公开(公告)号：WO2008091498A1

公开(公告)日：2008-07-31

申请号：PCT/US2008/000406

申请日：2008-01-11

Applicant: CATERPILLAR INC. ,  SPARKS, James, D. ,  RAAB, Karen ,  JOHNSTON, Scott, A. ,  EL-SAYED, Sami

Inventor： SPARKS, James, D. ,  RAAB, Karen ,  JOHNSTON, Scott, A. ,  EL-SAYED, Sami

IPC: F02M61/16 ,  F02M61/18

CPC classification number: F02M61/168 ,  F02M61/166 ,  F02M61/1806 ,  F02M2200/8084 ,  F02M2200/9046 ,  Y10T29/49407 ,  Y10T29/49734 ,  Y10T29/49737

Abstract: A method of manufacturing a fuel injector (10, 110, 210) having high-flow orifices (320) in its tip (13, 113, 213) includes removing a bulb (332) from a fuel injector tip (13, 113, 213) having at least one spray orifice (320) with a first diameter, and friction welding a slug (16) to the fuel injector tip (13, 113, 213), including forming a fused interface of material of the slug (16) and material of the fuel injector tip (13, 113, 213). The method further includes modifying the slug (16) subsequent to friction welding the slug (16) to the fuel injector tip (13, 113, 213), including forming a new bulb (32, 132, 232) from the slug (16) having at least one spray orifice (20, 120, 220) therein with a different diameter than that of the removed bulb (332). A remanufactured fuel injector (10, 1 10, 210), and fuel injector tip (13, 113, 213), includes an injector tip body having a first tip portion (14, 114, 214) of a first material and a second tip portion (16, 1 16, 216) of a material compatible for friction welding with the first material. The injector tip body further includes a third tip portion (18, 118, 218) attaching the first tip portion (14, 114, 214) to the second tip portion (16, 116, 216), the third tip portion (18, 118, 218) including a friction weld formed during remanufacturing of the fuel injector tip (13, 113, 213).

Abstract translation: 在其顶端（13,113,213）中制造具有高流量孔（320）的燃料喷射器（10,110,210）的方法包括从燃料喷射器尖端（13,113,213）中去除灯泡（332） ）具有至少一个具有第一直径的喷射孔（320），并将块塞（16）摩擦焊接到燃料喷射器顶端（13,113,213），包括形成块塞（16）的材料的熔融界面和 燃料喷射头（13,113,213）的材料。 该方法还包括在将块塞（16）摩擦焊接到燃料喷射器尖端（13,113,213）之后，修改塞子（16），包括从塞子（16）形成新的灯泡（32,132,232） 在其中具有至少一个喷射孔（20,120,220），其具有与被去除的灯泡（332）的直径不同的直径。 再制造燃料喷射器（10,110,210）和燃料喷射器顶端（13,113,213）包括具有第一材料的第一尖端部分（14,114,214）和第二尖端 与第一材料摩擦焊接相容的材料的部分（16,116,216）。 喷射器末端主体还包括将第一末端部分（14,114,214）连接到第二末端部分（16,116,216）的第三末端部分（18,118,218），第三末端部分（18,118） ，218），包括在燃料喷射器尖端（13,113,213）的再制造期间形成的摩擦焊接。