KR0182110B1 - A supply flow control of oil jet for a piston cooling - Google Patents

A supply flow control of oil jet for a piston cooling Download PDF

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Publication number
KR0182110B1
KR0182110B1 KR1019960055739A KR19960055739A KR0182110B1 KR 0182110 B1 KR0182110 B1 KR 0182110B1 KR 1019960055739 A KR1019960055739 A KR 1019960055739A KR 19960055739 A KR19960055739 A KR 19960055739A KR 0182110 B1 KR0182110 B1 KR 0182110B1
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KR
South Korea
Prior art keywords
piston
oil
valve
supply flow
heater
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KR1019960055739A
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Korean (ko)
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KR19980037049A (en
Inventor
민병순
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박병재
현대자동차주식회사
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Priority to KR1019960055739A priority Critical patent/KR0182110B1/en
Publication of KR19980037049A publication Critical patent/KR19980037049A/en
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Publication of KR0182110B1 publication Critical patent/KR0182110B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • 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
    • F01M1/00—Pressure lubrication
    • F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P2007/146—Controlling of coolant flow the coolant being liquid using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2025/00—Measuring
    • F01P2025/60—Operating parameters
    • F01P2025/64—Number of revolutions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/18—Heater
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature

Abstract

본 발명의 목적은 오일온도 및 엔진 운전 조건에 따라 오일제트로 공급되는 유량을 조절하여 피스톤 냉각온도의 최적화를 도모한 피스톤 냉각을 위한 오일제트용의 공급유량조절장치를 제공하는데 있다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a supply flow regulating device for oil jets for cooling a piston by adjusting the flow rate of oil supplied to the oil jets according to the oil temperature and engine operating conditions.

상기한 목적을 달성하기 위해 본 발명은In order to achieve the above object,

피스톤의 냉각을 위해 오일제트로부터 분사되는 오일량의 공급을 조절하는 공급유량조절장치에 있어서,A supply flow regulating device for regulating the supply of an amount of oil injected from an oil jet for cooling of a piston,

오일의 유출입구(3)(4)와 밸브시트(5)를 갖는 케이스(6)와;A case 6 having an oil outlet port 3 (4) and a valve seat 5;

상기 밸브시트(5)로부터 밀착 또는 이격되므로써 유로를 개폐하는 피스톤밸브(7)와;A piston valve (7) for opening or closing the passage by being in contact with or spaced from the valve seat (5);

온도에 반응하여 팽창 및 수축하므로써 상기 피스톤밸브(7)를 작동하는 왁스체(9)와;A wax body (9) for operating said piston valve (7) by expanding and contracting in response to temperature;

상기 왁스체(9)를 가열하기 위한 히터(11)와;A heater 11 for heating the wax body 9;

엔진 회전수 정보에 비례하여 상기 히터(11)의 가열정도를 제어하는 전자제어장치(2)와; 를 포함하여 구성되는 것을 요지로 하고 있다.An electronic control unit (2) for controlling the degree of heating of the heater (11) in proportion to information on the number of revolutions of the engine; The present invention relates to an image forming apparatus.

Description

피스톤 냉각을 위한 오일제트용의 공급유량조절장치Feed flow regulator for oil jets for piston cooling

본 발명은 피스톤의 온도를 적정하게 유지시키기 위한 오일제트용의 공급유량조절장치에 관한 것이다.The present invention relates to a supply flow regulating device for an oil jet for properly maintaining the temperature of a piston.

가솔린 및 디젤엔진에서 피스톤의 냉각을 위하여 오일을 분사하는 오일제트를 구비하고 있는데 도 3 에 도시하는 것과같이 오일팬(20)내에 수용되어 있는 오일은 오일펌프(21)로 퍼올려져 크랭크축 베어링부(22)나 캠축과 밸브트레인계(23) 및 오일제트(24)로 공급된다.The oil contained in the oil pan 20 is pumped up by the oil pump 21 as shown in FIG. 3, so that the crankshaft bearing The valve 22, the camshaft, the valve tray 23, and the oil jet 24. [

그런데 피스톤의 냉각효율은 공급되는 오일의 양 및 온도에 의존하므로 오일제트(24)로부터 공급되는 오일은 유량조절밸브(25)를 거쳐 공급되어지게 된다.However, since the cooling efficiency of the piston depends on the amount and temperature of the supplied oil, the oil supplied from the oil jet 24 is supplied through the flow control valve 25.

상기한 유량조절밸브(25)는 도 4 에 도시하는 것과같이 입구부(26)에 작용하는 유압에 의해 피스톤(27)을 이동시켜 출구부(28)의 열림정도가 조절되는 것이어서 오일의 유량조정만이 가능할 뿐 오일온도에 따른 유량의 가감조절이 불가능하여 피스톤의 과냉 또는 과열 등을 일으켜 피스톤의 적정 온도 유지가 곤란하다는 문제점이 있다.4, the flow control valve 25 controls the degree of opening of the outlet 28 by moving the piston 27 by the hydraulic pressure acting on the inlet 26, It is impossible to adjust the flow rate depending on the oil temperature, which causes over-cooling or over-heating of the piston, which makes it difficult to maintain the proper temperature of the piston.

이에따라 도 5 와 6 도에 도시하는 것과같이 오일온도가 증가할 때에는 피스톤 냉각을 위한 필요유량이 증가되나 실제유량은 이보다 낮게 공급이 유지되며 엔진의 회전수가 증가할 때에도 피스톤 냉각을 위한 필요유량이 비례적으로 증가하나 실제유량은 오일펌프 구동에 의해 결정되므로 이를 반영하지 못한채 필요량보다 많거나(저속구간) 필요량보다 적은(고속구간) 현상이 나타나 엔진의 과냉 및 과열의 원인이 되고 있다.As shown in FIGS. 5 and 6, when the oil temperature is increased, the required flow rate for cooling the piston is increased. However, the actual flow rate is kept lower than this and the required flow rate for cooling the piston is proportional However, the actual flow rate is determined by driving the oil pump. Therefore, the actual flow rate does not reflect this, and the phenomenon of overcooling and overheating of the engine is caused by the phenomenon that is higher than the required amount (low speed section) and less than the required amount (high speed section).

이에 본 발명은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는바는 오일온도 및 엔진 운전 조건에 따라 오일제트로 공급되는 유량을 조절하여 피스톤 냉각온도의 최적화를 도모한 피스톤 냉각을 위한 오일제트용의 공급유량조절장치를 제공하는데 있다.SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide an oil jet pump for cooling a piston, which optimizes a cooling temperature of a piston by adjusting a flow rate of oil supplied to the oil jet, And to provide a supply flow rate regulating device for the supply flow.

상기한 목적을 달성하기 위해 본 발명은In order to achieve the above object,

피스톤의 냉각을 위해 오일제트로부터 분사되는 오일량의 공급을 조절하는 공급유량조절장치에 있어서,A supply flow regulating device for regulating the supply of an amount of oil injected from an oil jet for cooling of a piston,

오일의 유출입구와 밸브시트를 갖는 케이스와;A case having an outlet port for the oil and a valve seat;

상기 밸브시트로부터 밀착 또는 이격되므로써 유로를 개폐하는 피스톤밸브와;A piston valve that opens or closes the passage by being in contact with or spaced from the valve seat;

온도에 반응하여 팽창 및 수축하므로써 상기 피스톤밸브를 작동하는 왁스체와;A wax body for operating said piston valve by expanding and contracting in response to temperature;

상기 왁스체를 가열하기 위한 히터와;A heater for heating the wax body;

엔진 회전수 정보에 비례하여 상기 히터의 가열정도를 제어하는 전자제어장치와; 를 포함하여 구성되는 것을 요지로 하고 있다.An electronic control device for controlling a degree of heating of the heater in proportion to information on the number of revolutions of the engine; The present invention relates to an image forming apparatus.

도 1 은 본 발명에 의한 피스톤 냉각을 위한 오일제트용의 공급유량조절장치를 나타내는 도면BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a supply flow rate regulating device for oil jets for cooling a piston according to the present invention; FIG.

도 2 는 본 발명의 작동을 나타내는 블록도Figure 2 is a block diagram illustrating the operation of the present invention.

도 3 과 도 4 는 종래기술Figs. 3 and 4 show the prior art

도 5 와 도 6 은 오일온도 및 엔진회전수와 공급유량의 관계를 나타내는 그래프5 and 6 are graphs showing the relationship between the oil temperature, the engine speed and the supply flow rate

*도면의 주요부분에 대한 부호의 설명DESCRIPTION OF THE REFERENCE NUMERALS

1 : 유량조절밸브 2 : 전자제어장치1: Flow control valve 2: Electronic control device

3 : 유입구 4 : 출구3: Inlet 4: Outlet

5 : 밸브시트 6 : 케이스5: valve seat 6: case

7(7a,7b) : 피스톤밸브 8 : 실린더7 (7a, 7b): piston valve 8: cylinder

9 : 왁스체 10 : 리턴스프링9: wax body 10: return spring

11 : 히터 12 : 엔진회전수검출센서11: heater 12: engine speed sensor

13 : 릴레이스위치13: Relay switch

이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the structure and operation of the present invention will be described with reference to the accompanying drawings.

도 1 은 본 발명에 의한 피스톤 냉각을 위한 오일제트용 유량조절 장치이며 도 2 는 본 발명의 작동을 나타내는 블록도로서 본 발명의 전체구성은 유량조절밸브(1)와 유량조절밸브(1)를 제어하기 위한 전자제어장치(2)로 구성된다.2 is a block diagram showing the operation of the present invention. The entire configuration of the present invention is a flow control valve 1 and a flow control valve 1 And an electronic control unit 2 for controlling the electronic control unit.

유량조절밸브(1)는 오일이 유입되어 나가는 유출입구(3)(4)와 밸브시트(5)를 갖는 케이스(6), 상기 밸브시트(5)로부터 이격되거나 또는 밀착되어 유로를 개폐하며 또한 이격정도에 따라 오일흐름량을 조절하는 밸브체(7a)와 실린더(8)내에 이동가능하게 수용되는 피스톤(7b)이 단일체로 형성된 H자 형상의 피스톤 밸브(7)와, 상기 실린더(8)내에 충진되어 팽창 및 수축에 의해 상기 피스톤 밸브(7)를 움직이는 왁스체(9)와, 상기 피스톤 밸브(7)를 폐쇄하는 방향으로 탄발하는 리턴스프링(10)과, 상기 왁스체(9)를 가열하기 위한 히터(11)로 구성된다.The flow control valve 1 is provided with a case 6 having an outflow inlet 3 and a valve seat 5 through which oil flows and a case 6 spaced from or close to the valve seat 5 to open / An H-shaped piston valve 7 formed integrally with a valve body 7a for controlling the amount of oil flow and a piston 7b movably received in the cylinder 8 in accordance with the degree of separation, A wax body 9 which is filled and moves the piston valve 7 by expansion and contraction, a return spring 10 which is resilient in a direction closing the piston valve 7, And a heater 11 for heating.

그리고 상기 히터(11)는 전자제어장치(2)에 의해 가열작동되며 전자제어장치(2)는 엔진회전수 검출센서(12)로부터 검출된 엔진회전수 정보에 비례하여 릴레이 스위치(13)를 단속하므로써 필요한 시간동안 히터(11)에 배터리 전원이 공급되도록 제어하게 된다.The heater 11 is heated by the electronic control unit 2 and the electronic control unit 2 controls the relay switch 13 in proportion to the engine speed information detected from the engine speed detection sensor 12 So that the battery power is supplied to the heater 11 for a necessary time.

본 발명의 작동을 도 2 에 의해 설명하면 다음과 같다.The operation of the present invention will be described with reference to FIG.

유입구(3)를 통해 케이스(6)내부로 유입되는 오일의 온도가 증가하면 왁스체(9)의 온도도 상승하며 이에따라 왁스체(9)가 열팽창하여 피스톤 밸브(7)를 밀어올리므로써 밸브(1)의 개방량을 증대시키게 되며 오일제트로부터 피스톤에 분사되는 오일량은 증대되어지게 된다.The temperature of the wax body 9 increases as the temperature of the oil flowing into the case 6 through the inlet port 3 increases so that the wax body 9 thermally expands and pushes up the piston valve 7, 1) is increased and the amount of oil injected from the oil jet into the piston is increased.

즉 공급되는 오일온도가 높을 때에는 피스톤 냉각을 위해 더 많은량의 오일분사가 필요하므로 밸브(1)의 개폐량이 오일온도에 따라 팽창하는 왁스체(9)에 의해 자동으로 증가하도록 조절되며 오일온도가 떨어져 왁스체(9)가 수축하면 수축량 만큼을 리턴스프링(10)이 늘어나 피스톤 밸브(7)를 후퇴시키게 되므로써 유량을 감소시키게 된다.That is, when the supplied oil temperature is high, since a larger amount of oil injection is required for cooling the piston, the amount of opening and closing of the valve 1 is controlled to automatically increase by the wax body 9 expanding according to the oil temperature, When the wax body 9 shrinks, the return spring 10 is stretched by the amount of shrinkage and the piston valve 7 is retracted, thereby reducing the flow rate.

한편 엔진의 회전수가 높아지면 피스톤이 받는 열적부하도 증가하게 되므로 엔진의 회전수 증가를 감지한 전자제어장치(2)는 릴레이 스위치(13)를 작동하여 히터(11)에 전원을 투입하므로써 왁스체(9)에 열을 공급하게 되며 이에따라 왁스체(9)가 팽창하여 피스톤 밸브(7)를 상승시켜 밸브의 열림량을 증가시키게 되며 오일제트에 공급되는 유량은 증가된다.On the other hand, when the number of revolutions of the engine increases, the thermal load received by the piston also increases. Therefore, the electronic control unit 2, which senses the increase in the number of revolutions of the engine, operates the relay switch 13 to turn on the heater 11, The wax body 9 expands and the piston valve 7 is raised to increase the amount of opening of the valve and the flow rate to be supplied to the oil jet is increased.

이상과 같은 본 발명의 오일제트용의 유량조절장치에 의하면 밸브의 개폐량 제어를 오일온도 및 엔진회전수에 따라 발열이 제어되는 히터에 의해 열팽창되는 왁스체에 의하게 되므로써 엔진의 운전조건에 따라 피스톤의 냉각온도 유지조건을 최적으로 유지할 수 있는 오일분사량의 설정이 가능하여 피스톤의 과냉 또는 과열을 방지하게 되며 이로써 엔진의 성능 및 내구성을 제고하는 효과가 있게된다.According to the flow rate control apparatus for an oil jet according to the present invention, the valve opening / closing amount control is controlled by a wax body that is thermally expanded by a heater whose heat generation is controlled in accordance with the oil temperature and the engine rotation speed, It is possible to set the oil injection amount that can optimally maintain the cooling temperature holding condition of the piston, thereby preventing the piston from overcooling or overheating, thereby improving the performance and durability of the engine.

Claims (4)

피스톤의 냉각을 위해 오일제트로부터 분사되는 오일량의 공급을 조절하는 공급유량조절장치에 있어서, 오일의 유출입구와 밸브시트를 갖는 케이스와; 상기 밸브시트로부터 밀착 또는 이격되므로써 유로를 개폐하는 피스톤밸브와; 온도에 반응하여 팽창 및 수축하므로써 상기 피스톤밸브를 작동하는 왁스체와; 상기 왁스체를 가열하기 위한 히터와; 엔진 회전수 정보에 비례하여 상기 히터의 가열정도를 제어하는 전자제어장치와; 를 포함하여 구성되는 것을 특징으로 하는 피스톤 냉각을 위한 오일제트용의 공급유량조절장치.A supply flow regulating device for regulating the supply of an amount of oil injected from an oil jet for cooling of a piston, the supply flow regulating device comprising: a case having an oil inlet and a valve seat; A piston valve that opens or closes the passage by being in contact with or spaced from the valve seat; A wax body for operating said piston valve by expanding and contracting in response to temperature; A heater for heating the wax body; An electronic control device for controlling a degree of heating of the heater in proportion to information on the number of revolutions of the engine; And a control unit for controlling the supply of the oil to the piston. 제 1 항에 있어서, 상기 왁스체의 수축시 상기 피스톤 밸브를 수축량만큼 복귀시키는 수단은 스프링인 것을 특징으로 하는 피스톤 냉각을 위한 오일제트용의 공급유량조절장치.The apparatus of claim 1, wherein the means for returning the piston valve by a contraction amount when the wax body is contracted is a spring. 제 1 항에 있어서, 상기 전자제어장치는 엔진회전수 검출센서로부터 검출된 회전수 정보에 의해 릴레이스위치를 온·오프 접속하여 상기 히터의 발열을 제어하는 것임을 특징으로 하는 피스톤 냉각을 위한 오일제트용의 공급유량조절장치.The electronic control unit according to claim 1, wherein the electronic control unit controls the heat generation of the heater by connecting the relay switch on and off by the rotation speed information detected by the engine rotation speed detection sensor Of the supply flow regulator. 제 1 항에 있어서, 상기 피스톤 밸브는 상기 밸브시트부를 개폐하는 밸브체와 상기 왁스체의 팽창에 의해 실린더내에서 이동하는 피스톤이 H자 형상의 단일체로 형성된 것임을 특징으로 하는 피스톤 냉각을 위한 오일제트용의 공급유량조절장치.2. The piston according to claim 1, wherein the piston valve comprises a valve body for opening and closing the valve seat portion, and a piston moving in the cylinder by the expansion of the wax body, Supply flow regulating device.
KR1019960055739A 1996-11-20 1996-11-20 A supply flow control of oil jet for a piston cooling KR0182110B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8667983B2 (en) 2010-10-28 2014-03-11 Hyundai Motor Company Relief valve for oil pump

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KR100862790B1 (en) * 2001-12-12 2008-10-13 주식회사 포스코 An over-head tank having pressure accumulation
KR100527703B1 (en) * 2002-10-31 2005-11-09 현대자동차주식회사 An apparatus and a method for control oil jet check valve in diesel engine
KR100569424B1 (en) * 2004-04-22 2006-04-07 현대자동차주식회사 air inhalation system with ER fluid for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8667983B2 (en) 2010-10-28 2014-03-11 Hyundai Motor Company Relief valve for oil pump

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