KR20000044014A - Injector unit having two-fold spraying angle - Google Patents
Injector unit having two-fold spraying angle Download PDFInfo
- Publication number
- KR20000044014A KR20000044014A KR1019980060457A KR19980060457A KR20000044014A KR 20000044014 A KR20000044014 A KR 20000044014A KR 1019980060457 A KR1019980060457 A KR 1019980060457A KR 19980060457 A KR19980060457 A KR 19980060457A KR 20000044014 A KR20000044014 A KR 20000044014A
- Authority
- KR
- South Korea
- Prior art keywords
- fuel
- injector unit
- piston
- outer cylinder
- spraying
- 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.)
- Abandoned
Links
- 238000005507 spraying Methods 0.000 title abstract 10
- 239000000446 fuel Substances 0.000 claims abstract description 41
- 238000002347 injection Methods 0.000 claims description 34
- 239000007924 injection Substances 0.000 claims description 34
- 230000001939 inductive effect Effects 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
- F02M61/1813—Discharge orifices having different orientations with respect to valve member direction of movement, e.g. orientations being such that fuel jets emerging from discharge orifices collide with each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/08—Injectors peculiar thereto
- F02M45/086—Having more than one injection-valve controlling discharge orifices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
본 발명은 인젝터 유닛의 연료분사시기에 따라 연료분사각을 가변화시킬 수 있도록 하여 연료분사시기가 지각되었을 때 노즐로부터 분사된 연료의 일부가 연소실 내로 들어가지 못하고 실린더 라이너 쪽으로 분사되는 것을 막아 압축행정 말기에 피스톤 상면에서 폭발하여 실린더 라이너에 충격을 주어 실린더 라이너의 크랙 발생을 방지할 수 있도록 하는 이중 분사각을 갖는 인젝터 유닛에 관한 것이다.According to the present invention, the fuel injection angle can be varied according to the fuel injection timing of the injector unit, thereby preventing a part of the fuel injected from the nozzle from being injected into the combustion chamber and into the cylinder liner when the fuel injection timing is late. It relates to an injector unit having a double injection angle to explode at the end of the piston to impact the cylinder liner to prevent cracking of the cylinder liner.
도 1은 종래 인젝터 유닛(50)을 개략적으로 도시한 것으로, 인젝터 유닛(50)을 구성하는 분사노즐(52)을 통하여 연료라인(54)으로 유입된 연료가 분사된다.FIG. 1 schematically illustrates a conventional injector unit 50. The fuel introduced into the fuel line 54 is injected through the injection nozzle 52 constituting the injector unit 50.
도 1과 같이 특정한 연료분사시기가 진각일 때에는 분사노즐(52)로부터 분사되는 연료는 피스톤(100)의 연소실(102)로 정상적 유입이 이루어지게 된다.As shown in FIG. 1, when the specific fuel injection timing is advanced, the fuel injected from the injection nozzle 52 is normally introduced into the combustion chamber 102 of the piston 100.
그러나, 도 2와 같이 연료분사시기가 지각되면 도 1과는 달리 분사노즐(52)로부터 피스톤(100)의 위치가 떨어지게 되어, 분사노즐(52)로부터 분사되는 연료 전부가 연소실(102)로 들어가지 못하고 그중 일부의 연료가 피스톤(100)의 상면(104)을 향해 분사되게 된다.However, when the fuel injection timing is delayed as shown in FIG. 2, unlike FIG. 1, the position of the piston 100 is dropped from the injection nozzle 52, so that all the fuel injected from the injection nozzle 52 enters the combustion chamber 102. Some of the fuel does not go and is injected toward the upper surface 104 of the piston (100).
이와 같은 경우에 연료의 연소가 피스톤(100)의 상면(104)에서 이루어져 화염에 의해 실린더 라이너(106)는 심한 열충격을 받게 되고, 이는 실린더 라이너 크랙의 원인으로 작용하게 되어 엔진의 내구성을 저하시키게 된다.In such a case, the combustion of fuel takes place on the upper surface 104 of the piston 100, and the flame causes the cylinder liner 106 to be severely thermally shocked, which causes the cylinder liner cracking, thereby lowering the durability of the engine. do.
본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위해 창안된 것으로, 연료분사시기가 지각되었을 때 연료분사각을 가변시켜 분사노즐로부터 분사되는 연료가 피스톤의 연소실로 유입되도록 하여 종래와 같은 실린더 라이너의 열충격을 방지하여 엔진의 내구성을 향상시킬 수 있도록 하는 이중 분사각을 갖는 인젝터 유닛을 제공하는데 그 목적이 있다.The present invention was devised to solve the problems of the prior art as described above, and when the fuel injection timing is late, the fuel injection angle is varied so that the fuel injected from the injection nozzle is introduced into the combustion chamber of the piston. It is an object of the present invention to provide an injector unit having a double injection angle to prevent the thermal shock to improve the durability of the engine.
상기의 목적을 달성하기 위해 본 발명은 인젝터 유닛의 몸체 내에 설치되고 전자제어장치와 연결된 솔레노이드의 전기신호에 따라 상,하 동작되는 인너 실린더와 아웃터 실린더,In order to achieve the above object, the present invention is installed in the body of the injector unit and the inner cylinder and the outer cylinder which is operated up and down according to the electrical signal of the solenoid connected to the electronic control device,
상기 인젝터 유닛의 몸체 하부에 복수로 형성되고 상기 인너 실린더와 아웃터 실린더의 상,하 동작에 따라 개폐되어 연료를 분사하는 제 1분사노즐 및 제 2분사노즐로 구성된 것을 특징으로 한다.A plurality of first injection nozzles and a second injection nozzle are formed in the lower body of the injector unit and opened and closed according to the up and down operations of the inner cylinder and the outer cylinder to inject fuel.
도 1 및 도 2는 종래 인젝터 유닛에 따른 연료 분사상태를 예시한 개략도.1 and 2 are schematic diagrams illustrating a fuel injection state according to a conventional injector unit.
도 3은 본 발명의 이중 분사각을 갖는 인젝터 유닛의 개략구성도.3 is a schematic configuration diagram of an injector unit having a double spray angle of the present invention.
도 4 및 도 5는 본 발명의 이중 분사각을 갖는 인젝터 유닛의 작용상태도.4 and 5 is a working state of the injector unit having a double injection angle of the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
10 : 인젝터 유닛 12 : 몸체10: injector unit 12: body
14 : 연료공급라인 20 : 인너 실린더14: fuel supply line 20: inner cylinder
30 : 아웃터 실린더 31 : 연료라인30: outer cylinder 31: fuel line
32, 34 : 솔레노이드 36 : 리턴스프링32, 34: solenoid 36: return spring
40 : 제 1분사노즐 42 : 제 2분사노즐40: first jet nozzle 42: second jet nozzle
100 : 피스톤 102 : 연소실100: piston 102: combustion chamber
104 : 피스톤의 상면 106 : 실린더 라이너104: upper surface of the piston 106: cylinder liner
이하에서 본 발명의 바람직한 실시 예를 첨부된 도면에 의거 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
본 발명의 설명에서 종래와 동일 또는 동등한 부분은 같은 도면부호로 표기하여 설명한다.In the description of the present invention, the same or equivalent parts as in the prior art will be described with the same reference numerals.
도 3은 본 발명의 이중 분사각을 갖는 인젝터 유닛의 개략구성도이고, 도 4 및 도 5는 본 발명의 이중 분사각을 갖는 인젝터 유닛의 작용상태도를 도시한 것이다.3 is a schematic configuration diagram of an injector unit having a double injection angle of the present invention, and FIGS. 4 and 5 illustrate an operation state diagram of the injector unit having a double injection angle of the present invention.
본 발명의 인젝터 유닛(10)은 도 3에 도시된 바와 같이 몸체(12) 내에 인너 실린더(20)와 아웃터 실린더(30)가 설치된다.Injector unit 10 of the present invention, the inner cylinder 20 and the outer cylinder 30 is installed in the body 12, as shown in FIG.
상기 인너 실린더(20)와 아웃터 실린더(30)는 전자제어장치(Electric Control Unit; ECU)(30)와 연결된 솔레노이드(32)(34)와 각각 연결되며 솔레노이드(32)(34)의 전기적 신호에 의해 동작되어 몸체(12) 내에서 상,하 동작이 이루어지게 된다.The inner cylinder 20 and the outer cylinder 30 are respectively connected to solenoids 32 and 34 connected to an electronic control unit (ECU) 30 and are connected to electrical signals of the solenoids 32 and 34. Operated by the upper and lower motions are made in the body 12.
상기 몸체(12)의 하부에는 상기 인너 실린더(20)와 아웃터 실린더(30)의 동작에 따라 개폐되어 연료를 분사하는 제 1분사노즐(40)과 제 2분사노즐(42)이 형성되어 구성된다.The first injection nozzle 40 and the second injection nozzle 42 are formed in the lower portion of the body 12 to open and close according to the operation of the inner cylinder 20 and the outer cylinder 30 to inject fuel. .
그리고 상기 몸체(12) 내에 형성되는 연료공급라인(14)은 아웃터 실린더(30)에 형성된 연료라인(31)과 연결되어 몸체(12) 내로 공급되게 된다.The fuel supply line 14 formed in the body 12 is connected to the fuel line 31 formed in the outer cylinder 30 to be supplied into the body 12.
도면중 설명부호 36은 솔레노이드(32)(34)에 의해 상승된 인너 실린더(20)와 아웃터 실린더(30)를 복귀시키는 리턴스프링을 도시한 것이다.Reference numeral 36 in the drawings shows a return spring for returning the inner cylinder 20 and the outer cylinder 30 lifted by the solenoids 32 and 34.
상기와 같이 구성된 본 발명에 의하면, 특정된 연료분사시기를 기준으로 이보다 진각시에는 도 4에 도시된 바와 같이 전자제어장치(30)의 신호에 따라 솔레노이드(32)가 인너 실린더(20)를 동작시켜 이 인너 실린더(20)의 하부가 제 1분사노즐(40)을 열어 연료를 피스톤(100)의 연료실(102) 내로 유입시키게 된다.According to the present invention configured as described above, the solenoid 32 operates the inner cylinder 20 in response to the signal of the electronic control device 30 as shown in FIG. As a result, the lower portion of the inner cylinder 20 opens the first spray nozzle 40 to introduce fuel into the fuel chamber 102 of the piston 100.
이때에는 아웃터 실린더(30)의 하부가 제 2분사노즐(42)을 막고 있는 상태가 된다.At this time, the lower part of the outer cylinder 30 is in the state which blocks the 2nd injection nozzle 42. As shown in FIG.
상기와 같은 상태에서 연료분사시기가 지각시에는 도 5에 도시된 바와 같이 전자제어장치(30)의 신호에 따라 솔레노이드(34)가 아웃터 실린더(30)를 동작시켜 이 아웃터 실린더(30)의 하부가 제 2분사노즐(42)을 열어 연료를 피스톤(100)의 연료실(102) 내로 유입시키게 된다.When the fuel injection timing is late in the above state, as shown in FIG. 5, the solenoid 34 operates the outer cylinder 30 according to the signal of the electronic controller 30 to lower the outer cylinder 30. The second injection nozzle 42 opens the fuel into the fuel chamber 102 of the piston 100.
이때 인너 실린더(20)는 리턴스프링(36)의 복귀력에 의하여 제 1분사노즐(40)을 막고 있는 상태가 된다.At this time, the inner cylinder 20 is in a state of blocking the first injection nozzle 40 by the return force of the return spring (36).
이와 같이 전자제어장치(30)의 제어에 따라 특정 연료분사시기보다 지각되는 경우에는 전자제어장치(30)가 솔레노이드(34)를 매개로 아웃터 실린더(30) 쪽에 온/오프 신호를 연속적으로 주고 인너 실린더(20) 쪽에는 연속적으로 오프 신호만을 주어 인너 실린더(20)가 닫혀 있는 상태에서 아웃터 실린더(30)만이 개폐동작을 하게 되어 종래처럼 분사되는 연료 전부가 연소실(102)로 들어가지 못하고 그중 일부의 연료가 피스톤(100)의 상면(104)을 향해 분사되는 문제가 발생되지 않게 된다.As described above, when it is late than a specific fuel injection time under the control of the electronic control device 30, the electronic control device 30 continuously gives the on / off signal to the outer cylinder 30 via the solenoid 34 and the inner Only the outer cylinder 30 is opened and closed in the state where the inner cylinder 20 is closed by continuously giving only an off signal to the cylinder 20 side, so that all of the fuel injected is not entered into the combustion chamber 102, and some of them are not. The problem that the fuel is injected toward the upper surface 104 of the piston 100 is not generated.
이상에서 설명한 바와 같이 본 발명은 인젝터 유닛의 연료분사각을 가변화시킬 수 있도록 함으로서 특정한 연료분사시기가 지각되었을 때 몸체에 형성된 제 1,2분사노즐에 의해 연료 분사각을 가변화시키게 됨에 따라 연료분사기기 지각으로 인하여 연료의 연소가 피스톤의 상면에서 이루어져 화염에 의해 실린더 라이너는 심한 열충격 및 이에 따른 실린더 라이너 크랙을 방지하여 엔진의 내구성을 향상시키는 효과를 갖게 되는 것이다.As described above, the present invention enables the fuel injection angle of the injector unit to be varied so that the fuel injection angle is changed by the first and second injection nozzles formed in the body when a specific fuel injection timing is late. Due to the injector perception, the combustion of fuel occurs on the upper surface of the piston, and the flame prevents the cylinder liner from severe thermal shock and consequently the cylinder liner crack, thereby improving the durability of the engine.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980060457A KR20000044014A (en) | 1998-12-29 | 1998-12-29 | Injector unit having two-fold spraying angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980060457A KR20000044014A (en) | 1998-12-29 | 1998-12-29 | Injector unit having two-fold spraying angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20000044014A true KR20000044014A (en) | 2000-07-15 |
Family
ID=19567270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019980060457A Abandoned KR20000044014A (en) | 1998-12-29 | 1998-12-29 | Injector unit having two-fold spraying angle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20000044014A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100706555B1 (en) * | 2006-04-20 | 2007-04-13 | 현대자동차주식회사 | Diesel engine injectors |
-
1998
- 1998-12-29 KR KR1019980060457A patent/KR20000044014A/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100706555B1 (en) * | 2006-04-20 | 2007-04-13 | 현대자동차주식회사 | Diesel engine injectors |
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