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    • 4. 发明授权
    • Ceramic honeycomb structural body and catalyst comprising the same
    • 陶瓷蜂窝结构体和包含该陶瓷蜂窝结构体的催化剂
    • US5494881A
    • 1996-02-27
    • US216429
    • 1994-03-23
    • Minoru MachidaToshio YamadaYukihito Ichikawa
    • Minoru MachidaToshio YamadaYukihito Ichikawa
    • B01J35/04F01N3/28B01J35/00
    • F01N3/2828B01J35/04
    • A ceramic honeycomb catalyst includes a thin-walled honeycomb structural body (10) and a catalytic substance carried by the honeycomb structural body (10). The honeycomb structural body (10) has a number of longitudinally extending flow passages (13) defined by an outer peripheral wall (11) and partition walls (12) with a reduced thickness (t). The honeycomb structural body (10) satisfies particular relationships between the partition wall thickness (t) and the open frontal area (OFA) or bulk density (G). Notwithstanding the thin-walled partition walls, the honeycomb structural body (10) has practically satisfactory compressive strength characteristics. The catalyst comprising the honeycomb structural body (10) has reduced pressure loss and heat capacity.
    • 陶瓷蜂窝体催化剂包括薄壁蜂窝结构体(10)和由蜂窝结构体(10)承载的催化物质。 蜂窝结构体(10)具有由外周壁(11)和厚度(t)减小的隔壁(12)限定的多个纵向延伸的流动通道(13)。 蜂窝结构体(10)满足分隔壁厚度(t)和开口正面面积(OFA)或体积密度(G)之间的特定关系。 尽管具有薄壁的隔壁,蜂窝结构体(10)具有实际上令人满意的抗压强度特性。 包含蜂窝结构体(10)的催化剂具有减小的压力损失和热容量。
    • 5. 发明授权
    • Honeycomb stuctural bodies
    • 蜂窝结构体
    • US5455097A
    • 1995-10-03
    • US212803
    • 1994-03-15
    • Minoru MachidaMasaomi KamiyaToshio Yamada
    • Minoru MachidaMasaomi KamiyaToshio Yamada
    • B01J35/04F01N3/28F01N13/02B32B3/12
    • F01N3/2828B01J35/04F01N13/009F01N2470/10Y10T428/24149Y10T428/24744
    • A honeycomb structural body including an outermost peripheral wall, and partition walls axially defining a number of through holes inside the outermost peripheral wall. The honeycomb structural body is bent around at least one line located orthogonally to an extending direction of the through holes, wherein L1/L2.gtoreq.0.8, and R.gtoreq.100 mm, in which L1 is an axial length of a longest through hole among through holes located in an outer portion of the honeycomb structural body, L2 is an axial length of a shortest through hole among through holes located in an inner portion of the honeycomb structural body, and R is a radius of curvature of a center line of the honeycomb structural body defined by continuously connecting centroids of said outermost peripheral wall of the honeycomb structural body in respective planes orthogonal to the extending direction of the through holes thereof. The outer and inner portions of the honeycomb structural body are located outside and inside a plane, respectively, passing the center line of the honeycomb structural body and always extending in parallel to the at least one line around which the honeycomb structural body is bent.
    • 蜂窝结构体,其包括最外周壁,以及在最外周壁内轴向限定多个通孔的隔壁。 蜂窝结构体围绕与通孔延伸方向正交的至少一条线弯曲,其中L1 / L2> / = 0.8,R> / = 100mm,其中L1是最长通过的轴向长度 位于蜂窝结构体的外部的通孔中的孔L2是位于蜂窝结构体的内部的通孔中的最短通孔的轴向长度,R是中心线的曲率半径 所述蜂窝结构体通过在与其通孔的延伸方向垂直的各个平面中连续地连接蜂窝结构体的最外周壁的质心而限定。 蜂窝结构体的外部和内部分别位于通过蜂窝结构体的中心线的平面的外侧和内侧,并且总是平行于蜂窝结构体弯曲的至少一条线延伸。
    • 10. 发明授权
    • Precombustion chamber construction for an internal combustion engine
    • 内燃机预燃室结构
    • US4875939A
    • 1989-10-24
    • US241899
    • 1988-09-08
    • Yasuhiro MiyakawaMinoru Machida
    • Yasuhiro MiyakawaMinoru Machida
    • F02B19/00F02B19/16
    • F02B19/165F02B2019/006Y02T10/125
    • A ceramic precombustion chamber construction for an internal combustion engine including a precombustion chamber formed by a ceramic body to be inserted in a precombustion chamber receiving cavity of a metal cylinder head. Projections are formed on an outer circumferential surface of a metal sleeve fitted on the ceramic body, or on an inner circumferential surface of the precombustion chamber receiving cavity of a metal cylinder head, or on an outer circumferential surface of the ceramic body. Thermal insulating spaces are formed by the projections and the inner circumferential surface of the precombustion chamber receiving cavity or the outer circumferential surface of the metal sleeve or the outer circumferential surface of the ceramic body. One of the projections is formed with a glow-plug receiving aperture which communicates with a glow-plug receiving aperture formed in the precombustion chamber receiving cavity of the metal cylinder head. As a result, leakage of burnt gases is prevented to ensure a complete thermal insulating effect.
    • 一种用于内燃机的陶瓷预燃室结构,包括由陶瓷体形成的预燃室,以插入到金属气缸盖的预燃室容纳空腔中。 凸出部形成在安装在陶瓷体上的金属套筒的外周面,或金属制气缸头的预燃室容纳腔的内周面上,或陶瓷体的外周面上。 绝热空间由预燃室容纳腔的突出部和内周面,金属套筒的外周面或陶瓷体的外周面形成。 突起之一形成有电热塞接收孔,其与形成在金属气缸盖的预燃室容纳腔中的电热塞接收孔连通。 结果,防止燃烧气体的泄漏,以确保完全的隔热效果。