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    • 35. 发明申请
    • METHOD AND APPARATUS FOR MODIFYING THE COMBUSTION CHAMBER OF AN ENGINE TO ACCEPT CERAMIC LINERS
    • 用于修改发动机燃烧室以接受陶瓷内衬的方法和装置
    • WO1985002805A1
    • 1985-07-04
    • PCT/US1983002040
    • 1983-12-27
    • FORD-WERKE AKTIENGESELLSCHAFTFORD MOTOR COMPANY LIMITEDFORD MOTOR COMPANYHARTSOCK, Dale, L.
    • FORD-WERKE AKTIENGESELLSCHAFTFORD MOTOR COMPANY LIMITEDFORD MOTOR COMPANY
    • B23P15/10
    • B23C5/2278B23P15/00F02F7/0087F05C2201/0436F05C2253/16Y10T29/49233Y10T29/49716Y10T29/49945
    • A method of modifying a conventional internal combustion engine to accept ceramic material. A cast iron extension member (20) is metallurgically joined to the cast iron engine block (10), the extension member (20) having a wall defining a bore opening (21) aligned with and larger than the bore opening (11) of the engine block (10). The extension member (20) has a height substantially equal to or greater than the axial stroke of the piston (17). The diameter of the upper portion of the wall, defining the bore opening (11) in the engine block (10), is enlarged to define an annular shoulder (23); the shoulder (23) has an outer surface (23A) substantially axially aligned with the wall defining the bore opening (11) in the extension member (20). A cylindrical ceramic liner (26), such as zirconia or alumina, is attached within the wall of the bore opening (11) of the extension member (20) by use of a high strength metallic sleeve (25) which is fitted along the outer surface of the shoulder (23). The ceramic liner (26) has an internal surface (26a) aligned with the wall of the bore opening (11) in the engine block (10). A metallic cap (30) comprised of stainless steel or cast iron is attached to the top of the piston (17 at 31), the cap (30) carrying a ceramic facing (32). The cap (30) has an effective height commensurate with the effective height of the extension member (20). The cap (30) defines a trapped air space (39) between the extension cap (30) and piston (17), and the cap (30) has its side wall aligned with the side wall of the piston (17).
    • 改进常规内燃机以接受陶瓷材料的方法。 铸铁延伸构件(20)冶金地连接到铸铁发动机缸体(10)上,延伸构件(20)具有一个壁,该壁限定了一个与该开口(21)的孔开口(11)对准且大于 发动机缸体(10)。 延伸构件(20)的高度大致等于或大于活塞(17)的轴向行程。 限定发动机缸体(10)中的孔口(11)的壁的上部的直径被扩大以限定环形肩部(23); 肩部(23)具有与限定延伸构件(20)中的孔开口(11)的壁基本轴向对准的外表面(23A)。 圆柱形陶瓷衬垫(例如氧化锆或氧化铝)通过使用高强度金属套筒(25)而附接在延伸构件(20)的孔口(11)的壁内,该套筒沿着外部 肩部(23)的表面。 陶瓷衬套(26)具有与发动机缸体(10)中的孔开口(11)的壁对准的内表面(26a)。 由不锈钢或铸铁构成的金属盖(30)附接到活塞的顶部(31,31),盖(30)承载陶瓷面(32)。 盖(30)具有与延伸构件(20)的有效高度相当的有效高度。 盖(30)限定在延伸盖(30)和活塞(17)之间的被捕获的空气空间(39),并且盖(30)的侧壁与活塞(17)的侧壁对准。