公开(公告)号：US20030037753A1

公开(公告)日：2003-02-27

申请号：US10239462

申请日：2002-09-23

发明人： Paul Anthony McLachlan

IPC分类号： F02B075/02 ,  F01P001/04

CPC分类号： F01C21/06 ,  F01C9/002

摘要： A pivoted piston for an internal combustion engine. The piston has a pivot pin and an arcuate first sealing surface (12) which describes a circumferential path about the pivot pin which forms a removable and replaceable skirt to the piston. The piston also includes a second arcuate sealing surface which also describes a circumferential path about the pivot pin and which is connected to the first arcuate sealing surface (12) by a piston floor (21). The second arcuate sealing surface is composed of at least two arcuate sealing components (24) which are located on a bed (20) with the components (24) being located on the bed (20) so they will have limited transverse movement on the bed (20). The components (24) have mating faces which restrict the path of combustion gases between the mating faces. The piston further includes side seals which are located in grooves (63) in the side of the piston. A restraining pin (60) assists in locating the seals in the seal grooves (63) and also closes a pressure escape path for the combustion gases. The piston further includes means to allow liquid coolant to pass through the pivot shaft, through liquid cooling galleries in the piston and out of the pivot shaft.

摘要翻译： 用于内燃机的枢转活塞。 活塞具有枢转销和弓形的第一密封表面（12），其描述围绕枢转销的周向路径，其形成可移动和可更换的裙部到活塞。 活塞还包括第二弧形密封表面，其也描述了围绕枢转销的圆周路径，并且其通过活塞底板（21）连接到第一弓形密封表面（12）。 第二弧形密封表面由位于床（20）上的至少两个弓形密封部件（24）组成，其中部件（24）位于床（20）上，因此它们将在床上具有有限的横向运动 （20）。 组件（24）具有限制配合面之间的燃烧气体路径的配合面。 活塞还包括位于活塞侧面上的槽（63）中的侧密封件。 限制销（60）有助于将密封件定位在密封槽（63）中，并且还封闭用于燃烧气体的压力逸出路径。 活塞还包括允许液体冷却剂通过枢轴通过活塞中的液体冷却库并离开枢轴的装置。

公开(公告)号：US20010037775A1

公开(公告)日：2001-11-08

申请号：US09756202

申请日：2001-01-09

发明人： Nobuo Suzuki ,  Mitsuharu Tanaka ,  Hiroyuki Yoshida

IPC分类号： F01P001/04

CPC分类号： F02B61/045 ,  F01M11/02 ,  F01M2001/066 ,  F01M2011/026 ,  F02B75/20 ,  F02B2075/027 ,  F02B2075/1808

摘要： A piston is reliably cooled from its backside by using an oil for lubricating portions around a crank pin of a crankshaft. An engine including a crankshaft is provided with lubricating oil bores to supply an oil from journals of the crankshaft to an outer peripheral surface of a crank pin. A larger end of the connecting rod is provided with a pair of opposed axial oil grooves in its outer peripheral surface, and with an annular oil passage connected to the axial groove in its side thrust face. A pair of cooling oil injection grooves each have one end connected to the annular oil passage and the other end directed to a piston while they are provided proximate to each other.

摘要翻译： 通过使用用于在曲轴的曲柄销周围润滑部分的油，从其后侧可靠地冷却活塞。 包括曲轴的发动机设置有润滑油孔，以从曲轴的轴颈向曲柄销的外周表面供油。 连杆的较大端部在其外周面上设置有一对相对的轴向油槽，并且在其侧推面中与轴向槽连接的环形油路。 一对冷却油注入槽各自具有连接到环形油通道的一端，另一端指向活塞，同时它们彼此靠近地设置。

公开(公告)号：US20040040520A1

公开(公告)日：2004-03-04

申请号：US10653534

申请日：2003-09-02

发明人： Christophe Bontaz ,  Denis Clement

IPC分类号： F01P001/04

CPC分类号： F01P3/08

摘要： A nozzle in accordance with the invention includes a nozzle body with a penetrating portion conformed to engage axially in a bore in the engine and to receive a cooling fluid arriving via said bore. An outlet structure includes two outlet tubes, each outlet tube being appropriately curved to create two jets of cooling fluid and to direct them toward respective different cooling areas of an engine piston.

摘要翻译： 根据本发明的喷嘴包括喷嘴体，其具有贯穿部分，该穿透部分沿轴向接合在发动机的孔中并且接收经由所述孔到达的冷却流体。 出口结构包括两个出口管，每个出口管适当地弯曲以产生两个冷却流体射流并将它们引向发动机活塞的相应不同的冷却区域。

公开(公告)号：US20040035374A1

公开(公告)日：2004-02-26

申请号：US10644314

申请日：2003-08-20

申请人： Scania CV AB (publ)

发明人： Jens Svensson

IPC分类号： F01P001/04

CPC分类号： F01P3/08 ,  Y10T29/49433

摘要： An arrangement for cooling a piston (2) in a combustion engine (1) of piston and cylinder type with a nozzle (3) installed in a crankcase in order to spray cooling oil (7) towards the underside of the piston (2) incorporates devices (4, 5, 6) for supplying oil to the nozzle (3). The outlet end of the nozzle (3) exhibits an elongate curved and preferably substantially U-shaped or C-shaped outlet aperture cross-section (12, 12null).

摘要翻译： 用于冷却活塞和气缸型燃烧发动机（1）中的活塞（2）的装置，其中安装在曲轴箱中的喷嘴（3）以朝向活塞（2）的下侧喷射冷却油（7） 用于向喷嘴（3）供油的装置（4,5,6）。 喷嘴（3）的出口端表现出细长的弯曲且优选地大致U形或C形出口孔横截面（12,12'）。

公开(公告)号：US20030041815A1

公开(公告)日：2003-03-06

申请号：US10226169

申请日：2002-08-23

发明人： Hiroyuki Kawakubo ,  Tetsuya Nakayasu

IPC分类号： F01P001/04

CPC分类号： F01P3/08 ,  F01M1/08 ,  F01M11/02 ,  F01M2001/086 ,  F01M2011/026 ,  F02B61/02 ,  F02B75/20 ,  F02B2075/1816 ,  F02B2275/18

摘要： A piston cooling structure for a multicylinder engine having oil jets for ejecting oil toward pistons. The oil jets are mounted in each of a plurality of journal walls except one journal wall. The piston cooling structure is able to supply oil to a cylinder head in a position closer to a central region along the axis of the crankshaft while avoiding a complex oil passage shape. An oil passage for guiding oil to a cylinder head is defined in the one of the journal walls without an oil jet, and this one journal wall is disposed between a pair of adjacent cylinder bores. Oil jets are mounted in each of the other journal walls. A crankshaft of the engine is rotatably supported by the journal walls.

摘要翻译： 一种用于具有用于向活塞喷射油的喷油嘴的多缸发动机的活塞冷却结构。 油喷射器安装在除了一个轴颈壁之外的多个轴颈壁的每一个中。 活塞冷却结构能够沿着曲轴的轴线更靠近中心区域的位置向气缸盖供应油，同时避免复杂的油通道形状。 用于将油引导到气缸盖的油通道被限定在轴颈壁之一中，没有油喷射，并且该一个轴颈壁设置在一对相邻的气缸孔之间。 油喷射器安装在每个其他日志墙上。 发动机的曲轴由轴颈壁可旋转地支撑。

公开(公告)号：US20030005893A1

公开(公告)日：2003-01-09

申请号：US10187559

申请日：2002-07-02

发明人： Christophe Bontaz

IPC分类号： F01P001/04

CPC分类号： F01P3/08 ,  Y10T137/2663

摘要： A cooling nozzle in accordance with the invention cools the piston of an internal combustion engine. The nozzle includes a nozzle body with a penetrating part shaped to engage in a bore of the engine and to receive a cooling fluid. The nozzle includes an internal valve consisting of a piston guided and sliding in a guide bore of the nozzle body. The piston includes a head oriented in the upstream direction and bearing against an annular seat. The piston is urged towards the annular seat by a compression coil spring. The cooling nozzle for high-pressure engine cooling circuits and incorporating an internal valve obtained therefore has greater durability.

摘要翻译： 根据本发明的冷却喷嘴冷却内燃机的活塞。 喷嘴包括喷嘴体，其具有成形为接合在发动机的孔中并且接收冷却流体的穿透部分。 喷嘴包括由在喷嘴体的引导孔中引导和滑动的活塞组成的内部阀。 活塞包括沿上游方向定向并且抵靠环形座的头部。 活塞被压缩螺旋弹簧推向环形座。 因此，用于高压发动机冷却回路并结合有内部阀的冷却喷嘴具有更大的耐久性。

公开(公告)号：US20030070632A1

公开(公告)日：2003-04-17

申请号：US10019372

申请日：2001-12-26

发明人： Claudio De Bei

IPC分类号： F02B057/00 ,  F02F001/10 ,  F01P001/04

CPC分类号： F02B57/08 ,  F01B13/068 ,  F02B1/04 ,  F02B2075/027 ,  F02B2075/1816

摘要： A spark-ignition rotary internal-combustion engine, having a plurality of pistons (7) which perform a reciprocating motion inside cylinders (6) arranged so as to be equally angularly spaced on a same circumference, the cylinders (6) being formed in a rotating body or rotor (2) which rotates coaxially inside a fixed body or stator (1), in which the inlet duct (9) for the air-fuel mix, the burnt gas exhaust duct (8) and the spark-plug recess (10) are provided.

摘要翻译： 一种火花点火旋转内燃机，具有多个活塞（7），所述多个活塞（7）在圆筒（6）内进行往复运动，所述活塞（6）布置成在相同的圆周上具有相同的角度间隔，所述气缸（6）形成为 在固定体或定子（1）内同轴旋转的旋转体或转子（2），其中用于空气燃料混合的入口管道（9），燃烧气体排出管道（8）和火花塞凹部 10）。

公开(公告)号：US20010042526A1

公开(公告)日：2001-11-22

申请号：US09861162

申请日：2001-05-17

申请人： MAN Nutzfahrzeuge AG

发明人： Heribert Moller ,  Josef Winter

IPC分类号： F01P001/04

CPC分类号： F01P3/08

摘要： A piston cooling system is provided for an internal combustion engine having a crankshaft, a plurality of pistons connected to the crankcase shaft, and a crankcase housing partitioned by a plurality of partition walls into a plurality of partitioned sections, and a pressurized lubrication fluid circuit integrated with the crankcase housing for the circulation of lubricant therethrough. The piston cooling system includes a plurality of bores each formed in a respective partition wall and communicated with the pressurized lubricant fluid circuit. The piston cooling system also includes a plurality of spray nozzles, each spray nozzle being mounted in a longitudinal bore formed in a respective partition wall. Each spray nozzle is oriented for spraying lubricant onto the underside of a piston. Each spray nozzle is formed by a lathe process.

摘要翻译： 本发明提供了一种内燃机的活塞冷却系统，该内燃机具有曲轴，与该曲轴箱轴连接的多个活塞以及由多个隔壁分隔成多个分隔部的曲轴箱壳体， 具有用于使润滑剂循环通过的曲轴箱壳体。 活塞冷却系统包括多个孔，每个孔形成在相应的分隔壁中并与加压润滑剂流体回路连通。 活塞冷却系统还包括多个喷嘴，每个喷嘴安装在形成在相应分隔壁中的纵向孔中。 每个喷嘴被定向以将润滑剂喷射到活塞的下侧上。 每个喷嘴由车床加工形成。

公开(公告)号：US20040250779A1

公开(公告)日：2004-12-16

申请号：US10748904

申请日：2003-12-30

发明人： Rainer Scharp

IPC分类号： F01P001/04

CPC分类号： F02F3/22 ,  F02F2003/0007

摘要： A one-piece piston for an internal combustion engine, having a ring-shaped cooling channel arranged in the outer region of the piston head, is proposed, which is closed off by a ring-shaped cooling channel cover structured towards the side of the pin bosses as a support element. This cooling channel cover comprises at least two arc-shaped cover elements the outer edge of which supports the pin-boss-side face of the ring wall.

摘要翻译： 提出了一种用于内燃机的一体式活塞，其具有布置在活塞头的外部区域中的环形冷却通道，其被形成为朝向销的侧面的环形冷却通道盖封闭 老板作为支撑元素。 该冷却通道盖包括至少两个弧形盖元件，其外边缘支撑环壁的销凸台侧面。

公开(公告)号：US20040055545A1

公开(公告)日：2004-03-25

申请号：US10252616

申请日：2002-09-23

发明人： Steven R. Baldwin

IPC分类号： F01P001/04

CPC分类号： F01P3/08 ,  F01M1/08 ,  F01M2011/005 ,  F01M2011/026 ,  F01P11/04

摘要： In a preferred embodiment, a windage tray assembly is mounted to crankshaft bearing caps which connect with oil passages in the windage tray. The passages carry the oil through nozzles directed toward the interior of associated pistons. The arrangement utilizes the windage tray and bearing caps as carriers for piston cooling oil obtained from the bearing caps, which are already supplied with oil for lubricating the bearings. Thus, modifications of an engine design to install a piston cooling system are limited to redesign of the windage tray to a sandwich-like assembly and modification of the bearing caps to conduct oil from the bearings to the windage tray passages. To limit oil pumping energy, oil distribution holes in the bearing caps connect intermittently with crankshaft journal feed passages so the oil is distributed in individually timed streams or sprays directed toward the pistons for a short interval once every revolution of the engine crankshaft.