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Filter device

A filter device and filter technology, applied in the direction of filtration separation, membrane filter, cartridge filter, etc., can solve expensive problems

Inactive Publication Date: 2010-06-16
IBS菲尔特兰塑料金属产品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this combination of two filters is more expensive

Method used

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Embodiment Construction

[0029] figure 1 Shown is a cross-sectional view of a first embodiment of a filter device 1 designed as an oil filter with a filter housing 10 and an inlet 11 and an outlet 14 for the fluid flowing through the filter device 1 . In the filter device 1 a filter medium with a bypass 29 is arranged between the inlet 11 and the outlet 14 . The filter medium has a first filter medium 4 in the form of the finest filter. Arranged on the bypass 29 is a second filter medium 2 which is designed in the form of a coarse filter. A third filter medium 3 in the form of a fine filter can optionally be arranged as a pre-filter upstream of the first filter medium in the direction of flow.

[0030] For regulating the volume flow via the bypass 29 , there is a control mechanism 5 with a plate 6 as the shutter body and a spring 7 as the regulating mechanism. The spring 7 is connected with the plate 6, so that the plate 6 will be squeezed in the direction of the coarsely filtered second filter med...

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Abstract

The present invention relates to a filter device for filtering a fluid, in particular an oil filter. It has at least one filtering medium and a bypass for the filtering medium. Furthermore, an actuator is provided, which influences the flow of the fluid through the bypass as a function of a predetermined parameter of the fluid. The actuator is preferably controlled as a function of the viscosity of the fluid, a differential pressure of the fluid at the filtering medium, and / or the temperature of the fluid.

Description

technical field [0001] The invention relates to a filter device for filtering fluids, for example an oil filter, having at least one filter medium and a bypass for the filter medium. Background technique [0002] In US4402827 it is known to construct a vacuum oil filter with a filter medium for fine filtration and a bypass for use in an automatic transmission, on which a coarse filter medium is also arranged. At low temperatures, if the fluid has a high viscosity, it can flow through the coarse filter media with little drop in pressure drop. At high temperatures, if the fluid is less viscous, it can flow through the finer filter media for higher filtration efficiency. [0003] However, in this construction, even at high temperatures, a partial flow always flows through the coarse filter medium, so that only a small fluid purification effect can be achieved for this portion. However, due to the increasing demands placed on automatic transmissions or internal combustion engi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/04B01D35/147
CPCF16H57/0402B01D35/0273B01D2201/188B01D35/147B01D39/00B01D27/00
Inventor 马库斯·贝尔米夏埃多·雅各布米夏埃多·德德林沃尔夫冈·施陶斯贝格
Owner IBS菲尔特兰塑料金属产品有限责任公司
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