IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0689365
(1985-01-07)
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발명자
/ 주소 |
- King, Edward T.
- Chui, Granger K.
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출원인 / 주소 |
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대리인 / 주소 |
McDermott, Peter D.May, Roger L.
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인용정보 |
피인용 횟수 :
9 인용 특허 :
4 |
초록
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Apparatus is disclosed for lubrication of the operating components of an internal combustion engine with accelerated heating of the lubricant during engine warmup, comprising (i) a primary circuit for lubricant recirculation including a primary reservoir adapted to receive lubricant drainage from th
Apparatus is disclosed for lubrication of the operating components of an internal combustion engine with accelerated heating of the lubricant during engine warmup, comprising (i) a primary circuit for lubricant recirculation including a primary reservoir adapted to receive lubricant drainage from the engine and a primary conduit adapted to return lubricant to the engine, (ii) means for pumping lubricant through the primary conduit to the engine, (iii) means for preheating the lubricant with heat produced by the engine employing a heat exchanger along the primary conduit, and (iv) an auxiliary lubricant reservoir and a return conduit providing fluid communication for the flow of lubricant from the auxiliary reservoir to the primary reservoir. A valve in the return line is controlled to permit flow of lubricant to the primary reservoir in response to a drop in the primary reservoir lubricant level. Means are provided for selectively diverting lubricant from the primary circuit to the auxiliary reservoir following engine warmup when the temperature of the lubricant in the primary circuit reaches a preselected operating temperature.
대표청구항
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1. An engine lubrication means for recirculating lubricant to an internal combustion engine adapted to be cooled by a cooling fluid, providing both enhanced lubricant capacity and accelerated lubricant heating upon engine startup, said means comprising: (A) a primary lubricant circuit comprising
1. An engine lubrication means for recirculating lubricant to an internal combustion engine adapted to be cooled by a cooling fluid, providing both enhanced lubricant capacity and accelerated lubricant heating upon engine startup, said means comprising: (A) a primary lubricant circuit comprising a primary lubricant reservoir adapted to receive lubricant drainage from said engine and a primary conduit adapted to communicate lubricant from said primary lubricant reservoir to said engine; (B) means for pumping lubricant through said primary conduit from said primary lubricant reservoir to said engine; (C) means for sensing the lubricant level within said primary lubricant reservoir; (D) means for heating said lubricant with heat produced by said engine, comprising a heat exchanger in line with said primary conduit between said primary lubricant reservoir and said engine, said heat exchanger being adapted to receive a flow of heated fluid from said engine; (E) an auxiliary lubricant reservoir; (F) means for communicating lubricant from said auxiliary lubricant reservoir to said primary lubricant reservoir when the lubricant level within said primary lubricant reservoir is below a preselected level, said communicating means being adapted to be actuated by said means for sensing the lubricant level within said primary lubricant reservoir when the lubricant level with said primary lubricant reservoir is below a preselected level; and (G) means for selectively diverting lubricant from said primary circuit to said auxiliary reservoir, said diverting means being adapted to divert lubricant to said auxiliary reservoir when the temperature of lubricant within said primary circuit exceeds a preselected level. 2. The engine lubrication means of claim 1, wherein said engine is adapted to be cooled by a cooling fluid comprising liquid coolant which is recirculated in a cooling system comprising cylinder head water jackets, a radiator adapted to cool said liquid coolant, and a water pump adapted to recirculate said liquid coolant in said cooling system, said heat exchanger being adapted to receive a recirculating flow of said liquid coolant from said engine. 3. The engine lubrication means of claim 1, wherein said heated fluid comprises combustion exhaust gases from said engine. 4. The engine lubrication means of claim 1, wherein said heat exchanger is positioned in said primary conduit between said primary reservoir and said diverting means. 5. The engine lubrication means of claim 1, wherein said heat exchanger is positioned in said primary conduit between said diverting means and said engine. 6. The engine lubrication means of claim 1, wherein said diverting means comprises an auxiliary conduit adapted to communicate lubricant from said primary circuit to said auxiliary lubricant reservoir, a valve adapted when open to permit flow of lubricant from said primary circuit to said auxiliary conduit, and valve operating means for opening and closing said valve comprising means for sensing the temperature of said lubricant in said primary circuit, said valve operating means being adapted to close said valve when said lubricant temperature is below a preselected value and to open said valve when said lubricant temperature is above a preselected value. 7. The engine lubrication means of claim 1, wherein said diverting means comprises an auxiliary conduit adapted to communicate lubricant from said primary circuit to said auxiliary lubricant reservoir, and a thermostatically controlled valve adapted when open to permit flow of lubricant from said primary circuit to said auxiliary circuit, said thermostatically controlled valve being adapted to be closed when the temperature of said lubricant is below a preselected value and to be open when the temperature of said lubricant is above a preselected value. 8. The engine lubrication means of claim 1, wherein said auxiliary lubricant reservoir is separated from said primary lubricant reservoir by a common wall between them and said means for selectively communicating lubricant comprises a gate in said common wall and gate operating means for opening and closing said gate, said means for sensing lubricant level within said primary reservoir being adapted to open said gate when the lubricant level within said primary reservoir is below a preselected level and to close said gate when the lubricant level is above a preselected level. 9. The engine lubrication means of claim 1, wherein said means for selectively communicating lubricant comprises a return conduit adapted to communicate lubricant from said auxiliary lubricant reservoir to said primary lubricant reservoir, a normally closed valve in said return conduit, and return conduit valve operating means for opening and closing said return conduit valve, said return conduit valve operating means being adapted to open said return conduit valve when the lubricant within said primary lubricant reservoir is below a preselected level and to close said return conduit valve when said lubricant level is above a preselected level. 10. The engine lubrication means of claim 9, wherein said means for sensing the lubricant level within said primary lubricant reservoir is adapted to close a switch when said lubricant is below said preselected level to close a primary electrical circuit to actuate a relay switch to close a secondary electrical circuit to actuate said valve operating means to open said return conduit valve. 11. The engine lubrication means of claim 10, wherein said valve operating means comprises a solenoid. 12. The engine lubrication means of claim 1, further comprising means for filtering said lubricant. 13. The engine lubrication means of claim 12, wherein said lubricant filtering means is located in line with said primary conduit between said primary reservoir and said heat exchanger. 14. The engine lubrication means of claim 13, wherein said diverting means communicate line with said primary conduit between said filtering means and said heat exchanger. 15. The engine lubrication means of claim 12, wherein said diverting means comprising an auxiliary conduit adapted to communicate lubricant from said primary circuit to said auxiliary lubricant reservoir, said engine lubrication means further comprising secondary means for filtering said lubricant, said secondary filtering means being located in said auxiliary conduit between said primary circuit and said auxiliary reservoir. 16. An engine lubrication means for recirculating lubricant to an internal combustion engine adapted to be cooled by liquid coolant recirculated in a cooling system comprising cylinder head water jackets, a radiator adapted to cool said liquid coolant, and a water pump adapted to recirculate said liquid coolant in said cooling system, said engine lubrication means comprising, (A) a primary lubricant circuit comprising a primary lubricant reservoir adapted to receive lubricant drainage from said engine and a primary conduit adapted to communicate lubricant from said primary lubricant reservoir to said engine; (B) means for pumping lubricant through said primary conduit from said primary lubricant reservoir to said engine; (C) means for sensing the lubricant level within said primary lubricant reservoir; (D) means for heating said lubricant with heat produced by said engine, comprising a heat exchanger in line with said primary conduit between said pumping means and said engine, said heat exchanger being adapted to receive a recirculating flow of liquid coolant from said engine to raise the temperature of said lubricant as it passes through said heat exchanger when said lubricant is at a lower temperature than said coolant liquid; (E) a primary lubricant filter in said primary conduit between said pumping means and said heat exchanger; (F) an auxiliary lubricant reservoir and a return conduit adapted to communicate lubricant by gravity feed from said auxiliary lubricant reservoir to said primary lubricant reservoir; (G) a normally closed return valve in said return conduit between said auxiliary lubricant reservoir and said primary lubricant reservoir, and return valve operating means comprising a solenoid for opening and closing said return valve, said means for sensing the lubricant level within said primary lubricant reservoir being adapted when said lubricant level is below a preselected level to close a switch to close a primary electrical circuit adapted when closed to acutate a relay switch adapted when actuated to close a secondary electrical circuit adapted when closed to actuate said solenoid to open said return valve; (H) an auxiliary conduit adapted to communicate lubricant from said primary conduit at a location between said primary filter and said heat exchanger to said auxiliary lubricant reservoir; (I) a secondary lubricant filter in said auxiliary conduit between said primary conduit and said auxiliary lubricant reservoir; and (J) means for selectively diverting lubricant from said primary conduit to said auxiliary conduit, said diverting means comprising a thermostatically controlled valve adapted when open to permit flow of lubricant from said primary conduit to said auxiliary conduit, said thermostatically controlled valve being adapted to be closed when the temperature of said lubricant in said primary circuit is below a preselected value and to be open when the temperature is above a preselected value.
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