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Ultrasonic fuel injector

A fuel injector, ultrasonic technology, applied in the direction of low pressure fuel injection, low pressure fuel injection, fuel injection device, etc., can solve the problem of difficult to accommodate and operate valve components, etc.

Inactive Publication Date: 2009-02-18
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, such devices do not readily accommodate operating valve members, which are common in some ultrasonic fluid delivery devices used to control fluid delivery from the device

Method used

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  • Ultrasonic fuel injector
  • Ultrasonic fuel injector
  • Ultrasonic fuel injector

Examples

Experimental program
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Embodiment Construction

[0024] Referring now to the accompanying drawings, in particular figure 1 , generally designated 21, is one embodiment of an ultrasonic fuel injector for delivering fuel to an engine (not shown). The fuel injector can be used in land, air, sea vehicles, generators, and other devices using engines. In particular, the fuel injector is suitable for use with engines using diesel fuel. However, it should be understood that the term fuel as used herein means any combustible fuel used in the operation of the engine and is not limited to diesel.

[0025]Fuel injector 21 includes a housing generally indicated at 23 for receiving pressurized fuel from a fuel source (not shown) and delivering an atomized spray of fuel droplets to an engine, such as to a combustion chamber of the engine. In the illustrated embodiment, the housing 23 includes an elongated body 25, a nozzle 27 (sometimes referred to as a valve body) and a retaining member 29 (such as a nut) that holds the body, nozzle and...

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PUM

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Abstract

Provided is a fuel injector for delivering fuel to an engine in which a housing of the injector has an internal fuel chamber and at least one exhaust port in fluid communication with the fuel chamber. A valve member is moveable relative to the housing between a closed position in which fuel within the fuel chamber is inhibited against exhaustion from the housing, and an open position in which fuel is exhaustable from the housing. An ultrasonic waveguide is separate from the housing and valve member, with substantially the entire ultrasonic waveguide disposed within the fuel chamber to ultrasonically excite fuel within the fuel chamber prior to the fuel exiting through the at least one exhaust port in the open position of the valve member. An excitation device is operable in the open position of the valve member to ultrasonically excite the ultrasonic waveguide.

Description

technical field [0001] The present invention relates generally to fuel injectors for delivering fuel to an engine, and more particularly, to an ultrasonic fuel injector in which ultrasonic energy is imparted or imparted to the fuel by the injector prior to delivery to the engine. Background technique [0002] Fuel injectors are commonly used to deliver combustible fuel to the combustion chambers of engine cylinders. A typical fuel injector includes a housing that includes a nozzle having one or more discharge ports through which fuel exits the injector for delivery into the combustion chamber. A valve member, such as commonly referred to as a pin or needle, is movably disposed within the fuel injector housing. In its closed position the valve member seals the nozzle against injection of fuel, while in its open position fuel is ejected from the nozzle via the discharge opening. In operation, high pressure fuel is maintained within the injector housing when the valve member ...

Claims

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Application Information

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IPC IPC(8): F02M69/04F02M47/02
CPCF02M47/027F02M2200/306F02M27/08F02M69/041F02M2200/21F02M61/168F02M69/04F02M47/02F02M61/16
Inventor P·S·麦克尼科尔斯T·D·埃勒特T·R·齐尔克A·E·迈尔G·布罗姆费尔德
Owner KIMBERLY-CLARK WORLDWIDE INC
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