KR960002020Y1 - Tester for fuel ejecting - Google Patents

Tester for fuel ejecting Download PDF

Info

Publication number
KR960002020Y1
KR960002020Y1 KR2019940014081U KR19940014081U KR960002020Y1 KR 960002020 Y1 KR960002020 Y1 KR 960002020Y1 KR 2019940014081 U KR2019940014081 U KR 2019940014081U KR 19940014081 U KR19940014081 U KR 19940014081U KR 960002020 Y1 KR960002020 Y1 KR 960002020Y1
Authority
KR
South Korea
Prior art keywords
lever
piston
fuel injection
housing
union
Prior art date
Application number
KR2019940014081U
Other languages
Korean (ko)
Other versions
KR960002135U (en
Inventor
김광준
Original Assignee
김광준
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 김광준 filed Critical 김광준
Priority to KR2019940014081U priority Critical patent/KR960002020Y1/en
Publication of KR960002135U publication Critical patent/KR960002135U/en
Application granted granted Critical
Publication of KR960002020Y1 publication Critical patent/KR960002020Y1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M65/00Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/001Measuring fuel delivery of a fuel injector
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M65/00Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
    • F02M65/003Measuring variation of fuel pressure in high pressure line

Abstract

내용 없음.No content.

Description

디젤엔진의 연료분사노즐용 테스터Tester for Fuel Injection Nozzle of Diesel Engine

제1도는 본 고안의 사시도1 is a perspective view of the present invention

제2도는 제1도의 I-I선 단면을 포함한 본 고안의 정면도2 is a front view of the present invention including the cross-section of line I-I of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 노즐테스터 2 : 가압펌프1: Nozzle tester 2: Pressure pump

3 : 피스톤레버 4 : 분기관3: piston lever 4: branch pipe

5 : 유압계 6 : 노즐장착관5: Hydraulic system 6: Nozzle mounting pipe

7 : 시험유통 8 : 피봇7: Test distribution 8: Pivot

9 : 유니온 21 : 하우징9: union 21: housing

21a : 플랜지 22 : 실린더21a: flange 22: cylinder

22a : 급유공 23 : 피스톤22a: oil supply hole 23: piston

24 : 딜리버리밸브 25 : 밸브스프링24: Delivery valve 25: Valve spring

26 : 레버스프링 27 : 밸브시트26: lever spring 27: valve seat

31 : 레버선단부31 lever end

본 고안은 디젤엔진용 연료분사노즐의 분사압력을 아무데서나 간편하고 정확하게 시험할 수 있게 한 수동식테스터에 관한 것이다.The present invention relates to a manual tester that enables simple and accurate testing of the injection pressure of a fuel injection nozzle for a diesel engine anywhere.

디젤엔진의 연료분사노즐은 엔진출력에 따라 분사압력이 각각 상이하고 자동차제조공장에서 디젤엔진은 조립할 당시에 연료분사노즐의 분사압력이 적정수준으로 조정해 놓았다 하더라도 연료분사노즐의 노휴등에 기인하여 필시 연료분사압력에 변화가 오게 된다.The fuel injection nozzles of diesel engines have different injection pressures depending on the engine output, and even if the injection pressure of the fuel injection nozzles has been adjusted to an appropriate level at the time of assembling the diesel engines at the automobile manufacturing plant, the fuel injection nozzles must be fueled due to the fuel injection nozzles no-load. The injection pressure changes.

이와 같이 연료분사노즐의 분사압력에 변화가 오면 연료의 적기공급이 이뤄지지 않거나 과량의 연료가 공급되므로서 불완전연소, 이상연소현상이 일어나고, 이 때문에 매연과 소음이 다량 발생하는 것은 물론 때로는 엔진의 과열과 녹크현상같은 원인제공이 되기도 하는 등 그로 인해 겪게되는 부작용은 아주 크다.As such, when the injection pressure of the fuel injection nozzle is changed, timely supply of fuel is not achieved or excess fuel is supplied, resulting in incomplete combustion and abnormal combustion, which causes a lot of smoke and noise, and sometimes engine overheating. There are many side effects that can be caused, such as overuse and knocking.

그러므로 자동차를 운행하다가도 디젤엔진에 이상이 생긴 것이 감지되면 혹시나 연료분사노즐의 분사압력에 이상이 생기지나 않았는지도 함께 살펴보고 이때 만약에 연료분사노즐에 이상이 발견되었으면 연료분사노즐을 수거하고 그 분사압력을 점검해서 분사압력을 재조정하든가 새로운 연료분사노즐로 교체해야 한다.Therefore, if a diesel engine detects an abnormality while driving a vehicle, it is also possible to check whether the injection pressure of the fuel injection nozzle is abnormal.If an abnormality is found in the fuel injection nozzle, the fuel injection nozzle is collected and the injection is performed. Check the pressure and readjust the injection pressure or replace it with a new fuel injection nozzle.

그런데, 지금까지는 자동화된 고가장비를 갖춘 대규모정비공장이 아닌 경정비업소라든가 혹은 자가 등 아무데서나 손쉽게 연료분사노즐의 분사압력을 점검할만한 간이테스터가 없어서 많은 불편과 시간허비에 막대한 비용지출의 부담까지 꺾어왔다.However, up to now, there has been no convenient tester that can easily check the injection pressure of fuel injection nozzles at any maintenance facility or self, not a large maintenance factory with automated expensive equipment. .

따라서, 본 고안의 목적은 소형으로서 저렴하고 또한 누구나 간편하게 사용하여 디젤엔진용 연료분사노즐의 분사압력을 점검할 수 있는 테스터를 제공하는 것이다.Accordingly, an object of the present invention is to provide a tester capable of checking the injection pressure of a fuel injection nozzle for a diesel engine using a compact, inexpensive, and simple one.

피스톤레버로 작동하는 수동식 가압펌프위에 노즐장착관과 시험유통을 결합한 분기관을 접속하고, 이 분기관 위에는 유압계를 조립한 것으로, 노즐장착관에는 점검할 연료분사노즐을 장전하고 시험유통에는 적당량의 시험유를 주입한 다음에 피스톤레버를 아래로 반복작동하여 시험유를 가압펌프내로 강제 유입시켜 연료분사노즐과 유압계로 분산시켜 내부의 유압을 상승시킴으로써 어느 수준에 이르러 연료분사노즐에서 시험유가 내뿜어지는 때의 유압계의 수치를 파악 그 분사압력을 확인할 수 있게 한 것이다.A branch pipe combined with a nozzle mounting pipe and a test flow pipe is connected to a manual pressure pump operated by a piston lever, and a hydraulic system is assembled on the branch pipe. The nozzle mounting pipe is loaded with a fuel injection nozzle to be checked and an appropriate amount for the test flow pipe. After the test oil is injected, the piston lever is repeatedly operated downward to forcibly introduce the test oil into the pressurized pump, disperse it into the fuel injection nozzle and the hydraulic system, and increase the hydraulic pressure inside. The test oil is ejected from the fuel injection nozzle to a certain level. It is to check the numerical value of the hydraulic system at the time of losing and to confirm the injection pressure.

이하, 첨부도면에 따라 더욱 구체적으로는 본 고안을 설명한다.Hereinafter, the present invention will be described in more detail according to the accompanying drawings.

제1도에서 보듯이 본 고안의 디젤엔진용 연료분사노즐 테스터(1)는 아래에서 윗쪽으로 피스톤레버(3) 및 시험유통(7)이 딸린 가압펌프(2)와 노즐장착관(6)이 딸린 분기관 (4) 및 여기에 결합된 유압계(5)로 이뤄진다.As shown in FIG. 1, the fuel injection nozzle tester 1 for the diesel engine of the present invention has a pressurized pump 2 and a nozzle mounting tube 6 having a piston lever 3 and a test flow 7 from below. It consists of an attached branch pipe 4 and a hydraulic system 5 coupled thereto.

가압펌프(2)는 제2도에 나타난 바와 같이 하우징(21)과, 실린더(22)와 피스톤(23) 딜리버리 밸브(24)와 밸브복귀스프링(25) 및 레버복귀스프링(26)으로 이뤄진다.The pressurizing pump 2 is composed of a housing 21, a cylinder 22, a piston 23, a delivery valve 24, a valve return spring 25, and a lever return spring 26, as shown in FIG. 2.

그리고 시험유통(7)의 시험연로유는 급유관(71)을 타고 하우징(21)으로 유입된 후 곧바로 상기 실린더(22)에 측방으로 관통된 급유공(22a)으로 유입된다.In addition, the test fuel oil of the test barrel 7 flows into the housing 21 through the oil supply pipe 71 and immediately flows into the oil supply hole 22a which is laterally penetrated through the cylinder 22.

이 급유공(22a)의 위치는 피스톤(23)이 하사점에 머물 때 그 윗쪽이 된다.The position of this oil supply hole 22a becomes upper side when the piston 23 stays at bottom dead center.

또, 하우징(21)의 하단에서 레버(3)를 축지지하는 피봇(8)을 중심으로 하여 피스톤레버(3)의 레버선단부(31)는 하우징(21)속으로 들어와 있고, 이 레버선단부(31)에는 상기 피스톤(23)의 하단이 얹혀진다.Moreover, the lever end part 31 of the piston lever 3 enters into the housing 21 centering on the pivot 8 which axially supports the lever 3 at the lower end of the housing 21, and this lever end part ( 31, the lower end of the piston 23 is mounted.

또한 상기 실린더(21)위에는 밸브시트(27)가 얹히고, 이 밸브시트(27)에는 딜리버리 밸브(24)의 하반부가 헐겁게 삽입된 가운데 그 칼라(24a)가 밸브시트(27)위에 걸려서 밑빠짐을 방지한다.In addition, a valve seat 27 is placed on the cylinder 21, and a lower half of the delivery valve 24 is loosely inserted into the valve seat 27, and the collar 24a is caught on the valve seat 27 to fall out. To prevent.

그리고, 상기 딜리버리 밸브(24)의 칼라(21a)와 하우징(21)의 상단에 체결한 유니온(9) 저면과의 사이에는 밸브스프링(25)이 장전되고, 상기 유니온 (9)과 하우징(21)내의 레버선단부(31)간에는 레버스프링(26)이 장전된다.The valve spring 25 is loaded between the collar 21a of the delivery valve 24 and the bottom surface of the union 9 fastened to the upper end of the housing 21, and the union 9 and the housing 21 are loaded. The lever spring 26 is loaded between the lever tip portions 31 in the.

여기서, 밸브스프링(25)는 개방된 딜리버리 밸브(24)를 강제로 복귀시키는 압력테이고, 레버스프링(26)은 피스톤(23)을 상사점위치로 상승시킨 상태를 원위치로 복귀시켜주는 압력체이다.Here, the valve spring 25 is a pressure table forcibly returning the opened delivery valve 24, and the lever spring 26 is a pressure body for returning the piston 23 to its top dead center position. to be.

그리고 노즐장착관(6)의 선단에는 점검대상의 연료분사노즐(A)을 나사식으로 장전할 링너트(61)가 부착되어 있고, 유압계(5)는 실린더(22)측에서 강제로 상승하는 시험유의 유압이 가해질 수 있는 형태로 상기 유니온(9)측에 연결되어 있으며, 하우징(21)의 바닥에 덧붙인 플랜지(21a)에는 체결공을 뚫어서 작업대같은 곳에 보울트로 고정하여 시험하거나 혹은 클램프 등을 이용하여 작업대같은 곳에 간단히 고정하고 시험할 수 있게 한다.At the distal end of the nozzle mounting tube 6, a ring nut 61 is mounted to screw the fuel injection nozzle A to be inspected in a screwed manner, and the hydraulic system 5 is forcibly lifted from the cylinder 22 side. It is connected to the union (9) side in the form that the hydraulic oil of the test oil to be applied, and the flange 21a added to the bottom of the housing 21 is drilled with a fastening hole to fix it with a bowl, such as a workbench or clamp or the like This allows for simple fixation and testing, such as on a workbench.

점검할 연료분사노즐(A)을 노즐장작관(6)의 링너트(61)에 긴밀하게 체결하는 한편으로 시험유통(7)에는 적당량의 시험유를 주입하고 뚜껑(72)으로 밀폐한 다음에 피스톤레버(3)를 올리고 내리기를 반복하는 펌핑작업을 진행한다.While the fuel injection nozzle (A) to be inspected is tightly fastened to the ring nut (61) of the nozzle mounting pipe (6), the test container (7) is filled with an appropriate amount of test oil and sealed with a lid (72). Piston lever (3) raises and lowers the pumping operation is repeated.

그리하여 피스톤(23)이 하사점으로 향할 때에는 시험유통(7)내의 시험유가 실린더(22)의 급유공(22a)로 유입되어 피스톤(23)위에 고이고, 피스톤(23)이 상사점으로 향할적에는 실린더(22)로 유입된 시험유는 피스톤의 펌핑압력에 밀려서 딜리버리 밸브(24)를 강제로 열어제치고 분기관(4)으로 향한다. 분기관(4)에 이른 시험유는 유압계(5)와 노즐장착관(6)쪽으로 분산된다.Thus, when the piston 23 is directed to the bottom dead center, the test oil in the test barrel 7 flows into the oil supply hole 22a of the cylinder 22, accumulates on the piston 23, and the piston 23 is directed to the top dead center. The test oil introduced into (22) is pushed by the pumping pressure of the piston to forcibly open the delivery valve (24) and head for the branch pipe (4). The test oil reaching the branch pipe 4 is dispersed toward the hydraulic system 5 and the nozzle mounting pipe 6.

피스톤레버(3)에 가했던 외력을 제거하면 그동안 탄력적으로 수축되었던 레버스프링(26)이 팽창되면서 피스톤레버(3)를 되돌리고, 열렸던 딜리버리 밸브(24)도 밸브스프링(25)에 의해 강제로 하강 복귀하여 실린더(22)위를 가로막아서 펌핑된 시험유가 실린더(22)로 역류되지 못하게 한다. 이러기를 여러차례 반복하는 동안에 분기관(4) 이후의 유압은 차츰 상승한다.When the external force applied to the piston lever 3 is removed, the lever spring 26 that has been elastically contracted in the meantime expands and returns the piston lever 3, and the delivery valve 24 that has been opened is also forced down by the valve spring 25. It returns and intercepts the cylinder 22 to prevent the pumped test oil from flowing back into the cylinder 22. During this repetition several times, the hydraulic pressure after the branch pipe 4 gradually rises.

그러다가 유압이 어느 수준엔가에 당도하면 연료분사노즐(A)에서 시험유가 분사된다. 이때 유압계(5)의 바늘이 지시하는 눈금을 읽음으로써 그 연료분사노즐(A)의 분사압력을 알아낼 수가 있다.Then, when the hydraulic pressure reaches a certain level, the test oil is injected from the fuel injection nozzle (A). At this time, by reading the scale indicated by the needle of the hydraulic system 5, the injection pressure of the fuel injection nozzle A can be found out.

유압계(5)의 수치에 따라 그 연료분사노즐(A)의 분사압력에 맞게 연료펌프의 가압력을 가감하고, 그래도 성능개선이 어렵고 판단될 시에는 아예 새연료분사노즐로 교체한다.According to the numerical value of the hydraulic system 5, the pressurization pressure of the fuel pump is adjusted according to the injection pressure of the fuel injection nozzle A, and if it is still difficult to improve the performance, it is replaced with a new fuel injection nozzle.

이상 설명한 바와 같이 본 고안은 소형이어서 보관하기 쉽고 사용방법도 까다로울게 없어 이것을 고정시킬만한 곳이면 어디서나 디젤엔진용 연료분사노즐의 분사압력을 점검할 수가 있고, 따라서 분사압력의 이상에 기인하는 디젤엔진의 성능저하현상에 대하여 신속히, 저렴한 비용을 들이고도 아주 간편하게 대피할 수가 있다.As described above, the present invention is small in size, easy to store, and difficult to use. Therefore, the injection pressure of the fuel injection nozzle for diesel engine can be checked wherever it can be fixed. Therefore, the diesel engine due to the abnormal injection pressure It is possible to evacuate quickly and at low cost very easily.

Claims (1)

하단 둘레에 플랜지(21a)를 가진 하우징(21)에 피봇(8)으로 피스톤레버(3)를 축설치하고, 이 피스톤레버(3)에 의하여 승강되는 피스톤(23)은 실린더(22)에 내장하고 또한 이 실린더(22)의 상단에 밸브시트(27)에 안장시킨 딜리버리 밸브(24)를 장착함과 동시에 상기 하우징(21)의 상단에, 체결한 유니온(9)의 저면과 상기 딜리버리 밸브(24)의 칼라(24a) 및 유니온(9)의 저면과 하우징(21)내로 들어온 피스톤레버(3)의 레버선단부(31)간에는 밸브스프링(25)과 레버스프링(26)을 장전한 수동식 가압펌프(2)상에 시험유통(7)을 설치하고, 상기 유니온(9) 위에는 노즐장착관(6)을 결합한 분기관(4)을 접속하며, 이 분기관(4)위에는 유압제(5)를 결합한 것을 특징으로 하는 디젤엔진의 연료분사노즐용 테스터.The piston lever 3 is pivotally mounted to the housing 21 having the flange 21a around the lower end by the pivot 8, and the piston 23 lifted by the piston lever 3 is built in the cylinder 22. In addition, the delivery valve 24 seated on the valve seat 27 is mounted on the upper end of the cylinder 22, and the bottom of the fastened union 9 and the delivery valve are mounted on the upper end of the housing 21. Manual pressure pump loaded with a valve spring 25 and a lever spring 26 between the collar 24a of the 24 and the bottom face of the union 9 and the lever end portion 31 of the piston lever 3 introduced into the housing 21. A test barrel (7) is provided on (2), and on the union (9), a branch pipe (4) in which the nozzle mounting pipe (6) is coupled is connected, and a hydraulic fluid (5) is placed on the branch pipe (4). A fuel injection nozzle tester for a diesel engine, characterized in that combined.
KR2019940014081U 1994-06-16 1994-06-16 Tester for fuel ejecting KR960002020Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019940014081U KR960002020Y1 (en) 1994-06-16 1994-06-16 Tester for fuel ejecting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019940014081U KR960002020Y1 (en) 1994-06-16 1994-06-16 Tester for fuel ejecting

Publications (2)

Publication Number Publication Date
KR960002135U KR960002135U (en) 1996-01-19
KR960002020Y1 true KR960002020Y1 (en) 1996-03-07

Family

ID=19385790

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019940014081U KR960002020Y1 (en) 1994-06-16 1994-06-16 Tester for fuel ejecting

Country Status (1)

Country Link
KR (1) KR960002020Y1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101352576B1 (en) * 2013-09-10 2014-01-16 유웅자 Testing device for fuel injection valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100440319B1 (en) * 2001-12-19 2004-07-15 현대자동차주식회사 injection nozzle measurement system and the measurement method
KR102578945B1 (en) * 2023-02-01 2023-09-15 주식회사 디비콤 Explosion-proof and increased safety connection type gas-tight feedthrough connectors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101352576B1 (en) * 2013-09-10 2014-01-16 유웅자 Testing device for fuel injection valve

Also Published As

Publication number Publication date
KR960002135U (en) 1996-01-19

Similar Documents

Publication Publication Date Title
US4485790A (en) Holding construction of a fuel injection valve in an internal combustion engine
US4561297A (en) Hand-held diesel engine injection tester
US5000043A (en) Apparatus and method for testing fuel injectors
KR830008027A (en) Diesel Engine Injection
DE68907549D1 (en) INJECTION VALVE CLEANING / TESTING DEVICE.
KR20010093297A (en) Valve system for controlling the fuel intake pressure in a high-pressure pump
US4061027A (en) Fuel injector testing apparatus
KR960002020Y1 (en) Tester for fuel ejecting
US2744407A (en) Injector testing device
US3177707A (en) Testing equipment for fuel injection engines
US4186884A (en) Liquid fuel injection nozzles
US7096724B2 (en) Fuel injector testing system
US4037468A (en) Fuel injector testing apparatus
KR100235021B1 (en) Apparatus for inspecting injected status of oil jet
CA1188582A (en) Modular unit fluid pump-injector
JPH05149210A (en) Fuel injection valve of internal combustion engine
RU2338921C1 (en) Diesel engine pump-injector and injector test bench
KR100337313B1 (en) Device for measuring pre-lift of nozzle
US4480792A (en) Fuel injector with gear-driven calibration of needle
RU2303159C1 (en) Device for diagnosing condition of precision pairs of fuel-injection pump and nozzles of diesel engine
RU209492U1 (en) Pressure control device in the nozzle and in the space above the plunger of the fuel pump
JPS6060267A (en) Injectiion pressure measuring device for unit injector
KR101038128B1 (en) Variable Type Regulator And Injector Test Equipment Comprising Variable Type Regulator
RU2247856C2 (en) Device for diagnosing condition of diesel engine high-pressure devices
CN2895779Y (en) Fuel-injector fuel-oil cut-offdevice

Legal Events

Date Code Title Description
A201 Request for examination
E701 Decision to grant or registration of patent right
NORF Unpaid initial registration fee