Valve cover extension tube with integrated sensor

Patent metadata

Field	Value
Publication number	US-10590846-B2
Application number	US-201715467506-A
Country	US
Kind code	B2
Filing date	Mar 23, 2017
Priority date	Mar 23, 2017
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

A tube assembly for monitoring a fluid dispensed into a fluid fill port is disclosed. The tube assembly may include a tube body disposed between a first and second open end. A locking portion including a circumferential groove may be defined adjacent to the first open end and a fill portion may be defined at the second open end of the tube body. An aperture may extend through an outer surface of the tube body and a sensor may be inserted into the aperture such that at least a portion of the sensor is positioned within the interior portion of the tube body. The sensor may be configured to monitor at least one fluid characteristic of the fluid that is dispensed into the tube assembly and flows into the fluid fill port.

First claim

What is claimed is:

1. A tube assembly for attaching to a fluid fill port, the tube assembly comprising:
a tube body extending between a first open end and a second open end;
a tube attachment portion formed at the first open end, wherein the tube attachment portion of the tube body is inserted into the fluid fill port and the first open end is aligned with and coupled to the fluid fill port;
a fill portion defined at the second open end of the tube body, the fill portion is spaced an axial distance away from the tube attachment portion;
a removable cap configured to be secured onto the second open end and cover the fill portion;
an aperture formed in the tube body, the aperture located between the first open end and the second open end and the aperture configured to extend from an outer surface of the tube body into an interior portion of the tube body;
a sensor inserted through the aperture, wherein at least a portion of the sensor is positioned within the interior portion of the tube body, and wherein the sensor is configured to monitor at least one fluid characteristic of a fluid that is dispensed into the fill portion and flows through the interior portion of the tube body into the fluid fill port; and
a guttering structure positioned within the interior portion of the tube body and defining an internal fluid flow pathway of the fluid dispensed into the fill portion, the guttering structure including a closed region disposed between at least one opening, the closed region being tilted within the interior portion of the tube body to direct the internal fluid flow pathway such that at least a portion of the fluid dispensed into the fill portion flows past the sensor.

2. The tube assembly of claim 1 , wherein the tube attachment portion includes a chamfer formed around the first open end, wherein the chamfer is configured to mate with a corresponding sealing surface formed within the fluid fill port and the chamfer and the corresponding sealing surface create a fluid tight seal when the first open end of the tube body is inserted into the fluid fill port.

3. The tube assembly of claim 1 , wherein the tube attachment portion further includes an annular groove formed into the outer surface of the tube body, the annular groove is formed interior to the first open end and configured to mate with the fluid fill port to couple the tube body to the fluid fill port.

4. The tube assembly of claim 1 , further comprising a cap attachment portion, wherein the cap attachment portion includes a flange that extends radially outward from the second open end, and wherein the flange is configured to mate with the removable cap to securely position the removable cap and cover the second open end of the tube body.

5. The tube assembly of claim 4 , wherein the flange of the cap attachment portion further includes a flange chamfer formed around the second open end, and wherein the flange chamfer is configured to sealingly engage with the removable cap to form a fluid tight seal.

6. The tube assembly of claim 1 , wherein the sensor is communicably coupled to an electronic controller, wherein the sensor transmits a sensor data set to the electronic controller, and wherein the electronic controller is programmed to analyze and store the sensor data set.

7. The tube assembly of claim 1 , wherein the sensor comprises at least one of light sensor, a color sensor, a particle sensor, a pH sensor, a flow sensor, and a temperature sensor.

8. The tube assembly of claim 1 , wherein the guttering structure includes a first opening and a second opening, and wherein the first opening and the second opening are configured to direct the internal fluid flow pathway such that at least a portion of the fluid dispensed into the tube assembly flows through the tube body toward the first open end.

9. A tube assembly for extending a fluid fill port of an engine valve cover, the tube assembly comprising:
a tube body extending between a first open end and a second open end;
a tube attachment portion formed at the first open end, wherein the tube attachment portion of the tube body is inserted into the fluid fill port and the first open end is aligned with the fluid fill port and the tube attachment portion is coupled to the engine valve cover;
a fill portion defined at the second open end of the tube body, the fill portion is spaced an axial distance away from the tube attachment portion;
a cap attachment portion formed at the second open end of the tube body, the cap attachment portion configured to secure a removable cap of the engine valve cover that covers the fill portion when not in use;
an aperture formed in the tube body, the aperture located between the first open end and the second open end and the aperture configured to extend from an outer surface of the tube body into an interior portion of the tube body;
a sensor inserted into the aperture, wherein at least a portion of the sensor is positioned within the interior portion of the tube body, and wherein the sensor is configured to monitor at least one fluid characteristic of an engine fluid that is dispensed into the fill portion and flows through the interior portion of the tube body into the engine valve cover; and
a guttering structure formed within the interior portion of the tube body and defining an internal fluid flow pathway within the interior portion of the tube body, the guttering structure including a closed region disposed between at least one opening, the closed region being tilted within the interior portion of the tube body to direct the internal fluid flow pathway such that at least a portion of the fluid dispensed into the fill portion flows past the sensor.

10. The tube assembly of claim 9 , wherein the tube attachment portion includes a chamfer formed around the first open end, wherein the chamfer is configured to mate with a corresponding sealing surface within the fluid fill port, and wherein the chamfer and the corresponding sealing surface create a fluid tight seal when the first open end of the tube body is inserted into the fluid fill port.

11. The tube assembly of claim 9 , wherein the tube attachment portion further includes an annular groove formed in the outer surface of the tube body, wherein the annular groove is formed adjacent to the first open end and configured to mate with a corresponding tube assembly attachment tab formed on the fluid fill port such that the tube assembly is coupled to the engine valve cover.

12. The tube assembly of claim 9 , wherein the cap attachment portion includes a flange that extends radially outward from the second open end, and wherein the flange is configured to mate with the removable cap and securely position the removable cap to cover the second open end of the tube body.

13. The tube assembly of claim 12 , wherein the flange of the cap attachment portion further includes a flange chamfer formed around the second open end, and wherein the flange chamfer is configured to sealingly engage with the removable cap to form a fluid tight seal between the cap attachment portion and the removable cap.

14. The tube assembly of claim 9 , wherein the sensor is communicably coupled to an electronic controller, and wherein the sensor transmits a sensor data set to the electronic controller and the electronic controller is programmed to analyze and store the sensor data set.

15. The tube assembly of claim 9 , wherein the sensor comprises at least one of a light sensor, a color sensor, a particle sensor, a pH sensor, a flow sensor, and a temperature sensor.

16. The tube assembly of claim 9 , wherein the guttering structure is a

Assignees

• Caterpillar Inc

Inventors

• Vericker David A
• Spengler Philip C

Classifications

• F01M11/12

  concerning lubricant level · CPC title

• F02B77/083

  relating to maintenance, e.g. diagnostic device (relating to lubrication F01M11/10) · CPC title

• F01M2011/14

  for indicating the necessity to change the oil · CPC title

• F02B77/08 Primary

  Safety, indicating, or supervising devices (thermal insulation F02B77/11; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00) · CPC title

• F01M2011/0491

  Filing cap with special features · CPC title