Mounting apparatus

Claim 2

An improved mounting apparatus, for use in combination with an internal combustion engine having a fuel injection nozzle, a fuel supply line and a cylinder head with the head having a substantially smooth nozzle-receiving bore, comprising: means forming an external frustoconical surface on said nozzle; an adapter having an elongated opening therethrough registerable with the nozzle-receiving bore in the head, which opening has an internal frustoconical surface positionable in mating engagement with said external frustoconical surface of said nozzle for supporting the nozzle in predetermined axially extended relation in said bore; means for operatively connecting said fuel supply line to the adapter and including passage means for supplying fuel therefrom into the nozzle; first fastening means spaced from said opening for detachably securing said adapter to said head; and second fastening means independent of said first fastening means and including an internally screw-threaded protuberance formed upon said adapter in coaxially extending relation above said opening thereof and a mating externally screw-threaded member provided about said nozzle which is selectively screwthreadably engageable with said protuberance for separately removably securing said nozzle to said adapter so that the nozzle is selectively removable from the engine without requiring the disassembly of the adapter from the cylinder head or any disturbance of the fuel supply line.

Claim 3

The mounting apparatus of claim 1 wherein said passage means includes: a pair of passages individually located in said adapter and said nozzle and disposed in aligned registry with each other in centrally disposed relation through their respective frustoconical surfaces so that said surfaces are positionable in sealing contact about said passages to prevent fuel leakeage therefrom.

Claim 4

The mounting apparatus of claim 2 wherein said frustoconical surface of said nozzle is provided by a radially disposed collar portion about said nozzle and having an upper end remote from said head, and said externally screw-threaded member is a tubular fitting loosely mounted about said nozzle having means on one end thereof for receiving a tool for imparting turning movement thereto and means on its other end adjacent said collar portion axially engagable against said upper end thereof to urge said frustoconical surfaces into sealing contact upon screw-threaded engagement of said fitting into said protuberance.

Claim 5

The mounting apparatus of claim 3 wherein said first fastening means includes; a screw-threaded aperture formed in said head in parallel offsetting relation to said substantially smooth nozzle-receiving bore; an aperture in said adapter registerable with said screw-threaded aperture in the head; and an elongated screw threaded fastener device positionable through said aperture in the adapter and screw-threadably engagable with said screw-threaded aperture.

Claim 6

An improved fuel injection nozzle mounting apparatus, in combination with an internal combustion eNgine having a fuel injection nozzle providing an elongated nonthreaded body, a fuel supply line, and a cylinder head having a nonthreaded nozzle receiving bore therein and a threaded aperture spaced from such bore, wherein the improvement comprises: a frustoconically shaped collar portion provided about the center of said body of the nozzle, said collar portion having a radially disposed fuel passage therein and a radially disposed end surface; an adapter connected to said fuel supply line and including a frustoconically shaped opening therethrough mating with said frustoconically shaped collar portion of the nozzle for mounting said nozzle with one end of its body being disposed in predetermined axially extended relation in said nonthreaded nozzle receiving bore in the head and the other end of the body protruding from such bore, and a passage interconnecting the fuel supply line with said opening in registry with said passage of the collar portion, fastening means connected to said adapter and screw-threadably engageable with said threaded aperture of the head for detachably securing said adapter to the cylinder head; a tubular fitting disposed about the body of the nozzle in longitudinally disposed relation to said collar portion, the fitting having a radially disposed end surface positionable in abutting engagement against said end surface of the collar portion; and a threaded connection cooperatively provided between said fitting and the adapter for separately detachably securing the nozzle to the adapter so as to permit selective removal of the nozzle from the engine without requiring the disassembly of the adapter and the consequent disturbance of the fuel supply line.

Claim 7

An improved fuel injection nozzle mounting apparatus, in combination with an internal combustion eNgine having a fuel injection nozzle providing an elongated nonthreaded body, a fuel supply line, and a cylinder head having a nonthreaded nozzle receiving bore therein and a threaded aperture spaced from such bore, wherein the improvement comprises: a frustoconically shaped collar portion provided about the center of said body of the nozzle, said collar portion having a radially disposed fuel passage therein and a radially disposed end surface; an adapter connected to said fuel supply line and including a frustoconically shaped opening therethrough mating with said frustoconically shaped collar portion of the nozzle for mounting said nozzle with one end of its body being disposed in predetermined axially extended relation in said nonthreaded nozzle receiving bore in the head and the other end of the body protruding from such bore, and a passage interconnecting the fuel supply line with said opening in registry with said passage of the collar portion, fastening means connected to said adapter and screw-threadably engageable with said threaded aperture of the head for detachably securing said adapter to the cylinder head; a tubular fitting disposed about the body of the nozzle in longitudinally disposed relation to said collar portion, the fitting having a radially disposed end surface positionable in abutting engagement against said end surface of the collar portion; and a threaded connection cooperatively provided between said fitting and the adapter for separately detachably securing the nozzle to the adapter so as to permit selective removal of the nozzle from the engine without requiring the disassembly of the adapter and the consequent disturbance of the fuel supply line.

Claim 8

The mounting apparatus of claim 5 including: fuel drain means connected to said other protruding end of the nozzle body for draining off any internal fuel leakage from the nozzle.

Claim 9

The mounting apparatus of claim 6 wherein said fastening means includes; an elongated stud extending upwardly from said screw-threaded aperture in said head through an aperture in said adapter; an elongated tubular spacer member positionable on top of said adapter; and a nut screw-threadably engaged on a remote end of said stud for clamping said adapter to the head through an axial force transmitted through said spacer.

Claim 10

The mounting apparatus of claim 7 including clamping means secured to said remote end of said stud by another nut and engagable against said drain manifold for securing said manifold to the nozzle and for exerting a downward axial force through said nozzle to assist said stud in securing said adapter means to said head.

Claim 11

The mounting apparatus of claim 8 wherein said adapter is provided with an annular protuberance extending in coaxial relation above said opening thereof and said apparatus further includes an elastomeric boot secured about said protuberance and disposed over the protruding end of said nozzle for trapping any external fuel leakage from the nozzle.