CN104623949B - Filter core and filter unit - Google Patents
Filter core and filter unit Download PDFInfo
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- CN104623949B CN104623949B CN201310568718.6A CN201310568718A CN104623949B CN 104623949 B CN104623949 B CN 104623949B CN 201310568718 A CN201310568718 A CN 201310568718A CN 104623949 B CN104623949 B CN 104623949B
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- filter
- valve
- capping
- passing valve
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Abstract
Filter core (1), including filter medium (11), the first capping (12) and the second capping (13), the capping is connected in the axial end of the filter medium with compact fashion, first capping (12) includes by-passing valve (14), the by-passing valve includes the sealer (141) with sealing margin (142), and for promoting the sealing margin (142) of the sealer to resist the spring element (143) of valve sealing surface (121)；When act on the Fluid pressure in outside of the filter core beyond the Fluid pressure on the inside of it up to a predetermined value when, the sealer, the spring element and the valve sealing surface are for being connected to the outside of the filter core with inside；Wherein, the by-passing valve (14) is located on the outside of the filter core (1), with the filter medium (11) at a distance of axial distance.
Description
Technical field
The present invention relates to filter cores and filter unit, more particularly, to drive in application or hydraulic answer to fluid, for example
Such as automobile, lorry, commercial vehicle and working machine are applied in the filter that fuel or oil in are filtered, the driving.
Background technique
It is known that the filtering of fluid, particularly fuel or oil, is usually to employ filter to realize.Filter includes
Shell, the shell has ladle bowl and lid, described to cover the open end that enclose the ladle bowl, and the shell is equipped with fluid to be filtered
Entrance and the outlet for having filtered fluid；And filter core, for the interior room of shell to be subdivided into two different chambers, wherein the first chamber
It is connected to entrance, the second chamber and outlet.
In this way, it is forced to flow through filter medium from the fluid of filter inlet flow direction outlet, to make in fluid
The impurity that may contain stays in filter medium.
Typical filter core includes tubular filtering medium, for example, pleated filter medium or depth media, and in filter medium
Opposing end portions in a tightening way, i.e. by infrared welding or gluing, it is fixed that there are two cappings.
At least one capping is typically provided with the axis aligned central opening of indulging preferably with filter medium, and the interior room of filter core is worn
It crosses the longitudinal axis and is connected to the entrance of fluid to be filtered, in this case, is set as from interior outwardly through filter medium；Filter core
Interior room or be set as in this case from passing through filter medium inwardly outside with the outlet that has filtered fluid.
Setting up on filter unit has by-passing valve, when the pressure of unfiltered upstream cavity exceeds the pressure in filtered downstream
When up to a predetermined value, for example, because some quantity impurity and/or at low temperature filter medium caused by the diesel oil wax that is formed blocks
And cause, the valve is used to open the channel between the mistress of filter core and interior room；Correspondingly, if filter medium obstruction has exceeded
The threshold limit allowed, then the pressure of upstream cavity (about the upstream of fluid stream and filter medium, can be filter core inner cavity or filter core
Exocoel is specifically dependent upon the stream direction relative to above-mentioned filter medium) threshold value is risen to relative to the pressure of downstream cavity；One
Denier exceeds the value, then valve switches to open position from closed position, to realize the fluid passage for being from upstream to downstream side, avoids passing through
Across the pressure fluid passage of filter medium, and when filter blocks, also allows fluid to circulate.
By-passing valve generally includes sealer and spring element, and the spring element can be dimensioned such that, to work as upstream
When cavity pressure is lower than with certain value and the value beyond downstream cavity pressure or corresponds to threshold value, the spring element is towards sealer
Seat promotion sealer, to ensure the closure of valve；And once exceed the threshold value, then spring element deformation, with allow sealer with
Its seat separation, so that valve be allowed to open；Correspondingly, the sealer includes sealing margin, when its contacted with valve base surface and by
When spring element is pressed against the surface push/pull, the sealing margin is used to ensure closing for the channel between upstream cavity and downstream cavity
It closes.
The by-passing valve is arranged on several positions, this is known.A kind of possible valve setting is in strainer cover
On, it is connected to the lid or the cylinder-shaped body with the lid for integral type, it is main that the by-passing valve is mounted on the cylinder
On body or be integrated with formula setting.In this manner it is achieved that the filter core usually assembled together with strainer cover, must be used to ensure with
The close connection of by-passing valve, that is, by washer, to ensure the sealing between upstream cavity and downstream cavity.
The scheme has some defects, one of them is the fastening that valve only can ensure that low reliability；In addition, the scheme
It is expensive, this is because being provided with additional washer between filter core and by-passing valve.
Scheme known to another kind is that by-passing valve is arranged on filter core.The usual integral type of valve is integrated to a support
Guan Shang, the support tube are arranged in the inner space defined by filter medium and end capping, and the support tube is for carrying
Medium with capping, avoids filter medium from collapsing, such as since the fluid stream on the inside of filter core to outside causes.Correspondingly,
By-passing valve can be integrated on support tube with integral type, or installation is on the part.
The defect of the scheme further relates to internal empty in the complicated form and filter core of support tube (needing to accommodate by-passing valve)
Between missing；The latter leads to the discontinuous fluid stream on filter inner cavity, and limits the size of the chamber, this is because valve
There are caused.In other words, due to the presence of by-passing valve, (it can be annular to the internal diameter of the internal diameter of support tube and filter medium
) minimum value cannot be less than, this is because the valve need to be dimensioned such that, to ensure the fluid from upstream side to downstream side
Smallest passage.
It is an object of the present invention to provide a kind of simple, reasonable and low price schemes, to overcome the above-mentioned prior art to lack
It falls into.
Above-mentioned purpose is realized by the feature of the invention for including in independent claims.Dependent claims are sketched the contours of
Preferred and/or especially preferred aspect of the invention.
Summary of the invention
Particularly, the present invention provides a kind of filter cores comprising filter medium, the first capping and the second capping, the envelope
Lid is connected to the axial end of the filter medium with compact fashion, and first capping includes by-passing valve, the by-passing valve packet
The sealer with sealing margin is included, and for forcing the sealing margin of sealer to resist the spring element of valve sealing surface；
Fluid pressure on the outside of filter core beyond its fluid inside pressure up to a predetermined value when, the sealer, the spring element and
The valve sealing surface is for being connected to the outside of filter core with inside.According to the present invention, on the by-passing valve is located on the outside of filter core,
With filter medium at a distance of one section of axial distance.
Due to this scheme, the sealing reliability on the outside of filter core with inside will not be influenced by existing for by-passing valve；It is true
On, the valve is included on filter core, and avoiding on filter core has any additional sealing element or another separate part；Without additional
Washer further makes the cost of this programme be lower than the cost of the prior art, this is because expensive component, such as washer, quilt
It is omitted.
In addition, the scheme allows the inner cavity of filter core to have correct size, also permission (annular) medium has correct ruler
Very little, this is because by-passing valve is external relative to medium, thus the size of the medium is no longer by the obstruction of by-passing valve.Also,
The direction of fluid stream not because valve there are due to deviate, it is ensured that uniform fluid stream in filter core.
Another aspect of the present invention is that the first capping includes towards casing axially extending on the outside of filter core, the by-passing valve
It is arranged in described sleeve pipe.
The scheme realize it is absolute close between the simplification and valve and filter core of filter core configuration, by described two dresses
Integral type is set to be integrated in a component.
Another aspect of the present invention provides, and the axially free end of described sleeve pipe includes the side to form valve sealing surface
Edge and channel, wherein the sealer can be slided along channel, and the spring element promotes the sealing margin to resist valve sealing
Surface.
Due to this configuration, the integral type of by-passing valve and filter core is arranged to improve, this is attributed to valve sealing surface and straight
Connect the sealer channel being arranged in filter core capping.
Another aspect of the present invention provides, and the spring element is connected in side with sealer, and abuts against setting
Edge on casing free terminal.
This scheme allows valve member to be simply assembled in filter core capping；Then, due to spring element and sealer and
The interaction of filter core capping, realizes the internal structure including filter core and by-passing valve.
Another aspect of the present invention is that first capping includes the radial tooth connection being placed in outside by-passing valve.
This scheme allows attachment device and by-passing valve integral type to be integrated in filter core capping, to allow to constitute the filter
The use of core rather than the standard component of the capping.That is, the filter core may include standarized component, for example, filter medium, capping,
Support tube etc.；Meanwhile depend on practical filter core purposes, with required by-passing valve and required attachment device capping appropriate and
The standarized component assembles together.
In addition, the present invention provides filter units comprising shell, the shell have the closing of axial end,
The ladle bowl of another axial end opening, open end lid closing, the unit further comprises filter core, and the filter core will
The inner space that shell defines is separated into the first chamber and the second chamber, and first chamber is connected to fluid inlet, the second chamber connection
Fluid outlet, the filter core include filter medium, the first capping and the second capping, and the capping is connected to described with compact fashion
The axial end of filter medium, first capping includes by-passing valve, and the by-passing valve includes the sealer with sealing margin
And spring element, the spring element is for promoting sealer sealing margin to resist valve sealing surface, the fluid on the outside of filter core
Pressure beyond its fluid inside pressure up to a predetermined value when, the sealer, the spring element and the valve sealing surface are used
In being connected to the outside of filter core with inside.According to the present invention, on the by-passing valve is located on the outside of filter core, with filter medium at a distance of axis
To distance.
This scheme realizes the outside of filter core and the sealing reliability of inside, because the sealing is not by the presence of by-passing valve
Influence；In fact, the valve is included on filter core, avoiding on filter core has any additional sealing element or another independent portion
Part；In addition, and avoiding the cost for then further making this programme using additional washer lower than the cost of the prior art, this is because valence
Component, such as washer of lattice valuableness, are omitted.
In addition, the scheme allows the inner cavity of filter core to have correct size, also permission (annular) medium has correct ruler
Very little, this is because by-passing valve is external relative to medium, thus the size of the medium is no longer by the obstruction of by-passing valve.Also,
The direction of fluid stream not because valve there are due to deviate, it is ensured that uniform fluid stream in filter core.
Another aspect of the present invention is that the capping of filter core first includes towards casing axially extending on the outside of filter core, the side
Port valve is arranged in described sleeve pipe, and support tube is arranged on ladle bowl, and the support tube has connection end, which uses
Be connected on ladle bowl in by support tube, also have be used to support the fluid channel between the outside of pipe and inside, it is with holes in
Permeable part, and the closing free terminal with permeable needle are entreated, it is described when the filter core is located in its installation site
Permeable needle is used to rest on the opening from the filter core casing, and when the by-passing valve is located on its open position,
The permeable needle allows for the fluid channel between on the inside of the by-passing valve and the filter core.
Due to this configuration, when filter core is inserted into and is located on its operating position, filter core be maintained at it relative to ladle bowl and
On the central location of speech；The certralizing ability be ensured by the scheme of simple and inexpensive, such as by filter core cover set
The opening being in control, and the needle extended from support tube free terminal.Further, since support tube is connected on filter ladle bowl, and
It is not included in filter core, therefore, replaceable cartridge is simplified.
Preferably, cross shaped head is presented in the permeable needle.
Another aspect of the present invention is that the capping of filter core first includes the radial tooth connection being placed in outside by-passing valve, the company
Connection device can be connected with each attachment device covered is arranged in.
It is integrated in the upper integral type of filter core capping that this programme allows attachment device and by-passing valve, to allow to filter using composition
Core rather than capping standard component.That is, the filter core may include standarized component, such as filter medium, capping, support tube etc.；Together
When, practical filter core purposes is depended on, the capping appropriate with required by-passing valve and required attachment device is assembled in described
On standarized component.
Detailed description of the invention
The explanation that following non-limiting way is illustrated is read in conjunction with the accompanying drawings, and further characteristic of the invention and advantage will
It is clear to present, in which:
Fig. 1 is the cross-sectional view for the axis that filter core according to the present invention is defined along the filter core；
Fig. 2 is the amplification detail view of Fig. 1；
Fig. 3 is the filter unit cross section of axis that is according to an embodiment of the invention, being defined along filter unit
Figure；
Fig. 4 is the cross-sectional view along the filter unit of axis IV-IV shown in Fig. 3.
Specific embodiment
Filter unit 2 shown in Fig. 3 is the filter for filtering fluid, such as fuel or oil, is especially intended to use
In the filter of diesel engine, it is especially useful in automobile, truck, commerial vehicle or self-propelled work car diesel engine.
Filter 2 includes external shell, is defined by the ladle bowl 21 of beaker-type shape and lid 22, is used to close ladle bowl
21 open end.
Filter unit 2 includes the entry conductor 211 for fluid to be filtered, and the delivery channel for having filtered fluid
212；The entrance and exit conduit 31,42 is preferably provided on ladle bowl 21.
As shown in figure 3, being provided with filter core 1 in the inner space defined by filter external shell, the filter core includes
Filter medium 11, can be pleated medium or depth media and upper capping 12 and underseal lid 13, known to the capping utilization
Technology is closely connected with filter medium, such as passes through gluing, infrared welding etc..
The interior room of filter housings is divided into inner cavity 4 and exocoel 3 by the filter core 1, and the inner cavity 4 is by filter medium 11
12,13 limitation of inner space and capping, the exocoel 3 are arranged in the room between shell and filter core.
As shown in Figure 1, the washer 132 that bottom cover 13 has medium pore 131 and is arranged on the hole；The medium pore 131
It is used to assemble in a manner of close and can be removed with support tube 23 with the washer 132, the support tube 23 is arranged in filter
On ladle bowl, as described below.
As depicted in figs. 1 and 2, upper capping 12 is provided with by-passing valve 14；The valve is made of sealer 141 and spring 143,
The sealer 141 has sealing margin 142 on an end, has spring base 144 on another end；The spring base
Including groove, with suitable shape, to accommodate spring thread, and it is maintained at the screw thread in axial seat；141 He of sealer
Spring 143 is assembled on valve seat, and the valve seat is located in the upper capping 12 of filter core.
According to the present invention, valve seat, sealer 141 and spring 143 etc. and by-passing valve 14 are placed in the outside of filter core 1, with
Filter medium 11 is separated by an axial distance.In the preferred embodiment shown in the drawings, by-passing valve 14 is relative to the external of filter core capping 12
It is by the way that from capping 14 towards the outside of filter core, axially casing 122 outstanding is obtained, and by-passing valve 14 is assembled in described sleeve pipe
On 122 axially free end 123.
Correspondingly, the free terminal 123 of casing is covered by constituting with the end of of channel 125, the channel 125
Internal diameter is less than the internal diameter of casing 122；The planar annular part that the internal diameter of internal diameter and channel 125 from casing 122 obtains indicates valve
Sealing surfaces 121, here, sealer sealing margin 142 are pushed by spring 143, to obtain valve closure.Correspondingly, sealer
141 be located at on the opposite axial end in the setting end of spring base 144 comprising the end of 145, this end of 145 outside
Diameter is greater than the diameter of sealer center portion, also greater than the diameter in channel 125；The annular obtained from the end of and channel diameter
Part indicates sealer sealing margin 142.
During by-passing valve is assembled in filter core capping, the by-passing valve and filter core capping are all as depicted in figs. 1 and 2
Embodiment is configured, and the free terminal of the sealer with spring base 44 is inserted through the end of channel 125 of casing free terminal
Enter.Once sealer sealing margin 142 contacts valve sealing surface 121, then spring 143 may be inserted on casing last part 123,
And it is assembled together with the spring base of sealer 144.Therefore, spring element is compressed in its installation site, is pressed against casing free terminal
It pushes, and pulls sealer, through its free terminal, axially outwards relative to valve seat, sealer sealing margin 142 is made to be pushed to valve
Seating face 121 pushes.
The sealer and valve seat size and spring performance (elasticity modulus, the diameter of thread, thread-whirling number etc.) occur
Change in size, to ensure valve closure (the sealer sealing margin through being in contact with valve sealing surface), until reaching or beyond threshold
Duty pressure value.The valve is made of the pressure difference between exocoel 3 and inner cavity 4.In the specific embodiment of diagram, when fluid is from outer
It is described if the pressure of exocoel 3 has exceeded the pressure of inner cavity 4 up to a predetermined value when chamber 3 flows to inner cavity 4 through filter medium 11
Outer cavity pressure makes sealer 141 from its detent position (sealer sealing margin 142 is in contact with valve sealing surface 121 here)
It is axially moved to its open position (sealer sealing margin 142 is separated with valve base surface 121 here), makes fluid passage from outer
Chamber 3 is opened to inner cavity 4, and fluid is allowed to flow the forced path without flowing through filter medium 11.
An alternate embodiment according to the present invention, flow direction can be from the inner cavity of filter core to exocoel, this
In situation, when chamber pressure exceeds threshold value than outer cavity pressure, the valve is configured to that valve is allowed to open.
Independently of the direction of fluid stream, by-passing valve 14 is placed on the outside of filter core 1, and it is axial to be separated by one with filter medium 11
Distance.Due to this scheme, the outside of filter core 1 and the sealing reliability of inside will not be influenced by existing for by-passing valve 14；Thing
In reality, the valve 14 includes on filter core 1, and avoiding on filter core has any additional sealing element or another separate part；And do not have
There is additional washer, the cost of this programme is further made to be lower than the cost of the prior art, this is because expensive component, such as padding
Circle, is omitted.In addition, the scheme allows the inner cavity 4 of filter core and medium 11 to have correct size, this is because bypass
Valve is external relative to medium, thus the size of the medium is no longer by the obstruction of by-passing valve.Also, the direction of fluid stream not because
The presence of valve and deviate, it is ensured that uniform fluid stream in filter core.
In a preferred embodiment, tooth connection 126 is radially located at the outside of casing 122, for the filter on filter unit 2
Core connection.
As described above, filter core 1 is replaceable on filter unit 2.In Fig. 3 and embodiment shown in Fig. 4, filtering
Device unit includes the shell with ladle bowl 21, and it is opening in another end that the ladle bowl, which is closed in an axial end,
The open end is closed by lid 22, such as by being located at the male thread portion covered, is suitable for and female spiral shell for being located on ladle bowl
Line part is connected.
In the closed end of ladle bowl 21, equipped with the entry conductor 211 for entering unfiltered fluid, and for being discharged
Filter the delivery channel 212 of fluid.Entry conductor 211 is prejudicially arranged relative to filter shaft, and delivery channel 212 with it is described
Axis is concentrically disposed with.Alternatively, entry conductor can be concentric, and delivery channel can be partially relative to filter housings
The heart.Further, it can be set on lid 22 according to an alternate embodiment, entrance and/or delivery channel, rather than tank
On shell.
The support tube 23 being arranged concentrically relative to filter housings is connected on delivery channel 212.The pipe has opening
End and closed end；In open end, it is equipped with attachment device 231, i.e. threaded portion, for allowing the freely end of support tube
End is connected with filter ladle bowl 21.In the middle section of the tank, equipped with infiltration part 232 with holes, it is used to allow described
Fluid communication between the outside and inside of pipe, and be thus connected with the opening free terminal of support tube.The freedom being closed from pipe
End 233, axially external protrusion of the permeable needle 234 towards pipeline 23；Permeable needle set has shape appropriate, to allow fluid stream
Even if being assembled on calibration hole through the needle, when the needle.Due to this shape, it is ensured that permeable needle 234 and receiving opening it
Between have space/groove, to allow fluid to flow through the channel of the space/groove.It, can in Fig. 3 and embodiment shown in Fig. 4
Infiltration needle 234 shows cross shaped head.
Appropriate attachment device 221 of the filter core 1 through being located on lid 22 is connected on the lid 22, the attachment device 221
Size permission snapped connection with the tooth connection 126 being located on filter core 1.
Once the lid with filter core is located at it in the installation site of filter ladle bowl 21, then the underseal lid of filter core 1 is located at
Washer 132 on 13 is shelved to be in contact with support tube 23, is especially in contact with the non-permeate portion of its outer surface, to ensure to filter
Compactness between the exocoel 3 defined of core 1 and inner cavity 4.At the same time, permeable needle is inserted in is obtained by filter core capping casing 122
To opening 127 in.Due to this configuration, when filter core is inserted into and is located on its operating position, filter core 1 be maintained at its relative to
On the central location of ladle bowl 21；The certralizing ability is to be ensured by the scheme of simple and inexpensive, such as covered by filter core
The opening 127 that 12 casing 122 obtains, and the permeable needle 234 extended from support tube free terminal.Further, since support tube
23 are connected on filter ladle bowl 21, and replaceable cartridge is simplified, this is to be included in filter not as field-replaceable unit because of it
In core.
Due to the cross shaped head of permeable needle 234, four accesses have been obtained, positioned at the permeable needle 234 and had been come from
Filter covers between the opening 127 of casing 122.When bypass valve 14 is located on its open position, the access is realized from outer
Chamber 3 arrives the fluid channel of inner cavity 4；To ensure to realize the fluid channel between permeable needle 234 and filter core inner cavity 4, on filter core
Axial space is provided between lid 12 and support tube closure free terminal 233.
At work, unfiltered fluid enters exocoel 3, passes through entry conductor 211.Later, fluid flows through filter medium
11, allow the impurity carried to unfiltered fluid to separate.Filtered fluid subsequently enters the inner cavity 4 of filter core, passes through branch
The permeable part 232 of stay tube, to be discharged from delivery channel 212 by the open end 231 of support tube.
If pressure of the pressure of exocoel 3 beyond inner cavity 4 is up to a predetermined value, for example, the obstruction due to filter medium causes,
Sealer sealing margin 142 then is separated from valve sealing surface 121 against the pressure of bypass valve action, is not filtered to realize
Fluid makes it be not passed through filter medium from exocoel 3 to the channel of inner cavity 4.Once fluid has passed through sealer sealing margin 142
With the space between valve sealing margin, then fluid flows through the fluid channel that permeable needle 234 is formed with opening 127；Then, non-mistake
Filter fluid flows through the axial space on filter core between capping 12 and supporting element closed end 233, and enters filter core inner cavity 4；Later,
Fluid has been filtered to be discharged from the open end 231 of support tube and delivery channel 212.
When cavity pressure is down to threshold pressure or less, spring force overcomes the pressure difference between two chambers 3,4, to permit
Perhaps sealer 141 slides off valve seat, also, due to the contact between sealer sealing margin 142 and valve base surface 121, valve
It is maintained on its closed position, and prevents the connection between two chambers.
The present invention should be contemplated that, including a variety of improvement and deformations, these are all within the scope of theory of the invention.
In addition, all details can all be substituted by other technologies equivalent elements.
It is practicing, used material and shape and size can all be altered as desired, without departing from the protection of claim
Range.
Claims (9)
1. filter core (1), including filter medium (11), the first capping (12) and the second capping (13), the capping is with compact fashion
It is connected in the axial end of the filter medium, first capping (12) includes by-passing valve (14), and the by-passing valve includes
Sealer (141) with sealing margin (142), and it is close for promoting the sealing margin (142) of the sealer to resist valve
Seal the spring element (143) of surface (121)；When the Fluid pressure in the outside for acting on the filter core is beyond the fluid pressure on the inside of it
When power is up to a predetermined value, the sealer, the spring element and the valve sealing surface be used to making the outside of the filter core with
Inside connection；Wherein, the by-passing valve (14) is located on the outside of the filter core (1), with the filter medium (11) at a distance of axis
To distance.
2. filter core (1) according to claim 1, which is characterized in that first capping includes towards the outside of the filter core
Axially extending casing (122), the by-passing valve are arranged on described sleeve pipe (122).
3. filter core (1) according to claim 2, which is characterized in that the axially free end (123) of described sleeve pipe includes shape
At the edge and channel (125) of valve sealing surface (121), wherein the sealer (141) can be sliding along the channel (125)
It is dynamic, and the spring element (143) promotes the sealing margin (142) to resist the valve sealing surface (121).
4. filter core (1) according to claim 3, which is characterized in that the spring element (143) is in side and the closing
Device (141) is connected, and abuts against the edge being arranged on the free terminal (123) of described sleeve pipe (122).
5. filter core (1) according to claim 1, which is characterized in that first capping (12) includes being radially arranged in institute
State the external tooth connection (126) of by-passing valve (14).
6. filter unit (2), including shell, the shell has the tank of axial end closing, another axial end opening
Shell (21), end lid (22) closing of opening, the filter unit further comprises filter core (1), and the filter core will be described
The inner space that shell defines is separated into exocoel (3) and inner cavity (4), and the exocoel is connected to fluid inlet (211), the inner cavity
(4) be connected to fluid outlet (212), the filter core (1) include filter medium (11), first capping (12) and second cover (13),
Described to cover the axial end that the filter medium is connected to compact fashion, first capping includes by-passing valve (14), institute
Stating by-passing valve includes sealer (141) and spring element (143) with sealing margin (142), and the spring element is for promoting
The sealer sealing margin (142) is set to resist valve sealing surface (121), when the Fluid pressure in the outside for acting on the filter core
When beyond its fluid inside pressure up to a predetermined value, the sealer, the spring element and the valve sealing surface are for making
The outside of the filter core (1) is connected to inside；Wherein, the by-passing valve (14) is located at the outside of the filter core, with the filtering
Medium (11) is at a distance of axial distance.
7. filter unit (2) according to claim 6, which is characterized in that it includes court that the filter core first, which covers (12),
The axially extending casing in the outside of the filter core (122), the by-passing valve are arranged in described sleeve pipe, and support tube (23) is arranged
On ladle bowl, the support tube has connection end (231), which is used to the support tube being connected to institute
It states on ladle bowl, also there is the permeable portion in the center fluid channel between the outside and inside for the support tube, with holes
Divide (232), and the closing free terminal (233) with permeable needle (234), when the filter core is located in its installation site
When, the permeable needle works as the by-passing valve for resting on the opening (127) from the filter core casing (122)
(14) when being located on its open position, the permeable needle (234) allows for the interior of the by-passing valve (14) and the filter core
Fluid channel between side.
8. filter unit (2) according to claim 7, which is characterized in that X-shape is presented in the permeable needle (234)
Shape.
9. filter unit (2) according to claim 7, which is characterized in that it includes diameter that the filter core first, which covers (12),
To the external tooth connection (126) of the by-passing valve (14) is placed in, which can be with each connection of the setting on the lid (22)
Device (221) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568718.6A CN104623949B (en) | 2013-11-15 | 2013-11-15 | Filter core and filter unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310568718.6A CN104623949B (en) | 2013-11-15 | 2013-11-15 | Filter core and filter unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104623949A CN104623949A (en) | 2015-05-20 |
| CN104623949B true CN104623949B (en) | 2019-06-04 |
Family
ID=53203479
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310568718.6A Active CN104623949B (en) | 2013-11-15 | 2013-11-15 | Filter core and filter unit |
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| CN (1) | CN104623949B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351723A (en) * | 2015-12-11 | 2016-02-24 | 德文能源股份有限公司 | Lubricating oil filter device |
| DE102016000157B4 (en) * | 2016-01-12 | 2021-10-14 | Mann+Hummel Gmbh | Filter system, closure element and filter element |
| CN107050958B (en) * | 2017-05-16 | 2023-05-09 | 成都易态科技有限公司 | Filter element |
| CN109011779B (en) * | 2018-09-06 | 2021-04-30 | 河南航天液压气动技术有限公司 | Filter and filter element assembly thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101539045A (en) * | 2009-04-13 | 2009-09-23 | 奇瑞汽车股份有限公司 | Gas and oil separating plant for internal combustion engine |
| CN102223936A (en) * | 2008-11-26 | 2011-10-19 | Hydac过滤技术有限公司 | Filter device and filter element |
| CN202113685U (en) * | 2011-04-29 | 2012-01-18 | 柳州日高过滤器有限责任公司 | Straight gyrus type return oil filter for construction machinery |
| CN203648186U (en) * | 2013-11-15 | 2014-06-18 | 上海索菲玛汽车滤清器有限公司 | Filter element and filter unit |
-
2013
- 2013-11-15 CN CN201310568718.6A patent/CN104623949B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223936A (en) * | 2008-11-26 | 2011-10-19 | Hydac过滤技术有限公司 | Filter device and filter element |
| CN101539045A (en) * | 2009-04-13 | 2009-09-23 | 奇瑞汽车股份有限公司 | Gas and oil separating plant for internal combustion engine |
| CN202113685U (en) * | 2011-04-29 | 2012-01-18 | 柳州日高过滤器有限责任公司 | Straight gyrus type return oil filter for construction machinery |
| CN203648186U (en) * | 2013-11-15 | 2014-06-18 | 上海索菲玛汽车滤清器有限公司 | Filter element and filter unit |
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| CN104623949A (en) | 2015-05-20 |
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