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Pump

A rotor and transverse hole technology, applied in the field of pumps, can solve the problems of wear and failure of vacuum pumps

Active Publication Date: 2017-08-15
HANON SYST EFP DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insufficient lubricant supply can therefore lead to considerable wear and failure of the vacuum pump

Method used

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Examples

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Embodiment Construction

[0018] figure 1 A vacuum pump 1 with a rotor 5 is shown. An oil inlet 9 is provided in the housing 3 of the pump 1 , which is connected to the supply connector 10 and leads to the rotor bearing 6 . The rotor 5 has at least one radial slot 8 for improving the distribution of lubricating oil introduced via the oil inlet holes 9 . In order to achieve an optimal supply of lubricating oil, the oil inlet hole 9 ideally opens into the rotor bearing 6 in the region of the radial groove 8 . Furthermore, the rotor 5 has a transverse hole 13 a configured to extend up to the middle portion of the rotor 5 . Bores 15 are provided in the axial direction of the rotor 5 into which fastening means 17 can be introduced for connecting a coupling 27 to the rotor 5 . The fastening device 17 likewise has a central bore 18 in the axial direction. Due to the rotational movement of the rotor 5, the transverse hole 13a sweeps the oil lift groove 7 once per one revolution. In this way, a part of th...

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Abstract

A pump (1), in particular a vacuum pump (1) for brake boosting on motor vehicles, the pump (1) having a housing (3), a rotor (3) mounted in the housing (3) so that it can rotate 5) Oil lift grooves (7) provided in the housing (3) in the region of the rotor mounts (6) and transverse holes (13a, 13b) provided in the rotor (5) transverse to the longitudinal axis of the rotor , the hole can be connected to the oil lift groove (7), wherein the rotor mount area is connected to the oil supply hole (9). The transverse holes (13a, 13b) are connected to the axial holes (15) in the rotor (5), which lead to the coupling section (25) in the rotor (5), in the coupling section (25) A coupling (27) is provided therein, which can be engaged in the coupling section (25) by means of fasteners (17) having a central hole extending parallel to the longitudinal axis of the rotor.

Description

technical field [0001] The invention relates to a pump, in particular a vacuum pump for brake boosting in a motor vehicle, the pump has a housing, a rotor bearing is arranged in the housing, a rotor is rotatably mounted in the rotor bearing, the rotor has a Oil lift grooves in the area of ​​the bearings for supplying lubricating oil to the vacuum pump. Background technique [0002] Pumps of this type are known. [0003] For example, a vacuum pump of the type described above may be flanged to the cylinder head of an internal combustion engine. These vacuum pumps are then driven by the camshaft of the internal combustion engine. The connection between the camshaft and the vacuum pump takes place via a coupling, in particular a plug-in coupling. Pumps of this type have an oil inlet arrangement in which the lubricating oil supply of the internal combustion engine is brought into connection with the internal lubricating oil supply of the vacuum pump via an oil inlet connection...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C25/02F04C29/00F04C29/02F04C18/344
CPCF04C18/344F04C25/02F04C29/005F04C29/023F04C29/028F01M9/108F04C18/322F04C29/0085F04C29/02
Inventor 约尔格·瓦伦费尔斯
Owner HANON SYST EFP DEUT GMBH