Piston cooling jets

Patent metadata

Field	Value
Publication number	US-10731540-B2
Application number	US-201816185490-A
Country	US
Kind code	B2
Filing date	Nov 9, 2018
Priority date	Nov 15, 2017
Publication date	Aug 4, 2020
Grant date	Aug 4, 2020

Abstract

An oil spray system for use in an engine for spraying directly onto a piston or cylinder wall, includes a supply line having at least one nozzle mounted to the supply line and at least one outlet on the nozzle. The system can include a control device. The control device can be mounted to the supply line. The nozzle and/or outlet is configurable to provide a predetermined spray direction or pattern.

First claim

The invention claimed is:

1. An oil spray system for use in an engine, for spraying a stream of oil directly onto a piston or cylinder wall, comprising:
a supply line; and
a plurality of nozzles mounted to the supply line along a length thereof,
wherein each nozzle has a plurality of outlets, wherein at least one of the plurality of nozzles is configured to provide at least one predetermined spray direction or pattern, and wherein each nozzle includes a tapered channel that includes a reduction in flow area between the plurality of outlets.

2. The oil spray system of claim 1 , including a control device mounted to the supply line.

3. The oil spray system of claim 1 , wherein the supply line is a manifold having the plurality of nozzles mounted thereto.

4. The oil spray system of claim 3 , wherein the plurality of nozzles are configured to provide converging and/or diverging spray patterns.

5. The oil spray system of claim 1 , wherein each nozzle includes at least three outlets.

6. The oil spray system of claim 5 , wherein the at least three outlets are configured to provide converging and/or diverging spray patterns.

7. The oil spray system of claim 2 , wherein the control device is positioned between an oil supply and the first of the plurality of nozzles.

8. The oil spray system of claim 1 , wherein each nozzle is an element separate from the supply line and is attached thereto.

9. The oil spray system of claim 1 , wherein a connecting portion between the supply line and each nozzle extends outwardly from the supply line.

10. The oil spray system of claim 9 , wherein the plurality of outlets are formed in each nozzle at different distances from a juncture of the nozzle and the supply line.

11. The oil spray system of claim 2 , wherein the control device is a solenoid valve, a thermostatic valve or a check valve.

12. An oil spray system for use in an engine, for spraying a stream of oil directly onto a piston or cylinder wall, comprising:
a supply line, wherein the supply line is a manifold;
a control device disposed at an end of the manifold; and
a plurality of nozzles mounted to the supply line along a length thereof,
wherein each nozzle has a plurality of outlets disposed in a linear pattern, wherein each nozzle includes a tapered channel, tapering to a reduced flow area from an inlet of the nozzle to an end of the nozzle so that the channel tapers from a first outlet to a second outlet of the plurality of outlets, wherein at least one of the plurality of nozzles is configured to provide at least one predetermined spray direction or pattern, and wherein the plurality of nozzles are configured to provide at least one of converging or diverging spray patterns.

13. The oil spray system of claim 12 , wherein each nozzle is formed as a continuous flow channel.

14. The oil spray system of claim 13 , wherein each nozzle is circular.

15. The oil spray system of claim 1 , including an accumulator.

16. The oil spray system of claim 15 , wherein the accumulator is positioned on the supply line, between a control device and a first nozzle.

17. The oil spray system of claim 1 , wherein the channel tapers from an inlet of the nozzle to an end of the nozzle.

18. The oil spray system of claim 12 , including a control device mounted to the supply line, the control device controlling a supply of oil to the supply line.

Assignees

• Illinois Tool Works

Inventors

• Kuhn Joseph C
• Leon Jesus M
• Mark Dennis M

Classifications

• F01M2001/086

  for lubricating gudgeon pins · CPC title

• F01M2001/083

  for lubricating cylinders · CPC title

• F01M1/16

  Controlling lubricant pressure or quantity (rendering machines or engines inoperative or idling on lubricant pressure failure F01M1/22) · CPC title

• F16N7/34

  Atomising devices for oil (atomising devices in general B05B) · CPC title

• F01M1/08 Primary

  Lubricating systems characterised by the provision therein of lubricant jetting means · CPC title