  F02F3/00 ,  F02F3/22 ,  F02F3/26 ,  F16J1/01

CPC classification number: F02F3/0023 ,  F02B23/0696 ,  F02F3/22 ,  F02F2200/04 ,  F05C2201/0448 ,  Y02T10/125

Abstract: A piston with a cooling channel having a basic piston barrel made from forged steel and a box-shaped shaft, bosses and boss supports and connecting walls between the boss supports as well as a combustion trough. The piston increases the rigidity of the ring part. To accomplish this, the piston has a wall extending all around above the boss bores. A structural component is welded in between the wall and the piston head and limits the cooling channel. This design increases the rigidity of the ring part in pistons.

Abstract translation: 具有冷却通道的活塞具有由锻造钢制成的基本活塞筒和箱形轴，凸台和凸台支撑件以及凸台支撑件之间的连接壁以及燃烧槽。 活塞增加了环部的刚度。 为了实现这一点，活塞具有围绕凸起孔周围延伸的壁。 结构部件焊接在壁和活塞头之间，并限制冷却通道。 这种设计增加了活塞环部分的刚性。

公开(公告)号：US5979298A

公开(公告)日：1999-11-09

申请号：US040716

申请日：1998-03-18

Applicant: John P. Whitacre

Inventor： John P. Whitacre

IPC: B22D19/00 ,  F02B23/06 ,  F02F3/22 ,  F16J9/22 ,  F16J1/04

CPC classification number: B22D19/0027 ,  F02B23/0672 ,  F02F3/22 ,  F16J9/22 ,  F05C2201/021 ,  F05C2201/0448 ,  Y02T10/125 ,  Y10T29/49261 ,  Y10T29/49263

Abstract: A cast piston having a metal insert that includes a cooling gallery and defines a piston ring groove. The piston insert includes an annular base having an annular cavity formed therein and an annular ring which extends radially outward from the base. A cast piston is fabricated by positioning the piston insert in a piston mold and casting a piston. After the piston is cast, the piston groove ring is machined in a portion of the annular ring and at least one channel is formed between the annular cavity and a bottom portion of the piston. In use, a cooling fluid is directed through the at least one channel and into the annular cavity.

Abstract translation: 具有金属插入件的铸造活塞，其包括冷却槽并且限定活塞环槽。 活塞插入件包括其中形成有环形空腔的环形基座和从基座径向向外延伸的环形环。 通过将活塞插入件定位在活塞模具中并铸造活塞来制造铸造活塞。 在活塞被浇铸之后，在环形环的一部分中加工活塞槽环，并且在环形空腔和活塞的底部之间形成至少一个通道。 在使用中，冷却流体被引导通过至少一个通道并进入环形空腔。