会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明授权
    • Combination continuous woven-fiber and discontinuous ceramic-fiber structure
    • 组合连续编织纤维和不连续陶瓷纤维结构
    • US06472059B2
    • 2002-10-29
    • US09892348
    • 2001-06-27
    • Thomas Edward StrasserWilliam James MarshRobert Alan Schwindler
    • Thomas Edward StrasserWilliam James MarshRobert Alan Schwindler
    • B32B1712
    • C04B35/80Y10T428/249928Y10T428/24994Y10T428/249945Y10T428/2904Y10T428/2907Y10T428/2915Y10T428/2916Y10T428/2933Y10T428/298
    • A method of fabricating a ceramic structure as well as a pre-ceramic preimpregnated composite material incorporating a continuous woven fiber and a discontinuous fiber pre-ceramic matrix for subsequent curing and component construction. The method includes preparation of a mixture of discontinuous fibers, fillers, and a pre-ceramic precursor resin where the precursor resin is present in a quantity sufficient to substantially saturate subsequently adjacent woven fiber lengths, and thereafter introducing the mixture to a situs between an upper length of woven fiber and a lower length of woven fiber in alignment with each other while effectuating linear movement of these woven fiber lengths and moving the lengths toward each other for compression and retention in a sandwich configuration to thereby fabricate a pre-ceramic preimpregnated composite material. The material is cut to size in accord with the configuration of a part to be manufactured, formed into a green-state structure, and cured. Finished-product characteristics show a substantially uniform distribution of discontinuous fibers and fillers within the ceramic resin matrix to thereby provide a substantially internally stress-free end product component.
    • 一种制造陶瓷结构的方法以及掺有连续机织纤维和不连续纤维预陶瓷基体的预陶瓷预浸复合材料,用于随后的固化和组分构造。 该方法包括制备不连续纤维,填料和预陶瓷前体树脂的混合物,其中前体树脂的存在量足以使随后相邻的编织纤维长度基本上饱和,然后将混合物引入到上部 编织纤维的长度和织物纤维的长度彼此对准,同时实现这些编织纤维长度的线性运动并将长度相互朝向彼此移动以压缩和保持在夹层结构中,从而制造预陶瓷预浸渍的复合材料 。 根据要制造的部件的形状,将材料切割成尺寸,形成绿色状态的结构,并固化。 成品特性显示了陶瓷树脂基质内的不连续纤维和填料的基本上均匀的分布,从而提供基本上无内应力的最终产品组分。
    • 10. 发明授权
    • Fiber reinforced ceramic matrix composite internal combustion engine intake/exhaust valves
    • 纤维增强陶瓷基体复合内燃机进气/排气阀
    • US06363902B1
    • 2002-04-02
    • US09676244
    • 2000-09-29
    • Thomas Edward StrasserSteven Donald Atmur
    • Thomas Edward StrasserSteven Donald Atmur
    • F02N300
    • F01L3/02
    • A fracture-resistant, thermally stable intake or exhaust valve for an internal combustion (IC) engine. The valve has a stem portion and a head portion, both of which are formed of fiber reinforced ceramic matrix composite (FRCMC) material. This FRCMC material generally includes a polymer-derived ceramic resin in its ceramic state, fibers, and filler materials. Employing FRCMC material to form the valve is advantageous as FRCMC material is highly temperature resistant and temperature stable, thereby allowing for increased engine operating temperatures. FRCMC material is also ductile, thus making the valve fracture resistant. The FRCMC material is also flaw-insensitive in that any flaw within the structure of the valve will not result in cracking and failure. In addition, FRCMC valves are considerably lighter than the existing metal valves. This provides an opportunity to reduce the weight of the overall valve train, thereby increasing engine performance. The addition of certain filler materials allows the FRCMC material to be tailored to exhibit a desired degree of harness and/or a desired coefficient of friction. Increasing the hardness of the head of the valve allows it to better withstand the violent environment of the engine cylinder, and lowering the coefficient of friction facilitates the valve movement within the engine.
    • 用于内燃(IC)发动机的耐断裂,热稳定的进气或排气阀。 阀具有杆部和头部,两者均由纤维增强陶瓷基复合材料(FRCMC)材料形成。 该FRCMC材料通常包括其陶瓷状态的聚合物衍生的陶瓷树脂,纤维和填料材料。 使用FRCMC材料形成阀是有利的,因为FRCMC材料具有高温度和温度稳定性,从而允许增加发动机工作温度。 FRCMC材料也是延性,从而使阀门断裂。 因为FRCMC材料也不具有缺陷性,因为阀门结构内的任何缺陷都不会导致开裂和失效。 此外,FRCMC阀门比现有的金属阀门要轻得多。 这提供了减轻整个气门机构的重量从而增加发动机性能的机会。 添加某些填充材料允许FRCMC材料被定制以显示所需程度的线束和/或所需的摩擦系数。 提高阀门头部的硬度使其能够更好地承受发动机气缸的剧烈环境,降低摩擦系数有利于发动机内的阀门运动。