Fluid supply system

Patent metadata

Field	Value
Publication number	US-2018355771-A1
Application number	US-201616060023-A
Country	US
Kind code	A1
Filing date	Nov 25, 2016
Priority date	Dec 7, 2015
Publication date	Dec 13, 2018
Grant date	—

Abstract

A fluid supply system may include a component and a bypass valve including a valve body arranged in a control channel. The valve body may be adjustable at least between a first position and a second position, the valve body cutting off a fluid channel to the component when in the first position and cutting off a bypass channel bypassing the component when in the second position. The valve body may divide the control channel into a first chamber and a second chamber. The valve body may include a leakage opening connecting the first chamber and the second chamber. The system may also include at least one detection device configured to detect a property of a fluid and transmit the detected property to a control device. The control device may be configured to close a switchable valve arranged in the leakage channel when the detected property reaches a predefined condition.

First claim

1 . A fluid supply system comprising:
a component; a bypass valve including a valve body arranged in a control channel, the valve body being adjustable at least between a first position and a second position, the valve body cutting off a fluid channel to the component when in the first position and cutting off a bypass channel bypassing the component when in the second position; the valve body dividing the control channel into a first chamber and a second chamber, the valve body including a leakage opening connecting the first chamber and the second chamber; a spring element arranged in the second chamber configured to pretension the valve body in the second position; wherein the second chamber connected to a fluid reservoir via a leakage channel; a switchable valve arranged in the leakage channel configured to at least one of i) at least partially open and ii) at least partially close the leakage channel; and at least one detection device configured to detect a property of a fluid and transmit the detected property to a control device, the control device configured to close the switchable valve to block the leakage channel when the detected property reaches a predefined condition; wherein the switchable valve is a solenoid valve; and wherein the valve body is structured as a valve piston including a first opening to the bypass channel on a casing side and a second opening to the fluid channel on the casing side.

2 . The fluid supply system as claimed in claim 1 , wherein the fluid supply system is configured as a lubricant supply system.

3 . The fluid supply system as claimed in claim 1 , wherein the detection device is configured as a temperature detection device and the control device is configured to close the switchable valve when a temperature of the fluid is 117° C. or greater.

4 . The fluid supply system as claimed in claim 1 , wherein the leakage opening is arranged in a floor of the valve piston.

5 . The fluid supply system as claimed in claim 1 , wherein the valve body is composed of at least one of metal and plastic.

6 . The fluid supply system as claimed in claim 1 , wherein the component is configured as one of a cooler device, a transmission device, and a filter device.

7 . An internal combustion engine comprising a fluid supply system including:
a component; a bypass valve including a valve body arranged in a control channel, the valve body being adjustable at least between a first position and a second position, the valve body cutting off a fluid channel to the component when in the first position and cutting off a bypass channel bypassing the component when in the second position, the valve body dividing the control channel into a first chamber and a second chamber, the valve body including a leakage opening connecting the first chamber and the second chamber; a spring element arranged within the second chamber configured to pretension the valve body in the second position; a fluid reservoir connected to the second chamber via a leakage channel; a switchable valve structured as a solenoid valve, arranged in the leakage channel, and configured to at least one of i) at least partially open and ii) at least partially close the leakage channel; and at least one detection device configured to detect a property of a fluid and transmit the detected property to a control device, the control device configured to close the switchable valve to block the leakage channel when the detected property reaches a predefined condition; wherein the valve body is structured as a valve piston having a casing side, the valve piston including a first opening and second opening disposed on the casing side such that first opening is connectable to the bypass channel and the second opening is connectable to the fluid channel.

8 . The internal combustion engine as claimed in claim 7 , wherein the fluid supply system is configured as a lubricant supply system.

9 . The internal combustion engine as claimed in claim 7 , wherein the fluid supply system is configured as an oil supply system.

10 . The internal combustion engine as claimed in claim 7 , wherein the detection device is configured as a temperature detection device and wherein the control device is configured to close the switchable valve when a temperature of the fluid is 117° C. or greater.

11 . The internal combustion engine as claimed in claim 7 , wherein the leakage opening is arranged in a floor of the valve piston.

12 . The internal combustion engine as claimed in claim 7 , wherein the valve body is composed of at least one of metal and plastic.

13 . The internal combustion engine as claimed in claim 7 , wherein the component is configured as one of a cooler device, a transmission device, and a filter device.

14 . The internal combustion engine as claimed in claim 8 , wherein the detection device is configured as a temperature detection device and wherein the control device is configured to close the switchable valve when a temperature of the fluid is 117° C. or greater.

15 . A fluid supply system comprising:
a component; a bypass valve including a valve body and arranged in a control channel, the valve body being adjustable at least between a first position and a second position, the valve body cutting off a fluid channel to the component when in the first position and cutting off a bypass channel bypassing the component when in the second position, the valve body dividing the control channel into a first chamber and a second chamber, the valve body including a leakage opening connecting the first chamber and the second chamber; a spring element arranged within the second chamber configured to pretension the valve body in the second position; a fluid reservoir connected to the second chamber via a leakage channel; and a switchable valve structured as a solenoid valve, arranged in the leakage channel, and configured to at least one of i) at least partially open and ii) at least partially close the leakage channel; and at least one temperature detection device configured to detect a temperature of a fluid and transmit the detected temperature to a control device, the control device configured to close the switchable valve to block the leakage channel when the detected temperature reaches a predefined value; wherein the valve body is structured as a valve piston having a casing side, the valve piston including a first opening and second opening disposed on the casing side such that first opening is connectable to the bypass channel and the second opening is connectable to the fluid channel.

16 . The fluid supply system as claimed in claim 15 , wherein the fluid supply system is configured as a lubricant supply system.

17 . The fluid supply system as claimed in claim 15 , wherein the leakage opening is arranged in a floor of the valve piston.

18 . The fluid supply system as claimed in claim 15 , wherein the valve body is composed of at least one of metal and plastic.

19 . The fluid supply system as claimed in claim 15 , wherein the component is configured as one of a cooler device, a transmission device, and a filter device.

20 . The fluid supply system as claimed in claim 3 , wherein the leakage opening is arranged in a floor of the valve piston.

Assignees

• Mahle Int Gmbh

Inventors

• Ruffet Valentin
• Steinhoff Michael

Classifications

• F04D29/584

  cooling or heating the machine (F04D29/5846, F04D29/5853 take precedence) · CPC title

• F04D19/002

  Axial flow fans · CPC title

• F16N29/02

  for influencing the supply of lubricant · CPC title

• F16H57/0434

  relating to lubrication supply, e.g. pumps; Pressure control · CPC title

• F01M5/00

  Heating, cooling, or controlling temperature of lubricant (arrangement of lubricant coolers in engine cooling system F01P11/08); Lubrication means facilitating engine starting · CPC title