Classifications

• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
  • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
  • F04D13/00—Pumping installations or systems
  • F04D13/16—Pumping installations or systems with storage reservoirs
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
  • F04D29/00—Details, component parts, or accessories
  • F04D29/58—Cooling; Heating; Diminishing heat transfer
  • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
  • F04D29/5866—Cooling at last part of the working fluid in a heat exchanger

Definitions

• the invention relates to a device according to the preamble of claim 1.
• a known device of the aforementioned type is used to cool the pressure medium conveyed by the pump, the inlet connected to the fan wheel and the outlet also connected to it being guided via the heat exchanger (DE-PS 27 50 967).
• the object of the invention is to further develop and improve the known device. This object is achieved according to the invention by the features in the characterizing part of claim 1.
• the device according to the invention additionally serves to receive pressure medium in a pressure medium container adapted to the connecting body, the whole arrangement being such that the pressure medium container is incorporated into the device in a favorable manner, the available space being used. Because of the inclusion of the pressure medium container in the device, it can be used far more extensively than the known device.
• the device according to the invention not only the pressure medium flowing through the heat exchanger is cooled, but also the pressure medium located in the pressure medium container, since parts of the wall of the pressure medium container simultaneously form the wall of the fan and thus from the air sucked in by it
• OMPI of the company are constantly under pressure. Additional units can also be attached to the connecting body without significant additional effort.
• a favorable attachment of the drive motor to the connection body so that air can be sucked in by the fan between the drive motor and the connection body enables the features of claim 2.
• a space-saving arrangement of the heat exchanger and a filter in the connecting body is achieved by the features of claim 3.
• the features of claim 4 are directed to a short line connection between the pressure medium pump on one side and the pressure medium container and a hydraulic element which can be attached to the connecting body.
• FIG. 2 is a view in the direction of arrow A in Fig. 1,
• FIG. 3 shows a section along line III-III in FIG.
• a drive motor 4 and, on the right side, a pump 5, each with fastening flanges 6 and 7, are attached to a substantially cuboid, hollow connecting body 3 provided with feet 1 and 2.
• the mounting flange 6 of the drive motor 4 is, as shown in dashed lines in FIG. 2, essentially rectangular and is fastened to its two lateral vertical edges by means of screws 8.
• the pump 5 is thus elastically connected to the connecting body 3.
• An elastic connection of the drive motor to the connecting body 3 is also possible.
• a fan wheel 15 is fastened by means of a holding body 14, which, viewed in the axial direction of the drive shaft 10, extends approximately from the center of the connecting body 13 to the left.
• a guide member 16 which is designed in the manner of a trumpet horn and made of sheet metal, is attached to the fan wheel 15 and is attached to a guide wall 17 in the connecting body 3.
• the guide wall 17 is designed such that air can be brought to the guide member 16 and the fan wheel 15 between the fastening flange 6 and the guide wall 7.
• the fan wheel 15 is surrounded by a spiral fan wall part 18 (FIGS. 1 and 2).
• a fan wall part 19 arranged perpendicular to the axis of the drive shaft 10, which extends from the outside approximately to the fan wheel 15. Seen in the drawing, to the right of the fan wheel is a cylindrical fan wall part 20. Above the fan wheel 15, a heat exchanger 21 is arranged in the connecting body 3.
• the fan wall 18 to 20 and an outer wall 22 delimit a pressure medium container 23 which, with the exception of the area of the heat exchanger 21, surrounds the fan wheel 15 and the clutch 11.
• connection 24 for pressure medium flowing back is arranged at the top right.
• the connection 24 is connected via a pipe 25 to channels 26 of the heat exchanger 21, between which cooling fins 27 are arranged (FIG. 3).
• the heat exchanger 21 is connected via a channel 28 to a filter housing 29 into which a filter cartridge 30 is inserted, which is accessible from the outside via a screw cap 31 (FIG. 2).
• the filter cartridge 30 is arranged in the upper part of the pressure medium container 23.
• the tube 25, the heat exchanger 21 and the filter housing 29 are surrounded by a housing part of the connecting body 3, which has an indentation 32 between the channel 25, the heat exchanger 21 and the filter housing 29 for the attachment of a connecting part 33 for receiving one into the pressure medium container 23 immersing, not shown floating and temperature switch and a connecting part 34 for receiving a filling and ventilation filter connected to the pressure medium container 23.
• a sight glass 35 is attached on the upper right side, with which the pressure medium level in the pressure medium container 23 can be checked.
• two connections 36 and 37 are attached to the pressure medium container, of which at least one, for. B. the connection 37, can be connected to a storage container.
• FIG. 2 On the lower right-hand side in FIG. 2 there is a suction connection 38 on the pressure medium container 23, which is connected to the suction side of the pump 5 via an elastic line 39.
• the pressure side of the pump 5 is connected via an elastic line 40 to a hydraulic element 41, in particular a hydraulic control unit, which has a connection 42 leading to a consumer (not shown).
• the hydraulic member 41 is attached to the connecting body 3 above the pump 5.
• the pressure medium container 23 surrounds the fan wheel 15 at a distance and if the wall shown in FIG. 1 on the right of the fan wheel 15 is open in accordance with the diameter of the fan wheel 15, the fan wheel 15 and the pump 5 can be released after loosening if the coupling 11 is designed appropriately of the fastening flange 7 can be removed from the drive motor 4 in a simple manner.
• a simple release of the pump 5 from the drive motor 4 is advantageous because the service life of the pump 5 is significantly shorter than the service life of the drive motor 4 and the pump therefore has to be replaced frequently.
• a sealing wall held by the fastening flange 7 and penetrated by this hub can be provided. If the fan wheel 15 does not need to be removed from the connecting body, the fan wall part 20 as the inner wall of the pressure vessel 23 can have a smaller diameter than the fan wheel 15.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Power Engineering (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Details Of Reciprocating Pumps (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=6195667

Family Applications (1)

Country Status (4)

Cited By (4)

Families Citing this family (8)

Citations (3)

Family Cites Families (5)

• 1983
  • 1983-04-07 DE DE19833312490 patent/DE3312490A1/de active Granted
• 1984
  • 1984-04-06 US US06/686,260 patent/US4695232A/en not_active Expired - Lifetime
  • 1984-04-06 WO PCT/DE1984/000080 patent/WO1984003915A1/de not_active Ceased
  • 1984-04-06 IT IT67339/84A patent/IT1179610B/it active

Patent Citations (3)

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