Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C2/00—Rotary-piston machines or pumps
  • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
  • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
• • 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
  • F01M1/00—Pressure lubrication
  • F01M1/02—Pressure lubrication using lubricating pumps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
  • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
  • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
  • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
  • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
  • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
  • F04C23/005—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle
• • 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
  • F01M1/00—Pressure lubrication
  • F01M1/02—Pressure lubrication using lubricating pumps
  • F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
  • F01M2001/0238—Rotary pumps

Definitions

• the invention relates to an oil pump and vacuum pump module for internal combustion engines
• Internal combustion engines such as gasoline and diesel engines, have an oil pump for scrap conveying.
• the oil pump is driven by an output shaft of the internal combustion engine, which is usually connected to the crankshaft.
• the oil pump is arranged within the crankshaft housing or flanged to this.
• Vacuum pumps are provided for operating vacuum units.
• the drive of the vacuum pump also takes place via an output shaft of the internal combustion engine, which is usually connected to the camshaft.
• Vacuum pumps are usually arranged in the region of the cylinder head and flanged to the engine housing in this area.
• the first ⁇ lpurnpe has a mounting flange for connection to a second oil pump.
• Another mounting flange must be provided on the Kurbeiwellengephaseuse for mounting the first oil pump. Mounting flanges are machined surfaces, thereby increasing manufacturing costs.
• the invention has for its object to simplify the use of oil pumps and vacuum pumps in internal combustion engines and in particular to reduce their assembly costs and manufacturing and assembly costs.
• a module which comprises both the oil pump and the vacuum pump.
• the module comprises a first and a second pump housing or two housing halves.
• the oil pump is arranged in each case one pump housing and the vacuum pump in the other.
• a first pump housing which is preferably the ⁇ ipumpengeophuse, has two opposing openings. From these openings protrudes the drive shaft, wherein one of the drive shafts with a drive element, such as a gear, and the other end is connected to a conveying element, in particular the air conveying element of the vacuum pump.
• the drive shaft is preferably formed integrally.
• one of the two pump housings in particular the first pump housing, has a mounting surface.
• This preferably extends radially to the axis of the drive shaft.
• the second pump housing which is in particular the vacuum pump housing, can be mounted on this mounting surface.
• the mounting surface is not used for mounting the second pump housing, but also for mounting the entire module, for example on the Kurbeiweltengeophuse. This has the advantage that a single Montagefiumblee is used for two Mondays. As a result, the manufacturing cost can be reduced because only one mounting surface must be edited.
• the module can be arranged on the motor housing. It is particularly preferable to arrange the entire module within the motor housing, in particular within the crankshaft housing. For this purpose, in the crankshaft housing a particular cylindrically shaped recess may be provided into which the second pump housing is inserted. In the plane of the opening or recess or recess a corresponding Montagefikiee is provided, against which the mounting surface of the module according to the invention.
• the module according to the invention can thus be extremely space-saving, in particular within the crankshaft housing, are arranged.
• the second pump housing is preferably open only in the direction of the mounting surface.
• the corresponding connections for the pump arranged in the second pump housing, in particular the vacuum pump are therefore formed by the first pump housing. This has the advantage that the second pump housing can be made extremely simple. It is particularly preferred to provide a pot-shaped housing, which is produced in particular from a sheet metal, as the second pump housing.
• the oil pump and the vacuum pump are combined to form a module, it is possible in a simple manner to supply the vacuum pump with lubricant.
• the two pumps are connected to each other in a preferred embodiment via a lubricant channel. This is promoted by the oil pump lubricant to the vacuum pump. In particular, due to the small distance between the two pumps lubrication of the vacuum pump is ensured in a simple manner.
• Fig. 2 is a schematic side view of the module
• Fig. 3 is a schematic longitudinal section of that shown in Fig. 2
• the oil pump and vacuum pump module has a first housing 10, which is the oil pump housing in the illustrated embodiment.
• a second cup-shaped housing 12 is formed as a vacuum pump housing.
• a common drive shaft 14 is rotatably connected to an oil delivery element 16 and an air conveyor element 18.
• the oil delivery element 16 cooperates with a second delivery element 20 of the oil pump, wherein the oil pump in the exemplary embodiment illustrated is a gerotor pump which conveys oil from an oil inlet 22 in the direction of an oil outlet 24.
• the oil pump housing 10 has two openings 26, 27 from which protrude the two ends of the drive shaft.
• the opening 26 is closed by a housing cover 28, wherein the drive shaft 14 is slidably mounted in a bearing 30 of the lid 38 and projects through the housing cover 28 therethrough.
• a drive element 34 is arranged in the form of a sprocket and rotatably connected to the drive shaft 14.
• the drive element 34 is connected to an engine output shaft, for example via another gear or a chain.
• the oil pump 11 is thus arranged completely within the housing 10 closed by the housing cover 28.
• the vacuum pump 13 which is in particular a rotary vane pump, is arranged substantially inside the cup-shaped housing 12, which is preferably a housing made of sheet metal.
• the vacuum pump housing 2 has no connections of the vacuum pump.
• the port 36 (FIG. 1) for the vacuum pump is disposed in the first housing 10, ie, in the oil pump housing.
• a delivery chamber 38 arranged in the vacuum pump housing 12 is connected to the outlet 36 via a channel 40.
• the first housing 10 has a Montagefikiee 42, which may be stepped if necessary.
• the second housing 12 is secured by screws 44.
• the entire module can be mounted on the remaining mounting surface on or in a crankcase.
• the assembly in a crankshaft housing wherein the second pump housing 12 is inserted into a recess provided in the crankshaft housing recess, so that the remaining mounting surface 42 abuts a corresponding provided within the Kurbelweliengephaseuses mounting surface.
• the module may then be mounted, for example, by means of screws inserted through apertures 46 ( Figure 1) by threading the threaded screws located on the mounting surface provided in the crankcase housing,
• Another essential aspect of the invention is that in the mounting surface 42, the terminals 24 and 36 are provided for the oil pump 11 and the vacuum pump 13. This has the advantage that at the same time the connections are fluidly connected when mounting the module.
• the mounting surface 42 is preferably aligned radially to the axis 48 of the drive shaft 14.
• the mounting surface 42 furthermore represents the parting plane between the two housing halves 10, 12 or the first housing 10 and the second housing 12.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
• Applications Or Details Of Rotary Compressors (AREA)
• Lubrication Of Internal Combustion Engines (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=37997622

Family Applications (1)

Country Status (5)

Families Citing this family (3)

Family Cites Families (4)

• 2007
  • 2007-02-13 WO PCT/EP2007/051362 patent/WO2007093581A1/fr active Application Filing
  • 2007-02-13 AT AT07704538T patent/ATE451553T1/de active
  • 2007-02-13 EP EP07704538A patent/EP1989448B1/fr active Active
  • 2007-02-13 ES ES07704538T patent/ES2336617T3/es active Active
  • 2007-02-13 DE DE502007002263T patent/DE502007002263D1/de active Active

Non-Patent Citations (1)

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