High-pressure jet nozzle

US5833148A · kind A · utility

Assignee

• Spraying Systems Deutschland GmbH · DE

Inventors

• Ernst Steinhilber · Asperg, DE
• Thomas Haegler · Waiblingen, DE
• Erwin Steiner · Weilheim, DE

Key dates

• Filing date: Oct 21, 1996
• Grant date: Nov 10, 1998
• Expiry date: Oct 21, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S239/19
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A flat-jet nozzle 1 for high-pressure cleaning apparatus has a nozzle mouth passaage formed by the intersection of a depression 21 with half-round base 22 shaped into a nozzle body 2 and a channel 6 leading to the nozzle mouth. In the zone of intersection with the depression 21, the channel has a spherically vaulted wall 12. The width b of the resulting passage .alpha. and the angle between the wall 12 bounding the edge 26 and the longitudinal axis 17 of the channel are dimensioned in such manner that a point defined by this value pair lies inside of a zone bounded by a hyperbolas. This tolerance range is given by the equation: EQU (b-B).multidot.(.alpha.-.alpha..sub.o)=C, in which: the width b is measured in millimeters (mm) and the angle .alpha. is measured in degrees (.degree.), the constant B lies in the range between 0.785 mm and 0.875 mm, the constant .alpha..sub.O lies between 8.25.degree. and 17.25.degree., and the constant C lies in a range from 12.degree. mm to 13.degree. mm.