FI20185554A1 - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
- Publication number
- FI20185554A1 FI20185554A1 FI20185554A FI20185554A FI20185554A1 FI 20185554 A1 FI20185554 A1 FI 20185554A1 FI 20185554 A FI20185554 A FI 20185554A FI 20185554 A FI20185554 A FI 20185554A FI 20185554 A1 FI20185554 A1 FI 20185554A1
- Authority
- FI
- Finland
- Prior art keywords
- sensor
- recess
- pressure sensor
- cylinder head
- tai
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 51
- 239000000446 fuel Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/005—Plugs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
An internal combustion engine (1), with a cylinder head (2), with at least one cylinder, wherein in the cylinder head (2) for each cylinder in each case at least one inlet-side gas exchange valve for charge air or for a charge air-fuel mixture, in each case at least one exhaust-side gas exchange valve for exhaust gas and in each case a pressure sensor for measuring a combustion chamber-side pressure within a combustion chamber (3) of the respective cylinder are received, wherein a recess (4) of the cylinder head (2) receiving the respective pressure sensor and a sensor housing or a sensor adapter of the pressure sensor received in the respective recess (4) are each conically contoured on sections facing one another and adjoining the combustion chamber (3) of the respective cylinder, and wherein a cone angle of the respective conically contoured section of the sensor housing or of the sensor adapter is greater than a cone angle of the conically contoured section (11) of the respective recess (4) of the cylinder head (2) receiving the pressure sensor facing the same.
Description
Internal combustion engine
The invention relates to an internal combustion engine.
Internal combustion engines known from practice typically comprise multiple cylinders. For each cylinder of the internal combustion engine, at least one inlet-side gas exchange valve for charge air and at least one exhaust-side gas exchange valve for exhaust gas is received in a cylinder head of the internal combustion engine in each case. In gas engines or dual-fuel engines, the inlet-side gas exchange valve serves for introducing a gas-air mixture into the combustion chamber of the respective cylinder.
From practice it is already known, furthermore, that the cylinder head of an internal combustion engine receives a pressure sensor for each cylinder in order to detect the combustion chamber-side pressure in the combustion chamber of the respective cylinder. Here it is known to arrange the pressure sensor in a corresponding recess of the cylinder head in that the pressure sensor, via an external thread formed on a sensor housing of the same is screwed together with a corresponding internal thread in the recess of the cylinder head. Providing such internal threads in the recesses of the cylinder head which serve for receiving the respective pressure sensor is elaborate and expensive.
Starting out from this, the present invention is based on the object of creating a new type of internal combustion engine in which a pressure sensor is optimally integrated in the cylinder head. This object is solved through an internal combustion engine according to Claim 1.
According to the invention, a recess of the cylinder head receiving the respective pressure sensor and a sensor housing or a sensor adapter of the pressure sensor received in the respective recess are each contoured conically on sections facing one another and following the combustion chamber of the respective cylinder, wherein a cone angle of the conically contoured section of the sensor housing or sensor adapter is smaller than a cone angle of the conically contoured section of the recess of the cylinder head receiving the pressure sensor. By contouring the conically contoured sections of the recess of the cylinder head receiving the pressure sensor and of the sensor housing or sensor adapter of the pressure sensor according to the invention, an optimal sealing of the respective pressure sensor in the cylinder head can be realised, namely without the need of an internal thread in the region of the recess receiving the respective pressure sensor.
Preferentially, the cone angle of the conically contoured section of the sensor housing or sensor adapter is between 5.0° and 2.0° smaller than the cone angle of the conically contoured section of the recess of the cylinder head receiving the pressure sensor. This makes possible a particularly good sealing effect between cylinder head and the respective pressure sensor.
According to an advantageous further development, the recess receiving the respective pressure sensor and the sensor housing or the sensor adapter of the pressure sensor received in the respective recess are each contoured cylindrically on sections facing one another that are spaced further from the combustion chamber of the respective cylinder than the conically contoured sections, wherein an outer diameter of the cylindrically contoured section of the sensor housing or sensor adapter forming a defined clearance fit is smaller than an inner diameter of the cylindrically contoured section of the recess receiving the pressure sensor. In the region of this defined clearance fit, the sealing effect between cylinder housing and pressure sensor can be further improved. Furthermore, heat can be optimally dissipated from the pressure sensor into the cylinder head.
Preferentially, the nominal diameters of the outer diameters of the cylindrically contoured sections of the sensor housing or sensor adapter and of the cyl indrically contoured section of the recess of the cylinder head receiving the pressure sensor are identical, wherein the outer diameter of the cyl indrically contoured section of the sensor housing or sensor adapter has an e7 dimension tolerance and the inner diameter of the cylindrically contoured section of the recess receiving the pressure sensor has an H7 dimension tolerance. Such a clearance fit is particularly preferred for providing the optimal sealing effect and optimal heat dissipation.
Preferentially, an external thread is formed between the cylindrically contoured section of the sensor housing or sensor adapter and the conically contoured section of the sensor housing or sensor adapter forming the clearance fit, wherein the recess of the cylinder head receiving the pressure sensor is formed without internal thread in an adjoining likewise cylindrically contoured section.
According to an advantageous further development, a recess coupling an interior space of the sensor housing or sensor adapter with the combustion chamber of the respective cylinder has a depth which amounts to between 0.5 times and 10.0 times the diameter of the same. By way of this, a particularly good signal pickup by the pressure sensor and accordingly a particularly good detection of the combustion chamber-side pressure of the respective cylinder is ensured.
Preferentially, the recess coupling the interior space of the sensor housing or sensor adapter with the combustion chamber of the respective cylinder has a depth which amounts to between 0.5 times and 5.0 times, particularly preferably between 1.0 times and 2.0 times the diameter of the same. These features serve for the further optimisation of the measurement quality or signal quality that can be provided by the pressure sensor.
Preferred further developments of the invention are obtained from the subclaims and the following description. Exemplary embodiments of the invention are explained in more detail by way of the drawing without being restricted to this. It shows:
Fig. 1: by way of an extract a cross section through a cylinder head of an internal combustion engine in the region of a recess serving for receiving a pressure sensor;
Fig. 2: a detail of a pressure sensor, namely of a sensor housing of the pressure sensor;
Fig. 3: a cross section through the detail of Fig. 2;
Fig. 4: a perspective view of a sensor adapter;
Fig. 5: a cross section through the sensor adapter of Fig. 4; and
Fig. 6: a detail of Fig. 5.
The invention relates to an internal combustion engine with at least one cylinder.
Fig. 1 shows an extract from an internal combustion engine 1 in the region of a cylinder head 2 of the same. A cylinder head 2 of an internal combustion engine 1 receives at least one inlet-side gas exchange valve and at least one exhaust-side gas exchange valve for each cylinder. Inlet-side gas exchange valves and exhaust-side gas exchange valves are not shown in Fig. 1.
By way of an inlet-side gas exchange valve, at least charge air and in the case of a gas engine and of a dual-fuel engine operated in the gas mode, fuel, in addition to the charge air, can also be introduced into a combustion chamber 3 of the respective cylinder. By way of the respective exhaust-side gas exchange valve, exhaust gas can be discharged from the combustion chamber 3 of the cylinder.
Fig. 1 shows a cross section through a cylinder head 2 of the internal combustion engine 1 in the region of a recess 4 for a pressure sensor 5, wherein the pressure sensor 5, which is received in the recess 4 of the cylinder head 2, serves for measuring a combustion chamber-side pressure in the combustion chamber 3 of the respective cylinder.
Fig. 2 and 3 shows details of a pressure sensor 5 which is received in the recess 4 of the cylinder head 2, namely details of a sensor housing 6 of the pressure sensor 5. The sensor housing 6 defines an interior space 7 for receiving the assemblies of the pressure sensor 5 providing the actual pressure measurement which are not shown.
According to the invention, both the recess 4 of the cylinder head 2 receiving the respective pressure sensor 5 and also the sensor housing 6 of the pressure sensor 5 received in the respective recess 4 are each contoured conically on sections 11,12 facing one another and adjoining the combustion chamber 3 of the respective cylinder, however with cone angles deviating from one another, wherein the cone angle a1 of the conically contoured section 11 of the recess 4 of the cylinder head 2 receiving the pressure sensor 5 is greater than the cone angle a2 of the conically contoured section 12 of the sensor housing 6. Accordingly, the cone angle a2 is smaller than the cone angle a1.
The cone angle a2 of the conically contoured section 12 of the sensor housing 6 is smaller between 5.0° and 2.0° than the cone angle a1 of the conically contoured section 11 of the recess 4 of the cylinder head 2 receiving the pressure sensor 5. Preferably, the cone angle of the sensor housing is between 5.0° and 2.0°, particularly preferably between 10.0° and 1.0° smaller than the cone angle a1 of the cylinder head 2 in the region of the recess 4.
By way of cone angles a1 and a2 in the region of the sensor housing 6 and the pressure sensor 5 and the recess 4 of the cylinder head 2 receiving the pressure sensor 5 dimensioned in such a manner, an optimal sealing between cylinder head 2 and pressure sensor 5 can be provided, namely without the need for the recess 4 of the cylinder head 2 to have an internal thread.
According to an advantageous further development, the recess 4 receiving the respective pressure sensor 5 and the sensor housing 6 of the pressure sensor 5 are cylindrically contoured on sections 13, 14 facing one another and spaced further from the combustion chamber 3 of the respective cylinder than the conically contoured sections 11, 12, wherein an outer diameter d2 of the cylindrically contoured section 14 of the sensor housing 6 of the pressure sensor 5 forming a clearance fit with the cylinder head 2 is smaller than an inner diameter d1 of the corresponding cylindrically contoured section 13 of the recess 4 of the cylinder head 2 receiving the pressure sensor 5.
Particularly preferably it is provided that the diameters d1 and d2, i.e. the diameters of the cylindrically contoured sections 13 and 14 have identical nominal diameters, wherein the outer diameter d2 of the cylindrically contoured section 14 of the sensor housing 6 has an e7 dimension tolerance and the inner diameter d1 of the cylindrically contoured section 13 of the recess 4 of the cylinder head 2 receiving the pressure sensor 5 has an H7 dimension tolerance. By way of this, the sealing effect between pressure sensor 5 and cylinder head 2 can be specifically adjusted in addition, while an optimal heat transfer from the pressure sensor 5 into the cylinder head 2 is possible furthermore.
In the region of the pressure sensor 5, namely of the sensor housing 6 of the pressure sensor 5, a further cylindrically contoured section 16 having an external thread 17 is formed between the cylindrically contoured section 14 and the conically contoured section 12 forming the clearance fit.
Such an external thread 17 on the pressure sensor 5 is advantageous for the calibration of the pressure sensor 5 by the manufacturer. A corresponding cylindrically contoured section 15 of the recess 4 of the cylinder head 2 serving for receiving the pressure sensor 5, which in the assembled state lies opposite the external thread 17 of the sensor housing 6 of the pressure sensor 5, does not have an internal thread and accordingly is embodied without internal thread. This is preferred for a simple manufacture of the cylinder head 2. Because of the configuration of the conically contoured sections 11,12 and cylindrically contoured sections 13 and 14 of recess 4 and sensor housing 6 described above, an internal thread in the region of the recess 4 can be omitted.
The interior space 7 of the sensor housing 6 can be coupled to the combustion chamber 3 of the respective cylinder via a recess 10. This recess 10 extends, starting out from the interior space of the sensor housing 6 in the direction of the end of the conically contoured section 12. This recess 10 has a diameter d3 and a length I3. In order to be able to optimally pick up the pressure that is present in the combustion chamber 3 of the cylinder, the depth I3 amounts to between 0.5 times and 10 times, preferably between 0.5 times and 5.0 times, particularly preferably between 1.0 times and 2.0 times the diameter d3 of the recess 10.
The invention can also be implemented in particular when conventional pressure sensors 5 are to be introduced into the recess 4 in the cylinder housing 2 via a sensor adapter 8. Fig. 4, 5 and 6 show details of such a sensor adapter 8.
In this case, the details described above in connection with the sensor housing 6 of the pressure sensor 5 then relate to the sensor adapter 8, and the cone angle a4 of the sensor adapter 8 corresponds to the cone angle a2 of the sensor housing 6, and wherein the length I5 and the diameter d5 of the recess 10 of the sensor adapter correspond to the diameter d3 and the depth I3 of the recess 10 of the sensor housing 6.
To avoid unnecessary repetitions, reference is therefore made to the above explanations regarding the sensor housing 6 of the pressure sensor 5 of Fig. 2 and 3 for the sensor adapter 8 and the configuration or contouring of the sections 12, 14 and 16 of the same and for the dimensioning of the recess 10 of the same.
Accordingly it is true in the exemplary embodiment of Fig. 4 to 6 that the cone angle a4 is greater than the cone angle a1, in particular between 0.2° and 2.0°, preferably between 0.4° and 2.0°, particularly preferably between 0.4° and 1.0° greater than the cone angle a1. It is true, furthermore, that the outer diameter d4 forming a clearance fit with the cylinder head 2 is smaller than an inner diameter d1. Furthermore, the depth I5 amounts to between 0.5 times and 10 times, preferably between 0.5 times and 5.0 times, particularly preferably between 1.0 times and 2.0 times the diameter d5.
The invention makes possible an optimal integration of a pressure sensor 5 in a cylinder head 2 of an internal combustion engine 1. The pressure sensor 5 can be integrated in a recess in the cylinder head 2 in a gas-tight manner, namely ensuring an optimal heat transfer and an optimal signal quality.
The pressure sensor 5 is preferentially a piezoelectric pressure sensor.
List of reference numbers 1 Internal combustion engine 2 Cylinder head 3 Combustion chamber 4 Recess 5 Pressure sensor 6 Sensor housing 7 Interior space 8 Sensor adapter 9 Interior space 10 Recess 11 Conical section 12 Conical section 13 Cylindrical section 14 Cylindrical section 15 Cylindrical section 16 Cylindrical section 17 External thread
Claims (8)
1. Polttomoottorikone (1), jossa on sylinterinkansi (2), jossa on ainakin yksi sylinteri, jolloin jokaisen sylinterin sylinterinkanteen (2) on sijoitettu kulloinkin ainakin yksi sisääntulopuolinen kaasunvaihtoventtiili syöttöilmaa tai syöttöilma-polttoaineseosta varten, kulloinkin ainakin yksi ulostulopuolinen kaasunvaihtoventtiili pakokaasua varten ja kulloinkin paineanturi (5) polttotilan puoleisen paineen mittaamiseksi kulloisenkin sylinterin polttotilan (3) sisällä, tunnettu siitä, että kulloisenkin paineanturin (5) vastaanottava sylinterinkannen (2) syvennys (4) ja kulloiseenkin syvennykseen (4) vastaanotetun paineanturin (5) an-turikotelo (6) tai anturiadapteri (8) on kulloinkin muotoiltu kartiomaisiksi toisiaan kohti olevilta, kulloisenkin sylinterin polttotilaan (3) yhdistyviltä osuuksilta (11,12), anturikotelon (6) tai anturiadapterin (8) kulloisenkin kartiomaiseksi muotoillun osuuden (12) kartiokulma on pienempi kuin paineanturin (5) vastaanottavan sylinterikannen (2) syvennyksen (4) kartiomaiseksi muotoillun osuuden (11) sitä kohti oleva kartiokulma.
1. An internal combustion engine (1), with a cylinder head (2), with at least one cylinder, wherein in the cylinder head (2) for each cylinder in each case at least one inlet-side gas exchange valve for charge air or for a charge air-fuel mixture, in each case at least one exhaust-side gas exchange valve for exhaust gas and in each case a pressure sensor (5) for measuring a combustion chamber-side pressure within a combustion chamber (3) of the respective cylinder are received, characterized in that a recess (4) of the cylinder head (2) receiving the respective pressure sensor (5) and a sensor housing (6) or a sensor adapter (8) of the pressure sensor (5) received in the respective recess (4) are each contoured conically on sections (11, 12) facing one another and following the combustion chamber (3) of the respective cylinder, a cone angle of the respective conically contoured section (12) of the sensor housing (6) or of the sensor adapter (8) is smaller than a cone angle of the conically contoured section (11) of the respective recess (4) of the cylinder head (2) receiving the pressure sensor (5) facing the same.
2. Patenttivaatimuksen 1 mukainen polttomoottorikone, tunnettu siitä, että anturikotelon (6) tai anturiadapterin (8) kartiomaiseksi muotoillun osuuden (12) kartiokulma on 5,0° - 2,0° pienempi kuin paineanturin (5) vastaanottavan sylinterinkannen (2) syvennyksen (4) kartiomaiseksi muotoillun osuuden (11) kartiokulma.
2. The internal combustion engine according to Claim 1, characterized in that the cone angle of the conically contoured section (12) of the sensor housing (6) or sensor adapter (8) is between 5.0° and 2.0° smaller than the cone angle of the conically contoured section (11) of the recess (4) of the cylinder head (2) receiving the pressure sensor (5).
3. Patenttivaatimuksen 2 mukainen polttomoottorikone, tunnettu siitä, että anturikotelon (6) tai anturiadapterin (8) kartiomaiseksi muotoillun osuuden (12) kartiokulma on 5,0° - 2,0°, edullisesti 10,0° - 1,0° pienempi kuin paineanturin (5) vastaanottavan sylinterinkannen (2) syvennyksen (4) kartiomaiseksi muotoillun osuuden (11) kartiokulma.
3. The internal combustion engine according to Claim 2, characterized in that the cone angle of the conically contoured section (12) of the sensor housing (6) or sensor adapter (8) is between 5.0° and 2.0°, preferably between 10.0° and 1.0°, smaller than the cone angle of the conically contoured section (11) of the recess (4) of the cylinder head (2) receiving the pressure sensor (5).
4. Jonkin patenttivaatimuksen 1 - 3 mukainen polttomoottorikone, tunnettu siitä, että kulloisenkin paineanturin (5) vastaanottava sylinterinkannen (2) syvennys (4) ja kulloiseenkin syvennykseen (4) vastaanotetun paineanturin (5) anturikotelo (6) tai anturiadapteri (8) on kulloinkin muotoiltu sy-linterimäisiksi toisiaan kohti olevilta osuuksilta (13, 14), jotka on välitetty kauemmaksi kulloisenkin sylinterin polttotilasta (3) kuin kartiomaisiksi muotoillut osuudet (11,12), jolloin anturikotelon (6) tai anturiadapterin (8) sylinterimäisek- si muotoillun osuuden (14) ulkoläpimitta on määritettyä välyssovitusta muodostettaessa pienempi kuin paineanturin (5) vastaanottavan syvennyksen sylinteri-mäiseksi muotoillun osuuden (13) sisäläpimitta.
4. The internal combustion engine according to any one of the Claims 1 to 3, characterized in that the recess (4) of the cylinder head (2) receiving the respective pressure sensor (5) and the sensor housing (6) or the sensor adapter (8) of the pressure sensor (5) received in the respective recess (4) of the cylinder head (2) are each cylindrically contoured on sections (13, 14) facing one another and spaced further from the combustion chamber (3) of the respective cylinder than the conically contoured sections (11, 12), wherein an outer diameter of the cylindrically contoured section (14) of the sensor housing (6) or sensor adapter (8) forming a defined clearance fit is smaller than an inner diameter of the cylindrically contoured section (13) of the recess receiving the pressure sensor (5).
5. Patenttivaatimuksen 4 mukainen polttomoottorikone, tunnettu siitä, että määritetyn välyssovituksen muodostamiseksi anturikotelon (6) tai an-turiadapterin (8) sylinterimäiseksi muotoillun osuuden (14) ulkoläpimitalla on e7-mittatoleranssi ja paineanturin (5) vastaanottavan syvennyksen (4) sylinterimäiseksi muotoillun osuuden (13) sisäläpimitalla on H7-mittatoleranssi identtisten nimellisläpimittojen kohdalla.
5. The internal combustion engine according to Claim 4, characterized in that for forming a defined clearance fit the outer diameter of the cylindrically contoured section (14) of the sensor housing (6) or sensor adapter (8) has an e7 dimension tolerance and the inner diameter of the cylindrically contoured section (13) of the recess (4) receiving the pressure sensor (5) has an H7 dimension tolerance with identical nominal diameters.
6. Patenttivaatimuksen 4 tai 5 mukainen polttomoottorikone, tunnettu siitä, että välyssovituksen muodostavan, sylinterimäiseksi muotoillun anturikotelon (6) tai anturiadapterin (8) osuuden (14) ja anturikotelon (6) tai an-turiadapterin (8) kartiomaiseksi muotoillun osuuden (12) väliin on muodostettu ulkokierre (17), ja että kulloisenkin paineanturin (5) vastaanottava sylinterin-kannen (2) syvennys (4) on muodostettu viereiseen, myöskin sylinterimäiseksi muotoiltuun osuuteen (15) sisäkierteettömästi.
6. The internal combustion engine according to Claim 4 or 5, characterized in that between the cylindrically contoured section (14) of the sensor housing (6) or sensor adapter (8) and the conically contoured section (12) of the sensor housing (6) of sensor adapter (8) forming the clearance fit an external thread (17) is formed, and in that the recess (4) of the cylinder head (2) receiving the respective pressure sensor (5, in an adjoining likewise cylindrically contoured section (15), is formed without internal thread.
7. Jonkin patenttivaatimuksen 1 - 6 mukainen polttomoottorikone, tunnettu siitä, että anturikotelon (6) tai anturiadapterin (8) sisätilan (7) kulloisenkin sylinterin polttotilaan (3) yhdistävällä syvennyksellä (10) on syvyys, joka on 0,5 kertaa - 10,0 kertaa sen läpimitta.
7. The internal combustion engine according to any one of the Claims 1 to 6, characterized in that a recess (10) coupling an interior space (7) of the sensor housing (6) or sensor adapter (8) to the combustion chamber (3) of the respective cylinder has a depth which amounts to between 0.5 times and 10.0 times the diameter of the same.
8. The internal combustion engine according to Claim 7, characterized in that the recess (10) coupling the interior space (7) of the sensor housing (6) or sensor adapter (8) to the combustion chamber (3) of the respective cylinder has a depth which amounts to between 0.5 times and 5.0 times, preferably between 1.0 times and 2.0 times the diameter of the same.
8. Patenttivaatimuksen 7 mukainen polttomoottorikone, tunnettu siitä, että anturikotelon (6) tai anturiadapterin (8) sisätilan (7) kulloisenkin sylinterin polttotilaan (3) yhdistävällä syvennyksellä (10) on syvyys, joka on 0,5 kertaa - 5,0 kertaa, edullisesti 1,0 kertaa - 2,0 kertaa sen läpimitta.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017113838.2A DE102017113838A1 (en) | 2017-06-22 | 2017-06-22 | Internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI20185554A FI20185554A (en) | 2018-12-23 |
| FI20185554A1 true FI20185554A1 (en) | 2018-12-23 |
Family
ID=64567983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20185554A FI20185554A1 (en) | 2017-06-22 | 2018-06-20 | Internal combustion engine |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7171260B2 (en) |
| KR (1) | KR102476046B1 (en) |
| CN (1) | CN109113890B (en) |
| DE (1) | DE102017113838A1 (en) |
| FI (1) | FI20185554A1 (en) |
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| DE586392C (en) * | 1933-10-20 | Rudolf Pawlikowski Dipl Ing | Cutting edge seal | |
| CS157335B1 (en) | 1972-04-26 | 1974-09-16 | ||
| DE20320754U1 (en) * | 1980-06-20 | 2005-02-24 | Stein, Günter | High pressure seal for threaded inserts in flap valves comprises a flat seal fitting arranged axially in front of or behind threads radially between a section of a housing of a threaded insert on one side |
| DE19634128A1 (en) | 1996-08-23 | 1998-02-26 | Dolmar Gmbh | Device for controlling the specific fuel injection quantity for single-cylinder two-stroke IC engine |
| JP4678981B2 (en) | 2001-04-12 | 2011-04-27 | 日本特殊陶業株式会社 | Spark plug unit |
| WO2004109248A1 (en) * | 2003-06-10 | 2004-12-16 | Danfoss A/S | A method for forming a pressure proof assembly between a component and house and such an assembly |
| JP4243239B2 (en) * | 2004-10-28 | 2009-03-25 | 本田技研工業株式会社 | Combustion pressure detector |
| JP4922822B2 (en) | 2007-05-11 | 2012-04-25 | 株式会社日本自動車部品総合研究所 | Combustion pressure sensor |
| FR2935797B1 (en) | 2008-09-08 | 2010-10-22 | Continental Automotive France | DEVICE INCORPORATING A PRESSURE SENSOR FOR MEASURING PRESSURES IN AN INTERNAL COMBUSTION ENGINE |
| WO2010040042A2 (en) * | 2008-10-03 | 2010-04-08 | Federal-Mogul Corporation | Compression sensor gasket and method of construction |
| DE102009050911B4 (en) * | 2009-10-26 | 2014-06-12 | Borgwarner Beru Systems Gmbh | Cylinder pressure sensor |
| DE102010043366A1 (en) * | 2010-11-04 | 2012-05-10 | Robert Bosch Gmbh | Device for media-tight connection of two high-pressure components |
| JP5699884B2 (en) * | 2011-09-27 | 2015-04-15 | トヨタ自動車株式会社 | Internal combustion engine |
| JP2013195163A (en) | 2012-03-16 | 2013-09-30 | Citizen Finetech Miyota Co Ltd | Internal combustion engine with combustion pressure detection device and combustion pressure detection device |
| CN203035347U (en) * | 2012-12-30 | 2013-07-03 | 吉林大学 | Pressure sensor sleeve for automotive diesel engines |
| DE102013222594A1 (en) * | 2013-03-12 | 2014-09-18 | Robert Bosch Gmbh | Special sealing geometry for exhaust gas sensors to create a high level of tightness |
| KR20140123127A (en) * | 2013-04-10 | 2014-10-22 | 현대중공업 주식회사 | Installation structure of combustion pressure sensor into cylinder head for dual fuel engine |
| JP6158846B2 (en) * | 2015-02-17 | 2017-07-05 | トヨタ自動車株式会社 | Pressure sensor |
| EP3276325A4 (en) * | 2015-03-24 | 2018-11-14 | Citizen Finedevice Co., Ltd. | Combustion pressure sensor |
| CN106197840A (en) * | 2016-06-29 | 2016-12-07 | 中国北方发动机研究所(天津) | The cylinder pressure instrument connection structure of high-power diesel engine cylinder head |
-
2017
- 2017-06-22 DE DE102017113838.2A patent/DE102017113838A1/en active Pending
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2018
- 2018-06-20 FI FI20185554A patent/FI20185554A1/en unknown
- 2018-06-21 JP JP2018117703A patent/JP7171260B2/en active Active
- 2018-06-22 CN CN201810651043.4A patent/CN109113890B/en active Active
- 2018-06-22 KR KR1020180072001A patent/KR102476046B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| FI20185554A (en) | 2018-12-23 |
| KR20190000322A (en) | 2019-01-02 |
| JP7171260B2 (en) | 2022-11-15 |
| CN109113890A (en) | 2019-01-01 |
| JP2019007487A (en) | 2019-01-17 |
| DE102017113838A1 (en) | 2018-12-27 |
| CN109113890B (en) | 2022-10-04 |
| KR102476046B1 (en) | 2022-12-08 |
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