CA1233084A - Method and system for changing lubricants during uninterrupted engine operation - Google Patents
Method and system for changing lubricants during uninterrupted engine operationInfo
- Publication number
- CA1233084A CA1233084A CA000409625A CA409625A CA1233084A CA 1233084 A CA1233084 A CA 1233084A CA 000409625 A CA000409625 A CA 000409625A CA 409625 A CA409625 A CA 409625A CA 1233084 A CA1233084 A CA 1233084A
- Authority
- CA
- Canada
- Prior art keywords
- engine
- lubricant
- flushing
- reservoir
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/10—Indicating devices; Other safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
- F01M2011/0466—Filling or draining during running
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N33/00—Mechanical arrangements for cleaning lubricating equipment; Special racks or the like for use in draining lubricant from machine parts
- F16N2033/005—Flushing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
A B S T R A C T
A method for rapidly changing lubricants during uninter-rupted engine operation and reducing the residual amount of old lubricant remaining after the change to near zero comprising the steps of circulating a first lubricant from a first reservoir through the engine; flushing the engine in three stages during which stages used lubricant flowing out of the engine is sequential-ly stored and removed, whereas simultaneously new lubricant is injected to the engine; and circulating subsequently new lubricant through the engine from a second reservoir. A system for carrying out the method comprising two oil drums, being mounted on a frame and adapted to be connected to the engine, and further comprising an oil pump and control valves.
A method for rapidly changing lubricants during uninter-rupted engine operation and reducing the residual amount of old lubricant remaining after the change to near zero comprising the steps of circulating a first lubricant from a first reservoir through the engine; flushing the engine in three stages during which stages used lubricant flowing out of the engine is sequential-ly stored and removed, whereas simultaneously new lubricant is injected to the engine; and circulating subsequently new lubricant through the engine from a second reservoir. A system for carrying out the method comprising two oil drums, being mounted on a frame and adapted to be connected to the engine, and further comprising an oil pump and control valves.
Description
~33~
The present invention relates to a method and system for changing lubricants during uninterrupted engine operation.
In engines it is necessary to change the engine lubricant regularly in order to obtain a good engine operation. Further, special engines exist, such as for example test engines which can be used to evaluate fuel efficient lubricants. Such engines are used for example for investigating the effect of different engine lubricants on the fuel consumption of an engine. It will be clear -that in these engines lubricants to be tested are to be changed very often.
The conventional methods of oil changing require stopping the engine, draining the old oil, flushing with new oil, filling with new oil and bringing the engine to the required operating condition(s).
This procedure is time-consuming and is not desirable in many applications in particular in those cases which require a continuously operating engine, for example systems being used for testing purposes, which require many oil changes within a relative-lye short time.
It is therefore an object of the invention -to provide a time-saving method for rapidly changing lubricants during uniter-rutted engine operation. It is another object of the invention -to provide such a method, which can be used in a test engine.
It is still another object of the invention to provide a system for rapidly changing lubricants during uninterrupted engine operation. It is still another object of the invention to provide such a system in order to test lubricants.
The invention therefore provides a method for changing lubricants during uninterrupted engine operation and reducing the residual amount of old lubricant remaining after -the change to near zero comprising the steps of circulating a first lubricant from a first lubricant reservoir -through the engine; -flushing the engine in three stages during which stages used lubricant flowing out of the engine is sequentially stored and removed and new tub-recant is injected to the engine; wherein the first flushing stage consists of directing flushing lubricant from a flushing reservoir to the engine and return lubricant is flowing for a certain time period from the engine to the said first reservoir, and wherein the second flushing stage consists of directing flushing lubricant from the engine to the said flushing reservoir for a flushing cycle of a certain time period and the said first reservoir is removed and a second lubricant reservoir is connected, and wherein the third, flushing stage consists of directing new lubricant from the said second reservoir to the engine and return lubricant from the engine is flowing for a certain time period to the said flush-in reservoir; and circulating subsequently new lubricant through the engine from the said second reservoir.
The invention also provides a system for carrying out the method comprising two oil drums mounted on a frame and adapted to be connected to the engine, and further comprising an oil pump and control valves.
The invention will now be described by way of example in more detail with reference to the accompanying drawings, in which Figure 1-5 represent schematically oil flow diagrams, indicating the oil flow in the several oil-change stages.
With reference now to Figure 1-5 of the drawings the I, - pa -operation of the system is as follows. In all figures the same reference numbers have been used.
The system comprises two reservoirs r for example oil drums, 1 and 2 respectively, an external oil pump 3 and several control valves (12-15). All means are mounted on a frame and are connected to the engine in any suitable way.
It will be clear to those skilled in the art that the connection of the relevant drums to the engine can be carried out by opening and closing the relevant valves.
The drum 1 contains the first lubricant A and drum 2 the flushing oil B. Each of the drums are fitted with suitable shut-off valves 4 and 5 respectively to prevent oil spillage during installation and removal. A vent-pipe 6 may also be installed as a safeguard against pressurizing the oil drums. Flexible hoses 7 are used to assure sufficient flow of oil and to connect drums and engine to the oil-changer-system. Oil drain valves 8 are fitted on any suitable place on the hoses 7 to permit line draining after a test or flushing cycle.
~233~
The engine has been represented schematically as block 9.
The engine comprises usual components such as an engine oil pump, oil sup, oil cooler, oil filter cap, oil manifold etc.
(not represented for the sake of clarity).
The engine oil pump (not shown) drains oil from the drum and forces it to the engine. Draining of the engine oil pan and oil return flow to the drums is achieved by a pump 3 on the oil changer. An oil pressure control valve 10 may be present in order to shut down the oil pump if high pressure occurs in the I system. To control the flow rate of the pump, a by-pass control valve 11 may also be installed. Oil flow is regulated and directed through valves 12, 13, 14 and 15 respectively. These valves may be solenoid valves. The valve may be operated by a mode selector switch (not shown). The return flow of the oil to 15 the drum can be controlled by electronic timers (not shown).
In the first stage represented schematically in fig. 1 oil "A" circulates through the engine 9 using drum 1 as an external oil sup. Tests such as measuring fuel consumption can be carried out in any way suitable for the purpose (not shown for 20 reasons of clarity).
In a subsequent first flush stage represented schematic gaily in fig. 2 the engine receives flushing oil "B" from the second drum 2, but return oil from the engine continues to flow for a certain time period, for example 15 seconds, back to drum 25 1.
In a subsequent second flush stage represented schematic gaily in fig. 3 the flushing oil "B" return flow from the engine is directed to the drum 2 for a flushing cycle of a certain time period, for example half an hour. In this stage 30 the drum 1 is removed and the connecting lines drained and a new oil drum 1' comprising oil B is connected to the oil changer stand.
In a subsequent third flush stage represented schematic gaily in fig. 4 drum 1' supplies the engine with oil "B", but _ 4 _ ~Z33~4 return oil from the engine continues to flow for a certain time period, for example 15 seconds, back to drum 2.
In a subsequent stage represented schematically in fig. 5 oil "B" circulates through the engine and drum 1'. During this stage measurements such as for example fuel consumption tests can be carried out again, if desirable. In the course of this stage, drum 2 is removed from the oil changer stand and the connecting lines drained. Drum 2 is replaced with a new drum 2' containing oil "C" and the whole procedure can be repeated, if desirable.
It will be appreciated that the device adapted to indicate the effect of lubricants on fuel economy can be any device suitable for the purpose. Such a device measures engine speed, load and fuel consumption during the test period in any suit-able way and its results are represented.
It will further be appreciated that the oil change method and device of the invention can be used in diesel fueled as well as in gasoline fueled test engines.
It will be clear to those skilled in the art that any valves and oil pumps suitable for the purpose can be used.
Various modifications of the invention will become Papa-rent to those skilled in the art from the foregoing description and accompanying drawing. Such modifications are intended to fall within the scope of the appended claims.
The present invention relates to a method and system for changing lubricants during uninterrupted engine operation.
In engines it is necessary to change the engine lubricant regularly in order to obtain a good engine operation. Further, special engines exist, such as for example test engines which can be used to evaluate fuel efficient lubricants. Such engines are used for example for investigating the effect of different engine lubricants on the fuel consumption of an engine. It will be clear -that in these engines lubricants to be tested are to be changed very often.
The conventional methods of oil changing require stopping the engine, draining the old oil, flushing with new oil, filling with new oil and bringing the engine to the required operating condition(s).
This procedure is time-consuming and is not desirable in many applications in particular in those cases which require a continuously operating engine, for example systems being used for testing purposes, which require many oil changes within a relative-lye short time.
It is therefore an object of the invention -to provide a time-saving method for rapidly changing lubricants during uniter-rutted engine operation. It is another object of the invention -to provide such a method, which can be used in a test engine.
It is still another object of the invention to provide a system for rapidly changing lubricants during uninterrupted engine operation. It is still another object of the invention to provide such a system in order to test lubricants.
The invention therefore provides a method for changing lubricants during uninterrupted engine operation and reducing the residual amount of old lubricant remaining after -the change to near zero comprising the steps of circulating a first lubricant from a first lubricant reservoir -through the engine; -flushing the engine in three stages during which stages used lubricant flowing out of the engine is sequentially stored and removed and new tub-recant is injected to the engine; wherein the first flushing stage consists of directing flushing lubricant from a flushing reservoir to the engine and return lubricant is flowing for a certain time period from the engine to the said first reservoir, and wherein the second flushing stage consists of directing flushing lubricant from the engine to the said flushing reservoir for a flushing cycle of a certain time period and the said first reservoir is removed and a second lubricant reservoir is connected, and wherein the third, flushing stage consists of directing new lubricant from the said second reservoir to the engine and return lubricant from the engine is flowing for a certain time period to the said flush-in reservoir; and circulating subsequently new lubricant through the engine from the said second reservoir.
The invention also provides a system for carrying out the method comprising two oil drums mounted on a frame and adapted to be connected to the engine, and further comprising an oil pump and control valves.
The invention will now be described by way of example in more detail with reference to the accompanying drawings, in which Figure 1-5 represent schematically oil flow diagrams, indicating the oil flow in the several oil-change stages.
With reference now to Figure 1-5 of the drawings the I, - pa -operation of the system is as follows. In all figures the same reference numbers have been used.
The system comprises two reservoirs r for example oil drums, 1 and 2 respectively, an external oil pump 3 and several control valves (12-15). All means are mounted on a frame and are connected to the engine in any suitable way.
It will be clear to those skilled in the art that the connection of the relevant drums to the engine can be carried out by opening and closing the relevant valves.
The drum 1 contains the first lubricant A and drum 2 the flushing oil B. Each of the drums are fitted with suitable shut-off valves 4 and 5 respectively to prevent oil spillage during installation and removal. A vent-pipe 6 may also be installed as a safeguard against pressurizing the oil drums. Flexible hoses 7 are used to assure sufficient flow of oil and to connect drums and engine to the oil-changer-system. Oil drain valves 8 are fitted on any suitable place on the hoses 7 to permit line draining after a test or flushing cycle.
~233~
The engine has been represented schematically as block 9.
The engine comprises usual components such as an engine oil pump, oil sup, oil cooler, oil filter cap, oil manifold etc.
(not represented for the sake of clarity).
The engine oil pump (not shown) drains oil from the drum and forces it to the engine. Draining of the engine oil pan and oil return flow to the drums is achieved by a pump 3 on the oil changer. An oil pressure control valve 10 may be present in order to shut down the oil pump if high pressure occurs in the I system. To control the flow rate of the pump, a by-pass control valve 11 may also be installed. Oil flow is regulated and directed through valves 12, 13, 14 and 15 respectively. These valves may be solenoid valves. The valve may be operated by a mode selector switch (not shown). The return flow of the oil to 15 the drum can be controlled by electronic timers (not shown).
In the first stage represented schematically in fig. 1 oil "A" circulates through the engine 9 using drum 1 as an external oil sup. Tests such as measuring fuel consumption can be carried out in any way suitable for the purpose (not shown for 20 reasons of clarity).
In a subsequent first flush stage represented schematic gaily in fig. 2 the engine receives flushing oil "B" from the second drum 2, but return oil from the engine continues to flow for a certain time period, for example 15 seconds, back to drum 25 1.
In a subsequent second flush stage represented schematic gaily in fig. 3 the flushing oil "B" return flow from the engine is directed to the drum 2 for a flushing cycle of a certain time period, for example half an hour. In this stage 30 the drum 1 is removed and the connecting lines drained and a new oil drum 1' comprising oil B is connected to the oil changer stand.
In a subsequent third flush stage represented schematic gaily in fig. 4 drum 1' supplies the engine with oil "B", but _ 4 _ ~Z33~4 return oil from the engine continues to flow for a certain time period, for example 15 seconds, back to drum 2.
In a subsequent stage represented schematically in fig. 5 oil "B" circulates through the engine and drum 1'. During this stage measurements such as for example fuel consumption tests can be carried out again, if desirable. In the course of this stage, drum 2 is removed from the oil changer stand and the connecting lines drained. Drum 2 is replaced with a new drum 2' containing oil "C" and the whole procedure can be repeated, if desirable.
It will be appreciated that the device adapted to indicate the effect of lubricants on fuel economy can be any device suitable for the purpose. Such a device measures engine speed, load and fuel consumption during the test period in any suit-able way and its results are represented.
It will further be appreciated that the oil change method and device of the invention can be used in diesel fueled as well as in gasoline fueled test engines.
It will be clear to those skilled in the art that any valves and oil pumps suitable for the purpose can be used.
Various modifications of the invention will become Papa-rent to those skilled in the art from the foregoing description and accompanying drawing. Such modifications are intended to fall within the scope of the appended claims.
Claims (4)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A method for changing lubricants during uninterrupted engine operation and reducing the residual amount of old lubricant remaining after the change to near zero comprising the steps of circulating a first lubricant from a first lubricant reservoir through the engine; flushing the engine in three stages during which stages used lubricant flowing out of the engine is sequentially stored and removed and new lubricant is injected to the engine;wherein the first flushing stage consists of directing flushing lubricant from a flushing reservoir to the engine and return lubricant is flowing for a certain time period from the engine to the said first reservoir, and wherein the second flushing stage consists of directing flushing lubricant from the engine to the said flushing reservoir for a flushing cycle of a certain time period and the said first reservoir is removed and a second lubricant reservoir is connected, and wherein the third, flushing stage consists of directing new lubricant from the said second reservoir to the engine and return lubricant from the engine is flowing for a certain time period to the said flushing reservoir;
and circulating subsequently new lubricant through the engine from the said second reservoir.
and circulating subsequently new lubricant through the engine from the said second reservoir.
2. The method as claimed in claim 1 wherein the said time period is 15 seconds.
3. The method as claimed in claims 1 or 2 wherein the said flushing cycle is half an hour.
4. A system for carrying out the method of claim 1, wherein the engine is connected through control valves and an oil pump to two oil drums, mounted on a frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000409625A CA1233084A (en) | 1982-08-18 | 1982-08-18 | Method and system for changing lubricants during uninterrupted engine operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000409625A CA1233084A (en) | 1982-08-18 | 1982-08-18 | Method and system for changing lubricants during uninterrupted engine operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1233084A true CA1233084A (en) | 1988-02-23 |
Family
ID=4123429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000409625A Expired CA1233084A (en) | 1982-08-18 | 1982-08-18 | Method and system for changing lubricants during uninterrupted engine operation |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1233084A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993015309A1 (en) * | 1992-01-22 | 1993-08-05 | Tokheim Corporation | Fluid exchanger with fluid reconciliation |
| WO2013025353A1 (en) * | 2011-08-17 | 2013-02-21 | 4 Thought Energy Llc | Cogeneration system with oil and filter change feature |
-
1982
- 1982-08-18 CA CA000409625A patent/CA1233084A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993015309A1 (en) * | 1992-01-22 | 1993-08-05 | Tokheim Corporation | Fluid exchanger with fluid reconciliation |
| US5273085A (en) * | 1992-01-22 | 1993-12-28 | Tokheim Corporation | Fluid exchanger with fluid reconciliation |
| US5586583A (en) * | 1992-01-22 | 1996-12-24 | Tokheim Corporation | Fluid exchanger with fluid reconciliation |
| WO2013025353A1 (en) * | 2011-08-17 | 2013-02-21 | 4 Thought Energy Llc | Cogeneration system with oil and filter change feature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |