WO2019169572A1 - 一种可清洗机油过滤器组件 - Google Patents

一种可清洗机油过滤器组件 Download PDF

Info

Publication number
WO2019169572A1
WO2019169572A1 PCT/CN2018/078235 CN2018078235W WO2019169572A1 WO 2019169572 A1 WO2019169572 A1 WO 2019169572A1 CN 2018078235 W CN2018078235 W CN 2018078235W WO 2019169572 A1 WO2019169572 A1 WO 2019169572A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
oil
opening
feature
assembly
Prior art date
Application number
PCT/CN2018/078235
Other languages
English (en)
French (fr)
Inventor
张学用
Original Assignee
湖南梓唯汽车环保有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 湖南梓唯汽车环保有限公司 filed Critical 湖南梓唯汽车环保有限公司
Priority to PCT/CN2018/078235 priority Critical patent/WO2019169572A1/zh
Publication of WO2019169572A1 publication Critical patent/WO2019169572A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • 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
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/03—Mounting or connecting of lubricant purifying means relative to the machine or engine; Details of lubricant purifying means

Definitions

  • the invention relates to the technical field of filters, and in particular to a washable oil filter assembly for filtering oil.
  • the manufacturer will install an oil filter on the outer side of the main oil passage of the engine body.
  • the oil filter can filter out the impurities in the oil to keep the oil clean and keep the engine running efficiently and reliably.
  • the existing oil filter has the following disadvantages: First, in order to prevent the oil filter from being blocked due to the failure to replace the filter element in time, a bypass valve is arranged at the bottom of the oil filter, when the oil pressure in the oil filter reaches a constant level, The bypass valve will open to directly send out the unfiltered oil; and because of the under-design of the valve, when it is opened, the dirt block accumulated on the bottom of the oil filter due to its own weight will be sent out to The various components of the engine will adversely affect the operation of the engine and even reduce the life of the engine. Second, due to structural design defects, the entire filter will be replaced each time the filter element is replaced, including the central tube connected to the filter element. Bypassing valves and housings, etc., the replacement cost is too high, which also causes waste of resources.
  • the present invention provides a washable oil filter assembly.
  • the filter has a through hollow cavity and is provided with an oil inlet hole;
  • the paper filter is externally disposed in the hollow cavity, and the oil inlet hole, the paper filter and the hollow cavity constitute a flow passage;
  • the opening and closing assembly is built in the filter, and when the opening and closing assembly is opened and the flow passage is closed, the oil inlet hole, the opening and closing assembly and the hollow cavity constitute a flow passage 2;
  • the magnetic oil purification valve is embedded in the filter and communicates with the hollow body.
  • the filter includes a filter base and a filter top cover detachably coupled to the filter base.
  • the filter base and the filter cap are threaded and the joints are sealed.
  • the filter top cover is provided with an opening 2, and the filter base is provided with an opening 1 , and the opening 2 is in communication with the opening.
  • the filter base includes a first feature and a second feature surrounding the first feature, the first feature has the opening one, and the second feature is coupled to the filter top cover .
  • the oil inlet hole is located on the second feature.
  • the paper filter is located between the first feature and the second feature.
  • the first feature and the second feature are cylindrically disposed coaxially, and the two form an integral structure.
  • the outer wall of the first feature is provided with a porous paper filter inner bracket for fixing the paper filter.
  • a strip magnet is disposed on a side of the filter top cover adjacent to the paper filter.
  • the opening and closing assembly comprises a fixing member and a movable member, wherein the fixing member is provided with a plurality of through holes, wherein the through hole on the side of the fixing member communicates with the oil inlet hole; the movable member is selectively Covering or exposing the through hole in the middle of the fixing member.
  • a support member is disposed on the inner wall of the filter top cover, the fixing member is fixed on the support member, and an elastic member is disposed between the movable member and the bottom wall of the fixing member.
  • the magnetic net oil valve is embedded in the opening two
  • the cleanable oil filter assembly in the embodiment includes a filter, a paper filter, and a opening and closing assembly
  • the oil inlet hole, the paper filter, and the hollow cavity of the filter communicate with each other and constitute a flow passage.
  • the paper filter element that realizes the medium entering the paper filter through the oil inlet hole is filtered, enters the hollow cavity body, and then flows out.
  • the paper filter of the paper filter is clogged, the flow passage formed by the oil inlet hole, the paper filter and the hollow cavity is closed, and the opening and closing assembly and the hollow cavity are changed from a non-conducting state to a conducting state.
  • the medium enters the oil passage hole, the opening and closing assembly and the flow passage formed by the hollow cavity in turn, and then flows out.
  • FIG. 1 is an overall structural view of a washable oil filter assembly of the present invention
  • FIG. 2 is a structural view of a filter top cover of a washable oil filter assembly of the present invention
  • Figure 3 is a view of the filter top cover A of the washable oil filter assembly of the present invention.
  • Figure 4 is a structural view of a paper filter of a washable oil filter assembly of the present invention.
  • Figure 5 is a structural view of a filter base of a washable oil filter assembly of the present invention.
  • Figure 6 is a top plan view of a filter base of a washable oil filter assembly of the present invention.
  • Figure 7 is a schematic view of an engine oil filter base mated with a filter base of a washable oil filter assembly of the present invention
  • Figure 8 is a structural view of a magnetic oil purification valve of a washable oil filter assembly of the present invention.
  • Figure 9 is a schematic view showing the operation of a washable oil filter assembly and a cleaning gun according to the present invention.
  • Figure 10 is a schematic view showing the operation of a washable oil filter assembly opening and closing assembly according to the present invention.
  • the technical solution of the cleanable oil filter assembly of the present invention mainly comprises four components, namely a filter, a paper filter, a magnetic oil purification valve and an opening and closing assembly.
  • the filter has a hollow hollow body, that is, the filter is open at both ends, and has a hollow cavity through the opening.
  • One of the openings is used to embed the magnetic oil purging valve to realize the communication between the magnetic oil purging valve and the hollow cavity, and the other opening is connected to the engine oil filter base for the outflow of the medium.
  • An oil inlet hole is provided in the filter, and the medium flows into the filter through the oil inlet hole. It should be noted that when the filter is not subjected to the cleaning operation, the medium is oil. When the filter is used in conjunction with a magnetic oil purge valve or a cleaning gun for cleaning operation, the cleaning oil flows through the filter.
  • the paper filter is built into the non-cavity body area of the filter, but the paper filter is in communication with the oil inlet and the hollow body, respectively.
  • the oil inlet, the paper filter and the hollow cavity constitute a flow passage, and the medium flows sequentially through the oil inlet hole, the paper filter, the hollow cavity and the opening for the medium to flow out.
  • the opening and closing assembly is built into the filter.
  • the opening and closing assembly is in communication with the oil inlet hole, and the opening and closing assembly is selectively conductive or non-conductive with the hollow cavity.
  • the oil inlet hole and the opening and closing assembly are The hollow cavity constitutes the flow passage 2, and the medium flows sequentially through the oil inlet hole, the opening and closing assembly, the hollow cavity body and the opening for the medium to flow out.
  • the magnetic net oil valve is embedded in the filter and communicates with the hollow body. Specifically, the magnetic net oil valve can also be connected with the cleaning gun to realize the supporting use, and the cleaning gun, the magnetic oil purifying valve and the hollow cavity of the filter form a flow passage 3.
  • the cleanable oil filter assembly in the embodiment includes a filter, a paper filter, and a opening and closing assembly
  • the oil inlet hole, the paper filter, and the hollow cavity of the filter communicate with each other and constitute a flow passage.
  • the paper filter element that realizes the medium entering the paper filter through the oil inlet hole is filtered, enters the hollow cavity body, and then flows out.
  • the filter needs to satisfy the flow of the medium on the paper filter 2 or the opening and closing assembly after entering the filter, and the structure of the filter is not specifically limited.
  • the filter may specifically include a filter base 1 and a filter top cover 3 detachably coupled to the filter base 1.
  • the paper filter 2 is located in the area enclosed by the filter base 1 and the filter top cover 3.
  • the filter top cover 3 can be removed after the cleaning is completed, and then the paper filter 2 is taken out from the filter base 1, and then the new paper filter 2 is replaced and then the filter top is replaced. Cover 3.
  • the filter base 1 and the filter top cover 3 are screwed. Specifically, as shown in FIG. 1, the filter base 1 is provided with an internal thread 108, and the filter top cover 3 is provided with an external thread 302 matched with the internal thread 108.
  • any means for realizing the separation and connection of the filter top cover 3 and the filter base 1 can be performed, and is not limited to the screw connection, and the filter top cover 3 and the filter base 1 can be separated.
  • the purpose is to replace the paper filter 2 according to the actual use.
  • the filter base 1 includes a first feature 106 and a second feature 105, which are integrally formed.
  • the shape and structure of the first feature member 106 and the second feature member 105 are not specifically limited, and the first feature member 106 shown in FIG. 1 is not a hollow cylinder having an opening at both ends, and the second feature member The 105 encloses the first feature 106 and is a hollow cylinder disposed coaxially with the first feature 106. The second feature 105 encloses the first feature 106 with a space therebetween for the paper filter 2.
  • the outer surface 109 of the second feature 105 may be composed of a polygonal outer surface suitable for disassembling the tool attachment filter.
  • the first feature 106 and the second feature 105 are specifically discussed below.
  • the first feature 106 has a through-opening hollow region at both ends, the hollow region forming an oil filter mount channel 6 having an internal thread 103 thereon for use with the engine oil filter base shown in FIG. External thread connection.
  • the filter top cover 3 is provided with an opening 2, and the opening 2 and the inner wall of the first characteristic member 106 and the opening enclose a hollow hollow body of the filter, and the paper filter 2 is located in the hollow cavity. Outside the body.
  • a filter seal 101 may also be provided at the bottom of the filter to seal against the engine oil filter base.
  • the outer wall of the first feature 106 may further be provided with a paper filter inner bracket 107, and the paper filter inner bracket 107 The inner wall and the opening one and the opening two form a through hollow hollow body of the filter.
  • the paper filter inner bracket 107 extends along the length direction of the paper filter 2 and has a length greater than the length of the first feature member 106.
  • the paper filter inner bracket 107 can be a porous aluminum material or a plastic member structure for fixing the paper filter 2 And the overcurrent effect.
  • the medium (oil) enters the filter through the oil inlet hole 102, it is first filtered through the paper filter element 202 of the paper filter 2, and then enters the hollow cavity through the paper filter inner bracket 107, and then passes through the opening first. That is, the oil inlet hole 102, the paper filter 2, the paper filter inner bracket 107, and the hollow cavity form a flow passage 1.
  • the medium that enters the oil inlet of the filter is oil.
  • the filter is used in combination with a magnetic oil purging valve, a cleaning gun, etc., the cleaning oil flows through the filter.
  • the second feature 105 encloses the first feature 106 and is spaced from the first feature 106 for placing the paper filter 2.
  • the second feature 105 is detachably connected to the filter top cover 3, that is, the second feature 105 is provided with an internal thread 108, and the filter top cover 3 is provided with an external thread 302 matching the internal thread 108.
  • the medium (oil) enters the filter base 1 from the oil inlet hole 102, and the oil inlet hole 102 may be provided in a different shape such as a circular hole, a waist hole or an elliptical hole.
  • the number of the oil inlet holes 102 can be set to be plural according to actual needs, for example, the number of the oil inlet holes 102 can be four to six.
  • a rubber check valve 104 may be disposed at the oil inlet hole 102 to prevent the medium (oil) from flowing back after the medium (oil) enters the filter.
  • the filter top cover 3 is provided with an external thread 302 matched with the internal thread 108, and is connected to the second feature 105. Further, an O-ring 303 is disposed between the internal thread 108 of the second feature 105 and the external thread 302 of the filter cap 3 to provide a sealing function.
  • a strip magnet 301 is provided on one side of the filter top cover 3 adjacent to the paper filter 2.
  • the magnet 301 can be a strip-shaped permanent magnet, that is, a flat strip shape as shown in the drawing, and the magnet 301 can be disposed in plurality as needed to strongly adsorb iron impurities in the oil and prolong the service life of the paper filter. , extend maintenance time.
  • the opening and closing assembly is placed on the filter top cover 3, and the opening and closing assembly communicates with the oil inlet hole 102 and selectively communicates with the hollow cavity of the filter.
  • the opening and closing assembly can be:
  • the opening and closing assembly includes a fixing member 305 and a movable member 308.
  • the fixing member 305 is disposed on the opening and closing assembly fixing seat 304 of the filter top cover 3.
  • the fixing member 305 is further in contact with the paper filter 2 to form a pressing end surface. 310. It can be understood that the opening and closing assembly fixing seat 304 is used for fixing the fixing member 305 of the opening and closing assembly to the filter top cover 3.
  • the fixing member 305 is provided with a flow hole 311, and the flow hole 311 is a flow hole located at the side of the fixing member 305, and the medium can enter through the oil inlet hole 102.
  • the fixing member 305 also extends into the hollow cavity of the filter, and the end of the fixing member 305 is provided with a flow through hole 309 and/or a flow through hole 313, a flow through hole 309 and/or a flow through hole 4. Whether 313 and the through hole 311 can be turned on depends on the through hole 307.
  • the fixing member 305 is further provided with a flow hole 3 307, the overflow hole 307 is located in the middle of the fixing member 305, and the movable member 308 can selectively cover or expose the overflow hole 307.
  • an elastic member 312 is disposed between the movable member 308 and the bottom wall of the fixing member 305.
  • the elastic member 312 presses the movable member 308 against the fixing member 305 by using the elastic force of the elastic member 312 to cover the overflow hole 307, and the flow passage 2 is closed.
  • the elastic member 312 contracts, and the movable member 308 moves downward along with the seal sliding seat 306 and the elastic member 312 under the action of the pressure, so that the overflow hole 307 is opened.
  • the flow channel is opened twice.
  • the movable member 308 When the flow channel is in the flow state, the movable member 308 covers the overflow hole 307. In order to achieve the sealing of the movable member 308 and the fixing member 305, a sealing ring sliding seat 306 is disposed therebetween, and the through hole 3307 is not
  • the flow passage two 309 and/or the flow passage four 313 are in communication, and the flow passage two is in a closed state.
  • the movable member 308 exposes the overflow hole 307, the flow passage three 307, the overflow hole 309, and/or the overflow hole 313 and the overflow hole 311 communicate with each other, and the flow passage 2 is in an open state.
  • the paper filter 2 includes a plastic support 201 and a paper filter 202.
  • the plastic support 201 and the paper filter 202 are injection-molded into a unitary structure, and the plastic support 201 and the paper filter inner bracket 107 are set for fixing the paper filter 2.
  • the paper filter element 202 is formed by folding a precision filter paper to filter the oil.
  • the filter top cover 3 is removed, the iron impurities on the strip permanent magnet 301 are wiped off with a clean rag, the base paper filter 2 is taken out, and the filter is wiped with a clean rag. After the base 1 of the device, a new paper filter 2 is loaded, and the filter top cover 3 is covered to complete the cleaning and maintenance operation.
  • the oil overflow hole 401 is cleaned, and after the medium enters from the top of the magnetic oil purification valve, it flows out from the hole and enters each lubrication point for cleaning.
  • the guide bushing 402 acts as a guide for the spool assembly 403.
  • the valve core assembly 403 is composed of a valve core and a sealing member. Specifically, the head of the valve core is provided with a circular arc pit, and a sealing member between the valve core and the tapered surface 405 of the valve body seals the tapered surface 405 of the valve body. effect.
  • the compression spring 404 applies pressure to the spool assembly 403 such that the seal of the spool assembly 403 fits snugly into the valve body tapered surface 405.
  • the inner tapered surface of the valve body 405 is a key sealing surface in the valve body 407.
  • the plug assembly 406 is composed of a threaded mother body, a permanent magnetic material and a rubber sealing ring.
  • the valve body 407 is fixed to the filter top cover 3 and houses components such as the valve core assembly 403 and the plug assembly 406.
  • the dust cover 408 is used to cover the outer surface of the valve body to prevent dust and debris from entering the valve body.
  • the external thread 409 of the thread sealant is pre-coated to seal the thread between the valve body 407 and the filter top cover 3.
  • the flat washer 410 provides a second protection against thread leakage between the valve body 407 and the filter top cover 3.
  • the magnetic oil purification valve 4, the plug assembly 406, and the dust cover 408 constitute a magnetic oil valve assembly, which is used in conjunction with the cleaning gun.
  • the magnetic oil purification valve 4 includes a valve body 407.
  • the front side of the valve body 407 is provided with a guide bushing 402.
  • the side of the guiding bushing 402 is provided with a cleaning oil overflow hole 401.
  • the central portion of the valve body 407 is provided with a tapered hole.
  • the valve seat, the cone hole includes a valve body cone surface 405; the valve sleeve assembly 402 is disposed in the guide shaft sleeve 402, the valve core head of the valve core assembly 403 is provided with a circular arc pit, and the valve core and the valve body cone surface 405 A sealing member is disposed between the valve core of the spool assembly 403 and the guide sleeve 402. A compression spring 404 is disposed on the valve core, and the sealing member of the spool assembly 403 is under the action of the compression spring 404.
  • the valve seat is closed by the tapered surface 405 of the valve body; the outer wall of the central portion of the valve body 407 is provided with an external thread 409 pre-coated with a thread sealant, and the rear portion of the valve body 407 is provided with a hexagonal valve tail and a flat washer 410, and the valve tail
  • An internally threaded plug hole is provided in communication with the tapered bore of the valve seat, and the plug hole is used to embed the plug assembly 406.
  • the cleaning operation process of this application is:
  • the plug assembly 406 is covered with a dust cover 408 to complete the cleaning and maintenance work.
  • the oil flows from the engine filter mount into the filter base 1 along the oil inlet hole 102, opens the rubber check valve 104, and enters the cavity 5 in the filter base 1, and the iron impurities in the oil are stripped in the cavity 5.
  • the permanent magnet 301 is adsorbed, and the iron-free oil in the cavity 5 is filtered by the paper filter 202 in the paper filter 2, and then enters the cavity 8 along the circular hole in the paper filter inner bracket 107, and then the magnetic oil purification valve 4
  • the magnetic second adsorbs the unadsorbed iron impurities in the cavity 5, and the oil flows through the engine oil filter mount channel 6 to the lubrication points.
  • the lubricating oil flows from the engine filter mount into the filter base 1 along the oil inlet hole 102, opens the rubber check valve 104, and enters the cavity 5 in the filter base 1, when the paper filter 202 in the paper filter 2 is clogged,
  • the oil flows through the orifice 311 into the fixing member 305.
  • the elastic member 312 contracts, and the movable member 308 and the sealing ring sliding seat 306 follow the oil flow pressure.
  • the elastic member 312 moves downward, opens the overflow hole 307, the oil flows through the hole, enters the cavity 8 along the overflow hole 309 and/or the overflow hole 313, and then passes through the engine oil filter mount channel. 6 flow to each lubrication point.
  • the filter When the invention previously required cleaning of the engine lubricating oil passage, the filter must be removed and other cleaning connection tools must be connected to perform cleaning.
  • the invention does not need to remove the filter top cover 3 when cleaning and maintenance does not need to replace the paper filter, and the cleaning oil gun of the cleaning device can be directly connected to the magnetic oil purification valve 4 to complete the cleaning and maintenance work. If the paper filter 2 needs to be replaced, the filter top cover 3 can be removed after the cleaning is completed, and the paper filter 2 can be replaced.
  • the invention has simple and convenient operation and saves working time.
  • the die-cast aluminum alloy material is used as the filter base 1
  • the detachable filter top cover 3 is matched with it, and the paper filter 2 can be taken out, and only the paper filter 2 needs to be replaced during maintenance to achieve the purpose of maintenance.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

一种可清洗机油过滤器组件,包括：纸过滤器（2）、磁力净油阀（4）和开合组件，过滤器具有中空腔体，并设有进油孔（102），纸过滤器（2）外置于中空腔体，进油孔（102）、纸过滤器（2）与中空腔体组成流动通道一，开合组件内置于过滤器，当开合组件打开且流动通道一关闭时，进油孔（102）、开合组件与中空腔体组成流动通道二，磁力净油阀（4）嵌入过滤器，并选择性地与中空腔体相通。该结构可以仅更换纸过滤器，操作简单，节约成本。

Description

一种可清洗机油过滤器组件 技术领域
本发明涉及过滤器的技术领域，具体涉及一种对机油进行过滤的可清洗机油过滤器组件。
背景技术
通常，为了过滤发动机的机油，制造厂家会在发动机机体主油道外侧面设置一机油过滤器，该机油过滤器能够过滤掉机油中的杂质，以保持机油的洁净，进而保持发动机有效、可靠的运转。
机油过滤器在长期使用之后，其滤芯会累积大量污物，因此需要定时更换。现有的机油过滤器存在以下不足：一、为了防止不能及时更换滤芯造成机油过滤器的堵塞，会在机油过滤器的底部设置一旁通阀门，当机油过滤器中的油压达到一直程度时，该旁通阀门将打开，将未能过滤的油直接送出；而由于该阀门下置的设计，当其打开时，会将长期因自重而累积在机油过滤器底部的污物块一并送出至发动机的各部件，给发动机的运转带来不良影响，甚至会降低发动机的寿命；二、由于结构设计的缺陷，因此每次更换滤芯时，都会更换整个过滤器，包括与滤芯连设的中心管、旁通阀门及壳体等部件，使得更换成本过高，也造成了资源的浪费。
发明内容
为了解决上述技术问题，本发明提供一种可清洗机油过滤器组件。
本发明一种可清洗机油过滤器组件的技术方案包括：
过滤器、纸过滤器、磁力净油阀和开合组件；
所述过滤器具有贯通中空腔体，并设有进油孔；
所述纸过滤器外置于所述中空腔体，所述进油孔、所述纸过滤器与所述中空腔体组成流动通道一；
所述开合组件内置于所述过滤器，当所述开合组件打开且所述流动通道一关闭时，所述进油孔、所述开合组件与所述中空腔体组成流动通道二；
所述磁力净油阀嵌入所述过滤器，并与所述中空腔体相通。
优选的，
所述过滤器包括过滤器底座和与所述过滤器底座可拆卸连接的过滤器顶盖。
优选的，
所述过滤器底座和所述过滤器顶盖螺纹连接且两者连接处密封。
优选的，
所述过滤器顶盖上设有开口二，所述过滤器底座上设有开口一，所述开口二与所述开口一相通。
优选的，
所述过滤器底座包括第一特征件和包围所述第一特征件的第二特征件，所述第一特征件具有所述开口一，所述第二特征件与所述过滤器顶盖连接。
优选的，
所述进油孔位于所述第二特征件上。
优选的，
所述纸过滤器位于所述第一特征件和所述第二特征件之间。
优选的，
所述第一特征件和所述第二特征件为同轴设置的圆柱形，且两者组成一体结构。
优选的，
所述第一特征件的外壁上设有多孔的纸滤内支架，用于固设所述纸过滤器。
优选的，
所述过滤器顶盖靠近所述纸过滤器的一面设有条形磁铁。
优选的，
所述开合组件包括固定件和活动件，所述固定件上设有若干过流孔，其中所述固定件侧面的过流孔与所述进油孔相通；所述活动件可选择性的覆盖或暴露所述固定件中部所述过流孔。
优选的，
所述过滤器顶盖的内壁上设有支撑件，所述固定件固设于所述支撑件上，所述活动件与所述固定件的底壁之间设有弹性件。
优选的，
所述磁力净油阀嵌入所述开口二
采用上述技术方案的有益效果是：
首先，由于本实施例中的可清洗机油过滤器组件包括过滤器、纸过滤器、和开合组件，过滤器的进油孔、纸过滤器、中空腔体三者相通并构成流动通道一，实现介质经进油孔进入纸过滤器的纸滤芯过滤后进入中空腔体，再流出。其次，当纸过滤器的纸滤芯堵塞后，进油孔、纸过滤器与中空腔体组成的流动通道一关闭，此时开合组件与中空腔体由非导通状态变为导通状态，介质依次进入进油孔、开合组件与中空腔体组成的流动通道二后，再流出。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。
图1为本发明一种可清洗机油过滤器组件的整体结构图；
图2为本发明一种可清洗机油过滤器组件的过滤器顶盖的结构图；
图3为本发明一种可清洗机油过滤器组件的过滤器顶盖A向视图；
图4为本发明一种可清洗机油过滤器组件的纸过滤器的结构图；
图5为本发明一种可清洗机油过滤器组件的过滤器底座的结构图；
图6为本发明一种可清洗机油过滤器组件的过滤器底座俯视图；
图7为与本发明一种可清洗机油过滤器组件的过滤器底座相配合的发动机机油过滤器底座的示意图；
图8为本发明一种可清洗机油过滤器组件的磁力净油阀的结构图；
图9为本发明一种可清洗机油过滤器组件与清洗枪的工作示意图；
图10为本发明一种可清洗机油过滤器组件开合组件开启时的工作示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明一种可清洗机油过滤器组件的技术方案主要包括四个部件，分别为过滤器、纸过滤器、磁力净油阀和开合组件。
上述四个部件的结构和连接关系具体为：
过滤器具有贯通的中空腔体，即过滤器两端开口，且具有一贯穿开口的中空腔体。其中一个开口处用于嵌入磁力净油阀，实现磁力净油阀与中空腔体的相通，另一个开口处可与发动机机油过滤器底座连接，用于介质的流出。
过滤器上设有进油孔，介质通过该进油孔流入过滤器。需要说明的是，当过滤器不进行清洗操作时，介质为机油。当过滤器与磁力净油阀、清洗枪配合使用进行清洗操作时，流经过滤器的则为清洗油。
纸过滤器内置于过滤器的非中空腔体区域，但纸过滤器分别与进油孔和中空腔体相通。当纸过滤器处于过滤状态时，进油孔、纸过滤器与中空腔体组成流动通道一，介质顺次流经进油孔、纸过滤器、中空腔体和用于介质流出的开口。
开合组件内置于过滤器。开合组件与进油孔相通，且开合组件选择性的与中空腔体导通或不通，当流动通道一关闭且开合组件与中空腔体导通时，进油孔、开合组件与中空腔体组成流动通道二，介质顺次流经进油孔、开合组件、中空腔体和用于介质流出的开口。
磁力净油阀嵌入过滤器，并与中空腔体相通。具体的，磁力净油阀还可以与清洗枪相连通实现配套使用，清洗枪、磁力净油阀与过滤器的中空腔体形成流动通道三。
采用上述技术方案的有益效果是：
首先，由于本实施例中的可清洗机油过滤器组件包括过滤器、纸过滤器、和开合组件，过滤器的进油孔、纸过滤器、中空腔体三者相通并构成流动通道一，实现介质经进油孔进入纸过滤器的纸滤芯过滤后进入中空腔 体，再流出。
其次，当纸过滤器的纸滤芯堵塞后，进油孔、纸过滤器与中空腔体组成的流动通道一关闭，此时开合组件与中空腔体由非导通状态变为导通状态，介质依次进入进油孔、开合组件与中空腔体组成的流动通道二后，再流出。
下面将结合附图1至10详细论述过滤器、纸过滤器2、磁力净油阀4和开合组件四个部件及其工作过程。
一、过滤器
在本申请中，过滤器需满足实现介质进入过滤器后在纸过滤器2或开合组件上流动，过滤器的结构不做具体限定。
虽然本申请不具体限定过滤器的结构，但作为本申请的优选方案，如图1所示，过滤器具体可以包括过滤器底座1和与过滤器底座1可拆卸连接的过滤器顶盖3，纸过滤器2位于过滤器底座1和过滤器顶盖3围成的区域内。当需要更换纸过滤器2时，可在清洗完成后拆除过滤器顶盖3，再从过滤器底座1中取出纸过滤器2，然后更换上新的纸过滤器2后再盖上过滤器顶盖3。
在上述技术方案中，过滤器底座1与过滤器顶盖3为螺纹连接。具体的，如图1所示，过滤器底座1上设有内螺纹108，过滤器顶盖3上设有与内螺纹108相配的外螺纹302。
通过上述说明，可以明确的是，任何实现过滤器顶盖3和过滤器底座1可分离或连接的方式均可，不局限于螺纹连接，过滤器顶盖3和过滤器底座1两者可分离的目的在于可根据实际使用情况更换纸过滤器2。
除了过滤器底座1和过滤器顶盖3可拆卸连接外，下面结合附图详细说明过滤器底座1和过滤器顶盖3的结构。
(一)过滤器底座1
过滤器底座1包括第一特征件106和第二特征件105，两者组成一体结构。
第一特征件106和第二特征件105的形状和结构均不做具体限定，不局限于图1中所示的第一特征件106为两端具有开口一的中空圆柱体，第二特征件105包围第一特征件106并为与第一特征件106同轴设置的中空圆柱体。第二特征件105包围第一特征件106且两者之间具有间隔，该间隔用于放置 纸过滤器2。
需要说明的是，如图3所示，第二特征件105的外表面109可由多边形外表面组成，适合于拆卸工具装拆过滤器。
下面分别具体论述第一特征件106和第二特征件105。
(1)第一特征件106
第一特征件106具有两端开口一的贯通中空区域，该中空区域形成机油过滤器安装座通道6，其上设有内螺纹一103，用于与图7所示的发动机机油过滤器底座上的外螺纹连接。与此相配合的是，过滤器顶盖3上设有开口二，该开口二与第一特征件106的内壁及开口一围成过滤器的贯通的中空腔体，纸过滤器2位于中空腔体外侧。
在过滤器的底部还可以设有过滤器密封圈101，与发动机机油过滤器底座之间起密封作用。
为了实现纸过滤器2在第一特征件106与第二特征件105之间的间隔上的固定，第一特征件106的外壁上还可以进一步设置纸滤内支架107，纸滤内支架107的内壁与开口一和开口二形成过滤器的贯通的中空腔体。
纸滤内支架107沿纸过滤器2的长度方向延伸且其长度大于第一特征件106的长度，此外，纸滤内支架107可为多孔铝材质或塑胶件结构，用于固定纸过滤器2及起过流作用。
由此可知，当介质(机油)经进油孔102进入过滤器时，先经纸过滤器2的纸滤芯202过滤，然后通过纸滤内支架107进入中空腔体，然后再通过开口一流出，即进油孔102、纸过滤器2、纸滤内支架107和中空腔体形成流动通道一。需要说明的是，进入过滤器进油孔的介质为机油，当过滤器与磁力净油阀、清洗枪等配合使用进行清洗操作时，流经过滤器的则为清洗油。
(2)第二特征件105
第二特征件105包围第一特征件106并与第一特征件106之间具有间隔，该间隔用于放置纸过滤器2。
第二特征件105与过滤器顶盖3可拆卸连接，即第二特征件105上设有内螺纹108，过滤器顶盖3上设有与内螺纹108相配的外螺纹302。
介质(机油)从该进油孔102进入过滤器底座1，进油孔102可设置为不同形状如圆形孔、腰形孔或椭圆形孔等。进油孔102的数量可根据实际需要 设为多个，如进油孔102的数量可为四至六个。为了防止介质(机油)经进油孔102进入过滤器后发生回流，进油孔102处还可设置橡胶止回阀104，防止介质(机油)进入过滤器后介质(机油)回流。
(二)过滤器顶盖3
过滤器顶盖3上设有与内螺纹108相配套的外螺纹302，与第二特征件105连接。进一步的，第二特征件105的内螺纹108与过滤器顶盖3的外螺纹302之间设有O型密封圈303，起密封作用。
为了实现介质流动过程中铁质杂质的强力吸附，过滤器顶盖3靠近纸过滤器2的一面上设有条形磁铁301。磁铁301可为条形永久磁铁，即图中所示的扁平长条形状，磁铁301可根据需要可设置为多个，对机油中的铁质杂质起强力吸附作用，延长纸过滤器的使用寿命，延长保养时间。
(三)开合组件
在本申请的技术方案中，开合组件置于过滤器顶盖3上，开合组件与进油孔102相通，并选择性的与过滤器的中空腔体相通。具体可以为：
开合组件包括固定件305和活动件308，固定件305设置在过滤器顶盖3所设有的开合组件固定座304上，固定件305还与纸过滤器2相接触，形成压紧端面310。可以理解的是，开合组件固定座304用于将开合组件的固定件305固定在过滤器顶盖3上。
为了实现固定件305与进油孔102的相通，固定件305上设有过流孔一311，过流孔一311为位于固定件305侧面的过流孔，介质可通过进油孔102进入过流孔一311。
此外，固定件305还伸入过滤器的中空腔体内，且固定件305的端部设有过流孔二309和/或过流孔四313，过流孔二309和/或过流孔四313与过流孔一311能否导通取决于过流孔三307。
为了实现流经过流孔一311的介质可选择性的流入过流孔二309和/或过流孔四313并经机油过滤器安装座通道6流出，固定件305上还设有过流孔三307，过流孔307位于固定件305的中部，活动件308可选择性的覆盖或暴露过流孔三307。
具体的，活动件308与固定件305的底壁之间设有弹性件312，弹性件312利用本身的弹力使活动件308压紧固定件305从而覆盖过流孔三307，流动通 道二处于封闭状态，当油流的压力大于弹性件312弹力时，弹性件312收缩，活动件308在压力的作用下跟随密封圈滑动座306及弹性件312一起往下运动，使过流孔三307打开，流动通道二打开。
顺次流经进油孔102、过流孔一311的介质到达过流孔三307时，机油压力达到设定值后，克服弹性件312的弹力，活动件308往下移动使活动件308与固定件305之间产生缝隙，油流通过过流孔三307、过流孔二309和/或过流孔四313，经机油过滤器安装座通道6流入各润滑点，起安全保护作用。
当流动通道一处于流通状态时，活动件308覆盖过流孔三307，为了实现活动件308与固定件305的密封，两者之间设有密封圈滑动座306，过流孔三307非与过流孔二309和/或过流孔四313相通，则流动通道二处于关闭状态。当活动件308暴露过流孔三307时，则过流孔三307、过流孔二309和/或过流孔四313和过流孔一311相通，则流动通道二处于打开状态。
(四)纸过滤器2
如图所示，纸过滤器2包括塑胶支架201、纸滤芯202。塑胶支架201与纸滤芯202注塑成型为一体结构，且塑胶支架201与纸滤内支架107套装，用于固定纸过滤器2。
纸滤芯202由精密滤纸折叠制作而成，对机油起过滤作用。
如须更换纸过滤器2，在完成上所述操作后，拆除过滤器顶盖3，用干净抹布拭去条形永久磁铁301上的铁质杂质，取出原纸过滤器2，用干净抹布擦拭过滤器底座1后，装入新的纸过滤器2，盖上过滤器顶盖3，完成清洗保养操作。
(五)磁力净油阀4
因磁力净油阀先前申请过专利，且磁力净油阀的结构未做改变，此处简要说明各部件组成。具体如下：
清洗油过流孔401，介质从磁力净油阀顶部进入后，从该孔流出进入各润滑点清洗。
导向轴套402，对阀芯总成403起导向的作用。
阀芯总成403，由阀芯跟密封件组成，具体是：阀芯的头部设有圆弧凹坑，阀芯与阀体内锥面405之间密封件，对阀体内锥面405起密封作用。
压缩弹簧404，对阀芯总成403施加压力，使阀芯总成403的密封件牢固 贴合阀体内锥面405。
阀体内锥面405，阀体407内的关键密封面。
堵头总成406，由螺纹母体、永久磁性材料及橡胶密封圈组成。
阀体407，固定于过滤器顶盖3上，内装阀芯总成403及堵头总成406等零件。
防尘盖408，套装用阀体外表面，防止灰尘、杂物等进入阀体内部。
预涂螺纹密封胶的外螺纹409，对阀体407与过滤器顶盖3之间的螺纹起密封作用。
平垫圈410，对阀体407与过滤器顶盖3之间的螺纹泄漏起第二道保护作用。
磁力净油阀4、堵头总成406、防尘盖408构成磁力净油阀组件，与清洗枪配套使用。磁力净油阀4包括阀体407，阀体407前部内设有导向轴套402，导向轴套402的侧面设有清洗油过流孔401；阀体407的中部内设有具有锥孔的阀座，锥孔包括阀体内锥面405；导向轴套402内设有阀芯总成403，阀芯总成403的阀芯头部设有圆弧凹坑，阀芯与阀体内锥面405之间设有密封件；阀芯总成403的头部与导向轴套402之间的阀芯上套设有压缩弹簧404，在压缩弹簧404的作用下阀芯总成403头部的密封件紧贴阀体内锥面405将阀座封闭；阀体407的中部外壁设有预涂螺纹密封胶的外螺纹409，阀体407的后部设有六边形的阀尾和平垫圈410，阀尾设有与阀座的锥孔相通的带内螺纹的堵孔，堵孔用于嵌入堵头总成406。
本申请的清洗操作过程为：
拆除磁力净油阀4上的防尘盖408，用内六角扳手拆下堵头总成406，接上清洗设备的清洗枪后即可开始清洗操作，清洗干净后，卸下清洗枪，拧入堵头总成406，盖上防尘盖408，完成清洗保养工作。
上述可清洗机油过滤组件的功能如下：
机油从发动机过滤器安装座沿进油孔102流入过滤器底座1，打开橡胶止回阀104，进入过滤器底座1中的腔体5，机油中的铁质杂质在腔体5中被条形永久磁铁301吸附，腔体5中的无铁质机油经纸过滤器2中的纸滤芯202过滤后，沿纸滤内支架107上的圆孔进入腔体8中，再由磁力净油阀4的磁性第二次吸附在腔体5中未吸附的铁质杂质，油流经发动机上机油过滤器安装 座通道6流至各润滑点。
润滑油从发动机过滤器安装座沿进油孔102流入过滤器底座1，打开橡胶止回阀104，进入过滤器底座1中的腔体5，当纸过滤器2中的纸滤芯202堵塞后，油流经过流孔一311进入固定件305中，随着油流压力的升高并大于弹性件312的弹力后，弹性件312收缩，在油流压力下活动件308及密封圈滑动座306随弹性件312往下移动，开启过流孔三307，油流经过该孔，沿过流孔二309和/或过流孔四313进入腔体8中，再经发动机上机油过滤器安装座通道6流至各润滑点。
本发明以前需要清洗发动机润滑油道时，必须拆除过滤器，并连接其他的清洗连接工具才能进行清洗。本发明在清洗保养不需要更换纸过滤器时，不用拆除过滤器顶盖3，可将清洗设备的清洗油枪直接接在磁力净油阀4上即可完成清洗保养工作。如果需要更换纸过滤器2，可在清洗完成后拆除过滤器顶盖3，更换纸过滤器2即可。本发明操作简单方便，节省工作时间。
通过对本发明过滤器、纸过滤器2、磁力净油阀4和开合组件四个部件的详细介绍，针对目前过滤器的使用状况，从环保角度出发，采用压铸铝合金材质作为过滤器底座1，并设置可拆开的过滤器顶盖3与之配合，可取出纸过滤器2，在保养时只须更换纸过滤器2就达到保养的目的。
以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (14)

  1. 一种可清洗机油过滤器组件，其特征在于，包括：过滤器、纸过滤器、磁力净油阀和开合组件；
    所述过滤器具有贯通中空腔体，并设有进油孔；
    所述纸过滤器外置于所述中空腔体，所述进油孔、所述纸过滤器与所述中空腔体组成流动通道一；
    所述开合组件内置于所述过滤器，当所述开合组件打开且所述流动通道一关闭时，所述进油孔、所述开合组件与所述中空腔体组成流动通道二；
    所述磁力净油阀嵌入所述过滤器，并选择性的与所述中空腔体相通。
  2. 根据权利要求1所述的可清洗机油过滤器组件，其特征在于，所述磁力净油阀包括阀体，所述阀体前部内设有导向轴套，所述阀体中部内设有带锥孔的阀座，所述导向轴套内设有阀芯总成，所述阀芯总成的头部与所述导向轴套之间套有弹簧，在弹簧的作用下所述阀芯总成的头部选择性的密封所述锥孔。
  3. 根据权利要求1所述的可清洗机油过滤器组件，其特征在于，所述过滤器包括过滤器底座和与所述过滤器底座可拆卸连接的过滤器顶盖。
  4. 根据权利要求3所述的可清洗机油过滤器组件，其特征在于，所述过滤器底座和所述过滤器顶盖螺纹连接且两者连接处密封。
  5. 根据权利要求3或4所述的可清洗机油过滤器组件，其特征在于，所述过滤器顶盖上设有开口二，所述过滤器底座上设有开口一，所述开口二与所述开口一相通。
  6. 根据权利要求5所述的可清洗机油过滤器组件，其特征在于，所述过滤器底座包括第一特征件和包围所述第一特征件的第二特征件，所述第一特征件具有所述开口一，所述第二特征件与所述过滤器顶盖连接。
  7. 根据权利要求6所述的可清洗机油过滤器组件，其特征在于，所述进油孔位于所述第二特征件上。
  8. 根据权利要求6所述的可清洗机油过滤器组件，其特征在于，所述纸过滤器位于所述第一特征件和所述第二特征件之间。
  9. 根据权利要求6所述的可清洗机油过滤器组件，其特征在于，所述第一特征件和所述第二特征件为同轴设置的圆柱形，且两者组成一体结构。
  10. 根据权利要求6所述的可清洗机油过滤器组件，其特征在于，所述第一特征件的外壁上设有多孔的纸滤内支架，用于固设所述纸过滤器。
  11. 根据权利要求3或4所述的可清洗机油过滤器组件，其特征在于，所述过滤器顶盖靠近所述纸过滤器的一面设有条形磁铁。
  12. 根据权利要求3所述的可清洗机油过滤器组件，其特征在于，所述开合组件包括固定件和活动件，所述固定件上设有若干过流孔，其中所述固定件侧面的过流孔与所述进油孔相通；所述活动件可选择性的覆盖或暴露所述固定件中部所述过流孔。
  13. 根据权利要求12所述的可清洗机油过滤器组件，其特征在于，所述过滤器顶盖的内壁上设有支撑件，所述固定件固设于所述支撑件上，所述活动件与所述固定件的底壁之间设有弹性件。
  14. 根据权利要求5所述的可清洗机油过滤器组件，其特征在于，所述磁力净油阀嵌入所述开口二。
PCT/CN2018/078235 2018-03-07 2018-03-07 一种可清洗机油过滤器组件 WO2019169572A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/078235 WO2019169572A1 (zh) 2018-03-07 2018-03-07 一种可清洗机油过滤器组件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/078235 WO2019169572A1 (zh) 2018-03-07 2018-03-07 一种可清洗机油过滤器组件

Publications (1)

Publication Number Publication Date
WO2019169572A1 true WO2019169572A1 (zh) 2019-09-12

Family

ID=67845489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/078235 WO2019169572A1 (zh) 2018-03-07 2018-03-07 一种可清洗机油过滤器组件

Country Status (1)

Country Link
WO (1) WO2019169572A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008030707A1 (en) * 2006-09-05 2008-03-13 Pall Corporation Filter elements and assemblies
CN107091350A (zh) * 2017-06-30 2017-08-25 湖南梓唯汽车环保有限公司 一种改进的磁力净油阀组件
CN206785446U (zh) * 2017-03-29 2017-12-22 索格菲（苏州）汽车部件有限公司 发动机的机油过滤器
CN108119204A (zh) * 2018-03-07 2018-06-05 湖南梓唯汽车环保有限公司 一种可清洗机油过滤器组件
CN207960712U (zh) * 2018-03-07 2018-10-12 湖南梓唯汽车环保有限公司 一种可清洗机油过滤器组件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008030707A1 (en) * 2006-09-05 2008-03-13 Pall Corporation Filter elements and assemblies
CN206785446U (zh) * 2017-03-29 2017-12-22 索格菲（苏州）汽车部件有限公司 发动机的机油过滤器
CN107091350A (zh) * 2017-06-30 2017-08-25 湖南梓唯汽车环保有限公司 一种改进的磁力净油阀组件
CN108119204A (zh) * 2018-03-07 2018-06-05 湖南梓唯汽车环保有限公司 一种可清洗机油过滤器组件
CN207960712U (zh) * 2018-03-07 2018-10-12 湖南梓唯汽车环保有限公司 一种可清洗机油过滤器组件

Similar Documents

Publication Publication Date Title
JP4648971B2 (ja) 浄水器
JP4990290B2 (ja) 排出用にばね作動ピンを備えた交換オイルフィルター
WO2017113860A1 (zh) 一种可单独更换过滤组件的滤芯
CN207960712U (zh) 一种可清洗机油过滤器组件
KR101190220B1 (ko) 오일필터모듈
WO2019169572A1 (zh) 一种可清洗机油过滤器组件
JP3834402B2 (ja) オイルフィルタ
DE2546555A1 (de) Beleuchtungsarmatur
WO2008094990A1 (en) Integral sweep controller for gas membrane separation device
WO2019001096A1 (zh) 一种改进的流体泄装装置
US20060175246A1 (en) Filter apparatus
JP4033739B2 (ja) フィルタ装置
CN108119204A (zh) 一种可清洗机油过滤器组件
CN108361090B (zh) 一种可清洗机油过滤器
CN208138015U (zh) 一种可清洗机油过滤器
US3487942A (en) Filter unit
CN214158799U (zh) 一种新型精密过滤器的滤芯安装结构
CN110272132B (zh) 一种提供多种水质的净水机
JP2004255310A (ja) フィルタ
CN219652711U (zh) 一种污水过滤管组及连续式污水净化器
KR20030078433A (ko) 정수기의 저장탱크
CN212039878U (zh) 一种超滤滤芯组件
CN214654013U (zh) 一种复合滤芯超滤净水器
JP3150057U (ja) 濾過装置
CN210423256U (zh) 一种直回式自封式磁性回油过滤器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18908675

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18908675

Country of ref document: EP

Kind code of ref document: A1