Patent Application
20180106227
This patent application is directed to fuel systems and, more specifically, to a fuel injector mounting system.
Typical fuel injection systems include a plurality of fuel injectors mounted to an associated engine. In some applications, the injectors are mounted such that they inject fuel into an air inlet port just behind an inlet valve. In other applications, the injectors are mounted to directly inject fuel into the combustion chamber. In any case, the injector must be retained in position and supplied with the appropriate fuel and control connections.
Embodiments of the fuel injector mounting system introduced herein may be better understood by referring to the following Detailed Description in conjunction with the accompanying drawings, in which like reference numerals indicate identical or functionally similar elements:
The headings provided herein are for convenience only and do not necessarily affect the scope or meaning of the claimed embodiments. Further, the drawings have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be expanded or reduced to help improve the understanding of the embodiments. Moreover, while the disclosed technology is amenable to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and are described in detail below. The intention, however, is not to limit the embodiments described. On the contrary, the embodiments are intended to cover all modifications, equivalents, and alternatives falling within the scope of the embodiments as defined by the appended claims.
A fuel injector mounting system for mounting an injector to an engine cylinder liner is disclosed. In an embodiment, the system includes an injector adapter having an adapter body including a first end portion threaded for engagement with a cylinder liner and an injector port formed in the adapter body opposite the first end portion. The injector port includes a plurality of concentric bores configured to receive the proximal end portion of an injector. A flange extends transversely from the adapter body and a collar engages a portion of the injector and connects to the flange to retain the injector in the adapter. In some embodiments, a transverse passageway extends through a sidewall of the adapter body and intersects the injector port and an annular fitting is disposed on the injector adapter for fluid communication with the transverse passageway. In some embodiments, an injector support bracket attaches a distal end portion of the injector to the engine.
Various examples of the device and systems introduced above will now be described in further detail. The following description provides specific details for a thorough understanding and enabling description of these examples. One skilled in the relevant art will understand, however, that the techniques discussed herein may be practiced without many of these details. Likewise, one skilled in the relevant art will also understand that the technology can include many other features not described in detail herein. Additionally, some well-known structures or functions may not be shown or described in detail below so as to avoid unnecessarily obscuring the relevant description.
The terminology used below is to be interpreted in its broadest reasonable manner, even though it is being used in conjunction with a detailed description of some specific examples of the embodiments. Indeed, some terms may even be emphasized below; however, any terminology intended to be interpreted in any restricted manner will be overtly and specifically defined as such in this section.
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The injector adapter 220 includes a longitudinally extending adapter body 240. The adapter body 240 includes a first end portion 242 having threads 244 formed thereon for engagement with the cylinder liner 206. The adapter body 240 seals against the cylinder liner 206 with a sealing washer 272. The injector port 246 is formed into a second end portion 243 of the adapter body 240 opposite the first end portion 242. The injector port 246 includes a plurality of concentric bores 248, 250, 252, 254, and 256 that are configured to receive the proximal end portion 203 of the fuel injector 202 (see
The adapter body 240 extends through a coolant collar 232 and engages the cylinder liner 206. Coolant travels in the space between the coolant collar 232 and the cylinder liner 206. Accordingly, the adapter body 240 includes an O-ring 264 to seal against the coolant collar boss 234. It should be appreciated that O-ring 264, as well as other O-ring seals mentioned herein, each have a corresponding O-ring groove appropriately sized and configured for the O-ring.
Injector body 240 includes a flange 260 that extends transversely from the second end portion 243 of the adapter body 240. A pair of threaded studs 262 are connected to the flange 260 for mounting the retaining collar 222 (shown in
The above description and drawings are illustrative and are not to be construed as limiting. Numerous specific details are described to provide a thorough understanding of the disclosure. However, in some instances, well-known details are not described in order to avoid obscuring the description. Further, various modifications may be made without deviating from the scope of the embodiments. Accordingly, the embodiments are not limited except as by the appended claims.
Reference in this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the disclosure. The appearances of the phrase “in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Moreover, various features are described which may be exhibited by some embodiments and not by others. Similarly, various requirements are described which may be requirements for some embodiments but not for other embodiments.
The terms used in this specification generally have their ordinary meanings in the art, within the context of the disclosure, and in the specific context where each term is used. It will be appreciated that the same thing can be said in more than one way. Consequently, alternative language and synonyms may be used for any one or more of the terms discussed herein, and any special significance is not to be placed upon whether or not a term is elaborated or discussed herein. Synonyms for some terms are provided. A recital of one or more synonyms does not exclude the use of other synonyms. The use of examples anywhere in this specification, including examples of any term discussed herein, is illustrative only and is not intended to further limit the scope and meaning of the disclosure or of any exemplified term. Likewise, the disclosure is not limited to various embodiments given in this specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. In the case of conflict, the present document, including definitions, will control.
This application is a continuation of U.S. patent application Ser. No. 15/151,244 filed on May 10, 2016, entitled “FUEL INJECTOR MOUNTING SYSTEM FOR MOUNTING AN INJECTOR TO AN ENGINE CYLINDER LINER,” the disclosure of which is incorporated herein by references in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15151244 | May 2016 | US |
| Child | 15845437 | US |
