CN115434832A - Carbon canister ash filter and filter element blockage alarm system - Google Patents
Carbon canister ash filter and filter element blockage alarm system Download PDFInfo
- Publication number
- CN115434832A CN115434832A CN202211175772.XA CN202211175772A CN115434832A CN 115434832 A CN115434832 A CN 115434832A CN 202211175772 A CN202211175772 A CN 202211175772A CN 115434832 A CN115434832 A CN 115434832A
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- filter
- filter element
- pressure sensor
- chamber
- cavity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0854—Details of the absorption canister
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices
- F02M35/042—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices combined with other devices, e.g. heaters ; for use other than engine air intake cleaning, e.g. air intake filters arranged in the fuel vapour recovery system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
- F02M35/09—Clogging indicators ; Diagnosis or testing of air cleaners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a carbon canister ash filter and filter element blockage alarm system, wherein the carbon canister ash filter comprises a shell assembly and a filter element assembly arranged inside the shell assembly, a first chamber is formed inside the filter element assembly, a second chamber is formed between the outside of the filter element assembly and the shell assembly, and the shell assembly is provided with an air inlet for communicating the second chamber with the outside and an air outlet for communicating the first chamber with the outside; the filter element assembly comprises a first pressure sensor arranged in the first cavity and a second pressure sensor arranged in the second cavity, and the carbon canister ash filter can respectively measure the real-time air pressure values in the first cavity and the second cavity which are positioned at the inner side and the outer side of the filter element; filter core blocks up alarm system includes on-vehicle controller, display module and as above the charcoal canister ash strain, can realize in time discovering and filtering the jam to the user suggestion charcoal canister ash.
Description
Technical Field
The invention relates to a carbon canister ash filter for an automobile, in particular to a carbon canister ash filter and filter element blockage alarm system.
Background
Canister dust filters (also known as canister dust filters) are common components of fuel evaporation systems and are installed at the end of a canister air-to-atmosphere duct to ensure that air entering the canister can be filtered and avoid damage to parts such as CVS valves and canisters due to dust entering the system. The traditional carbon canister ash filter structure is simple in design, when the built-in filter element reaches the maximum ash storage amount, no warning is sent, and the smoothness of refueling of a client is often caused to cause frequent refueling and gun skipping; meanwhile, due to ash filter blockage, when the system performs OBD diagnosis, related faults can occur, misjudgment can be caused, parts are replaced by mistake, and great complaints are caused to customers.
CN110529306A discloses a real-time monitoring device and a monitoring method for service life of an automobile filter, comprising: air cleaner, filter element unit, filter unit and data terminal, filter element unit and air cleaner internal connection, the filter unit is fixed in on air cleaner's the top shell, and data terminal is connected with the filter unit. Wherein, the filter unit includes: the vehicle unit, pressure sensing system, sealed mounting structure, data transmission interface, fastening screw and filter element unit contact foot. Compared with the prior art, the invention has the anti-counterfeiting detection function; the vehicle information can be read, and the data can be conveniently and accurately obtained; through a new algorithm, more accurate service life prediction can be obtained; the system has a real-time feedback function, and timely replacement reminding is guaranteed. Needless to say, the technical solution disclosed in the above patent document is a useful attempt in the technical field.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a canister ash filter, which can measure real-time air pressure values inside a first chamber and a second chamber respectively located inside and outside a filter element; the invention also aims to provide a filter element blockage alarm system, which can find and prompt a user of carbon canister ash filter blockage in time, reduce the probability risk of frequent gun skipping or other OBD faults in the customer refueling process and achieve the purpose of improving customer satisfaction.
The carbon canister ash filter comprises a shell assembly and a filter element assembly arranged inside the shell assembly, wherein a first chamber is formed inside the filter element assembly, a second chamber is formed between the outside of the filter element assembly and the shell assembly, and the shell assembly is provided with an air inlet enabling the second chamber to be communicated with the outside and an air outlet enabling the first chamber to be communicated with the outside; the filter element assembly comprises a first pressure sensor arranged in the first cavity and a second pressure sensor arranged in the second cavity.
Further, the filter element group spare still includes filter core body, upper end cover and lower extreme cover, the filter core body is the tube-shape, upper end cover and lower extreme cover are right respectively the upper and lower both ends of filter core body seal, so that the inside of filter core body forms first cavity, the middle part of lower extreme cover is seted up and is used for making first cavity with the communicating end cover hole of gas outlet.
Further, the upper end cover comprises an upper cover body, an inner support, an outer support and a connector; the upper cover body can seal the filter element body; the inner support extends into the first cavity, the upper part of the inner support is connected with the middle part of the upper cover body, and the lower part of the inner support is connected with the first pressure sensor; the outer bracket is positioned between the filter element body and the shell assembly, the upper part of the outer bracket is connected with the edge of the upper end cover body, and the lower part of the outer bracket is connected with the second pressure sensor; the first pressure sensor and the second pressure sensor are respectively connected with the connector through wiring harnesses, and the connector extends out of the shell assembly.
Further, the casing assembly includes the upper housing and with the lower casing that the upper housing is connected, it is used for holding to go up to form between casing and the lower casing the cavity of filter element group spare, the top of going up the casing is seted up and is used for supplying the casing hole that the connector passed.
Further, the lower housing includes a circular bottom plate and a connection ring; the connecting ring extends upwards out of the round bottom plate, the lower portion of the upper shell is clamped with the connecting ring, and the air inlet is formed in the connecting ring.
Furthermore, the lower shell further comprises an air outlet pipe, a pipe joint is arranged at the position, corresponding to the end cover hole, of the circular bottom plate, the head end of the air outlet pipe is connected with the pipe joint, and the tail end of the air outlet pipe is communicated with the outside to form the air outlet.
Furthermore, the inner support and the outer support are both provided with clamping holes, and the first pressure sensor and the second pressure sensor are both provided with buckles used for being matched with the clamping holes.
Furthermore, the positions of the clamping holes on the inner support and the outer support in the up-down direction are the same.
The filter element blockage warning system comprises an on-board controller, a display module and the carbon canister ash filter, wherein the first pressure sensor can monitor a real-time air pressure value P1 in the first cavity and send the real-time air pressure value P1 to the on-board controller, the second pressure sensor can monitor a real-time air pressure value P2 in the second cavity and send the real-time air pressure value P2 to the on-board controller, the on-board controller can judge whether the pressure difference delta P between the first cavity and the second cavity is not smaller than a preset threshold value, and if the pressure difference delta P is not smaller than the preset threshold value, the on-board controller can send a signal to the display module to enable the display module to give an alarm to prompt that a filter element is blocked; wherein Δ P = | -P1-P2 |.
Further, the preset threshold value is 3.5KPa.
The invention has the beneficial effects that:
1. the carbon canister ash filter is provided with a first pressure sensor and a second pressure sensor, and can respectively measure the real-time air pressure values in a first chamber and a second chamber which are positioned at the inner side and the outer side of a filter element;
2. the carbon canister ash filter has a simple structure and is convenient to disassemble and assemble;
3. after receiving the signals sent by the first pressure sensor and the second pressure sensor, the vehicle-mounted controller of the filter element blockage warning system can calculate the pressure difference delta P, compares the delta P with a preset threshold value, and sends a signal to the display module if the pressure difference delta P is not less than the preset threshold value of 3.5KPa, so that the display module gives an alarm to prompt the blockage of the filter element, thereby timely finding and prompting the carbon tank ash filter blockage to a user, reducing the probability risk of frequent gun jumping or other OBD faults in the refueling process of the user, and achieving the purpose of improving the satisfaction degree of the user.
Drawings
In order to make the object, technical scheme and beneficial effect of the invention more clear, the invention provides the following drawings for explanation:
FIG. 1 is a schematic view of the canister ash filter of the present invention;
FIG. 2 is an exploded view of the canister ash filter of the present invention;
FIG. 3 is a schematic structural diagram of the upper housing of the present invention;
FIG. 4 is a schematic view of the upper end cap, the first pressure sensor, the second pressure sensor and the connector assembly according to the present invention;
FIG. 5 is a schematic view of the connection of the upper end cap and the connector of the present invention;
FIG. 6 is a schematic structural diagram of a first pressure sensor and a second pressure sensor according to the present invention;
FIG. 7 is a schematic structural view of the lower end cap of the present invention;
FIG. 8 is a schematic view of the structure of the lower housing of the present invention;
fig. 9 is a schematic structural diagram of the filter element blockage warning system.
The drawings are numbered as follows:
1-shell component, 11-gas inlet, 12-gas outlet, 13-upper shell, 131-shell hole, 14-lower shell, 141-circular bottom plate, 142-tube interface, 143-connecting ring, 144-gas outlet tube;
2-filter element assembly, 21-first pressure sensor, 22-second pressure sensor, 23-buckle, 24-filter element body, 25-upper end cover, 251-upper cover body, 252-inner support, 253-outer support, 254-connector, 255-clamping hole, 26-lower end cover, 261-end cover hole and 27-wiring harness.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 8, the canister ash filter in the embodiment includes a housing assembly 1 and a filter element assembly 2 disposed inside the housing assembly 1, a first chamber is formed inside the filter element assembly 2, a second chamber is formed between the outside of the filter element assembly 2 and the housing assembly 1, an air inlet 11 for communicating the second chamber with the outside and an air outlet 12 for communicating the first chamber with the outside are disposed on the housing assembly 1, and the filter element assembly 2 includes a first pressure sensor 21 disposed in the first chamber and a second pressure sensor 22 disposed in the second chamber.
As shown in fig. 9, in this embodiment, a filter element blockage warning system is further provided, which includes an onboard controller and a display module, and further includes the carbon canister ash filter, where the first pressure sensor 21 can monitor a real-time air pressure value P1 in the first cavity and send the real-time air pressure value P1 to the onboard controller, the second pressure sensor 22 can monitor a real-time air pressure value P2 in the second cavity and send the real-time air pressure value P2 to the onboard controller, the onboard controller can determine whether a pressure difference Δ P between the first cavity and the second cavity is not less than a preset threshold, and if the pressure difference Δ P is not less than the preset threshold, the onboard controller can send a signal to the display module, so that the display module gives an alarm to prompt that the filter element is blocked; where Δ P = | P1-P2 |. In this embodiment, the preset threshold is 3.5KPa.
The first pressure sensor 21 can monitor a real-time air pressure value P1 in the first chamber and send the real-time air pressure value P1 to the vehicle-mounted controller, the second pressure sensor 22 can monitor a real-time air pressure value P2 in the second chamber and send the real-time air pressure value P2 to the vehicle-mounted controller, after the vehicle-mounted controller receives signals sent by the first pressure sensor 21 and the second pressure sensor 22, the magnitude of pressure difference delta P is calculated according to delta P = | P1-P2 |, the delta P is compared with a preset threshold, and if the pressure difference delta P is not smaller than the preset threshold of 3.5KPa, the vehicle-mounted controller sends a signal to the display module to enable the display module to give an alarm to prompt that the filter element is blocked, wherein the display module can be an automobile combination instrument, the display module can give an alarm to prompt that a filter element blocking fault signal lamp on the automobile combination instrument can be turned on, so that the frequent gun skipping or other OBD faults in the customer refueling process can be discovered and the ash filtering blockage can be prompted to a user in time, and the customer satisfaction degree can be improved.
In this embodiment, the filter element assembly 2 further includes a filter element body 24, an upper end cover 25 and a lower end cover 26, the filter element body 24 is cylindrical, the upper end cover 25 and the lower end cover 26 respectively seal the upper end and the lower end of the filter element body 24, so that a first chamber is formed inside the filter element body 24, and an end cover hole 261 for communicating the first chamber with the air outlet 12 is formed in the middle of the lower end cover 26; preferably, the cartridge body 24 is cylindrical. The gas enters the second chamber through the gas inlet 11 from the outside of the canister ash filter, then enters the first chamber after being filtered by the filter element body 24, then flows to the gas outlet 12 through the end cover hole 261, and finally flows to the canister stop valve of the engine system from the gas outlet 12.
In this embodiment, the upper end cap 25 includes an upper cap body 251, an inner bracket 252, an outer bracket 253, and a connector 254; the upper cover body 251 can close the cartridge body 24; the inner support 252 extends into the first chamber, the upper part of the inner support 252 is connected with the middle part of the upper cover body 251, and the lower part of the inner support 252 is connected with the first pressure sensor 21; the outer support 253 is positioned between the filter element body 24 and the shell assembly 1, the upper part of the outer support 253 is connected with the edge of the upper end cover 25 body, and the lower part of the outer support 253 is connected with the second pressure sensor 22; the first pressure sensor 21 and the second pressure sensor 22 are connected to the connector 254 by the harness 27, respectively, and the connector 254 protrudes from the housing assembly 1. The extension of the connector 254 from the housing assembly 1 can facilitate the connection of the connector 254 to the vehicle body controller during assembly, thereby enabling the first and second pressure sensors 21, 22 to send signals to the vehicle controller.
In this embodiment, the housing assembly 1 includes an upper housing 13 and a lower housing 14 connected to the upper housing 13, a cavity for accommodating the filter element assembly 2 is formed between the upper housing 13 and the lower housing 14, and a housing hole 131 for the plug 254 to pass through is opened at the top of the upper housing 13.
In this embodiment, the lower case 14 includes a circular bottom plate 141 and a connection ring 143; the connection ring 143 protrudes upward from the circular base plate 141, the lower portion of the upper housing 13 is engaged with the connection ring 143, and the air inlet 11 is provided on the connection ring 143. The number of the air inlets 11 is plural, and may be three, four, five or six, and the plural air inlets 11 are arranged on the connection ring 143 at equal intervals in the circumferential direction.
In this embodiment, the lower shell 14 further includes an air outlet pipe 144, a pipe connector 142 is disposed at a position of the circular bottom plate 141 corresponding to the end cover hole 261, a head end of the air outlet pipe 144 is connected to the pipe connector 142, and a tail end of the air outlet pipe 144 is communicated with the outside to form the air outlet 12. The lower end cover 26 and the circular bottom plate 141 are connected together by gluing, and the gas enters the second chamber from the outside of the canister filter through the gas inlet 11, then enters the first chamber after being filtered by the filter element body 24, then flows into the gas outlet pipe 144 through the end cover hole 261 and the pipe joint 142, and finally flows to the canister stop valve of the engine system from the gas outlet 12 formed at the tail end of the gas outlet pipe 144.
In this embodiment, the inner bracket 252 and the outer bracket 253 are both provided with the clamping holes 255, the first pressure sensor 21 and the second pressure sensor 22 are both provided with the buckles 23 used for being matched with the clamping holes 255, and the first pressure sensor 21 and the second pressure sensor 22 are simple in installation structure and convenient to disassemble and assemble.
In this embodiment, the positions of the clamping holes 255 in the inner bracket 252 and the outer bracket 253 in the vertical direction are the same, the air pressures at different positions are different, and the positions of the clamping holes 255 in the inner bracket 252 and the outer bracket 253 in the vertical direction are the same, so that the measurement accuracy of the pressure difference Δ P can be improved.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a charcoal canister ash filters, is in including casing subassembly (1) and setting the filter element subassembly (2) of the inside of casing subassembly (1), the inside of filter element subassembly (2) forms first cavity, the outside of filter element subassembly (2) with form the second cavity between casing subassembly (1), be provided with on casing subassembly (1) and make second cavity and outside communicating air inlet (11) and messenger first cavity and outside communicating gas outlet (12), its characterized in that: the filter element assembly (2) comprises a first pressure sensor (21) disposed in the first chamber and a second pressure sensor (22) disposed in the second chamber.
2. The canister ash filter of claim 1, wherein: filter element group spare (2) still includes filter core body (24), upper end cover (25) and bottom end cover (26), filter core body (24) are the tube-shape, upper end cover (25) and bottom end cover (26) are right respectively the upper and lower both ends of filter core body (24) seal, so that the inside of filter core body (24) forms first cavity, the middle part of bottom end cover (26) is seted up and is used for making first cavity with communicating end cover hole (261) of gas outlet (12).
3. The canister ash filter of claim 2, wherein: the upper end cover (25) comprises an upper cover body (251), an inner support (252), an outer support (253) and a connector (254); the upper cover body (251) can seal the filter element body (24); the inner support (252) extends into the first chamber, the upper part of the inner support (252) is connected with the middle part of the upper cover body (251), and the lower part of the inner support (252) is connected with the first pressure sensor (21); the outer support (253) is positioned between the filter element body (24) and the shell assembly (1), the upper part of the outer support (253) is connected with the edge of the upper end cover (25) body, and the lower part of the outer support (253) is connected with the second pressure sensor (22); the first pressure sensor (21) and the second pressure sensor (22) are connected to the connector (254) by a harness (27), respectively, and the connector (254) protrudes from the housing assembly (1).
4. The canister ash filter as defined in claim 3, wherein: the housing assembly (1) comprises an upper housing (13) and a lower housing (14) connected with the upper housing (13), a cavity for accommodating the filter element assembly (2) is formed between the upper housing (13) and the lower housing (14), and a housing hole (131) for allowing the connector (254) to pass through is formed in the top of the upper housing (13).
5. The canister ash filter as defined in claim 4, wherein: the lower case (14) includes a circular bottom plate (141) and a connection ring (143); the connecting ring (143) extends upwards out of the circular bottom plate (141), the lower part of the upper shell (13) is clamped with the connecting ring (143), and the air inlet (11) is arranged on the connecting ring (143).
6. The canister ash filter as defined in claim 5, wherein: the lower shell (14) further comprises an air outlet pipe (144), a pipe connector (142) is arranged at the position, corresponding to the end cover hole (261), of the circular bottom plate (141), the head end of the air outlet pipe (144) is connected with the pipe connector (142), and the tail end of the air outlet pipe (144) is communicated with the outside to form the air outlet (12).
7. The canister ash filter as defined in claim 3, wherein: clamping holes (255) are formed in the inner support (252) and the outer support (253), and buckles (23) used for being matched with the clamping holes (255) are arranged on the first pressure sensor (21) and the second pressure sensor (22).
8. The canister ash filter as defined in claim 7, wherein: the positions of the clamping holes (255) on the inner support (252) and the outer support (253) in the vertical direction are the same.
9. The utility model provides a filter core blocks up alarm system, includes on-vehicle controller and display module, its characterized in that: the carbon canister ash filter also comprises the carbon canister ash filter as defined in any one of claims 1-8, wherein the first pressure sensor (21) can monitor a real-time air pressure value P1 in the first chamber and send the real-time air pressure value P1 to the vehicle-mounted controller, the second pressure sensor (22) can monitor a real-time air pressure value P2 in the second chamber and send the real-time air pressure value P2 to the vehicle-mounted controller, the vehicle-mounted controller can judge whether the pressure difference delta P between the first chamber and the second chamber is not less than a preset threshold value, and if the pressure difference delta P is not less than the preset threshold value, the vehicle-mounted controller can send a signal to the display module to enable the display module to alarm to prompt that a filter element is blocked; wherein Δ P = | -P1-P2 |.
10. The filter cartridge blockage alarm system of claim 9, wherein: the preset threshold value is 3.5KPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211175772.XA CN115434832B (en) | 2022-09-26 | 2022-09-26 | Carbon tank ash filter and filter element blockage alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211175772.XA CN115434832B (en) | 2022-09-26 | 2022-09-26 | Carbon tank ash filter and filter element blockage alarm system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115434832A true CN115434832A (en) | 2022-12-06 |
| CN115434832B CN115434832B (en) | 2023-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211175772.XA Active CN115434832B (en) | 2022-09-26 | 2022-09-26 | Carbon tank ash filter and filter element blockage alarm system |
Country Status (1)
| Country | Link |
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| CN (1) | CN115434832B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948154A1 (en) * | 1999-10-07 | 2001-04-12 | Volkswagen Ag | Pump for diagnosing leaks and faults generates excess pressure in a motor vehicle's fuel tank system for a preset diagnosis time while monitoring the march of pressure with a pressure sensor. |
| US20030226790A1 (en) * | 2002-06-07 | 2003-12-11 | Baldwin Filters, Inc. | Housing for environmentally friendly filter cartridge |
| US20080264153A1 (en) * | 2004-04-09 | 2008-10-30 | Ufi Filters S.P.A. | Device for Indicating Fuel Filter Clogging in Internal Combustion Engines, Particularly Diesel Engines |
| CN103894020A (en) * | 2013-08-02 | 2014-07-02 | 马勒技术投资(中国）有限公司 | Dust filter of air vent of carbon tank |
| CN110529306A (en) * | 2019-07-24 | 2019-12-03 | 上海贝诗纳科技有限公司 | A kind of real-time monitoring device and its monitoring method of automobile filter service life |
| CN111287868A (en) * | 2018-12-06 | 2020-06-16 | 福特全球技术公司 | System and method for fuel vapor storage canister operating capacity diagnostics |
| CN112437834A (en) * | 2018-07-17 | 2021-03-02 | 爱三工业株式会社 | Evaporated fuel treatment device |
| CN215057800U (en) * | 2021-01-26 | 2021-12-07 | 宁波中贺汽配有限公司 | Ash filter device of oil tank carbon tank |
-
2022
- 2022-09-26 CN CN202211175772.XA patent/CN115434832B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948154A1 (en) * | 1999-10-07 | 2001-04-12 | Volkswagen Ag | Pump for diagnosing leaks and faults generates excess pressure in a motor vehicle's fuel tank system for a preset diagnosis time while monitoring the march of pressure with a pressure sensor. |
| US20030226790A1 (en) * | 2002-06-07 | 2003-12-11 | Baldwin Filters, Inc. | Housing for environmentally friendly filter cartridge |
| US20080264153A1 (en) * | 2004-04-09 | 2008-10-30 | Ufi Filters S.P.A. | Device for Indicating Fuel Filter Clogging in Internal Combustion Engines, Particularly Diesel Engines |
| CN103894020A (en) * | 2013-08-02 | 2014-07-02 | 马勒技术投资(中国）有限公司 | Dust filter of air vent of carbon tank |
| CN112437834A (en) * | 2018-07-17 | 2021-03-02 | 爱三工业株式会社 | Evaporated fuel treatment device |
| CN111287868A (en) * | 2018-12-06 | 2020-06-16 | 福特全球技术公司 | System and method for fuel vapor storage canister operating capacity diagnostics |
| CN110529306A (en) * | 2019-07-24 | 2019-12-03 | 上海贝诗纳科技有限公司 | A kind of real-time monitoring device and its monitoring method of automobile filter service life |
| CN215057800U (en) * | 2021-01-26 | 2021-12-07 | 宁波中贺汽配有限公司 | Ash filter device of oil tank carbon tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115434832B (en) | 2023-08-15 |
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