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公开(公告)号:US4679493A
公开(公告)日:1987-07-14
申请号:US727336
申请日:1985-04-25
申请人: Robert Munro , Roger A. Day
发明人: Robert Munro , Roger A. Day
CPC分类号: B22D19/0027 , B22D19/14 , F02B23/0675 , F02F3/08 , F02F7/0085 , F05C2201/021 , F05C2201/0448 , F05C2203/0808 , F05C2253/16 , Y02T10/125
摘要: A reinforced piston is provided for an internal combustion engine. The uppermost piston ring groove is as close as possible to the crown of the piston. At least the lower surface of the groove is defined by an en-cast insert and overlying this is a portion of the crown reinforced by fibres, thus allowing this portion to be thin and the spacing between the ring groove and the upper surface of the crown to be minimized. The reinforced crown portion also holds the insert against axial separating movement. The crown can be provided with a combustion bowl whose entrance is reinforced by the fibres.
摘要翻译: 为内燃机提供增强活塞。 最上面的活塞环槽尽可能靠近活塞的顶部。 凹槽的至少下表面由铸造镶嵌件限定,并且其上面是由纤维增强的冠部的一部分,从而允许该部分变薄,并且环槽与冠的上表面之间的间隔 要最小化。 加强冠部还保持插入件抵抗轴向分离运动。 冠部可以设有燃烧碗,其入口被纤维加强。
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公开(公告)号:US4586553A
公开(公告)日:1986-05-06
申请号:US507568
申请日:1983-06-24
申请人: Gordon L. Allen , Robert Munro , Roger A. Day
发明人: Gordon L. Allen , Robert Munro , Roger A. Day
CPC分类号: B22C9/064 , B22D19/0027 , B22D19/14 , F02F3/003 , F05C2201/021 , F05C2253/16
摘要: A process is provided for pressure casting a piston with a crown insert and a cavity. The process comprises casting crown down in a mould and, before casting, placing in the mould means for forming a crown insert and a soluble salt core forming a cavity in the piston. The salt core is held by the crown insert means to position the salt core in the mould so preventing the salt core moving during pressure casting.
摘要翻译: 提供了一种用于对具有冠部插入件和空腔的活塞进行压力铸造的过程。 该方法包括在模具中浇铸拱顶,并且在铸造之前将其放置在用于形成冠状插入物的模具装置和在活塞中形成空腔的可溶性盐芯。 盐芯由冠部插入装置保持,以将盐芯定位在模具中,以防止在压铸过程中盐芯移动。
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公开(公告)号:US4708104A
公开(公告)日:1987-11-24
申请号:US22550
申请日:1987-03-03
申请人: Roger A. Day , Norman Tommis , Andrew R. Baker
发明人: Roger A. Day , Norman Tommis , Andrew R. Baker
IPC分类号: B22D19/08 , B22D19/00 , B22D19/14 , C22C47/08 , F02B23/06 , F02F3/00 , F02F7/00 , F16J1/01 , B23P15/10
CPC分类号: B22D19/14 , B22D19/0027 , C22C47/08 , F02B23/0636 , F02F3/00 , F02F7/0087 , B22F2998/00 , F05C2201/021 , F05C2201/028 , F05C2201/0448 , F05C2203/0817 , F05C2203/0843 , F05C2253/16 , Y02T10/125 , Y10T29/49259
摘要: A piston is manufactured by incorporating a reinforcement which is formed at least in part by a fibre material and which is so non-uniform as to provide differing characteristics in the cast piston in predetermined differing regions of the piston. For example, the volumetric density of the fibres may be different in one region of the reinforcement as compared with another region in order to produce a more resistant region in the cast piston. Additionally or alternatively, the reinforcement may hold finely divided materials which combine with the piston material during casting to give improved properties. Examples of this are the incorporation of particles of silicon, silicon carbide or silicon nitride to improve wear and/or the incorporation of molybdenum disulphide and tungsten disulphide or graphite to improve lubrication.
摘要翻译: 活塞通过结合至少部分地由纤维材料形成并且是非均匀的增强件来制造,以在活塞的预定的不同区域中在铸造活塞中提供不同的特性。 例如,与另一区域相比,纤维的体积密度可以在加强件的一个区域中是不同的,以便在铸造活塞中产生更多的阻力区域。 附加地或替代地,加强件可以保持在铸造期间与活塞材料组合的细碎材料以提供改进的性能。 其实例是引入硅,碳化硅或氮化硅颗粒以改善二硫化钼和二硫化钨或石墨的磨损和/或引入以改善润滑。
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公开(公告)号:US4880189A
公开(公告)日:1989-11-14
申请号:US190017
申请日:1988-09-04
申请人: Roger A. Day
发明人: Roger A. Day
摘要: A shutter arrangement for closing an aperture formed in the fixed leading edge of an aircraft wing when a track supported slat moves from a stowed, cruise configuration in which it lies adjacent the fixed wing portion to a high light configuration in which it is spaced from the wing to define a slot. The aperture, which exist to accommodate the slat to track attachment `knuckles`, may induce undesirable flow disturbance in the slot formed between the slat and the fixed leading edge. The present invention provides a hinged retractable shutter for closing off the aperture when the slat is deployed. In the preferred arrangement the shutter is of multi-panelled hinged configuration and, in one described arrangement is of one-piece moulded composite rubber construction.
摘要翻译: 一种快门装置,用于当轨道支撑的板条从收起的巡航结构移动时,关闭形成在飞行器机翼的固定前缘中的孔,其中它与其相邻的固定翼部分相对于高光配置,其中它与 翼定义一个插槽。 存在以适应板条以跟踪附件“转向节”的孔可能在形成在板条和固定前缘之间的槽中引起不期望的流动扰动。 本发明提供了一种铰接式可伸缩快门,用于在板条展开时封闭孔。 在优选的布置中,闸门具有多板铰链构造,并且在一个所述的布置中是单件模制复合橡胶结构。
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