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Ultrasonic liquid delivery device

A transmission device and ultrasonic technology, applied in the direction of fuel injection devices with sensors, mechanical control devices, fuel injection devices, etc., can solve problems such as difficult adaptation to valve operating parts

Inactive Publication Date: 2012-10-03
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, such devices do not readily accommodate valve operators, which are often used to control the liquid delivery of the device in some ultrasonic fluid delivery devices

Method used

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  • Ultrasonic liquid delivery device
  • Ultrasonic liquid delivery device
  • Ultrasonic liquid delivery device

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Experimental program
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Embodiment Construction

[0029] Referring now to the accompanying drawings, especially figure 1 , which shows an ultrasonic liquid delivery device in the form of an ultrasonic fuel injector for use with an internal combustion engine and indicated generally at 21 according to an embodiment of the invention. It should be understood, however, that the concepts disclosed herein in relation to fuel injector 21 are also applicable to other ultrasonic liquid delivery devices, including (without limitation) nebulizers and other drug delivery devices, molding equipment, humidifiers, paints Spraying device, ink delivery device, mixing device, homogenizing device, etc.

[0030]The term "liquid" as used herein refers to the amorphous (non-crystalline) state of matter between gases and solids, the molecules of which are more highly concentrated than those of gases, but much less concentrated than those of solids . A liquid may contain a single component or consist of multiple components. For example, a property...

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Abstract

In a control system and method for operating an ultrasonic liquid delivery device, an ultrasonic waveguide, separate from the housing, is disposed at least in part within an internal chamber of the housing to ultrasonically energize liquid prior to the liquid being exhausted from the housing through an exhaust port. An excitation device is operable to ultrasonically excite the waveguide and a control system controls operation of the liquid delivery device between an excitation mode in which the excitation device is operated at an excitation frequency to excite the ultrasonic waveguide and a ring down mode in which the excitation device is inoperable to excite the waveguide such that the waveguide rings down. The control system monitors the ring down and is responsive to the ring down to adjust the excitation frequency of the excitation device in the excitation mode thereof.

Description

technical field [0001] The present invention relates generally to liquid delivery devices for delivering atomized spray liquids, and more particularly, the present invention relates to control systems for controlling the operation of such ultrasonic liquid delivery devices. Background technique [0002] Ultrasonic liquid delivery devices are used in various fields in which liquid is excited to atomize the liquid to form a fine mist or spray of the liquid. For example, such devices may be used in nebulizers and other drug delivery devices, molding equipment, humidifiers, engine fuel injectors, paint spraying devices, ink delivery devices, mixing devices, homogenizing devices, and the like. Such delivery devices generally comprise a housing having a flow channel through which liquid under pressure flows to at least one, and sometimes a plurality of, discharge holes or outlets of the housing. Pressurized liquid is forced out of the housing at the discharge hole. In some confi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05G7/00B01F3/08
CPCF02M2200/24F02M61/10F02M47/027F02M2547/003F02M27/08F02M69/041F02M2200/21F02D41/2096F02D41/2467
Inventor T·D·埃勒特P·S·麦克尼科尔斯D·M·贝克尔
Owner KIMBERLY-CLARK WORLDWIDE INC