DK149828B - INCORPORATION ENGINE WITH CRUSH, NAME CRYSTAL DIESEL ENGINE - Google Patents
INCORPORATION ENGINE WITH CRUSH, NAME CRYSTAL DIESEL ENGINE Download PDFInfo
- Publication number
- DK149828B DK149828B DK484478AA DK484478A DK149828B DK 149828 B DK149828 B DK 149828B DK 484478A A DK484478A A DK 484478AA DK 484478 A DK484478 A DK 484478A DK 149828 B DK149828 B DK 149828B
- Authority
- DK
- Denmark
- Prior art keywords
- base plate
- crankcase
- mass
- crankshaft
- engine
- Prior art date
Links
- 238000010348 incorporation Methods 0.000 title 1
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/22—Compensation of inertia forces
- F16F15/26—Compensation of inertia forces of crankshaft systems using solid masses, other than the ordinary pistons, moving with the system, i.e. masses connected through a kinematic mechanism or gear system
- F16F15/264—Rotating balancer shafts
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
i 149828 5 Opfindelsen angår en forbrændingsmotor med krumtap, navnlig en krydshoveddieselmotor, af den i krav l's indledning angivne art.This invention relates to an engine with a crankshaft, in particular a cross-head diesel engine, of the kind specified in the preamble of claim 1.
Under driften af en dieselmotor bliver nogle masser, 10 såsom stempel, stempelstang, krydshoved og plejlstang, bevæget frem og tilbage, medens andre masser, som krumtappe og piejlstangshoveder, derimod roterer.During operation of a diesel engine, some masses, such as piston, piston rod, crosshead and connecting rod, are moved back and forth, while other masses, such as crankshaft and dipstick heads, rotate.
Som følge af disse bevægelser og af de med tiden foranderlige masseaccelerationer opstår der en med tiden 15 foranderlig resulterende massekraft P, der virker som en indre kraft i motoren og som en ydre eller fri massekraft på fundamentet.As a result of these movements and of the mass accelerations that change over time, a variable mass mass P, which results in time, arises as an internal force in the motor and as an external or free mass force on the foundation.
Af en kinematisk og dynamisk analyse af krumtapdriften 20 fremgår, at denne massekraft P kan opfattes som en sum af to delkræfter Ρχ og P2, idet Ρχ er en funktion af den enkelte krumtapvinkel og P2 en funktion af den dobbelte krumtapvinkel. Ρχ betegnes som en massekraft af første orden og P2 som en massekraft af anden 25 orden.From a kinematic and dynamic analysis of crank operation 20, it can be seen that this mass force P can be regarded as a sum of two partial forces Ρχ and P2, since Ρχ is a function of the individual crank angle and P2 is a function of the double crank angle. Ρχ is designated as a first-order mass force and P2 as a second-order mass force.
Fysisk kan man tænke sig massekræfterne P erstattet af en sum af centrifugalkræfter af to modsat roterende masser, hvis centrifugalkraftkomposanter summerer 30 sig i motorens slagretning, medens komposanterne vin kelret derpå ophæver hinanden. Derved er vinkelhastigheden for disse roterende erstatningsmasser for den første orden lig med en vinkelhastighed aj af krumtapakslen, for den anden orden derimod lig med den dobbel- 149828 2 1 te vinkelhastighed 2&). Ved hjælp af sådanne modsat roterende masser kan massekræfterne P i hver cylinder udlignes enkeltvist ved rigtig vinkelforsætning i forhold til krumtaparmene. Ved flercylindermotorer 5 vil massekræfterne fra de enkelte drivværker til dels udligne hinanden.Physically, the mass forces P are thought to be replaced by a sum of centrifugal forces of two opposite rotating masses whose centrifugal force components sum up in the direction of stroke of the engine while the components of the wine then cancel each other. Thus, the angular velocity of these rotating substitutes for the first order is equal to an angular velocity aj of the crankshaft, in the second order, however, is equal to the double angular velocity 2 &). By means of such opposite rotating masses, the mass forces P in each cylinder can be offset individually by proper angular assumption relative to the crank arms. In the case of multi-cylinder engines 5, the mass forces from the individual drives will partly offset each other.
I praksis bliver massekraften af anden orden hyppigt udlignet ved hjælp af to ved enderne af krumtaphuset 10 anbragte, såkaldte masseudligningsdriwærker af anden orden. Et sådant drivværk består af en med vinkelhastigheden 2υύ roterende masse, der over et kædedriwærk bliver drevet fra krumtapakslen. Det er herved sædvanligt at anbringe disse drivværker i en betydelig af-15 stand fra krumtaphuset og at fastgøre deres lejeunderstøtninger umiddelbart til motorens fundament. Pladsbehovet er herved betydeligt, og der kan opstå bøjningssvingninger i skibet, eller ved stationære anlæg, uønskede frekvenser og svingninger i fundamentet, 20 hvad der kan føre til kostbare skader.In practice, the second-order mass force is frequently equalized by means of two second-order mass-compensation drives located at the ends of the crankcase 10. Such a drivetrain consists of a 2υ masse angular rotating mass which is driven over a chain drive from the crankshaft. Hereby, it is customary to place these drives at a considerable distance from the crankcase and to attach their bearing supports immediately to the engine foundation. The space requirement is thereby considerable and bending oscillations can occur in the ship, or at stationary installations, undesirable frequencies and oscillations in the foundation, 20 which can lead to costly damage.
Fra britisk patent nr. 403.223 kendes et udligningssystem til en firecylindret totaktsmotor med relativ lille effekt. Systemet har modvægte, som kun udligner 25 massekræfter af første orden. Nogle af disse modvægte er anbragt på to hjælpeaksler, som er lejret i krumtaphuset og ved siden af krumtapakslen og drives af krumtapakslen med samme omdrejningstal som denne. Ved den kendte motor er der ikke nogen grundplade og heller 30 ikke nogen lejeunderstøtning for masseudligningsværket, og det kendte udligningssystem er uegnet til store motorer.British Patent No. 403,223 discloses a compensating system for a four-cylinder two-stroke engine with relatively little power. The system has counterweights that equalize only 25 first-order mass forces. Some of these counterweights are mounted on two auxiliary shafts, which are mounted in the crankcase and adjacent to the crankshaft and are driven by the crankshaft with the same speed as this one. In the known motor there is no base plate and no bearing support for the mass equalization plant, and the known equalization system is unsuitable for large motors.
Fra britisk patent nr. 972.544 kendes ganske vist 3 149828 1 et udligningssystem til massekræfter af anden orden, hvorhos modvægtene er anbragt i området for krumtapakslens ende. Modvægtenes aksler er imidlertid lejret i krumtaphuset. Tilsvarende overføres massekræfterne 5 af anden orden under motorens drift ikke via grundpladen til fundamentet som normalkræfter. Det kendte system er heller ikke anvendeligt til motorer med stor effekt.British Patent No. 972,544 does, however, disclose a second order equalization system for which the counterweights are located in the region of the crankshaft end. The counterbalance shafts, however, are enclosed in the crankcase. Similarly, the second-order mass forces 5 during engine operation are not transmitted via the base plate to the foundation as normal forces. The known system is also not applicable to high power motors.
10 Den foreliggende opfindelse tager sigte på at angive en forbrændingsmotor af den omhandlede art, ved hvilken faren for kostbare skader ved frembringelse af uønskede svingninger er undgået og samtidig anlæggets byggelængde kan gøres kortere.It is an object of the present invention to provide an internal combustion engine of the kind in which the danger of costly damage in producing undesirable oscillations is avoided and at the same time the construction length of the plant can be reduced.
1515
Dette opnås ifølge opfindelsen ved, at motoren er udformet som angivet i krav l's kendetegnende del.This is achieved according to the invention in that the motor is designed as defined in the characterizing part of claim 1.
Ved denne udformning opnår man, at massekraften umid-20 delbart kan overføres til grundpladen og via denne til fundamentet som normalkræfter, idet et af masseud-ligningsdrivværkerne af anden orden er anbragt i umiddelbar nærhed af krumtaphuset og fastgjort med sin lejeunderstøtning til grundfladen. Bøjningssvingninger-25 ne i skibet eller ved stationære anlæg i fundamentet bliver herved dæmpet, og faren for kostbare skader bliver undgået. Besparelsen af byggelængde er ligeledes betydelig, hvilket ikke kan opnås ved de i ovennævnte britiske patenter beskrevne værker.In this embodiment, it is obtained that the mass force can be immediately transferred to the base plate and via it to the foundation as normal forces, one of the second order mass equalization drives being located in the immediate vicinity of the crankcase and fixed with its bearing support to the base surface. The bending oscillations in the ship or at stationary installations in the foundation are thereby attenuated and the danger of costly damage is avoided. The saving of construction length is also considerable, which cannot be achieved by the works described in the above-mentioned British patents.
3030
Ved en foretrukken udførelsesform for opfindelsen er der anbragt et masseudligningsdrivværk af anden orden i umiddelbar nærhed af hver af de to krumtaphusender. Lejeunderstøtningerne for begge drivværker 149828 4 1 er fastgjort til en til dette formål forlænget grundplade. Herved kan fastgørelsen ske ved sammenboltning eller svejsning. De i et eller to stykker udførte lejeunderstøtninger kan hver have en med krumtapakslen 5 koaksial Udsparing. Disse udsparinger har det formål på motorens drivside at omgive en på krumtapakslen fast anbragt forskydningsring med trykleje og ved den frie ende af motoren at omgive en på krumtapakslen fast anbragt drejningssvingningsdæmper eller på krum-10 tapakslen fastgjorte modvægte. Drivkædehjul til de to masseudligningsdriwærker er fortrinsvis anbragt fast på krumtapakslen.In a preferred embodiment of the invention, a second order mass equalization drive is disposed in the immediate vicinity of each of the two crankcase ends. The bearing supports for both drives are attached to a base plate extended for this purpose. In this way the fastening can be done by bolting or welding. The bearing supports made in one or two can each have a coaxial recess with the crankshaft 5. These recesses have the purpose on the motor side of the motor to surround a thrust bearing fixedly mounted on the crankshaft and to surround at the free end of the motor a pivot vibration damper fixed on the crankshaft or counterbalances fixed on the crankshaft. The drive sprocket for the two mass equalization drives is preferably mounted on the crankshaft.
Opfindelsen forklares nærmere under henvisning til 15 tegningen, på hvilken fig. 1 viser, til dels i snit og skematisk set forfra, en udførelsesform for dieselmotoren med krumtapaksel og med to masse-20 udligningsdriwærker af anden orden, og fig. 2 samme dieselmotor set fra siden.The invention is further explained with reference to the drawing, in which: FIG. 1 shows, partly in section and schematic front view, an embodiment of the diesel engine with crankshaft and with two second order mass equalization drives; and FIG. 2 the same diesel engine seen from the side.
25 I figurerne har ens dele samme henvisningstal.25 In the figures, similar parts have the same reference numerals.
Til en grundplade 2 er der fastgjort to drivværkshuse 7 og et krumtaphus 3. I det indre af huset 3 findes stempler og cylindre, der ikke er vist. I grundpladen 30 er en krumtapaksel 1 lejret drejeligt. På krumtapakslen er der på motorens drivside, til venstre i fig. 1, fast anbragt en forskydningsring 5, der drejer sig i et trykleje 4, og ved den frie ende af motoren er en omdrejningssvingningsdæmper 6 fast anbragt.Two drive housings 7 and a crankcase 3 are attached to a base plate 2. Pistons and cylinders are not shown in the interior of the housing 3. In the base plate 30, a crankshaft 1 is mounted pivotally. On the crankshaft there is on the drive side of the engine, to the left in fig. 1, a displacement ring 5 is fixedly rotated in a pressure bearing 4, and at the free end of the motor a rotary vibration damper 6 is fixedly fixed.
5 149828 1 I de to driwærkshuse 7 i nærheden af de to ender af krumtaphuset 3 er der i hver af dem anbragt et masseudligningsdriwærk 8 af anden orden. Hvert af disse drivværker 8 består af to drejeligt lejrede 5 masser 9, der roterer modsat og med det dobbelte omdrejningstal af krumtapakslen, og som er drejet ved hjælp af et kædetræk 10 fra krumtapakslen 1. Kædetrækket 10 består af et på krumtapakslen 1 fast anbragt drivhjul 11, et strammehjul 12, to drevne hjul 13 10 og en drivkæde 14, der forbinder hjulene 11, 12 og 13.In the two drive housings 7 in the vicinity of the two ends of the crankcase 3, a mass equalization drive 8 of the second order is arranged in each of them. Each of these drives 8 consists of two pivotally mounted 5 masses 9 which rotate opposite and with the double speed of the crankshaft and which are rotated by a chain pull 10 from the crankshaft 1. The chain drive 10 consists of a drive wheel fixed to the crankshaft 1 11, a tightening wheel 12, two driven wheels 13 10 and a drive chain 14 connecting the wheels 11, 12 and 13.
En lejeunderstøtning 15 for hvert masseudligningsdriv-værk 8 er fastgjort til grundpladen 2, idet denne er forlænget noget ud over krumtaphuset 3. Derved 15 bliver masseudligningskræfter umiddelbart overført til grundpladen 2.A bearing support 15 for each mass equalization drive 8 is attached to the base plate 2, which is extended slightly beyond the crankcase 3. Thus, 15 equalizing forces are immediately transferred to the base plate 2.
Lejeunderstøtningen 15 på dieselmotorens drivside har en i forhold til krumtappens aksel 1 koaksial 20 udsparing og omgiver med udsparingen tryklejet 4 og en i dette roterende forskydningsring 5, hvorimod lejeunderstøtningen 15 ved den frie ende af motoren, der ligeledes er forsynet med en tilsvarende udsparing, omgiver drejningssvingningsdæmperen 6. I stedet for 25 drejningssvingningsdæmperen 6 kan der f.eks. findes modvægte, der så også kan være omgivet af lejeunderstøtningen.The bearing support 15 on the drive side of the diesel engine has a coaxial recess 20 with respect to the shaft 1 of the crankshaft and surrounds with the recess the pressure bearing 4 and one in this rotating displacement ring 5, whereas the bearing support 15 at the free end of the engine, which is also provided with a corresponding recess, rotary vibration damper 6. Instead of the rotary vibration damper 6, e.g. There are counterweights that can then also be surrounded by the rental support.
Hver lejeunderstøtning 15 består i fig. 1 af to plade-30 formede dele, der strækker sig på begge sider af de tilhørende masser 9, men dog også kan være udformet i et stykke. Endvidere kan de være fast sammenboltet eller svejset sammen med grundpladen 2.Each bearing support 15 consists of FIG. 1 of two plate-shaped parts extending on both sides of the associated masses 9, but may also be formed in one piece. Furthermore, they may be firmly bolted or welded together with the base plate 2.
6 169828 1 De to masseudligningsdrivværker behøver ikke at være fastgjort til grundpladen i umiddelbar nærhed af krumtaphusets ender. Onder visse omstændigheder er det også tilstrækkeligt at anbringe kun et af masseudlig-5 ningsdriwærkerne på grundpladen.6 The two mass equalization drives do not need to be attached to the base plate near the ends of the crankcase. Under certain circumstances, it is also sufficient to place only one of the mass equalization drives on the base plate.
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1356177 | 1977-11-08 | ||
CH1356177A CH622858A5 (en) | 1977-11-08 | 1977-11-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
DK484478A DK484478A (en) | 1979-05-09 |
DK149828B true DK149828B (en) | 1986-10-06 |
DK149828C DK149828C (en) | 1987-03-02 |
Family
ID=4393473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK484478A DK149828C (en) | 1977-11-08 | 1978-10-31 | INCORPORATION ENGINE WITH CRUSH, NAME CRYSTAL DIESEL ENGINE |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5481470A (en) |
CH (1) | CH622858A5 (en) |
DE (1) | DE2757332C2 (en) |
DK (1) | DK149828C (en) |
GB (1) | GB2007307B (en) |
IT (1) | IT1100142B (en) |
SU (1) | SU1061701A3 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4509378A (en) * | 1983-02-22 | 1985-04-09 | Brown Arthur E | Reciprocating machines with both primary and secondary counter rotating balancers |
DE3312105A1 (en) * | 1983-04-02 | 1984-10-04 | Volkswagenwerk Ag, 3180 Wolfsburg | Mass-balancing device |
US4712436A (en) * | 1985-10-02 | 1987-12-15 | Brown Arthur E | Balancers for various reciprocating machines using rotating balance weights |
JP3225153B2 (en) * | 1994-01-11 | 2001-11-05 | 三信工業株式会社 | 4 cycle engine for outboard motor |
JP5190808B2 (en) * | 2009-08-20 | 2013-04-24 | スズキ株式会社 | Engine primary balancer |
FR3111172A1 (en) * | 2020-06-09 | 2021-12-10 | Renault | Balancing device of a 3-cylinder internal combustion engine by 2 unbalanced gears |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR997076A (en) * | 1948-10-18 | 1951-12-31 | Henry Meadows Ltd | Balancing device by rotating shafts for motors, compressors and similar machines of the reciprocating type |
-
1977
- 1977-11-08 CH CH1356177A patent/CH622858A5/de not_active IP Right Cessation
- 1977-12-22 DE DE2757332A patent/DE2757332C2/en not_active Expired
-
1978
- 1978-10-24 IT IT29025/78A patent/IT1100142B/en active
- 1978-10-31 DK DK484478A patent/DK149828C/en not_active IP Right Cessation
- 1978-11-04 SU SU782683753A patent/SU1061701A3/en active
- 1978-11-07 JP JP13723278A patent/JPS5481470A/en active Granted
- 1978-11-08 GB GB7843679A patent/GB2007307B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT7829025A0 (en) | 1978-10-24 |
DE2757332C2 (en) | 1983-11-10 |
DE2757332A1 (en) | 1979-05-10 |
GB2007307B (en) | 1982-10-06 |
DK149828C (en) | 1987-03-02 |
DK484478A (en) | 1979-05-09 |
IT1100142B (en) | 1985-09-28 |
JPS5644297B2 (en) | 1981-10-19 |
SU1061701A3 (en) | 1983-12-15 |
JPS5481470A (en) | 1979-06-28 |
GB2007307A (en) | 1979-05-16 |
CH622858A5 (en) | 1981-04-30 |
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Legal Events
Date | Code | Title | Description |
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PBP | Patent lapsed |