NO160597B - ELECTRIC MOTOR HEATER. - Google Patents

ELECTRIC MOTOR HEATER. Download PDF

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Publication number
NO160597B
NO160597B NO864533A NO864533A NO160597B NO 160597 B NO160597 B NO 160597B NO 864533 A NO864533 A NO 864533A NO 864533 A NO864533 A NO 864533A NO 160597 B NO160597 B NO 160597B
Authority
NO
Norway
Prior art keywords
cup
engine
bend
projecting end
opening
Prior art date
Application number
NO864533A
Other languages
Norwegian (no)
Other versions
NO160597C (en
NO864533D0 (en
NO864533L (en
Inventor
Finn Ulvatne
Original Assignee
Adax As
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 Adax As filed Critical Adax As
Priority to NO864533A priority Critical patent/NO160597C/en
Publication of NO864533D0 publication Critical patent/NO864533D0/en
Priority to SE8704030A priority patent/SE464587B/en
Priority to FI874945A priority patent/FI874945A/en
Priority to DK592087A priority patent/DK592087A/en
Publication of NO864533L publication Critical patent/NO864533L/en
Publication of NO160597B publication Critical patent/NO160597B/en
Publication of NO160597C publication Critical patent/NO160597C/en

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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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B9/00—Connections of rods or tubular parts to flat surfaces at an angle
    • F16B9/07—Connections of rods or tubular parts to flat surfaces at an angle involving plastic or elastic deformation when assembling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
    • F02N19/10—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B9/00—Connections of rods or tubular parts to flat surfaces at an angle
    • F16B9/05—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member
    • F16B9/056—Connections of rods or tubular parts to flat surfaces at an angle by way of an intermediate member the intermediate member extending through the flat surface; the rod or tubular part extending through the flat surface
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/20—Connections with hook-like parts gripping behind a blind side of an element to be connected
    • F16B2200/205—Connections with hook-like parts gripping behind a blind side of an element to be connected the hook being a separate retainer

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Gasket Seals (AREA)
  • Power Steering Mechanism (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)

Description

Oppfinnelsen angår en motorvarmer med elektrisk varmeelement for innsetting i forbrenningsmotorers kjølesystem. The invention relates to an engine heater with an electric heating element for insertion into the cooling system of internal combustion engines.

Elektriske motorvarmere benyttes i stigende grad for forvarming av forbrenningsmotorers motorblokker før oppstarting under kuldeperioder. Slike motorvarmere benyttes ibåde for oppvarming av oljesystemet i luftkjølte motorer og for kjøle-vannsystemet i vannavkjølte motorer. Electric engine heaters are increasingly used for preheating the engine blocks of internal combustion engines before start-up during cold periods. Such engine heaters are used both for heating the oil system in air-cooled engines and for the cooling water system in water-cooled engines.

Motorvarmeren monteres i regelen i en allerede eksi-sterende boring i motorblokken, for vannavkjølte motorer benyttes i regelen i frostpluggåpning. The engine heater is usually mounted in an already existing bore in the engine block, because water-cooled engines are usually used in the frost plug opening.

For feste av motorvarmeren til motorblokken benyttes ulike prinsipper, blant annet ved utnyttelse av friksjonen mellom en konisk del på motorvarmeren og boringen eller åpningen i motorblokken. Ved andre utførelser benyttes en tverrgående stang på innsiden av åpningen som griper over diametralt motstående kanter i åpningen og som aktiveres med en skrue som tiltrekkes fra utsiden. Different principles are used to attach the engine heater to the engine block, including by utilizing the friction between a conical part of the engine heater and the bore or opening in the engine block. In other designs, a transverse rod is used on the inside of the opening which grips over diametrically opposite edges in the opening and which is activated with a screw which is attracted from the outside.

For å utnytte friksjonen for feste av motorvarmeren, må det benyttes så store trykkrefter i motorblokkens hull at faren for godssprenging er meget stor. I tillegg stilles det store krav til selve monteringen. In order to utilize the friction for attaching the engine heater, such great compressive forces must be used in the engine block's hole that the risk of goods exploding is very great. In addition, great demands are placed on the assembly itself.

Prinsippet med bruk av en tverrgående stang lider både av en svakhet med store muligheter for lekkasje i forbindelse med den gjennomgående skrue som benyttes til tilstramming-en og en innsnevring av vanngjennomstrømmingsarealet for motor-ens kjolevæske på grunn av tverrstangen, noe som kan føre til meget høy temperatur i elementet grunnet nedsatt sirkula-sjon forbi dette. I tillegg vil en gjengroing av elementet med dermed følgende nedsatt levetid kunne oppstå av samme årsak. The principle of using a transverse rod suffers both from a weakness with a high possibility of leakage in connection with the through screw used for tightening and a narrowing of the water flow area for the engine's cooling fluid due to the transverse rod, which can lead to very high temperature in the element due to reduced circulation past this. In addition, overgrowth of the element with the resulting reduced lifespan could occur for the same reason.

For utforming av motorvarmeren stilles krav til enkel montering også i de tilfeller hvor plassforholdene er sterkt begrenset. Videre bør motorvarmerens utvendige del kunne dreies for å justeres til gunstigste stilling også etter innsetting. En slik mulighet til etterjustering foreligger ikke blant annet ved den friksjonsbaserte monteringsmåte. For the design of the engine heater, demands are made for easy assembly, even in cases where space conditions are severely limited. Furthermore, the outer part of the engine heater should be able to be turned to adjust to the most favorable position even after insertion. Such an option for readjustment does not exist, among other things, with the friction-based mounting method.

I tillegg til det forannevnte stilles store krav til motorvarmerens tetthet etter montering, også over tid hvor støt og rustelser ofte vil forekomme. In addition to the above, great demands are placed on the engine heater's tightness after installation, also over time where shocks and rustling will often occur.

Med motorvarmeren ifølge oppfinnelsen tilfredsstilles de forannevnte krav til enkel montering, etterjustering, minimal påvirkning av gjennomstrømmingsarealet og god tetthet også over tid. With the engine heater according to the invention, the aforementioned requirements for simple assembly, readjustment, minimal influence on the flow area and good tightness also over time are satisfied.

Disse fordeler og mål oppnås med motorvarmeren ifølge oppfinnelsen med de i kravenes karakteriserende deler anførte trekk. These advantages and goals are achieved with the engine heater according to the invention with the features listed in the characterizing parts of the requirements.

På tegningen viser fig. 1 et aksialt snitt av en utfør-else av en motorvarmer ifølge oppfinnelsen under det første trinn av monteringen, fig. 2 viser motorvarmeren på fig. 1 under et andre trinn av monteringen og fig. 3 viser motorvarmeren på fig. 1 ferdig montert i en motorblokk. In the drawing, fig. 1 an axial section of an embodiment of an engine heater according to the invention during the first stage of assembly, fig. 2 shows the engine heater in fig. 1 during a second step of the assembly and fig. 3 shows the engine heater in fig. 1 fully assembled in an engine block.

Motorvarmeren ifølge oppfinnelsen omfatter et. varmeelement som består av den varmeavgivende del 9, to skaft 2 og en tilkoplingsdel 12 for elektrisk strømtilførsel. En kopp 1, fortrinnsvis av stål, omslutter en vesentlig del av den varmeavgivende del 9 og de to skaft 2 er ført gjennom koppens 1 bunn og festet til bunnen ved hjelp av hylser 10 rundt skaftene 2 og innsatt i en tilsvarende åpning i koppens bunn. Ved rettet aksialt trykk mot hver hylses 10 ende, presses hylsen fra koppens utside inn i det konisk formede hull i koppens bunn rundt skaftene, slik at hylsene bringes til å flyte på en slik måte at det dannes en tettende forbindelse mellom skaftene 2 og koppens 1 bunn, samtidig som det i koppens indre dannes en krave som bidrar til å sikre feste mellom skaftene 2 og koppens 1 bunn via hylsen 10. The engine heater according to the invention comprises a. heating element consisting of the heat-emitting part 9, two shafts 2 and a connection part 12 for electric power supply. A cup 1, preferably made of steel, encloses a substantial part of the heat-emitting part 9 and the two shafts 2 are passed through the bottom of the cup 1 and attached to the bottom by means of sleeves 10 around the shafts 2 and inserted into a corresponding opening in the bottom of the cup. By directed axial pressure against the end of each sleeve 10, the sleeve is pressed from the outside of the cup into the conically shaped hole in the bottom of the cup around the shafts, so that the sleeves are made to float in such a way that a sealing connection is formed between the shafts 2 and the cup 1 bottom, while at the same time a collar is formed in the interior of the cup which helps to secure attachment between the shafts 2 and the bottom of the cup 1 via the sleeve 10.

Nær og gjennom koppens 1 åpne ende er anordnet to diametralt motstående hull 13 og 14 gjennom hvilke en metall-stifts 15 to ender 7 og 8 rager ut. Som vist på fig. 3 er de to ender 7 og 8 innrettet til å ligge an mot innsiden av en motorblokk 3 etter at motorvarmeren er ført gjennom en tilsvarende åpning 4 i motorblokken 3. For å oppnå et trykk fra endene 7 og 8 mot innsiden av blokken 3, er en lukket skruelinjeformet fjærring 5 anordnet strammende mot utsiden av motorblokkens^ åpning 4 og samtidig mot et konisk parti 12 på koppen 1, idet den kraft endene 7 og 8 presses mot blokken 3 med, bestemmes av den spiralformede fjærrings 5 spenning i samvirke med den koniske dels 12 plassering og konisitet. En tetningsring„ fortrinnsvis i form av en O-ring 6 er anordnet i et tilsvarende spor 11 mellom de utragende ender 7 og 8 og den fjærende ring 5. O-ringen 6 ligger tettende an mot den i regelen konisk utformede åpning 4 i motorblokken 3. Near and through the open end of the cup 1, two diametrically opposite holes 13 and 14 are arranged through which the two ends 7 and 8 of a metal pin 15 protrude. As shown in fig. 3, the two ends 7 and 8 are arranged to rest against the inside of an engine block 3 after the engine heater has been passed through a corresponding opening 4 in the engine block 3. In order to obtain a pressure from the ends 7 and 8 against the inside of the block 3, a closed helical spring ring 5 arranged tightening against the outside of the engine block's opening 4 and at the same time against a conical part 12 on the cup 1, the force with which the ends 7 and 8 are pressed against the block 3 is determined by the tension of the spiral spring ring 5 in cooperation with the conical part 12 location and conicity. A sealing ring, preferably in the form of an O-ring 6, is arranged in a corresponding groove 11 between the projecting ends 7 and 8 and the resilient ring 5. The O-ring 6 rests tightly against the normally conically designed opening 4 in the engine block 3 .

Ved hjelp av de utragende ender 7 og 8, O-ringen 6 og den fjærende ring 5 oppnås et tettende feste av motorvarmerens kopp 1 til motorblokken 3. Ved utformingen av den skrue-linjeformede fjæren e ring 5 opptas tolleranser innenfor et stort område og samtidig er motorvarmeren derved tilpasnings-dyktig til alle de godstykkelser som benyttes i motorblokkveg-gene. Ved denne spesielle utforming av feste mellom motorvarmeren og motorblokken 3 tillates således også en dreiing av motorvarmeren for etterjustering etter innsetting, noe som kan forenkles ved et aksialt trykk mot koppens 1 bunn. With the help of the protruding ends 7 and 8, the O-ring 6 and the spring ring 5, a tight attachment of the engine heater cup 1 to the engine block 3 is achieved. In the design of the helical spring e ring 5, tolerances are accommodated within a large area and at the same time the engine heater is thereby adaptable to all the material thicknesses used in the engine block walls. With this particular design of attachment between the engine heater and the engine block 3, a rotation of the engine heater is thus also permitted for readjustment after insertion, which can be simplified by an axial pressure against the bottom of the cup 1.

Slik det fremgår av fig. 3 som viser den ferdig mon-terte motorvarmeren i motblokken 3, er motorvarmerens i kjøle-systemet innragende deler av minimal utstrekning og motorvarmeren ifølge oppfinnelsen vil således ikke begrense gjennom-strømningen . As can be seen from fig. 3 which shows the fully assembled engine heater in the counter block 3, the protruding parts of the engine heater in the cooling system are of minimal extent and the engine heater according to the invention will thus not limit the flow through.

De gjennom koppens 1 hull utragende ender 7 og 8 av metallstiften 15 må, for innføring av motorvarmerens kopp 1 i åpning 4 i motorblokken 3, presses inn slik at de flukter med koppens utside for dermed å kunne passere gjennom åpningen 4. For å kunne oppnå en slik flukting på en måte som gjør monteringen hurtig og enkel, er metallstiften 15 utført som vist på tegningen, av et fjærende materiale hvor den utragende ende 7 fortrinnsvis er ombøyd slik at denne ende, likeledes også den andre utragende ende 8, er dobbel. Fra den utragende ende 7 forløper metallstiften 15 gjennom hullet 14 og diametralt mot det motstående hull 13, men avbøyd mot koppens 1 bunn og ligger an mot koppens motstående indre side med en ombøyning 16 som via en ytterligere ombøyning 17 er forbundet med den andre utragende ende 8. The ends 7 and 8 of the metal pin 15 protruding through the hole of the cup 1 must, for the introduction of the engine heater's cup 1 into the opening 4 in the engine block 3, be pressed in so that they are flush with the outside of the cup in order to be able to pass through the opening 4. In order to achieve such a leveling in a way that makes assembly quick and easy, the metal pin 15 is made, as shown in the drawing, of a springy material where the projecting end 7 is preferably bent so that this end, likewise the other projecting end 8, is double. From the protruding end 7, the metal pin 15 runs through the hole 14 and diametrically towards the opposite hole 13, but deflected towards the bottom of the cup 1 and rests against the opposite inner side of the cup with a bend 16 which is connected to the other protruding end via a further bend 17 8.

Som vist på tegningen har metallstif ten 15 en knekk 18 ved inngangen til ombøyningen 16, idet strekningen mellom knekket 18 og den utragende ende 17 fortrinnsvis er i det vesentlige rettlinjet. As shown in the drawing, the metal pin 15 has a kink 18 at the entrance to the bend 16, the stretch between the kink 18 and the projecting end 17 being preferably essentially straight.

Ved radialt trykk innad mot den utragende ende 7, som vist i fig. 1, vil, som vist på fig. 2 metallstif tens 15 rettlinjede del bøyes som vist ved 19, ved at metallstiften ruller på den første ombøyning 16 og dermed trekker den andre utragende ende 8( radialt inn gjennom hullet 13 inntil også denne ende flukter med koppens 1 utside. In case of radial pressure inwards towards the projecting end 7, as shown in fig. 1, will, as shown in fig. 2 The rectilinear part of the metal pin 15 is bent as shown at 19, by the metal pin rolling on the first bend 16 and thereby pulling the second projecting end 8( radially in through the hole 13 until this end also aligns with the outside of the cup 1.

Dette kam på enklest måte oppnås ved at koppen 1 presses slik mot åpningens 4 innside at den utragende ende 7 for-skyves inn i hullet 14, hvoretter koppen presses inn gjennom åpningen 4 idet den andre utragende ende 8 dermed likeledes flukter med koppens utside bg O-ringen 6 presses tettende mot åpningens 4 periferi. Ved fortsatt press av koppen 1 gjennom åpningen 4, vil den fjærende ring 5 komme til anlegg mot motorblokkens 3 utside og progressivt spennes når koppen skyves inn, inntil de utragende ender 7 og 8 går fri av åpningen 4 og fjærende spretter ut gjennom hullene 13 og 14 på innsiden av blokken 3. Ved hensiktsmessig valg av den fjærende ring 15 og det koniske partis 12 konisitet oppnås et låsetrykk mellom ringen 15 , O-ringen 6, de utragende ender 7 og 8, og motorblokken 3, til at motorvarmeren er tettende og varig fast forbundet med blokken 3. This comb is achieved in the simplest way by the cup 1 being pressed against the inside of the opening 4 in such a way that the projecting end 7 is pushed into the hole 14, after which the cup is pressed in through the opening 4, the other projecting end 8 thus also aligning with the outside of the cup bg O -the ring 6 is pressed tightly against the periphery of the opening 4. With continued pressure of the cup 1 through the opening 4, the springy ring 5 will come into contact with the outside of the engine block 3 and progressively tighten when the cup is pushed in, until the projecting ends 7 and 8 are released from the opening 4 and springy spring out through the holes 13 and 14 on the inside of the block 3. By appropriate selection of the spring ring 15 and the conicity of the conical part 12, a locking pressure is achieved between the ring 15, the O-ring 6, the protruding ends 7 and 8, and the engine block 3, so that the engine heater is tight and permanently attached to the block 3.

Motorvarmeren ifølge oppfinnelsen kan monteres uten å måtte fjerne manifold, eksosrør eller andre nærliggende motorkomponenter, monteringen er hurtig, enkel og sikker og krever liten opplæring av montøren, idet motorvarmeren etter monteringen med letthet kan dreies for nøyaktig ønsket stilling. The engine heater according to the invention can be installed without having to remove the manifold, exhaust pipe or other nearby engine components, the installation is quick, simple and safe and requires little training on the part of the installer, as the engine heater can easily be turned after installation for the exact desired position.

Claims (2)

1. Motorvarmer med elektrisk varmeelement (9) for innsetting i forbrenningsmotorers kjølesystem, KARAKTERISERT VED at varmeelementets to skaft (2) er ført gjennom og med en mellomliggende, fra begge sider sammentrykket hylse (10) fast forbundet med bunnen i en kopp (1) som i det vesentlige omslutter varmeelementets varmeavgivende del (9), at koppen (1) nær dens åpne ende har en i et spor (11) innlagt O-ring (6) for tetning mot den indre periferi i en åpning (4) i motorblokken (3) at to diametralt motstående hull (13, 14) er anordnet nær koppens (1) åpne ende, idet en fjærende metalltråd. (15) forløper mellom de to hull (13, 14) og rager ut fra begge hull for anlegg mot motorblokkens (3) innside etter montering, idet tråden har en iboende elastisitet som sikrer at de utragende ender (7, 8), etter innsetting av koppen (1) i blokkens (3) åpning (4), fjærer ut for anlegg mot blokkens bakside, at koppens (1) ytre har en konisk del (12) med økende diameter fra sporet (11) mot koppens bunn, idet en lukket skruelinjeformet fjærende ring (5) er anordnet rundt koppen på det koniske parti (12) og etter motorvarmerens montering ligger an med stor kraft mot motorblokkens (3) utside omkring motorblokkens åpning (4) og således sikrer at koppen (1) med stor kraft presses ut av åpningen (4), og holdes av trådens ( 15) mot motorblokkens innside anliggende utragende ender (7, 8).1. Engine heater with electric heating element (9) for insertion in the cooling system of internal combustion engines, CHARACTERIZED IN THAT the two shafts (2) of the heating element are led through and with an intermediate sleeve (10) compressed from both sides firmly connected to the bottom of a cup (1) which essentially encloses the heating element's heat-emitting part (9), that the cup (1) near its open end has an O-ring (6) inserted in a groove (11) for sealing against the inner periphery in an opening (4) in the engine block (3) that two diametrically opposed holes (13, 14) are arranged near the open end of the cup (1), being a springy metal wire. (15) extends between the two holes (13, 14) and protrudes from both holes for contact with the inside of the engine block (3) after installation, as the thread has an inherent elasticity which ensures that the protruding ends (7, 8) after insertion of the cup (1) in the opening (4) of the block (3), springs out for contact against the back of the block, that the outside of the cup (1) has a conical part (12) with increasing diameter from the groove (11) towards the bottom of the cup, as a closed helically springy ring (5) is arranged around the cup on the conical part (12) and after the engine heater has been installed it rests with great force on the outside of the engine block (3) around the opening (4) of the engine block and thus ensures that the cup (1) with great force is pressed out of the opening (4), and is held by the protruding ends (7, 8) of the wire (15) against the inside of the engine block. 2. Motorvarmer ifølge krav 1, KARAKTERISERT VED at den fjærende metalltråd (15) forløper fra den første utragende ende (7) gjennom hullet (14), i det vesentlige i rett linje diametralt, men avbøyd mot bunnen, mot motstående innside av koppen, her har en ombøyning (16) samt en ytterligere om-bøyning (17) og den dermed forbundne andre utragende ende (8), og at metalltråden (15) nær den første ombøyning (16), har et knekk (18) som sikrer at metalltrådens (15) i det vesentlige rettlinjede del, ved radialt trykk mot den første utragende ende (7), bøyes (19) nær knekket (18) idet metalltråden derved ruller på den første ombøyning (16) og løfter den andre ombøyning (17) med den andre utragende ende (8) slik at den andre utragende ende presses radialt inn i hullet (13) til flukting med koppens ytre periferi når den første utragende ende (7) likeledes flukter med koppens ytre periferi.2. Engine heater according to claim 1, CHARACTERIZED IN THAT the springy metal wire (15) runs from the first projecting end (7) through the hole (14), essentially in a straight line diametrically, but deflected towards the bottom, towards the opposite inside of the cup, here has a bend (16) as well as a further bend (17) and the associated second projecting end (8), and that the metal wire (15) close to the first bend (16) has a kink (18) which ensures that the substantially straight part of the metal wire (15), by radial pressure against the first projecting end (7), bends (19) close to the bend (18) as the metal wire thereby rolls on the first bend (16) and lifts the second bend (17) with the second projecting end (8) so that the second projecting end is pressed radially into the hole (13) to align with the cup's outer periphery when the first projecting end (7) also aligns with the cup's outer periphery.
NO864533A 1986-11-13 1986-11-13 ELECTRIC MOTOR HEATER. NO160597C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NO864533A NO160597C (en) 1986-11-13 1986-11-13 ELECTRIC MOTOR HEATER.
SE8704030A SE464587B (en) 1986-11-13 1987-10-16 Electric engine pre-heater
FI874945A FI874945A (en) 1986-11-13 1987-11-09 ELEKTRISK MOTORVAERMARE.
DK592087A DK592087A (en) 1986-11-13 1987-11-11 ELECTRIC MOTOR HEATER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO864533A NO160597C (en) 1986-11-13 1986-11-13 ELECTRIC MOTOR HEATER.

Publications (4)

Publication Number Publication Date
NO864533D0 NO864533D0 (en) 1986-11-13
NO864533L NO864533L (en) 1988-05-16
NO160597B true NO160597B (en) 1989-01-23
NO160597C NO160597C (en) 1989-05-03

Family

ID=19889368

Family Applications (1)

Application Number Title Priority Date Filing Date
NO864533A NO160597C (en) 1986-11-13 1986-11-13 ELECTRIC MOTOR HEATER.

Country Status (4)

Country Link
DK (1) DK592087A (en)
FI (1) FI874945A (en)
NO (1) NO160597C (en)
SE (1) SE464587B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989006755A1 (en) * 1988-01-25 1989-07-27 Defa Eltech A.S A mounting device for mounting a heating element of a block heater on a motor block

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE468101B (en) * 1991-04-24 1992-11-02 Hasselfors Preciform Ab DEVICE FOR INSTALLATION OF MOTOR HEATERS IN CYLINDER BLOCK

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989006755A1 (en) * 1988-01-25 1989-07-27 Defa Eltech A.S A mounting device for mounting a heating element of a block heater on a motor block

Also Published As

Publication number Publication date
NO160597C (en) 1989-05-03
DK592087A (en) 1988-05-14
FI874945A0 (en) 1987-11-09
SE8704030L (en) 1988-05-14
DK592087D0 (en) 1987-11-11
NO864533D0 (en) 1986-11-13
SE8704030D0 (en) 1987-10-16
SE464587B (en) 1991-05-13
NO864533L (en) 1988-05-16
FI874945A (en) 1988-05-14

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