EP0857281B1 - Sheathed element glow plug - Google Patents

Sheathed element glow plug Download PDF

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Publication number
EP0857281B1
EP0857281B1 EP97930334A EP97930334A EP0857281B1 EP 0857281 B1 EP0857281 B1 EP 0857281B1 EP 97930334 A EP97930334 A EP 97930334A EP 97930334 A EP97930334 A EP 97930334A EP 0857281 B1 EP0857281 B1 EP 0857281B1
Authority
EP
European Patent Office
Prior art keywords
sheathed
plug
glow plug
housing
plug housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97930334A
Other languages
German (de)
French (fr)
Other versions
EP0857281A1 (en
Inventor
Johannes Locher
Werner Teschner
Jörg-Chr. NISSEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0857281A1 publication Critical patent/EP0857281A1/en
Application granted granted Critical
Publication of EP0857281B1 publication Critical patent/EP0857281B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/26—Travelling-wave-shed looms
    • D03D47/262—Shedding, weft insertion or beat-up mechanisms
    • D03D47/267—Shedding mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F23Q2007/004—Manufacturing or assembling methods

Definitions

  • the invention relates to a glow plug for self-igniting internal combustion engines.
  • a glow plug for self-igniting internal combustion engines.
  • DE-A-1363 8164 known glow plug consist essentially of a candle case, one Connection device for the glow current, an am Tube attached to the candle housing attached to its from End facing away from the candle housing is closed and one in thermally conductive insulating powder embedded wire helical resistance element, which in the protruding from the candle housing, serving as a glow plug Part of the tube is arranged.
  • a spark plug is used Arrangement in the combustion chamber described in the candle housing Connection element and one fastened in the candle housing Isolator has.
  • the candle case is in two pieces Made out.
  • the glow plug according to the invention has the advantage that Use variable spacers different Overall lengths of the glow plug can be realized without that different length candle housings are made or connecting bolts of different lengths must be available.
  • the necessary product range of the individual parts for the Assembling a glow plug will be necessary significantly reduced what is ultimately due to the possible Manufacture in larger series of one
  • the glow plugs become cheaper.
  • the housing and also the connecting bolt can be in two parts, which are independent of the final length are always made the same, be produced and then only by the variable Intermediate piece can be adapted to the desired overall length.
  • FIG. 1 shows the basic structure of a Glow plug
  • Figure 2 with a glow plug housing
  • Intermediate piece for realizing variable lengths
  • Figure 3 a possibility of connecting the intermediate piece with the Housing according to Figure 2 and Figure 4 with a glow plug variable connection.
  • the glow plug shown in Figure 1 consists of a Candle housing 11 with a thread 12 and a hexagon 13.
  • the housing 11 is traversed by an axial bore, a at the combustion chamber end of the housing 11 Glow plug 14 is attached at one end.
  • the other End 15 of the glow plug 14 projecting into the combustion chamber locked.
  • the glow plug 14 consists of a temperature resistant material. Inside the glow plug there is insulating ceramic powder 16, and one Wire coil arrangement, which serves as a heating element, the Wire coil arrangement 17 from a heating coil with constant Resistance and a control coil with temperature-dependent There is resistance.
  • the connecting element 18 is in the candle housing 11 attached and forms on the far side of the combustion chamber Housing 11 a threaded bolt 19 on which the The glow current is connected.
  • An insulating washer 20 prevents electrical contact between the housing 11 and the connecting element 18th
  • Figure 2 shows a candle housing in section Representation, for simplicity only one side of the axis of symmetry is drawn starting from. Parts right away are here with the same reference numerals as in FIG. 1 Mistake.
  • a first part 21 which holds the glow plug 14 sealingly.
  • the second rear Part 22 carries the walking winch 12 for screwing in the Glow plug in the cylinder and the hexagon 13.
  • Both Parts 21 and 22 are interconnected by an intermediate piece 23 connected.
  • This intermediate piece 23 is the first and the second part, for example by welding, soldering,shrinking or pressing connected.
  • the intermediate piece 23 can can be used in different lengths.
  • the Length of the intermediate piece 23 is in each case Depends on the required length of the glow plug certainly. This has the advantage that the first and second Section 21 and 22 of the housing 11 in each case the same Geometry and be made with the same dimensions can.
  • Figure 3 shows another way how the connection between the individual parts 21 or 22 of the housing 11 and the intermediate piece 23 can be done. So it is beneficial the connecting surfaces each with a paragraph 24 to provided, as a much better fixation of the individual parts to be connected.
  • Figure 4 also shows a possibility, the inner Arrangement of the glow plug, consisting of glow plug 14, Connection element 18 and threaded bolt 19 to various Adapt overall lengths. So are the glow plug 14 and the one on it attached connecting bolts 18 in their length pre-assembled. Then depending on the length of the candle housing the corresponding variable threaded bolt with the Contacting to the connecting element 18 used.
  • the Connection 25 from connecting bolts to threaded bolts can by means of shrinking, soldering or friction welding. By the use of a standard glow pencil with connection element manufacturing becomes cheaper.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Resistance Heating (AREA)
  • Looms (AREA)

Abstract

The invention relates to a sheathed element glow plug for arrangement in the combustion chamber of an air-compression internal combustion engine with a plug shell, a connection member for the glow current and with a tube fastened to said plug shell and closed at the end thereof facing away from the plug shell. A wire filament arrangement embedded in insulating material is positioned in the tube part used as the glow element and projecting from the plug shell. The plug shell (11) comprises two sections and, depending on the desired overall length of the sheathed element glow plug, an intermediate member (23) of selectable length is provided which connects a first part (21) and a second part (22) of the plug shell (11) with each other.

Description

Stand der TechnikState of the art

Die Erfindung betrifft eine Glühstiftkerze für selbstzündende Brennkraftmaschinen. Die beispielsweise aus der Druckschrift DE-A-1363 8164 bekannte Glühstiftkerze bestehen im wesentlichen aus einem Kerzengehäuse, einer Anschlußvorrichtung für den Glühstrom, einem am Kerzengehäuse befestigtem Rohr, das an seinem vom Kerzengehäuse abgewandten Ende verschlossen ist und einem in wärmeleitenden Isolierpulver eingebetteten drahtwendelförmiges Widerstandselement, welches in dem aus dem Kerzengehäuse herausragenden, als Glühstift dienenden Teiles des Rohres angeordnet ist. Die Kerzengehäuse der verschiedenen handelsüblichen Glühstiftkerzen unterscheiden sich je nach Konstruktions- und Bauform des Motors, in welchen die Glühstiftkerze eingebaut werden soll, in ihrer Länge, die die Baulänge der Glühstiftkerzen bestimmt. Damit sind für die Fertigung eine große Vielfalt unterschiedlicher langer Kerzengehäuse und Anschlußvorrichtungen für die Kontaktierung des Heizelementes erforderlich.The invention relates to a glow plug for self-igniting internal combustion engines. For example, from DE-A-1363 8164 known glow plug consist essentially of a candle case, one Connection device for the glow current, an am Tube attached to the candle housing attached to its from End facing away from the candle housing is closed and one in thermally conductive insulating powder embedded wire helical resistance element, which in the protruding from the candle housing, serving as a glow plug Part of the tube is arranged. The candle case of the differentiate between standard glow plugs depending on the design and construction of the engine, in which the glow plug is to be installed in your Length that determines the overall length of the glow plugs. In order to are a wide variety of different for manufacturing long candle housing and connecting devices for the Contacting of the heating element required.

In der Druckschrift GB-A-2016596 wird eine Zündkerze zur Anordnung im Brennraum beschrieben, die im Kerzengehäuse ein Anschlußelement und einen in dem Kerzengehäuse befestigten Isolator aufweist. Das Kerzengehäuse ist in zweistückiger Ausfertigung hergestellt. In GB-A-2016596 a spark plug is used Arrangement in the combustion chamber described in the candle housing Connection element and one fastened in the candle housing Isolator has. The candle case is in two pieces Made out.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Glühstiftkerze hat den Vorteil, daß durch die Verwendung variabler Zwischenstücke unterschiedliche Baulängen der Glühstiftkerze realisiert werden können, ohne daß verschieden lange Kerzengehäuse gefertigt werden oder verschieden lange Anschlußbolzen verfügbar sein müssen. Die notwendige Produktpalette der Einzelteile, die für den Zusammenbau einer Glühstiftkerze notwendig sind, wird dabei deutlich verringert, was letztendlich durch die mögliche Herstellung in größeren Serienstückzahlen zu einer Verbilligung der Glühstiftkerze führt. Das Gehäuse und auch der Anschlußbolzen kann dabei in zwei Teilen, die unabhängig von der Endbaulänge immer gleich gefertigt werden, hergestellt werden und dann lediglich durch das variable Zwischenstück an die gewünschte Baulänge angepaßt werden.The glow plug according to the invention has the advantage that Use variable spacers different Overall lengths of the glow plug can be realized without that different length candle housings are made or connecting bolts of different lengths must be available. The necessary product range of the individual parts for the Assembling a glow plug will be necessary significantly reduced what is ultimately due to the possible Manufacture in larger series of one The glow plugs become cheaper. The housing and also the connecting bolt can be in two parts, which are independent of the final length are always made the same, be produced and then only by the variable Intermediate piece can be adapted to the desired overall length.

Durch die in den Unteransprüchen angegebenen Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Glühstiftkerze möglich. So kann die Verbindung zwischen den einzelnen Bauelementen durch Schweißen, Löten, Schrumpfen oder Pressen erfolgen. Letztendlich ist es vorteilhaft, die Stirnflächen der Teilstücke des Kerzengehäuses und des variablen Zwischenstückes mit einem Absatz am Durchmesser zu versehen, da so seine gute Fixierung vor dem Verbinden erreicht wird.By the measures specified in the subclaims advantageous developments and improvements in Main claim specified glow plug possible. So can the connection between the individual components Welding, soldering, shrinking or pressing. Ultimately, it is advantageous to have the end faces of the Parts of the candle housing and the variable To provide the intermediate piece with a shoulder on the diameter, because it fixes it well before connecting.

Zeichnungdrawing

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigen Figur 1 den Prinzipaufbau einer Glühstiftkerze, Figur 2 ein Glühstiftkerzengehäuse mit Zwischenstück zur Realisierung variabler Baulängen, Figur 3 eine Verbindungsmöglichkeit des Zwischenstückes mit dem Gehäuse gemäß Figur 2 und Figur 4 ein Glühstift mit variabler Anschlußkontaktierung. Embodiments of the invention are in the drawing shown and in the following description explained. 1 shows the basic structure of a Glow plug, Figure 2 with a glow plug housing Intermediate piece for realizing variable lengths, Figure 3 a possibility of connecting the intermediate piece with the Housing according to Figure 2 and Figure 4 with a glow plug variable connection.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Die in Figur 1 dargestellte Glühstiftkerze besteht aus einem Kerzengehäuse 11 mit einem Gewinde 12 und einem Sechskant 13. Das Gehäuse 11 ist von einer axialen Bohrung durchzogen, wobei am brennraumseitigen Ende des Gehäuses 11 ein Glühstift 14 mit seinem einen Ende befestigt ist. Das andere in den Brennraum ragende Ende 15 des Glühstiftes 14 ist verschlossen. Der Glühstift 14 besteht aus einem temperaturbeständigen Material. Im Inneren des Glühstiftes befindet sich isolierendes keramisches Pulver 16, und eine Drahtwendelanordnung, die als Heizelement dient, wobei die Drahtwendelanordnung 17 aus einer Heizwendel mit konstantem Widerstand und einer Regelwendel mit temperaturabhängigem Widerstand besteht. Während das freie Ende der Drahtwendelanordnung 17 an einem in den Glühstift 14 ragenden Anschlußelement 18 befestigt ist, ist das brennraumseitige Ende der Drahtwendelanordnung 17 mit dem verschlossenen Ende 15 des Glühstiftes 14 elektrisch verbunden. Das Anschlußelement 18 ist im Kerzengehäuse 11 befestigt und bildet auf der brennraumfernen Seite des Gehäuses 11 eine Gewindebolzen 19 aus, an welchem der Anschluß des Glühstromes erfolgt. Eine Isolierscheibe 20 verhindert einen elektrischen Kontakt zwischen dem Gehäuse 11 und dem Anschlußelement 18.The glow plug shown in Figure 1 consists of a Candle housing 11 with a thread 12 and a hexagon 13. The housing 11 is traversed by an axial bore, a at the combustion chamber end of the housing 11 Glow plug 14 is attached at one end. The other End 15 of the glow plug 14 projecting into the combustion chamber locked. The glow plug 14 consists of a temperature resistant material. Inside the glow plug there is insulating ceramic powder 16, and one Wire coil arrangement, which serves as a heating element, the Wire coil arrangement 17 from a heating coil with constant Resistance and a control coil with temperature-dependent There is resistance. While the free end of the Wire helix arrangement 17 on one in the glow plug 14 projecting connector 18 is attached, that is combustion chamber end of the wire helix assembly 17 with the closed end 15 of the glow plug 14 electrically connected. The connecting element 18 is in the candle housing 11 attached and forms on the far side of the combustion chamber Housing 11 a threaded bolt 19 on which the The glow current is connected. An insulating washer 20 prevents electrical contact between the housing 11 and the connecting element 18th

Nach diesem schematischen Aufbau sind im wesentlichen alle handelsüblichen Glühstiftkerzen hergestellt. Je nach konstruktiven Erfordernissen variieren sie jedoch in ihrer Gehäuselänge. Dies hat zur Folge, daß die verschiedensten Gehäuse für die Montage zur Verfügung gestellt werden müssen, was eine sehr große Produktpalette bedingt. According to this schematic structure, essentially all are commercially available glow plugs. Depending on constructive requirements, however, they vary in their Case length. As a result, the most varied Housing for assembly are provided must, which requires a very large range of products.

Figur 2 zeigt ein Kerzengehäuse in geschnittener Darstellung, wobei der Einfachheit halber nur eine Seite von der Symmetrieachse ausgehend gezeichnet ist. Gleich Teile sind hier mit den gleichen Bezugszeichen wie in Figur 1 versehen. Bei der erfindungsgemäßen Anordnung ist das Kerzengehäuse 11 aus zwei Teilen, einem ersten Teil 21, welcher den Glühstift 14 abdichtend hält. Das zweite hintere Teil 22 trägt das Gehwinde 12 zum Einschrauben der Glühstiftkerze in den Zylinder und den Sechskant 13. Beide Teile 21 und 22 sind durch ein Zwischenstück 23 miteinander verbunden. Dieses Zwischenstück 23 wird dem ersten und dem zweiten Teil, beispielsweise durch Schweißen, Löten, Schrumpfen oder Pressen verbunden. Das Zwischenstück 23 kann in den unterschiedlichsten Längen verwendet werden. Die Länge des Zwischenstückes 23 wird dabei jeweils in Abhängigkeit von der notwendigen Baulänge der Glühstiftkerze bestimmt. Das hat den Vorteil, daß das erste und zweite Teilstück 21 und 22 des Gehäuses 11 in jeweils gleicher Geometrie und mit den gleichen Abmaßen hergestellt werden können.Figure 2 shows a candle housing in section Representation, for simplicity only one side of the axis of symmetry is drawn starting from. Parts right away are here with the same reference numerals as in FIG. 1 Mistake. In the arrangement according to the invention that is Candle housing 11 from two parts, a first part 21, which holds the glow plug 14 sealingly. The second rear Part 22 carries the walking winch 12 for screwing in the Glow plug in the cylinder and the hexagon 13. Both Parts 21 and 22 are interconnected by an intermediate piece 23 connected. This intermediate piece 23 is the first and the second part, for example by welding, soldering, Shrinking or pressing connected. The intermediate piece 23 can can be used in different lengths. The Length of the intermediate piece 23 is in each case Depends on the required length of the glow plug certainly. This has the advantage that the first and second Section 21 and 22 of the housing 11 in each case the same Geometry and be made with the same dimensions can.

Figur 3 zeigt eine weitere Möglichkeit, wie die Verbindung zwischen den einzelnen Teilen 21 oder 22 des Gehäuses 11 und dem Zwischenstück 23 erfolgen kann. So ist es vorteilhaft, die Verbindungsflächen jeweils mit einem Absatz 24 zu versehen, da dadurch eine wesentlich bessere Fixierung der einzelnen zu verbindenden Teile erfolgt.Figure 3 shows another way how the connection between the individual parts 21 or 22 of the housing 11 and the intermediate piece 23 can be done. So it is beneficial the connecting surfaces each with a paragraph 24 to provided, as a much better fixation of the individual parts to be connected.

Figur 4 zeigt desweiteren eine Möglichkeit, die innere Anordnung der Glühstiftkerze, bestehend aus Glühstift 14, Anschlußelement 18 und Gewindebolzen 19 an verschiedene Baulängen anzupassen. So sind der Glühstift 14 und der daran befestigte Anschlußbolzen 18 in ihrer Länge fest vormontiert. Je nach Baulänge des Kerzengehäuses wird dann der entsprechende variable Gewindebolzen mit der Kontaktierung zum Anschlußelement 18 verwendet. Die Verbindung 25 von Anschlußbolzen zu Gewindebolzen kann mittels Schrumpfen, Löten oder Reibschweißen erfolgen. Durch die Verwendung eines Einheitsglühstiftes mit Anschlußelement wird die Fertigung kostengünstiger.Figure 4 also shows a possibility, the inner Arrangement of the glow plug, consisting of glow plug 14, Connection element 18 and threaded bolt 19 to various Adapt overall lengths. So are the glow plug 14 and the one on it attached connecting bolts 18 in their length pre-assembled. Then depending on the length of the candle housing the corresponding variable threaded bolt with the Contacting to the connecting element 18 used. The Connection 25 from connecting bolts to threaded bolts can by means of shrinking, soldering or friction welding. By the use of a standard glow pencil with connection element manufacturing becomes cheaper.

Claims (4)

  1. Sheathed-element glow plug for arrangement in the combustion chamber of a compression-ignition internal combustion engine, with a plug housing (11), with a connection element (18) for the heating current and with a tube (14) that is attached to the plug housing (11) and is closed at its end (15) remote from the plug housing (11), a wire coil arrangement (17) in an insulating material (16) being arranged in that part of the tube (14) that projects from the plug housing (11) and acts as a sheathed element, the plug housing (11) being manufactured in two pieces, characterized in that an intermediate piece (23) of selectable length connects the first part (21) and the second part (22) of the plug housing (11), depending on the desired overall length of the sheathed-element glow plug.
  2. Sheathed-element glow plug according to Claim 1, characterized in that the intermediate piece (23) is connected to the component parts (21, 22) of the housing (11) by means of welding, soldering, shrink fitting or press fitting.
  3. Sheathed-element glow plug according to one of the preceding claims, characterized in that the end faces of the intermediate piece (23) and the component parts (21, 22) of the plug housing (11) that are associated with one another are provided with an offset (24).
  4. Sheathed-element glow plug according to one of the preceding claims, characterized in that, given different overall lengths of the sheathed-element glow plugs, a threaded bolt (19) with a correspondingly selectable length can be used to make contact with the connection element (18).
EP97930334A 1996-07-26 1997-06-18 Sheathed element glow plug Expired - Lifetime EP0857281B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19630208A DE19630208A1 (en) 1996-07-26 1996-07-26 Glow plug
DE19630208 1996-07-26
PCT/DE1997/001241 WO1998004870A1 (en) 1969-12-17 1997-06-18 Sheathed element glow plug

Publications (2)

Publication Number Publication Date
EP0857281A1 EP0857281A1 (en) 1998-08-12
EP0857281B1 true EP0857281B1 (en) 2001-10-24

Family

ID=7800932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97930334A Expired - Lifetime EP0857281B1 (en) 1996-07-26 1997-06-18 Sheathed element glow plug

Country Status (5)

Country Link
US (1) US6046434A (en)
EP (1) EP0857281B1 (en)
JP (1) JP3970330B2 (en)
DE (3) DE1966664A1 (en)
WO (1) WO1998004870A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1113866B (en) * 1979-04-11 1986-01-27 Moplefan Spa HIGH SPEED CIRCULAR FRAME FOR THE PRODUCTION OF TUBULAR FABRICS FROM WIRES, STRIPS, FLATS AND SIMILAR SYNTHETIC AND NATURAL SUBSTANCES
SI0909923T1 (en) * 1997-10-10 2000-12-31 Federal-Mogul Ignition S.P.A. Glow plug with bushing extension
DE19757725C5 (en) * 1997-12-23 2004-02-26 Beru Ag Diesel jump start
PT943865E (en) * 1998-03-16 2001-05-31 Federal Mogul Ignition Spa INCANDESCENCE CANDLE WITH A CAPSULE AND A FIXING SLEEVE IN PARTICULAR FOR DIESEL ENGINES WITH FEW FUNDS
WO2001016528A1 (en) * 1999-08-27 2001-03-08 Robert Bosch Gmbh Ceramic sheathed element glow plug
EP1262716B1 (en) * 2001-05-28 2008-08-06 Ngk Spark Plug Co., Ltd Heater and glow plug
EP1637806B1 (en) * 2004-09-15 2012-02-01 Beru AG Glow plug with pressure sensor for a diesel engine
JP2007093102A (en) * 2005-09-28 2007-04-12 Ngk Spark Plug Co Ltd Glow plug and its manufacturing method
JP2009243710A (en) * 2008-03-28 2009-10-22 Ngk Spark Plug Co Ltd Glow plug
JP5575291B2 (en) * 2013-03-21 2014-08-20 日本特殊陶業株式会社 Glow plug
KR20140142934A (en) * 2013-06-05 2014-12-15 우진공업주식회사 Metal shell of glow flug for diesel engine and method for fabricating the same
FR3022012B1 (en) * 2014-06-06 2016-08-12 Bosch Gmbh Robert HEAT ENGINE PREHEATING CANDLE

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB408917A (en) * 1933-12-21 1934-04-19 Albert Ruprecht Ignition plug for diesel engines
GB472814A (en) * 1936-03-30 1937-09-30 Stone J & Co Ltd Improvements in ignition plugs for internal combustion engines
US2456080A (en) * 1944-11-20 1948-12-14 Pe Wu Ignition plug
US2898571A (en) * 1954-12-20 1959-08-04 Vickers Electrical Co Ltd Methods of manufacturing tubular sheathed heating elements
GB2016596A (en) * 1978-03-05 1979-09-26 Gen Motors France Spark plugs
US4477717A (en) * 1983-04-08 1984-10-16 Wellman Thermal Systems Corporation Fast start glow plug
DE3638164A1 (en) * 1986-03-14 1987-09-17 Bosch Gmbh Robert GLOW PLUG CANDLE FOR DIESEL ENGINES
JPH03175210A (en) * 1989-09-11 1991-07-30 Jidosha Kiki Co Ltd Glow plug of ceramic heater type
JP3028124B2 (en) * 1991-02-15 2000-04-04 日本特殊陶業株式会社 Glow plug hardware
DE19538205C1 (en) * 1995-10-13 1997-02-13 Hotset Heizpatronen Zubehoer Tubular electrical heating element

Also Published As

Publication number Publication date
JP3970330B2 (en) 2007-09-05
DE59705072D1 (en) 2001-11-29
DE1966664A1 (en) 1973-09-20
WO1998004870A1 (en) 1998-02-05
DE19630208A1 (en) 1998-01-29
JPH11514737A (en) 1999-12-14
EP0857281A1 (en) 1998-08-12
US6046434A (en) 2000-04-04

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