SPRAYER AND PRESSURE WASHER COMPRISING SPRAYER

A pressure washer for dispensing either water or a water-chemical mixture includes an injector for injecting chemical into water flowing through a hose at a relatively high flow rate. A sprayer connected to the hose has a passage having one upstream, one middle, and first and second downstream porti...

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Bibliographische Detailangaben
Hauptverfasser:	Lemay, William, Salmons, Steven
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS CLEANING CLEANING IN GENERAL NOZZLES PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A pressure washer for dispensing either water or a water-chemical mixture includes an injector for injecting chemical into water flowing through a hose at a relatively high flow rate. A sprayer connected to the hose has a passage having one upstream, one middle, and first and second downstream portions. The first downstream portion is connected to a high pressure conduit and the second downstream portion is connected to a high flow conduit less resistance to fluid flow than the high pressure conduit. A valve between the upstream portion and the middle portion selectively allows fluid flow to the middle portion of the passage. Another valve between the middle portion and downstream portion selectively allows flow to the second downstream portion and high flow conduit. Otherwise the valve directs flow through only the first downstream portion and high pressure conduit, which limits flow rate so as not to activate the injector.