EP2177723A1 - Guidage de poussoir - Google Patents

Guidage de poussoir Download PDF

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Publication number
EP2177723A1
EP2177723A1 EP09012853A EP09012853A EP2177723A1 EP 2177723 A1 EP2177723 A1 EP 2177723A1 EP 09012853 A EP09012853 A EP 09012853A EP 09012853 A EP09012853 A EP 09012853A EP 2177723 A1 EP2177723 A1 EP 2177723A1
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
guide element
crankcase
camshaft
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.)
Withdrawn
Application number
EP09012853A
Other languages
German (de)
English (en)
Inventor
Gerhard Kathrein
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.)
Innio Jenbacher GmbH and Co OG
Original Assignee
GE Jenbacher GmbH and Co OHG
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 GE Jenbacher GmbH and Co OHG filed Critical GE Jenbacher GmbH and Co OHG
Publication of EP2177723A1 publication Critical patent/EP2177723A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/102—Lubrication of valve gear or auxiliaries of camshaft bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/103—Lubrication of valve gear or auxiliaries of valve stem and guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/104—Lubrication of valve gear or auxiliaries of tappets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries
    • F01M9/105—Lubrication of valve gear or auxiliaries using distribution conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/02—Arrangements of lubricant conduits
    • F01M2011/026—Arrangements of lubricant conduits for lubricating crankshaft bearings

Definitions

  • the invention relates to a plunger guide element, which can be arranged in the crankcase of an internal combustion engine, is provided with at least one bore for a plunger, Furthermore, the invention relates to an internal combustion engine comprising a crankcase, a camshaft and a plunger guide element.
  • High-performance internal combustion engines which are used for example for the operation of a generator, regularly have a high number of cylinders and large displacement. Accordingly, the camshafts and crankcases used are of an extended dimension. Both in the production, cleaning and in the assembly and in the maintenance of such internal combustion engines, one increasingly reaches limits with regard to the materials used and the tools used. Therefore, it has gone over to form certain components such as ram guide elements for ram separately.
  • Object of the present invention is therefore to provide a ram guide element or an internal combustion engine of each type mentioned in which the production of the ram guide element, the cleaning and installation of the ram guide element are facilitated in the internal combustion engine and where the maintenance is simplified.
  • a ram guide element which can be arranged in the crankcase of an internal combustion engine, with at least one bore for at least one ram, achieved by an integrated oil passage.
  • the oil passage is integrated into the ram guide element and not separately formed, so that the Manufacturing is facilitated because no separate supply channel must be integrated into the internal combustion engine.
  • the plunger guide element is monolithic, that is, that it is essentially made of a single workpiece.
  • the oil channel has a main channel which extends through the plunger guide element and at least one branching from the main channel distribution line through which, for example, the camshaft bearing, the main bearing, the plunger, etc. are supplied with oil.
  • the bearing for the camshaft is supplied with oil.
  • the plunger can be supplied with oil via distributor lines.
  • the ram guide element takes over the oil supply of the camshaft bearing and ram.
  • the oil passage (or main passage) and the ram bore overlap, eliminating the need for a separate connection bore.
  • the tappet guide element can in one embodiment have a rotation and thus take over the additional function of preventing the rotation of the plunger, which can occur due to the rotation of the camshaft and the force exerted by the cam of the camshaft on the valves shear forces as far as possible. This is favorable in so-called roller tappets. In the case of so-called bucket tappets, however, rotation is generally desirable, so that in most cases no rotation is provided. .
  • an internal combustion engine comprising a crankcase, a camshaft and a plunger element of the aforementioned type.
  • the crankcase in the region of the camshaft on a recess into which the camshaft is used.
  • the ram guide element can be placed and connected to the crankcase.
  • appropriate contact surfaces are provided in a favorable manner in order to connect the crankcase with the ram guide element.
  • the ram guide element can be attached to the crankcase.
  • the plunger guide element together with the crankcase forms a bearing for the camshaft.
  • n number of cylinders.
  • a sealing element is arranged between the at least two ram guide elements.
  • Such sealing elements make it possible to compensate for smaller variations in the length of the ram guide element due to temperature variations or smaller manufacturing variations.
  • the at least two plunger guide elements form a common oil passage, so that the Stässel entries institute can be flowed through by oil.
  • the at least one ram guide element and that the crankcase are in contact at least in regions at corresponding contact surfaces, wherein the at least one ram element and the crankcase are connected to one another via releasably attachable fastening elements.
  • the fasteners may be formed simultaneously as positioning and take over the function of positioning and centering.
  • the Fasteners selected from the group of bolts, screws, pins, keys, springs or combinations thereof.
  • dowel pins are used.
  • the internal combustion engine is a reciprocating piston engine with V-arrangement, since the plunger guide element can be arranged in a simple manner in the middle of the crankcase and the bores and any oil distribution lines for the plunger are particularly simple gestaltbar.
  • the internal combustion engine is a stationary internal combustion engine, preferably a gas Otto engine.
  • the internal combustion engine at least eight, preferably at least twelve, more preferably at least sixteen cylinders.
  • the invention relates to a stationary power plant comprising an internal combustion engine of the aforementioned type with tappet guide element and a generator, wherein the generator of the internal combustion engine is operable.
  • FIG. 1 is an axonometric illustration of an internal combustion engine with crankcase 2, camshaft 5 and ram guide element 1 shown.
  • crankcase 2 camshaft 5 and ram guide element 1
  • the embodiment corresponds to an internal combustion engine in reciprocating design.
  • the cylinder recesses 10 for a total of four cylinders can be seen.
  • the internal combustion engine is shown here only shortened with four cylinders, the remaining cylinders (preferably at least eight) are not shown for reasons of clarity.
  • the cylinders of the internal combustion engine are arranged in a V-arrangement, so that the camshaft 5 practically comes to rest in the middle of the internal combustion engine.
  • the camshaft 5 has individual cams 8 ', 8 “, 8"', which are arranged offset from one another in the direction of rotation of the camshaft.
  • the cams 8 ', 8 ", 8"' actuate the respective valve in combination with a return spring.
  • the valves are not shown for the sake of simplicity.
  • the crankcase 2 has a recess 9, so that the camshaft 5 can be inserted in the axial direction R in the crankcase 2.
  • a kind of gutter is provided, in which a bush (not shown) is inserted, which surrounds the introduced camshaft 5.
  • the plunger guide element 1 according to the invention is arranged in an exploded view above the crankcase 2 for reasons of clarity.
  • the tappet guide element 1 is inserted through an opening 11 in the crankcase 2 and placed on the camshaft 5.
  • a bushing (not shown) is used, which surrounds the camshaft bearing.
  • the tappet guide element 1 has a plurality of holes 3 (in the Fig. 1 two holes are visible). In the holes 3, the plunger of the valves can be used. By means of contact surfaces 13 on the crankcase and contact surfaces 12 on the tappet guide element 1, this can be placed accurately on the crankcase 2. Positioning elements 7 serve to position the plunger guide element 1 on the crankcase 2 and fix it. In the ram guide element 1, an oil passage 4 is integrated. From the oil channel 4, a distribution line 15 leads directly to the bearing of the camshaft 5, so that the bearing is supplied with oil.
  • Sealing elements 16 seal the oil passage 4 of the individual ram guide elements 1 from the environment, from escaping oil.
  • the entire ram guide element 1 is monolithic.
  • an anti-rotation 14 is provided, which is arranged in the illustration on the camshaft 5, which prevents the ram rotate during rotation of the camshaft 5.
  • Fig. 2 is a plan view of the arrangement according to Fig. 1 shown in the assembled state. It can be seen that two ram guide elements 1 are arranged successively in the crankcase 2, which form a common oil passage 4. Between the ram guide elements 1 is a (in Fig. 1 represented) sealing element 6 is provided, which is formed in the embodiment as an O-ring. By such a sealing element 6, a geometric match between the individual ram guide elements 1 can be avoided. In the Fig. 2 is the V-arrangement of the cylinder recognizable. It can also be seen that at least one bore 3 for the plunger of the intake valves and at least one bore 3 for the plunger of the exhaust valves are provided per plunger guide element 1.
  • a tappet guide element 1 is provided for two cylinders, two bores (one per cylinder) are therefore provided for the tappets of the inlet valves and two bores for the tappets of the outlet valves.
  • a ram guide element 1 for two V-shaped arranged cylinder and has for the respective intake valves and exhaust valves V-shaped arranged holes 3 for the plunger. The remaining parts are already closed Fig. 1 described and therefore for the Fig. 2 to 7 not discussed again in detail.
  • the Fig. 5 shows a further embodiment of the ram guide element 1, which is housed in a crankcase 2.
  • the ram guide element 1 differs only slightly from the embodiment of Fig. 1 to 4 , In this embodiment, the distribution lines 17 in the form of holes are clearly visible, which supply the plunger or valves with oil. Otherwise, the structure corresponds to the embodiment of the previous figures.
  • the Fig. 6 shows the section along the plane AA, here again the distribution lines 15 for the camshaft bearing 20 are better visible.
  • the oil flow is marked with arrows.
  • Fig. 7 is a cross section along B - B of Fig. 5 shown. This illustration shows the oil flow in the oil channel. From the main oil channel 4, the flow through the transverse bores 17 to the tappet bores 3 is shown. Further, the flow from the main oil gallery 4 is shown vertically down to the camshaft bearing and thence to the main bearings 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
EP09012853A 2008-10-17 2009-10-12 Guidage de poussoir Withdrawn EP2177723A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT16332008 2008-10-17

Publications (1)

Publication Number Publication Date
EP2177723A1 true EP2177723A1 (fr) 2010-04-21

Family

ID=41572352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09012853A Withdrawn EP2177723A1 (fr) 2008-10-17 2009-10-12 Guidage de poussoir

Country Status (1)

Country Link
EP (1) EP2177723A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800517B2 (en) 2010-12-01 2014-08-12 Caterpillar Inc. Cam shaft/cam gear assembly and thrust strategy for engine using same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR334864A (fr) * 1903-08-27 1904-01-05 Internat Automobile Mfg Compan Système de graissage mécanique à débits alternatifs fonctionnant pour chaque cylindre sous la commande de la distribution dans les moteurs d'automobiles
US1482478A (en) * 1923-11-08 1924-02-05 Walker M Milligah Luericating system for internal-combustion engines
DE1272623B (de) 1965-02-04 1968-07-11 Motoren Werke Mannheim Ag Nockenwellen- und Ventilstoessellagerung am Zylinderblock von mehrzylindrigen Brennkraftmaschinen
JPS59188007A (ja) * 1983-03-10 1984-10-25 Mazda Motor Corp エンジンのバルブタイミング制御装置
US5178107A (en) * 1991-11-21 1993-01-12 Morel Jr Edward J Valve lifter
DE19618401C1 (de) * 1996-05-08 1997-07-03 Porsche Ag Zylinderkopfanordnung einer Brennkraftmaschine
EP0967381A1 (fr) * 1998-06-25 1999-12-29 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Culasse pour moteur à combustion

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR334864A (fr) * 1903-08-27 1904-01-05 Internat Automobile Mfg Compan Système de graissage mécanique à débits alternatifs fonctionnant pour chaque cylindre sous la commande de la distribution dans les moteurs d'automobiles
US1482478A (en) * 1923-11-08 1924-02-05 Walker M Milligah Luericating system for internal-combustion engines
DE1272623B (de) 1965-02-04 1968-07-11 Motoren Werke Mannheim Ag Nockenwellen- und Ventilstoessellagerung am Zylinderblock von mehrzylindrigen Brennkraftmaschinen
JPS59188007A (ja) * 1983-03-10 1984-10-25 Mazda Motor Corp エンジンのバルブタイミング制御装置
US5178107A (en) * 1991-11-21 1993-01-12 Morel Jr Edward J Valve lifter
DE19618401C1 (de) * 1996-05-08 1997-07-03 Porsche Ag Zylinderkopfanordnung einer Brennkraftmaschine
EP0967381A1 (fr) * 1998-06-25 1999-12-29 Dr.Ing. h.c.F. Porsche Aktiengesellschaft Culasse pour moteur à combustion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8800517B2 (en) 2010-12-01 2014-08-12 Caterpillar Inc. Cam shaft/cam gear assembly and thrust strategy for engine using same

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