Fluid nozzle

Patent metadata

Field	Value
Publication number	US-9718167-B2
Application number	US-201514602850-A
Country	US
Kind code	B2
Filing date	Jan 22, 2015
Priority date	Jan 27, 2014
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

A fluid nozzle includes a nozzle chip that includes a through hole having an inlet port from which a fluid supplied to the fluid nozzle is introduced and an outlet port from which the introduced fluid is ejected; and a base metal member that supports the nozzle chip embedded in a rear portion of the base metal member. The fluid nozzle receives the fluid supplied to the rear portion from the inlet port and ejects the fluid from the outlet port. An exposed portion of the base metal member is covered with a ceramic coating so that the base metal member does not touch the fluid.

First claim

What is claimed is:

1. A fluid nozzle, comprising:
a nozzle chip made of a mineral crystal having a Mohs hardness of 9 or higher and including a through hole having an inlet port from which a fluid supplied to the fluid nozzle is introduced and an outlet port from which the introduced fluid is ejected,
a base metal member that supports the nozzle chip embedded in a rear portion of the base metal member, and
a ceramic coating layer covering an exposed portion of the base metal member so that the base metal member does not come into contact with the fluid, covering an area including a boundary portion in the rear portion in which the base metal member and the nozzle chip are in contact with each other, and covering a peripheral portion of the nozzle chip,
wherein the fluid nozzle receives the fluid supplied to the rear portion from the inlet port and ejects the fluid from the outlet port.

2. The fluid nozzle according to claim 1 , wherein the ceramic coating is a titanium nitride coating or a titanium aluminum nitride coating.

3. The fluid nozzle according to claim 1 ,
wherein the base metal member includes a base portion and a sintered metal portion embedded in the base portion,
wherein the sintered metal portion has an annular shape so as to surround a circumferential portion of the nozzle chip, and
wherein the sintered metal portion fixes the nozzle chip to the base portion.

4. The fluid nozzle according to claim 3 , wherein the sintered metal portion is made of nickel or an alloy containing nickel as a main component.

5. The fluid nozzle according to claim 1 , wherein the ceramic coating is a titanium nitride coating or a titanium aluminum nitride coating.

6. The fluid nozzle according to claim 1 ,
wherein the base metal member includes a base portion and a sintered metal portion embedded in the base portion,
wherein the sintered metal portion has an annular shape so as to surround a circumferential portion of the nozzle chip, and
wherein the nozzle chip is fixed to the base portion by sintering the sintered metal portion.

7. The fluid nozzle according to claim 6 , wherein the sintered metal portion is made of nickel or an alloy containing nickel as a main component.

8. The fluid nozzle according to claim 2 ,
wherein the base metal member includes a base portion and a sintered metal portion embedded in the base portion,
wherein the sintered metal portion has an annular shape so as to surround a circumferential portion of the nozzle chip, and
wherein the nozzle chip is fixed to the base portion by sintering the sintered metal portion.

9. The fluid nozzle according to claim 8 , wherein the sintered metal portion is made of nickel or an alloy containing nickel as a main component.

Assignees

• Sugino Mach

Inventors

• Ihara Minoru
• Kanemitsu Masanori
• Ogura Takahiko

Classifications

• B05B1/10

  in the form of a fine jet, e.g. for use in wind-screen washers · CPC title

• B24C5/04 Primary

  Nozzles therefor (nozzles in general B05B) · CPC title

• B26F3/004

  by means of a fluid jet (methods for use of abrasive blasting for cutting B24C1/045; guns for abrasive fluid jets B24C5/02; perforating by non-mechanical means, e.g. by fluid jet B26F1/26) · CPC title

• B05B15/14

  Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts · CPC title