CA1243574A - Starting preheater system of an internal combustion engine - Google Patents
Starting preheater system of an internal combustion engineInfo
- Publication number
- CA1243574A CA1243574A CA000432787A CA432787A CA1243574A CA 1243574 A CA1243574 A CA 1243574A CA 000432787 A CA000432787 A CA 000432787A CA 432787 A CA432787 A CA 432787A CA 1243574 A CA1243574 A CA 1243574A
- Authority
- CA
- Canada
- Prior art keywords
- oil
- engine
- conduit
- internal combustion
- combustion engine
- 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
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Abstract of the Disclosure A starting preheater system of an internal combustion engine comprises a source of heat for heating a lubricating oil in an engine pan, and an oil pump for feeding the oil to a crankcase of the engine, the crankcase being in communi-cation with a pressure oil conduit of a lubrication system of the internal combustion engine, the engine pan accommo-dates an input oil conduit of the oil pump, whereas a pres-sure oil conduit of the oil pump is provided with a plurali-ty of nozzles directed toward bearings of an engine crank-shaft, walls of engine cylinders and tops of pistons. The pressure oil conduit of the oil pump communicates with the pressure oil conduit of the engine lubrication system by way of an additional oil conduit.
Description
~2~3574 Thls Inventlon relates generally to Internal combustlon englnes, and more partlcularly to means for prestart heatlng of Internal combustlon englnes.
The Inventlon can fInd appllcatlon In motor vehlcles powered by diesel englnes and operated In wlnter tlme of year under low temperatures.
Operatlon oF motor vehlcles durlng wlnter and englne startlng at low outslde temperatures requlre that the englne be warmed up for a conslderable length of tlme. Thls Is dlctated by the speclflcs of englne deslgn, as well as by conslderable chan-ges In the physlcal propertles of fuels, lubrlcatlng olls and englne materlals at low temperatures. Therefore, a problem whlch Is yet to be solved Is to speed up heatlng the englne prlor to startlng and reduce the amount of fuel consumed for such a star-tlng.
On the one hand, new types of lubrlcatlng olls have been developed to satlsfy the requlrements posed by low tempera-tures, whlle on the other motor vehlcles Intended for low tempe-rature operatlon are normally eciulpped wlth powerful englne pre-heaters, or means for contlnuously malntalnlng a heated condltlon of the englne durlny parklng. One of posslble ways of ensurlng Z5 easy englne startlng Is to preheat the lubrlcatlng oll before startlng an Internal combustlon englne.
There Is known a prestart heatlng system of an Internal combustlon englne (c.f. U.S. Pat. No. 2,470,972, publIshed May 11, 1949) comprlslng dlsposed In an englne oll pan a source of heat in the form of a heatlng coll to heat the lubrlcatlng oll before englne startlng. Such heatlng enables to reduce resls-tance of the englne crankshaft to turnlng. However, even the thus heated oll fails to pass through all the oll condults of the lubrlcatlon system due to relatlvely small cross-sectlonal areas thereof and formatlon of ol i clogs.
i 3 So Also known Is a startlng preheater system of an Inter-nal combustlon engine (cf. U.S.S.R. Inventor's Certlflcate No.
8Z3610) comprlslng a source of heat for heatlng oll In an englne oll pan, an oll pump for supplylng the lubrlcatlng oll to a crankcase communlcatlng wlth a pressure oll condult of the englne lubrlcatlon system, an Input oll condult of the oll pump provlded wlth a plurallty of nozzles faclng bearlngs of the englne crank-shaft, walls of englne cyllnders and tops of englne plstons.
Although the above system Improves the englne prehea-tlng efflclency,,reduces the amount of fuel consumed for englne startlng and the tIme requlred for preheatlng the englne, effl-clent and unlform preheatlng Is imposslble due to conslderable mass and slze of the englne Parts to be heated. Thls Is espe-clally the case wlth respect Jo connectlon of those englne parts whlch fall to be preheated to a temperature necessary for brlng-lng down reslstance of the crankshaft to turnlng.
The present Inventlon provldes a startlng preheater system of an Internal combustlon englne whlch would enable to Increase the effIclency of englne preheat and reduce the tlme requlred for heatlng parts and unlts located Inslde the englne crankcase.
The Inventlon can fInd appllcatlon In motor vehlcles powered by diesel englnes and operated In wlnter tlme of year under low temperatures.
Operatlon oF motor vehlcles durlng wlnter and englne startlng at low outslde temperatures requlre that the englne be warmed up for a conslderable length of tlme. Thls Is dlctated by the speclflcs of englne deslgn, as well as by conslderable chan-ges In the physlcal propertles of fuels, lubrlcatlng olls and englne materlals at low temperatures. Therefore, a problem whlch Is yet to be solved Is to speed up heatlng the englne prlor to startlng and reduce the amount of fuel consumed for such a star-tlng.
On the one hand, new types of lubrlcatlng olls have been developed to satlsfy the requlrements posed by low tempera-tures, whlle on the other motor vehlcles Intended for low tempe-rature operatlon are normally eciulpped wlth powerful englne pre-heaters, or means for contlnuously malntalnlng a heated condltlon of the englne durlny parklng. One of posslble ways of ensurlng Z5 easy englne startlng Is to preheat the lubrlcatlng oll before startlng an Internal combustlon englne.
There Is known a prestart heatlng system of an Internal combustlon englne (c.f. U.S. Pat. No. 2,470,972, publIshed May 11, 1949) comprlslng dlsposed In an englne oll pan a source of heat in the form of a heatlng coll to heat the lubrlcatlng oll before englne startlng. Such heatlng enables to reduce resls-tance of the englne crankshaft to turnlng. However, even the thus heated oll fails to pass through all the oll condults of the lubrlcatlon system due to relatlvely small cross-sectlonal areas thereof and formatlon of ol i clogs.
i 3 So Also known Is a startlng preheater system of an Inter-nal combustlon engine (cf. U.S.S.R. Inventor's Certlflcate No.
8Z3610) comprlslng a source of heat for heatlng oll In an englne oll pan, an oll pump for supplylng the lubrlcatlng oll to a crankcase communlcatlng wlth a pressure oll condult of the englne lubrlcatlon system, an Input oll condult of the oll pump provlded wlth a plurallty of nozzles faclng bearlngs of the englne crank-shaft, walls of englne cyllnders and tops of englne plstons.
Although the above system Improves the englne prehea-tlng efflclency,,reduces the amount of fuel consumed for englne startlng and the tIme requlred for preheatlng the englne, effl-clent and unlform preheatlng Is imposslble due to conslderable mass and slze of the englne Parts to be heated. Thls Is espe-clally the case wlth respect Jo connectlon of those englne parts whlch fall to be preheated to a temperature necessary for brlng-lng down reslstance of the crankshaft to turnlng.
The present Inventlon provldes a startlng preheater system of an Internal combustlon englne whlch would enable to Increase the effIclency of englne preheat and reduce the tlme requlred for heatlng parts and unlts located Inslde the englne crankcase.
2~ Accordlng to the Inventlon In a startlng preheater system of an Internal combustlon englne comprlslng a source of heat for heatlng a lubrlcatlng oll In an englne oll pan, an oll pump for supplylng the oll to the Interlor of a crankcase com-munlcatlng wlth a pressure oll condult of the englne lubrlcatlon system, an Input oll condult of the oll pump dlsposed In the englne oll pan, and a pressure oll condult of the oll pump havlng a plurallty of nozzles faclng bearlngs of a crankshaft, walls of cyllnders and tops of englne plstons, the pressure oll condult of the oll pump communlcates wlth the pressure oll condult of the englne lubrlcatlon system by way of another oll condult.
~357~
Preferably, the system comprlses two non-return valves one of whlch Is dlsposed In the oll condult, the other - In the pressure oll condult of the englne lubrlcatlon system before It connects wlth sald oll condult downstream of the flow of oll.
The hereln startlng preheater system of an Internal combustlon englne mazes It posslble to substantlally Improve the efflclency of engine preheat In low freezlng temperatures thanks to a more unlform heatlng of parts and unlts of the englne loca-ted Inslde the crankcase. Lubrlcatlng olls have a hlgh thermalcapaclty to actlY,ely transfer heat and thereby reduce reslstance of the crankshaft to ~z435~74 turning and facilitate warring up of co~bvs-tion chambers, which în turn results in a such speed up and efficient en-gine preheating before starting. .he connection of the pres-sure oil condui-t of the oil pup to the pressure oil conduit of the engine lubrication system allows to more uniformly heat -the engine because the hea-ted oil it capable of pene-tra-ting ~lany of the engine parts and units. In addition, such a preheating of the engine lubri¢ation system ensures a longer ~er~ioe life ox the engineO Application of the pro-posed tenting preheater system wakes it possible to start the engine in cold tir~ae of Lear at practically an ambient temperature he invention Jill now be described in greater detail with reference to a specific e~bodi~ent thereon taken in conjunction with the acco~panyi~g draying, the sole ~'igure ox which illustrates a cros~-sec-tional view of a star-ting preheater system of an internal co~bus-tion engine according to the invention A starting preheater system of an internal combustion engine comprises a source 1 of heat fashioned as a heater of any known conventional design generally used ~lith inter-nal co~nbustion diesel engine, the 90urce 1 of hea t iS in-tended to preheat oil 2 in an engine pan 3, or a Gore ef-ficient- heat transfer the engine pan 3 has wins washed over by -the flow of hot gee conveyed trot the source 1 ox heat. the system also col~prises an oil p~np 5 for weeding oil into a crankGase generally indicated by 6~ the engine pan 3 acco~odates an oil intake conduit 7 of the oil pup 5.
~2~3574 the oil pup 5 is driven by an independent electric drive 8 connec-ted to an electric system of the motor vehicle, he engine lubrication sys-te~ fur-ther comprises an oil pulp 9 with a preqsure oil conduit 10~ an oil radia-tor 11 and an oil filter 12.
A pressure oil conduit 13 of the oil pup 5 has outlet openings or nozzles 14, 15 and 16 racing Cain bearings 17 of a crankshaft 18, walls 19 o e cylinders 20, and tops 21 of pis-tons 22 ox the engine. the pressure oil conduit 13 of -the oil pup 5 co~unicate~ with -the pressure oil conduit 10 ox the engine lubrica-tion sys-tem by way ox an oil conduit 23.
he starting prehea-ter sys-te~ is also provided with two non return valves 24 and 25, one of these being posi-tion-ed in the oil conduit 23g -the other one - in the pressure oil condui-t 10 ox -the engine lubrica-tion system before it is joined with the oil conduit 23 downstream of the :Elo~l of oil. the co~unication of the pressure oil condults 10 and 13 ekes -it possible to supply hot oil into the engine lub-rication system -through a main oil line 26 during engine war up which extends the service live of the engine.
he s-tarting prehea-ter s~ste~ of an internal combus-tion engine according to -the invention operates in the fol-lowing manner.
he hea-t souroe 1 act to heat the lubricating oil in -the engine pan 3. hereafter -the independen-t elactric drive 8 is energized to se-t it mo-tion the oil pUlnp 5~ the oil heated -to a -te-nperature of 80 -to 100C enters the in-take oil conduit 7 and then the pressure oil conduit 13 to be led to 4~5~
toe nozzLes 14, 15 and 16. the not oil warms up the main be-arings 17 of the crankshaft l walls l 5~' the cylinders 20 ana the tops 21 ox the pistons 22~
the oil having transIerred the heat is drainea into the engine pan 3 providing a forceful circulat.ion of the oil by means ox the pump 5. this ls accol~panied by that the out-er walls 19 of the cylinders 20 9 the tops 21 of the pistons 20, as well as the outer surfaces of the main bearings are warmed up.
Simultaneously, the pressure produced by the oil pump 5 acts to open the valve 24- whereby the heated oil is con-veyed along the oil conauit 23 via the filter 12 into the main oil line 26 wherefrom it iS distributed to all oil conduits ox the engine lubrication system to warm on the inside all the friction ports. the valve 2~ inched in the pressure oil con-D duit ~3 beYore the point of connection of he oil conduit 23acts to prevent the supply of heated Oil to the oil radiator 11 and the oil p~np 9 of the engine lubrication system.
the .hot oil fea to the interior of the engine provides quick and uniform heating of the iction pairs and elements ox one engine thereby rsducing the resistance to turning, as well as heating the air in the combustion chamber to pa cilitate a reliable burning ox the fuel. josses ox heat to the atmosphere are thus reduced, while the amount ox energy and time required for warming up the engine are brought down to result in fuel sa~i~g and improved efficiency of the mo-tor vehicle.
Subsequent to warming up the engine the oil pump 5 12~3574 stops operation and the engine is star-ked~
Y`~hen -the oil pu~np of the engine lubrication sy~te~n is engaged, -thè hot oil is forcea into -the pressure oil conduit 10 to paæs through the oil coo]ing radiator 11 and -the oil filter 12 -to the friction parts of the crankshaet 18 and B o-ther units ancl parts ox the engine The non-return valve-2~--arranged in -the pressure oil conduit 10 before it join with the oil conduit 23 downstream Oe -the flow o oil act to pre-vet the flow o oil prom entering the oil conduit 23J
~357~
Preferably, the system comprlses two non-return valves one of whlch Is dlsposed In the oll condult, the other - In the pressure oll condult of the englne lubrlcatlon system before It connects wlth sald oll condult downstream of the flow of oll.
The hereln startlng preheater system of an Internal combustlon englne mazes It posslble to substantlally Improve the efflclency of engine preheat In low freezlng temperatures thanks to a more unlform heatlng of parts and unlts of the englne loca-ted Inslde the crankcase. Lubrlcatlng olls have a hlgh thermalcapaclty to actlY,ely transfer heat and thereby reduce reslstance of the crankshaft to ~z435~74 turning and facilitate warring up of co~bvs-tion chambers, which în turn results in a such speed up and efficient en-gine preheating before starting. .he connection of the pres-sure oil condui-t of the oil pup to the pressure oil conduit of the engine lubrication system allows to more uniformly heat -the engine because the hea-ted oil it capable of pene-tra-ting ~lany of the engine parts and units. In addition, such a preheating of the engine lubri¢ation system ensures a longer ~er~ioe life ox the engineO Application of the pro-posed tenting preheater system wakes it possible to start the engine in cold tir~ae of Lear at practically an ambient temperature he invention Jill now be described in greater detail with reference to a specific e~bodi~ent thereon taken in conjunction with the acco~panyi~g draying, the sole ~'igure ox which illustrates a cros~-sec-tional view of a star-ting preheater system of an internal co~bus-tion engine according to the invention A starting preheater system of an internal combustion engine comprises a source 1 of heat fashioned as a heater of any known conventional design generally used ~lith inter-nal co~nbustion diesel engine, the 90urce 1 of hea t iS in-tended to preheat oil 2 in an engine pan 3, or a Gore ef-ficient- heat transfer the engine pan 3 has wins washed over by -the flow of hot gee conveyed trot the source 1 ox heat. the system also col~prises an oil p~np 5 for weeding oil into a crankGase generally indicated by 6~ the engine pan 3 acco~odates an oil intake conduit 7 of the oil pup 5.
~2~3574 the oil pup 5 is driven by an independent electric drive 8 connec-ted to an electric system of the motor vehicle, he engine lubrication sys-te~ fur-ther comprises an oil pulp 9 with a preqsure oil conduit 10~ an oil radia-tor 11 and an oil filter 12.
A pressure oil conduit 13 of the oil pup 5 has outlet openings or nozzles 14, 15 and 16 racing Cain bearings 17 of a crankshaft 18, walls 19 o e cylinders 20, and tops 21 of pis-tons 22 ox the engine. the pressure oil conduit 13 of -the oil pup 5 co~unicate~ with -the pressure oil conduit 10 ox the engine lubrica-tion sys-tem by way ox an oil conduit 23.
he starting prehea-ter sys-te~ is also provided with two non return valves 24 and 25, one of these being posi-tion-ed in the oil conduit 23g -the other one - in the pressure oil condui-t 10 ox -the engine lubrica-tion system before it is joined with the oil conduit 23 downstream of the :Elo~l of oil. the co~unication of the pressure oil condults 10 and 13 ekes -it possible to supply hot oil into the engine lub-rication system -through a main oil line 26 during engine war up which extends the service live of the engine.
he s-tarting prehea-ter s~ste~ of an internal combus-tion engine according to -the invention operates in the fol-lowing manner.
he hea-t souroe 1 act to heat the lubricating oil in -the engine pan 3. hereafter -the independen-t elactric drive 8 is energized to se-t it mo-tion the oil pUlnp 5~ the oil heated -to a -te-nperature of 80 -to 100C enters the in-take oil conduit 7 and then the pressure oil conduit 13 to be led to 4~5~
toe nozzLes 14, 15 and 16. the not oil warms up the main be-arings 17 of the crankshaft l walls l 5~' the cylinders 20 ana the tops 21 ox the pistons 22~
the oil having transIerred the heat is drainea into the engine pan 3 providing a forceful circulat.ion of the oil by means ox the pump 5. this ls accol~panied by that the out-er walls 19 of the cylinders 20 9 the tops 21 of the pistons 20, as well as the outer surfaces of the main bearings are warmed up.
Simultaneously, the pressure produced by the oil pump 5 acts to open the valve 24- whereby the heated oil is con-veyed along the oil conauit 23 via the filter 12 into the main oil line 26 wherefrom it iS distributed to all oil conduits ox the engine lubrication system to warm on the inside all the friction ports. the valve 2~ inched in the pressure oil con-D duit ~3 beYore the point of connection of he oil conduit 23acts to prevent the supply of heated Oil to the oil radiator 11 and the oil p~np 9 of the engine lubrication system.
the .hot oil fea to the interior of the engine provides quick and uniform heating of the iction pairs and elements ox one engine thereby rsducing the resistance to turning, as well as heating the air in the combustion chamber to pa cilitate a reliable burning ox the fuel. josses ox heat to the atmosphere are thus reduced, while the amount ox energy and time required for warming up the engine are brought down to result in fuel sa~i~g and improved efficiency of the mo-tor vehicle.
Subsequent to warming up the engine the oil pump 5 12~3574 stops operation and the engine is star-ked~
Y`~hen -the oil pu~np of the engine lubrication sy~te~n is engaged, -thè hot oil is forcea into -the pressure oil conduit 10 to paæs through the oil coo]ing radiator 11 and -the oil filter 12 -to the friction parts of the crankshaet 18 and B o-ther units ancl parts ox the engine The non-return valve-2~--arranged in -the pressure oil conduit 10 before it join with the oil conduit 23 downstream Oe -the flow o oil act to pre-vet the flow o oil prom entering the oil conduit 23J
Claims
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A starting preheater system of an internal combus-tion engine comprising: a source of heat for heating oil in an engine pan of the internal combustion engine; an oil pump for feeding oil into a crankcase of said internal combustion engine communicating with a pressure oil conduit of the oil lubrication system of said internal combustion engine, said oil pump being arranged to be operated independently of the engine; a first input oil conduit of said oil pump disposed in said engine pan; a second pressure oil conduit of said oil pump having a plurality of nozzles directed toward bearings of a crankshaft, walls of cylinders and tops of pistons of said internal combustion engine;
a third oil conduit adapted to communicate said second pressure oil conduit of said oil pump with said pressure oil conduit of the lubrication system of said internal combustion engine, a first non-return valve disposed in said third oil conduit; and a second non-return valve disposed in said pressure oil conduit of the lubrication system of said internal combustion engine before it joins with said third oil conduit downstream of the flow of oil.
a third oil conduit adapted to communicate said second pressure oil conduit of said oil pump with said pressure oil conduit of the lubrication system of said internal combustion engine, a first non-return valve disposed in said third oil conduit; and a second non-return valve disposed in said pressure oil conduit of the lubrication system of said internal combustion engine before it joins with said third oil conduit downstream of the flow of oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000432787A CA1243574A (en) | 1983-07-19 | 1983-07-19 | Starting preheater system of an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000432787A CA1243574A (en) | 1983-07-19 | 1983-07-19 | Starting preheater system of an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1243574A true CA1243574A (en) | 1988-10-25 |
Family
ID=4125711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000432787A Expired CA1243574A (en) | 1983-07-19 | 1983-07-19 | Starting preheater system of an internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1243574A (en) |
-
1983
- 1983-07-19 CA CA000432787A patent/CA1243574A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |