PISTON
    2.
    发明公开
    PISTON 审中-公开
    活塞

    公开(公告)号:EP3212917A1

    公开(公告)日:2017-09-06

    申请号:EP15795079.1

    申请日:2015-10-30

    Abstract: A ferrous piston for gasoline powered engines having dimensions which achieve reduced mass and improved performance is provided. The piston crown has a thickness of less than 4 mm and includes valve pockets with an axial clearance between the valve pockets and an uppermost ring groove of less than 1.5 mm. The pin bosses have an axial thickness of less than 3.7% of a bore diameter, which is the largest outer diameter of the piston, measured between a pin bore and the crown at 1 mm from an inner face forming the pin bore. Each pin boss has a radial thickness of less than 3% of the bore diameter measured between the pin bore and a lower end of the pin boss. An undercrown surface presents a projected area of less than 45% of a total piston bore area, wherein the total piston bore area is &pgr;BD2/4, BD being the bore diameter.

    Abstract translation: 提供了一种用于汽油动力发动机的含铁活塞,其具有实现减小的质量和改进的性能的尺寸。 活塞顶部具有小于4mm的厚度并且包括在阀穴与最上面的环槽之间具有小于1.5mm的轴向间隙的阀穴。 销轴套的轴向厚度小于内孔直径的3.7%,该内径是活塞的最大外径,在距离形成销孔的内表面1mm处在销孔和顶部之间测量。 每个销毂的径向厚度小于在销孔和销毂下端之间测得的孔径的3%。 一个欠成形表面的投影面积小于总活塞孔面积的45%,其中总活塞孔面积为BD2 / 4,BD为孔径。

    Oil channel for engine
    5.
    发明公开
    Oil channel for engine 审中-公开
    ÖlkanalfürMotor

    公开(公告)号:EP2942499A1

    公开(公告)日:2015-11-11

    申请号:EP14001237.8

    申请日:2014-04-04

    Inventor: Stellwagen, Karl

    Abstract: An engine block (104, 105) is disclosed. The engine block (104, 105) includes a cylinder (106, 107) and a piston (108) slidably received within the cylinder (106, 107). The engine block (104, 105) also includes a liner (128, 129) between the cylinder (106, 107) and the piston (108). The engine block (104, 105) further includes a groove (134, 135) provided about and in communication with the liner (128, 129) and the cylinder (106, 107). The engine block (104, 105) includes at least two oil nozzles (124, 126) arranged spaced apart from each other. The oil nozzles (124, 126) are configured to spray oil on the piston (108). The engine block (104, 105) also includes an oil channel (118). The oil channel (118) is configured to supply oil to at least one of the at least two oil nozzles (124, 126) via the groove (134, 135).

    Abstract translation: 公开了一种发动机缸体(104,105)。 发动机缸体(104,105)包括可滑动地容纳在气缸(106,107)内的气缸(106,107)和活塞(108)。 发动机缸体(104,105)还包括在气缸(106,107)和活塞(108)之间的衬套(128,129)。 发动机缸体(104,105)还包括围绕衬套(128,129)和气缸(106,107)设置并与其连通的凹槽(134,135)。 发动机缸体(104,105)包括彼此间隔布置的至少两个油喷嘴(124,126)。 油喷嘴(124,126)构造成将油喷射到活塞(108)上。 发动机缸体(104,105)还包括油通道(118)。 油通道(118)构造成经由凹槽(134,135)向至少两个油喷嘴(124,126)中的至少一个供油。

    DISPOSITIF DE COMMANDE DE L'ALIMENTATION D'UN SYSTEME AVEC UN FLUIDE.
    7.
    发明授权
    DISPOSITIF DE COMMANDE DE L'ALIMENTATION D'UN SYSTEME AVEC UN FLUIDE. 有权
    一种用于控制系统的供液

    公开(公告)号:EP2326811B1

    公开(公告)日:2012-05-09

    申请号:EP09782780.2

    申请日:2009-09-08

    Applicant: Bontaz Centre

    Abstract: The invention relates to a system for cooling the pistons of an internal combustion engine, comprising an oil pump driven by the engine, nozzles for spraying oil on the pistons, and a control device (2) provided between the oil pump and the nozzles, the control device including a valve (14) arranged between an oil inlet duct (8) connected to the pressurised oil pump and a nozzle supply duct (10), said valve (14) enabling the oil flow from the pump to the nozzles when the oil pressure is at least equal to a threshold pressure, wherein said device further comprises an electrovalve (22) capable of closing the valve (14) while enabling the pressurised oil to contact the plug (16) in the closing direction of the valve (14).

    Ölversorgungseinrichtung zum Schmieren eines Zylinders und/oder zum Kühlen eines Kolben
    8.
    发明公开
    Ölversorgungseinrichtung zum Schmieren eines Zylinders und/oder zum Kühlen eines Kolben 有权
    油供给装置,用于润滑汽缸和/或用于冷却活塞

    公开(公告)号:EP2213851A3

    公开(公告)日:2011-04-27

    申请号:EP09012608.7

    申请日:2009-10-06

    CPC classification number: F01M1/08 F01P3/08

    Abstract: Die Erfindung betrifft einen Verbrennungsmotor mit einer Ölversorgungseinrichtung (9) zum Schmieren eines Zylinders (2) und/oder zum Kühlen eines Kolbens (3), wobei die Ölversorgungseinrichtung (9) so ausgebildet ist, dass eine Schmierung des Zylinders (2) ständig erfolgt, während die Kühlung des Kolbens (3) zuschaltbar ist, und/oder dass die Schmierung des Zylinders bereits bei einem geringeren Öldruck erfolgt, bei welchem noch keine Kühlung des Kolbens stattfindet.

    NOZZLE, LUBRICATION SYSTEM AND INTERNAL COMBUSTION ENGINE COMPRISING SUCH A NOZZLE OR SUCH A SYSTEM
    10.
    发明公开
    NOZZLE, LUBRICATION SYSTEM AND INTERNAL COMBUSTION ENGINE COMPRISING SUCH A NOZZLE OR SUCH A SYSTEM 有权
    喷嘴,润滑和燃烧引擎,这种喷嘴或该系统包括

    公开(公告)号:EP2097172A1

    公开(公告)日:2009-09-09

    申请号:EP06849508.4

    申请日:2006-12-27

    Applicant: Renault Trucks

    Inventor: AIXALA, Luc

    CPC classification number: F01M1/08 F01M1/16 F01M2001/086 F01P3/08

    Abstract: This nozzle is (15) adapted to direct a jet (J15) of oil under pressure on internal combustion engine. It has a variable outlet section, and it is provided with mechanical means (154, 155) adapted to control its outlet section on the basis of the pressure (P8) of a fluid under pressure provided to these mechanical means, independently of the oil going through (F6) the outlet (152) of the nozzle. In the lubrication system an auxiliary line is provided with first proportional means controlling oil flow (F6) toward a nozzle (15). A control line connects a main line or the auxiliary line, upstream of the first proportional means, to mechanical means (154, 155) adapted to control the outlet section of the nozzle (15). The control line is provided with second proportional means controlling the pressure (P8) of oil delivered (F8) to said mechanical means (154, 155). The nozzle can be used as a piston cooling nozzle to direct oil toward a piston of an internal combustion engine.

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