Method of mounting a ceramic valve guide assembly
    1.
    发明授权
    Method of mounting a ceramic valve guide assembly 失效
    安装陶瓷阀导向组件的方法

    公开(公告)号:US5435280A

    公开(公告)日:1995-07-25

    申请号:US247167

    申请日:1994-05-20

    IPC分类号: F01L3/08 F02F1/24

    摘要: In order to achieve great engine efficiency, heat, normally dissipated through the cooling system, is directed through the exhaust passage to increase the turbocharger speed. Ceramic valve guides capable of withstanding high temperature ranges are being used for increased engine efficiency. Unfortunately, the resultant interference fit achieved through conventional shrink fitting the ceramic valve guide into the cylinder head will be lost once the engine is at operating temperatures due to the differential thermal expansion between the ceramic and the cylinder head material. The present invention provides a simple means for ensuring that the ceramic valve guide will be mounted within a cylinder head in a way that ensures that the ceramic valve guide is held in place within the cylinder head throughout the operating cycles of the engine. This is accomplished by utilizing a securing assembly which circumferentially surrounds the ceramic valve guide. The securing assembly includes a lower and an upper securing element and a spring disposed between the lower and the upper securing element. When installed in the engine, a valve spring places an axial load on the securing element which compresses the spring and forces the lower and the upper securing element into radial engagement with the ceramic sleeve and the cylinder head. Thereby, forcibly connecting the ceramic valve guide and the cylinder head.

    摘要翻译: 为了获得很好的发动机效率,通常通过冷却系统耗散的热被引导通过排气通道以增加涡轮增压器的速度。 能够承受高温范围的陶瓷阀导向器用于提高发动机效率。 不幸的是,由于陶瓷和气缸盖材料之间的热膨胀差异,发动机处于工作温度时,通过常规的收缩将陶瓷阀导向件装入气缸盖中而产生的干涉配合将会消失。 本发明提供了一种简单的方法,用于确保陶瓷阀引导件将被安装在气缸盖中,以确保在发动机的整个操作循环期间陶瓷阀引导件保持在气缸盖内的适当位置。 这通过利用围绕陶瓷阀引导件的固定组件实现。 固定组件包括下固定元件和上固定元件以及设置在下固定元件和上固定元件之间的弹簧。 当安装在发动机中时,阀弹簧将轴向载荷放置在固定元件上,该固定元件压缩弹簧并迫使下固定元件和上固定元件与陶瓷套筒和气缸盖径向接合。 从而,强制地连接陶瓷阀引导件和气缸盖。

    Method of mounting a ceramic valve guide assembly
    2.
    发明授权
    Method of mounting a ceramic valve guide assembly 失效
    安装陶瓷阀导向组件的方法

    公开(公告)号:US5372103A

    公开(公告)日:1994-12-13

    申请号:US232922

    申请日:1994-04-25

    IPC分类号: F01L3/08 F02F1/24 F01L3/02

    摘要: In order to achieve great engine efficiency, heat, normally dissipated through the cooling system, is directed through the exhaust passage to increase the turbocharger output. Conventional iron base valve guides cannot operate effectively within the high temperature ranges. Therefore, ceramic valve guides capable of withstanding high temperature ranges are being used for increased engine durability. Unfortunately, ceramic valve guides are difficult to install into a cylinder head using any currently available techniques. The present invention provides a simple means for mounting a ceramic valve guide assembly (52) within a cylinder head (18). A ceramic sleeve (70) is inserted into a metallic sleeve (80). The ceramic sleeve (70) and the metallic sleeve (80) are machined so that an interference fit is obtained when assembled to define the valve guide assembly (52). The valve guide assembly (52) is installed into the cylinder head (18) in a normal manner. Proper selection of the dimensions and materials for the ceramic sleeve (70) and the metallic sleeve (80) will result in a design wherein the stresses and contact pressures of the ceramic sleeve (70), the metallic sleeve (80), and the cylinder head (18) are each kept reasonable at all conditions encountered during manufacturing, assembly, and operation of the engine.

    摘要翻译: 为了获得很好的发动机效率,通常通过冷却系统耗散的热被引导通过排气通道以增加涡轮增压器输出。 传统的铁基阀导轨在高温范围内无法有效运行。 因此,能够耐受高温范围的陶瓷阀导向器被用于提高发动机耐久性。 不幸的是,使用任何当前可用的技术难以将陶瓷阀导向器安装到气缸盖中。 本发明提供了一种用于将陶瓷阀导向组件(52)安装在气缸盖(18)内的简单装置。 将陶瓷套筒(70)插入金属套筒(80)中。 对陶瓷套筒(70)和金属套筒(80)进行加工,以便当组装成限定阀导向组件(52)时获得过盈配合。 阀导向组件(52)以正常方式安装到气缸盖(18)中。 适当选择陶瓷套筒(70)和金属套筒(80)的尺寸和材料将导致设计,其中陶瓷套筒(70),金属套筒(80)和圆柱体(70)的应力和接触压力 在发动机的制造,组装和运行期间遇到的所有条件下,头(18)都保持合理。

    Method of providing an anti-stick coating on non-oriented,
semi-processed electrical steels to be subjected to a quality anneal
    3.
    发明授权
    Method of providing an anti-stick coating on non-oriented, semi-processed electrical steels to be subjected to a quality anneal 失效
    在未取向的半加工电工钢上提供防粘涂层以进行质量退火的方法

    公开(公告)号:US4367101A

    公开(公告)日:1983-01-04

    申请号:US251136

    申请日:1981-04-06

    摘要: A process of providing an inorganic anti-stick coating directly on non-oriented, semi-processed electrical steels by applying to such steels a coating solution containing Al.sup.+++, Mg.sup.++, and H.sub.2 PO.sub.4.sup.- in a specified relative relationship, the concentration of Al.sup.+++, Mg.sup.++, and H.sub.2 PO.sub.4.sup.- comprising 100 parts by weight calculated as Al.sub.2 O.sub.3, MgO and H.sub.3 PO.sub.4, respectively, on a water-free basis. The coating solution may additionally contain from 0 to 150 parts by weight of colloidal silica on a water-free basis. Chromic anhydride (C.sub.r O.sub.3) may be added to the coating solution to improve its wettability and improve the moisture resistance of the anti-stick coating. The coating solution is so diluted with water as to provide a uniform coating as thin as possible to prevent lamination sticking and having a coating weight of less than 2 grams per square meter on each side. The coated electrical steel is subjected to a heat treatment to cure the anti-stick coating thereon.

    摘要翻译: 通过向这种钢施加含有Al +++,Mg ++和H 2 PO 4 - 的涂层溶液,以特定的相对关系,直接在无取向的半加工电工钢上提供无机防粘涂层,Al +++,Mg ++, 和H 2 PO 4 - 分别包含100重量份,以无水基计算为Al 2 O 3,MgO和H 3 PO 4。 涂布溶液可以在无水基础上另外含有0至150重量份的胶体二氧化硅。 可以向涂料溶液中加入铬酸酐(CrO 3)以改善其润湿性并提高防粘涂层的耐湿性。 涂覆溶液用水稀释,以提供尽可能薄的均匀涂层,以防止层压粘结,并且每侧具有小于2克/平方米的涂层重量。 对涂覆的电工钢进行热处理以固化其上的防粘涂层。

    Stable slurry of inactive magnesia and method therefor
    4.
    发明授权
    Stable slurry of inactive magnesia and method therefor 失效
    不稳定的氧化镁的稳定浆料及其方法

    公开(公告)号:US4344802A

    公开(公告)日:1982-08-17

    申请号:US967725

    申请日:1978-12-08

    IPC分类号: B23K35/24 H01F1/147

    CPC分类号: H01F1/14783 C23D5/10

    摘要: An aqueous magnesia slurry for forming an insulative glass coating on silicon steel, wherein a substantial portion of the magnesia is inactive (a citric acid activity greater than 200 seconds), a decomposable phosphate compound is present within the range of 2% to 25% by weight calculated as P.sub.2 O.sub.5, based on the dry weight of magnesia, and the magnesia concentration is at least 0.24 grams per cubic centimeter of slurry. The slurry is stable against settling for up to 10 hours and has a desirable viscosity for coating application by conventional means. From 10% to 100% inactive magnesia may be used with the remainder an active magnesia (citric acid activity of 20 to 40 seconds). Preferred phosphate compounds include monocalcium phosphate monohydrate, water soluble ammonium polyphosphate and dicalcium phosphate dihydrate.

    摘要翻译: 一种用于在硅钢上形成绝缘玻璃涂层的氧化镁水浆,其中大部分氧化镁是无活性的(柠檬酸活性大于200秒),可分解的磷酸盐化合物存在于2%至25%的范围内,通过 重量计算为P2O5,基于氧化镁的干重,氧化镁浓度为至少0.24克/立方厘米浆料。 浆料对沉降稳定长达10小时,并且通过常规方法具有期望的涂料粘度。 可以使用10%至100%的无活性氧化镁,余量为活性氧化镁(柠檬酸活性为20至40秒)。 优选的磷酸盐化合物包括一水合磷酸钙,水溶性多磷酸铵和二水合磷酸二钙。

    Method and aqueous coating compositions for forming anti-stick and
insulative coatings on semi-processed and fully-processed electrical
steels
    5.
    发明授权
    Method and aqueous coating compositions for forming anti-stick and insulative coatings on semi-processed and fully-processed electrical steels 失效
    用于在半加工和全加工电工钢上形成防粘和绝缘涂层的方法和水性涂料组合物

    公开(公告)号:US4496399A

    公开(公告)日:1985-01-29

    申请号:US612741

    申请日:1984-05-21

    摘要: A method and aqueous coating composition for forming an anti-stick and insulative coating on cold-rolled, non-oriented, semi-processed steel; cold-rolled, non-oriented, fully-processed steel; cold-rolled motor lamination steel; and punching quality oriented electrical steel. The coating composition has an inorganic portion and an organic portion. The inorganic portion comprises, on a water-free basis and by weight, 3% to 11% Al.sup.+++, 3% to 15% Mg.sup.++ and 78% to 87% H.sub.2 PO.sub.4.sup.- calculated as Al.sub.2 O.sub.3, MgO and H.sub.3 PO.sub.4, respectively, the total weight percentage being 100% on a water-free basis and the concentration being 100 parts by weight on a water-free basis; and either 33 to 250 parts by weight colloidal silica on a water-free basis, together with from 10 to 25 parts by weight chromic anhydride for every 100 parts by weight H.sub.2 PO.sub.4.sup.- calculated as H.sub.3 PO.sub.4, or from 30 to 250 parts by weight aluminum silicate calculated as Al.sub.2 O.sub.3.SiO.sub.2 on a water-free basis. The inorganic portion contains by weight at least 60% water when colloidal silica is used and at least 40% water when aluminum silicate is used. The organic portion comprises a water soluble or dispersible resin containing by weight at least 40% water. The inorganic and organic portions are combined so that the organic content is from about 15 to about 1350 parts by weight per 100 parts Al.sub.2 O.sub.3, MgO and H.sub.3 PO.sub.4 on a water-free basis. The coating composition is applied to the steel and cured at a strip temperature of from about 250.degree. F. (120.degree. C.) to about 750.degree. F. (400.degree. C.) in air.

    摘要翻译: 一种用于在冷轧,非取向的半加工钢上形成耐粘和绝缘涂层的方法和水性涂料组合物; 冷轧,无取向,全加工钢; 冷轧电机层压钢; 和冲压质量导向的电工钢。 涂料组合物具有无机部分和有机部分。 无机部分分别以Al 2 O 3,MgO和H 3 PO 4计,分别以Al 2 O 3,MgO和H 3 PO 4计算的无水基和3重量%至3重量%至11重量%的Al +++,3%至15%Mg ++和78%至87%H 2 PO 4 - ,总重量百分比 在无水基础上为100%,在无水基础上浓度为100重量份; 和无水碱性的33至250重量份的胶体二氧化硅,以及每100重量份的作为H 3 PO 4的H 2 PO 4计算的10至25重量份的铬酸酐,或30至250重量份的硅酸铝 以无水基计算为Al2O3.SiO2。 当使用胶体二氧化硅时,无机部分含有至少60%的水,当使用硅酸铝时,无机部分含有至少40%的水。 有机部分包含含有至少40重量%水的水溶性或分散性树脂。 将无机和有机部分组合,使得有机物含量在无水基础上为每100份Al 2 O 3,MgO和H 3 PO 4为约15至约1350重量份。 将涂料组合物施加到钢上并在空气中在约250°F(120℃)至约750°F(400℃)的条带温度下固化。

    Oxygen protection system for carbon
    8.
    发明授权
    Oxygen protection system for carbon 失效
    碳保护系统

    公开(公告)号:US4868056A

    公开(公告)日:1989-09-19

    申请号:US150901

    申请日:1988-02-01

    IPC分类号: C04B41/52 C04B41/89

    摘要: The invention deals with an oxidation protection system for an inhibited carbon substrate which comprises a friable layer applied to the carbon substrate surface. The friable layer is then coated with a dense oxidation resistant outer layer.

    摘要翻译: 本发明涉及一种用于抑制碳基板的氧化保护系统,其包括施加到碳基板表面的易碎层。 然后用易氧化抗层外层涂覆易碎层。

    Insulative coating composition for electrical steels
    9.
    发明授权
    Insulative coating composition for electrical steels 失效
    电工钢的绝缘涂料组合物

    公开(公告)号:US4498936A

    公开(公告)日:1985-02-12

    申请号:US612450

    申请日:1984-05-21

    摘要: An insulative coating composition for electrical steels containing Al.sup.+++, Mg.sup.++, H.sub.2 PO.sub.4.sup.- and aluminum silicate in specified proportions, in the form of a stable aqueous suspension which provides a tension-imparting coating having good curing characteristics and which imparts improved magnetic properties to electrical steels.

    摘要翻译: 一种用于以特定比例含有Al +++,Mg ++,H 2 PO 4 - 和硅酸铝的电工钢的绝缘涂料组合物,其形式为稳定的水性悬浮液,其提供具有良好固化特性的赋予张力的涂层并赋予电工钢改善的磁性能。

    Insulative coatings for electrical steels
    10.
    发明授权
    Insulative coatings for electrical steels 失效
    电工钢绝缘涂料

    公开(公告)号:US4347085A

    公开(公告)日:1982-08-31

    申请号:US256856

    申请日:1981-04-23

    摘要: An aqueous coating solution for forming an insulative coating directly on electrical steels and on steels having a mill glass thereon. The aqueous solution comprises an aluminum-magnesium phosphate premix solution and a colloidal silica solution. The premix solution also comprises from about 10 to about 45 parts by weight Cr.sub.2 O.sub.3 for every 100 parts by weight H.sub.2 PO.sub.4.sup.- calculated as H.sub.3 PO.sub.4 on a water-free basis, from about 5 to about 20 parts of a compound chosen from the class consisting of boric acid, vanadium pentoxide and mixtures thereof per 100 parts H.sub.2 PO.sub.4.sup.- calculated as H.sub.3 PO.sub.4 on a water-free basis and additional Mg.sup.++ up to that amount which will go into solution. The colloidal silica solution is present in an amount of from that amount which will form a good glass up to 40 volume percent to provide a coating solution having a premix solution to colloidal silica solution volume ratio up to 1.5:1.

    摘要翻译: 一种用于直接在电工钢上形成绝缘涂层和在其上具有磨玻璃的钢上的水性涂料溶液。 水溶液包含磷酸铝镁预混物溶液和胶体二氧化硅溶液。 预混物溶液还包含约10至约45重量份的Cr 2 O 3,每100重量份的H 2 PO 4 - 以无水基计算为H 3 PO 4,约5至约20份选自硼酸的化合物 酸,五氧化二钒及其混合物,每100份H 2 PO 4 - 以无水基计算为H 3 PO 4,并加入额外的Mg ++至达该溶液的量。 胶体二氧化硅溶液的存在量可以达到最高达40体积百分比的良好玻璃,以提供一种涂料溶液,该涂料溶液的胶体二氧化硅溶液的体积比高达1.5:1。