Self-retaining oil nozzle

Patent metadata

Field	Value
Publication number	US-9939107-B2
Application number	US-201615252934-A
Country	US
Kind code	B2
Filing date	Aug 31, 2016
Priority date	Aug 31, 2016
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

An oil nozzle assembly includes a nozzle body and a nozzle insert. The nozzle body includes a main portion, a tip portion, a collar, and a lip. The tip portion is connected to the main portion. The collar is positioned at an interface between the main portion and the tip portion. The lip extends radially outward from the tip portion and includes an outer diameter. The nozzle insert includes a sleeve, an endwall connected to the sleeve, an orifice, and a retention element. The orifice is disposed in the endwall and is fluidly connected to the tip portion of the nozzle body. The retention element extends radially inward from the sleeve. A portion of the retention element includes an inner diameter that is less than the outer diameter of the lip.

First claim

The invention claimed is:

1. An oil nozzle assembly comprising:
a nozzle body comprising:
a main portion;
a tip portion connected to the main portion, the tip portion including a lip that has an outer diameter; and
a collar positioned at an interface between the main portion and the tip portion;

a nozzle insert comprising:
a sleeve;
an endwall connected to the sleeve;
a plurality of compliant features extending from the sleeve in an axial direction from the sleeve in a direction opposite from the endwall, wherein the plurality of compliant features is compressed between the collar of the nozzle body and the sleeve of the nozzle insert;
an orifice disposed in the endwall, wherein the orifice is fluidly connected to the tip portion of the nozzle body; and
a retention element extending radially inward from the sleeve, wherein a portion of the retention element includes an inner diameter that is less than the outer diameter of the lip, and wherein the retention element extends less than a full circumference of the sleeve.

2. The oil nozzle assembly of claim 1 , further wherein the nozzle insert is disposed onto the tip portion of the nozzle body such that the lip of the tip portion prevents axial displacement of the retention element in a direction towards an end of the tip portion of the nozzle body that is opposite of the main portion.

3. The oil nozzle assembly of claim 1 , wherein the tip portion of the nozzle body includes a channel for receiving the retention element of the nozzle insert.

4. The oil nozzle assembly of claim 1 , wherein the plurality of compliant features exerts a spring force onto the collar of the nozzle body biasing the nozzle insert in a direction towards an end of the tip portion of the nozzle body.

Assignees

• United Technologies Corp

Inventors

• Smedresman Adam G
• Yuen Yuk-Kwan Brian

Classifications

• F01D25/16

  Arrangement of bearings; Supporting or mounting bearings in casings (bearings per se F16C) · CPC title

• F01D25/18

  Lubricating arrangements (of machines or engines in general F01M) · CPC title

• F05D2260/98

  Lubrication · CPC title

• F16N2210/02

  Turbines · CPC title

• F16N2021/005

  Modular units · CPC title