CN110608117A - Water separation group - Google Patents
Water separation group Download PDFInfo
- Publication number
- CN110608117A CN110608117A CN201810622790.5A CN201810622790A CN110608117A CN 110608117 A CN110608117 A CN 110608117A CN 201810622790 A CN201810622790 A CN 201810622790A CN 110608117 A CN110608117 A CN 110608117A
- Authority
- CN
- China
- Prior art keywords
- separation
- group
- fuel
- water
- water separation
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
Abstract
A water separation group (1) comprising: -a body (10) extending along a main axis (X-X), defining a separation chamber (100) therein, and comprising an outlet wall (12), said outlet wall (12) comprising at least one outlet mouth (120), clean fuel flowing out of said at least one outlet mouth (120); -a separator device (2) housed in said separation chamber (100), in fluid connection with said outlet mouth (120), further comprising a support structure (20) and a separation surface (21), said support structure (20) comprising at least one passage opening (200), said separation surface (21) being arranged transversally with respect to said passage opening (200); -a barrier device (3) positioned below the separator device (2), dividing the separation chamber (100) into a separation region (100') and a collection region (100 "); the separator device (2) is housed in a separation zone (100 '), and water separated from the fuel is collected in a collection zone (100').
Description
Technical Field
The present invention relates to a water separation group for a fuel filtration and separation assembly of a fuel circulation system of a vehicle, and to a fuel filtration and separation assembly comprising said water separation group.
The invention belongs to the field of automobiles. In particular, the present invention relates to a fuel (preferably diesel-type) filtering and separating assembly, which is located upstream of a combustion chamber of an internal combustion engine. In other words, fuel output from such a filtering and separating assembly flows into the fuel circulation system towards the engine block.
In particular, these components have a dual function: their purpose is to filter the fuel to remove any suspended particulate matter and/or impurities therein that may damage components downstream of the fuel circulation system (e.g., the engine block or the high pressure pump); they also have the purpose of: separating any water particles in the fuel that may damage components downstream of the fuel circulation system (e.g., injectors) and/or may cause non-optimal combustion.
Background
A variety of fuel filtration and separation assemblies having the described dual functionality are known in the art.
In particular, fuel filtering and separating assemblies are known which have a vertical extension, i.e. are suitable for being mounted in a vehicle, and operate in a substantially vertical position. Such an assembly has, in its upper part, a filtering and/or separation group adapted to perform a corresponding action on the fuel, and, in its lower part, a water collection chamber in which the water separated from the fuel accumulates by gravity.
An example of a fuel filtration and separation assembly of this type is shown in document EP 0858825.
However, it is not always possible to have the fuel filtering and separating assembly in a vertical position in a vehicle.
Therefore, embodiments of fuel filtering and separating assemblies are also known, which have a horizontal extension, i.e. are adapted to be mounted in a vehicle and are mounted substantially horizontally.
However, such fuel filtration and separation assemblies having a horizontal extension have significant technical drawbacks.
In fact, these known assemblies perform the separation of water and fuel very inefficiently, but most importantly they present very difficult problems in collecting the water separated from the fuel.
Thus, the known water filtering and separating assemblies have a particularly complex and cumbersome geometry. In fact, in the known embodiments of fuel filtering and separating assemblies, the water collection chamber is arranged in a lower position with respect to the filtering means. In other words, when water filtering and separating assemblies are known which are arranged extending in a horizontal direction, they have an at least partly vertical extension for providing a water collecting chamber at the bottom.
The technical solution with a horizontally extending fuel filtration and separation assembly according to such description is shown in documents EP2399019 and DE 102006005108.
Disclosure of Invention
The need is therefore strongly felt to provide a water separation group for fuel separation and filtration assemblies with horizontal extension, in which the above mentioned problems are solved. Similarly, there is a strong felt need to provide a fuel separation and filtration assembly comprising such a water separation set.
It is an object of the present invention to provide a water separation bank for a fuel filtration and separation assembly of a fuel circulation system of a vehicle, wherein the separation assembly extends along a longitudinal axis L-L and is horizontally disposed in the vehicle, comprising a filtration bank for filtering suspended solids and contaminants from dirty fuel, wherein the water separation bank is disposed in series with and fluidly connected to the filtration bank along the longitudinal axis L-L for receiving filtered fuel, the water separation bank comprising:
-a body associable with the filtering group and extending along a main axis X-X, wherein, in a configuration in which the water separation group is associated with the filtering group, the main axis X-X and the longitudinal axis L-L are substantially parallel and/or coincident, wherein the body defines a separation chamber therein and comprises an outlet wall at an axial end, the outlet wall comprising at least one outlet mouth from which the cleaned fuel flows;
-a separator device accommodated in the separation chamber, in fluid connection with the outlet mouth, extending in a longitudinal direction from the outlet wall, and comprising a support structure comprising at least one passage opening through which fuel flows, wherein the separator device comprises a separation surface arranged transversely with respect to the passage opening;
-a barrier device positioned below the separator device, dividing the separation chamber into a separation region and a collection region; the separator means is housed in the separation region and water separated from the fuel is collected in the collection region, wherein the baffle means is adapted to prevent water from returning to the separation region.
The water separation group performs the separation operation in an efficient and effective manner, but above all has a simple and compact geometry, in which the vertical dimensions are limited as much as possible. In particular, these components have a dual function: their purpose is to filter the fuel to remove any suspended particulate matter and/or impurities therein that may damage components downstream of the fuel circulation system (e.g., the engine block or the high pressure pump); they also have the purpose of: separating any water particles in the fuel that may damage components downstream of the fuel circulation system (e.g., injectors) and/or may cause non-optimal combustion.
In one of the embodiments, the blocking means comprise a blocking surface extending in the longitudinal direction at an angle to the direction of the main axis X-X, at least a portion of the blocking surface being inclined so as to allow water separated from the fuel to flow towards the outlet wall.
In one embodiment, the barrier means further comprises at least one drainage channel extending in a longitudinal direction to form an opposite angle forming an angle with respect to the barrier surface such that water separated by the separating means flows from the separation region to the collection region in a dual sliding direction comprising a sliding direction of water on the barrier surface towards the outlet wall and a sliding direction of water on the drainage channel away from the outlet wall.
In one embodiment, the blocking means comprises two drainage channels arranged at the sides of the blocking surface.
In one embodiment, the barrier means comprises at least one passage opening adapted to put the separation zone and the collection zone in fluid communication.
In one embodiment, the channel openings are formed in the sides of the blocking surface.
In one embodiment, the barrier means comprises a fuel inlet passage adapted to deliver filtered fuel from the filter bank to the separation means.
In one embodiment, the fuel inlet passage extends longitudinally at an angle to the main axis X-X different from the angle at which the barrier surface is inclined.
In one embodiment, the fuel inlet passage is inclined at an angle relative to the primary axis X-X that is opposite to the angle at which the blocking surface is inclined.
In one embodiment, the support structure comprises a plurality of passage openings, on which a plurality of separation surfaces are present, wherein the separation surfaces are arranged obliquely with respect to the direction of the main axis X-X, such that the separation surfaces converge progressively away from the outlet wall.
In one embodiment, the separation surface comprises an upper separation surface and a lower separation surface, the lower separation surface facing the blocking surface.
In one embodiment, said blocking surface is inclined to form an angle with the direction of the main axis X-X, which is substantially equal to said angle of inclination of the separating surface, so that said blocking surface is parallel to said separating surface adjacent to it, and when said separating surface comprises an upper separating surface and a lower separating surface, said blocking surface is parallel to said lower separating surface.
In one of the embodiments, the separation surface is arranged orthogonally to the direction of the main axis X-X.
In one of the embodiments, the support structure is covered with a hydrophobic filter to form a respective separation surface at each channel opening.
In one embodiment, the body comprises an inlet wall comprising at least one inlet mouth adapted to be in fluid connection with the filtration group so as to allow the filtered fuel to enter the separation chamber.
In one embodiment, the body comprises an insertion bush which can be fitted over the filter group to perform mutual insertion between the water separation group and the filter group in the longitudinal direction.
It is another object of the present invention to provide a fuel filter and separator assembly of a fuel circulation system of a vehicle, extending along a longitudinal axis L-L and disposed horizontally in the vehicle, the fuel filter and separator assembly comprising:
i) a fuel filter bank for filtering suspended solid particles and impurities from the dirty fuel;
ii) a water separation group as described above for separating water from the filtered fuel;
wherein the water separation bank is fluidly connectable to a filtration bank positioned in series along the longitudinal axis L-L.
In one of the embodiments, the fuel filtration group and the water separation group have a mutual engagement of the "plug-and-socket" type, which respectively have an insertion portion extending from the corresponding group of the fuel filtration group or the water separation group and a corresponding receiving portion adapted to receive the insertion portion.
In one embodiment, the fuel filter assembly is a tube type having a substantially axially symmetric extension with respect to the longitudinal axis L-L.
In one embodiment, the fuel filtration and separation assembly further comprises a fuel heating stack engageable with the fuel filtration stack at an end thereof opposite the water separation stack by longitudinal interengagement.
Drawings
Further features and advantages of the invention will be unambiguously derived from the following illustrative description of preferred embodiments, given purely by way of non-limiting example, with reference to the accompanying drawings, in which:
figure 1 shows a top view of a fuel filtering and separating assembly object according to a preferred embodiment of the present invention;
figure 2 shows a side longitudinal section of the fuel filtering and separating assembly shown in figure 1;
FIG. 3 shows a perspective cross-sectional view of a separate component of the fuel filtration and separation assembly shown in FIG. 1;
figure 4 shows a perspective cross-sectional view with a separating member for separating group objects according to a preferred embodiment of the invention, which is included herein in the filtering and separating assembly as shown in figures 1 to 3;
figures 5a and 5b show the separated group of figure 4 in a front view and in a top cross-section, respectively;
fig. 6a, 6b, 6c and 6d show a separating device such as the separation group in fig. 4 in perspective, in top view, in front view and in side view, respectively;
figures 7a ', 7a ", 7b, 7 c', 7 c" and 7d show a separate group of blocking devices such as that shown in figure 4, in two perspective views, in a top view, in a front view, in a rear view and in a side view, respectively.
List of reference numerals:
1, a water separation group; 2 a separator device; 20 a support structure; 200 channel openings; 200' channel sub-openings; 21 a separation surface; 21' an upper separation surface; 21 "lower separation surface; 3, a blocking device; 31 a barrier surface; 32 a drain channel; 320 a channel opening; 36 a fuel inlet passage; 10 a main body; 10' of the cup body; 11 an inlet wall; 110 an inlet mouth; 12 an outlet wall; 120 an outlet mouth; 13 side walls; 15 inserting the bush; 100 a separation chamber; 100' a separation region; 100 "collection area; 180 clearing the hole; 190 water level sensor; 900 fuel filtration and separation assembly; 500 filter groups; 501 an inlet opening; 502 an outlet nozzle; a 550 tubular insertion portion; 590 a housing; an X-X principal axis; L-L longitudinal axis.
Detailed Description
In the drawings, reference numeral 1 denotes a water separation group according to a preferred embodiment of the invention.
Such a water separation group 1 is particularly intended for a fuel filtration and separation assembly 900 of a fuel circulation system of a vehicle. The fuel filtration and separation assembly 900 comprising said water separation group 1 is furthermore also an object of the present invention.
The water separation group 1 and the fuel filtering and separating assembly 900 all fall into the text described above, operating in a horizontal configuration, i.e. housed in the vehicle in a substantially horizontal position; where "horizontal position" means that these components operate in the vehicle, fluidly connected to the fuel circulation system in a position substantially parallel to the ground along which the vehicle is moving. Other references to the regions, portions and/or components of the fuel filtration and separation assembly and water separator set being "lower", "upper", "side" are to be considered in terms of their said horizontal positioning in the vehicle.
Specifically, fuel filtration and separation assembly 900 extends along a longitudinal axis L-L, which is positioned substantially horizontally with respect to the assembly mounted in the vehicle.
According to the invention, the fuel filtering and separating assembly 900 performs a double action on the fuel circulating in the circuit: indeed, as described more broadly below and also as shown in the accompanying figures, the filtering and separating assembly 900 is adapted to perform a filtering action on dirty fuel to filter its suspended particles and impurities, and is also adapted to perform a separating action on the filtered fuel to separate it from the water.
Thus, in addition to the water separation group 1, which is specifically adapted to perform a separation operation on fuel and water, the fuel filtration and separation assembly 900 also comprises a filtration group 500, which is variously specifically intended to filter suspended solid particles and impurities in dirty fuel.
That is, firstly, the dirty fuel is intercepted by the filtering group 500, filtering its impurities, and secondly, the filtered fuel is intercepted by the water separating group 1, separating it from the water, so that the clean fuel flows downstream of the fuel filtering and separating assembly 900. According to a preferred embodiment, filter group 500 is also adapted to perform a coalescence action on water emulsified in the fuel in the form of small water droplets, typically less than 100 microns in diameter (typically less than 50 microns in diameter) in such a way that: they aggregate to form water particles of a size greater than 200 microns (preferably even up to 2mm) or in any case greater than the water droplets input to the filtration group 500, so that the water separation group is able to operate on the aggregated water particles.
Specifically, water separation stack 1 is disposed in series with and fluidly connected to filter stack 500 along longitudinal axis L-L to receive filtered fuel. In other words, fuel filter and separator assembly 900 precedes filter stack 500 along longitudinal axis L-L and then water separation stack 1. In still other words, the water separation group 1 may be combined with the filter group 500 in the longitudinal direction.
According to a preferred embodiment, the fuel filter group 500 and the water separation group 1 have a mutual engagement of the "plug-socket" type. In particular, the fuel filter group 500 and the water separation group 1 comprise respective insertion portions extending from the corresponding group of said fuel filter group 500 or said water separation group 1 and respective receiving portions adapted to receive said insertion portions.
That is, the fuel filtration and separation assembly 900 is longitudinally combinable in a modular fashion: each group (or module) included therein performs a specific operation on the fuel, such as a filtering operation or a separating operation.
Preferably, the assembly 1 also comprises a fuel heating group (not shown in the figures) which can be coupled (preferably by longitudinal mutual engagement) with the fuel filtering group 500 at the opposite end thereof with respect to the end at which the water separating group 1 is coupled. Preferably, such a group (module) is adapted to perform a fuel heating operation so as to prevent paraffin crystals or water from clogging the filter group 500.
The invention is not limited to the shape and size of the filter stack 500, but portions of the water separation stack 1 may supplement them to promote mutual axial engagement.
However, in a preferred embodiment, fuel filter stack 500 is a tube type. Preferably, fuel filter stack 500 includes a housing 590 having a generally axially symmetric extension with respect to longitudinal axis L-L.
According to a preferred embodiment, fuel filter stack 500 includes at least one tubular insert 550 housed therein, extending along longitudinal axis L-L, and traversed by fuel in a radial manner (preferably from the outside inwards).
According to a preferred embodiment, the fuel filter stack 500 has one or more inlet openings 501 and an outlet nozzle 502, dirty fuel entering through the one or more inlet openings 501 and filtered fuel exiting through the outlet nozzle 502. The outlet nozzle 502 is positioned on the longitudinal axis L-L. The outlet nozzle 502 extends along a longitudinal axis L-L and projects axially.
According to a preferred embodiment of the embodiment as shown in the figures, the water separation group 1 is adapted to engage in fluid connection with said outlet nozzle 502, preferably so as to house it internally. In other words, the outlet nozzle 502 extends inside the water separation group 1 in a "plug-in manner" in the mounted configuration.
According to the invention, the water separation group 1 comprises a body 10 extending along a main axis X-X.
In the configuration in which the water separation group 1 is installed in a vehicle, the main axis X-X and the longitudinal axis L-L are substantially parallel and/or coincide. That is, the body 10 in turn has a substantially longitudinal extension.
The body 10 defines therein a separation chamber 100, and the water-fuel separation operation is performed in the separation chamber 100.
According to a preferred embodiment, the body 10 therefore has a substantially box shape.
Preferably, the body 10 comprises a cup 10', which cup 10' is provided with an inlet wall 11 substantially orthogonal to the main axis X-X and with a side wall 13 extending axially substantially parallel to the main axis.
According to a preferred embodiment, said inlet wall 11 is engageable with a filtering group 500. Preferably, the inlet wall 11 actually includes an inlet mouth 110 into which the filtered fuel flows. Preferably, the outlet nozzle 502 of the filter group 500 is adapted to be received in said inlet mouth 110.
Furthermore, according to a preferred embodiment, the main body 10 comprises an insertion bush 15 that can be fitted over the filter group 500 to perform the mutual insertion in the longitudinal direction between the water separation group 1 and the filter group 500.
Preferably, said insert bush 15 extends in height from the inlet wall 11.
According to an embodiment in which the filter group 500 is tubular, the insertion bush 15 has a substantially annular shape to engage the housing wall of the filter group 500.
To close the cup 10', the body 10 comprises an outlet wall 12 at the axial end. Such outlet wall 12 comprises at least one outlet mouth 120; as a result of the separation operation, clean fuel flows out of the at least one outlet nozzle 120. In other words, the outlet wall 12 is formed on a component having a plug function.
According to a preferred embodiment, the water separation group 1 and the fuel filter group 500 are mutually engageable in a distinct angular position. In other words, as shown in the figures, both the upper side and the lower side can be formed in the water separation group 1 and in the fuel filtration group 500 and in the fuel filtration and separation assembly 900 with respect to a vertical direction, which is transverse to the respective extension axis, i.e. the longitudinal axis L-L or the main axis X-X.
Furthermore, the water separation group 1 according to the present invention comprises separator means 2, housed in the separation chamber 100, fluidly connected to the outlet mouth 120, suitable for performing the separation operation.
The separator device 2 extends in the longitudinal direction from the outlet wall 12. Preferably, in practice, the separator device 2 may be integrally mounted to said outlet wall 12. Preferably, the separator device 2 is formed integrally with the outlet wall 12.
According to the invention, the separator device 2 comprises a supporting structure 20, which can be crossed by the fuel to form a dirt side and a cleaning side (fluidly connected to the outlet mouth 120); filtered fuel from the filter stack flows into the dirty side and clean fuel separated from the water flows out of the clean side.
The support structure 20 is preferably hollow in nature.
The support structure 20 includes at least one passage opening 200, and fuel flows through the at least one passage opening 200. Preferably, the separator device 2 comprises a separation surface 21 on said opening, which separation surface 21 constitutes a hydrophobic filter portion, transversely to said passage opening 200.
According to a preferred embodiment, such a support structure 20 may be fixed or fixed to the outlet wall 12 in order to fluidly connect the inner side (cleaning) to the outlet mouth 120.
Preferably, as also shown in the figures, on said supporting structure 20 according to a preferred embodiment, each passage opening 200 is divided into a plurality of passage sub-openings 200' aligned planar with each other. Preferably, therefore, the separating surface 21 extends planarly over a plurality of auxiliary openings.
Furthermore according to a preferred embodiment, the separator device 2 has a main extension in the longitudinal direction with respect to the vertical direction.
According to a preferred embodiment, such a separation surface 21 is arranged obliquely with respect to the direction of the main axis X-X so as to converge progressively away from the outlet wall 12. Preferably, the support structure 20 has a shape such that the separating surfaces 21 arranged thereon have such a convergent shape.
According to a preferred embodiment, the separator device 2 comprises an upper separation surface 21' and a lower separation surface 21 ". In other words, according to a preferred embodiment, two separate surfaces extending longitudinally are substantially formed.
Preferably, the support structure 20 has respective upper and lower passage openings 200 (each passage opening having a plurality of passage sub-openings 200' as described and illustrated by way of example in the figures).
According to another preferred embodiment, the separator device 2 comprises a separating surface 21 oriented orthogonally with respect to the longitudinal axis L-L.
Preferably, the separation surface is vertically oriented. According to a preferred embodiment, said separation surface 21 is provided on the bottom wall of the support structure 20, oriented transversely to the longitudinal axis L-L and axially spaced from the outlet wall 12.
According to a preferred embodiment, the separation surface 21 comprises a hydrophobic filter portion adapted to promote the separation of water when traversed by the fuel.
Preferably, the hydrophobic filter portion is made in the form of: synthetic fiber non-woven fabrics (e.g. nylon (PA), polyethylene terephthalate fiber (PET), polybutylene terephthalate fiber (PBT), dacron, viscose) or woven fabrics (nylon (PA), polyethylene terephthalate fiber (PET), polybutylene terephthalate fiber (PBT)), for example treated with silicon or Polytetrafluoroethylene (PTFE) or plasma, in order to have a static water contact angle greater than 90 °, resulting in non-wettability with water, and thus suitable for performing a "barrier" effect on water, but permeable to fuel.
According to a preferred embodiment, the separator device comprises a single filtering portion fixed to the supporting structure: a respective separation surface 21 is formed at each plane and each separation surface arranged thereon.
In light of the foregoing, the separator device 2 is preferably tapered longitudinally away from the outlet wall 12. In vertical longitudinal section, the separating apparatus 2 (and in particular the supporting structure 20) has a substantially triangular or trapezoidal or frustoconical shape, with an upper separating surface 21' and a lower separating surface 21 "on two opposite longitudinal sides.
According to the invention, the water separation group 1 further comprises blocking means 3, in turn housed in the separation chamber.
In particular, the barrier means 3 is positioned below the separator means 2, thereby dividing the separation chamber 100 into a separation region 100' and a collection region 100 "; the separation zone 100' accommodates a separator device 2, and the collection zone 100 "collects water separated from the fuel.
Thus, the barrier means 3 is adapted to prevent water from returning into the separation zone 100'.
In particular, the baffle means 3 comprise a drainage area 35, the drainage area 35 being a corresponding planar partial area on the side of the passage opening 320, arranged close to the outlet wall and positioned below the outlet mouth 120, so as to promote drainage of separated water towards the collection area 100 ". Furthermore, such a barrier 3 has openings and/or sliding surfaces arranged to ensure that separated water drains towards the collection area, while minimizing the accumulation of water close to the outlet mouth.
According to a preferred embodiment, the blocking means 3 comprises a blocking surface 31, which blocking surface 31 extends in the longitudinal direction from the outlet wall 12. Preferably, in practice, the blocking means 3 may be integrally mounted to said outlet wall 12. Preferably, the blocking means 3 are formed integrally with the outlet wall 12. According to a preferred embodiment, the barrier means 3 comprises a barrier surface 31 extending from the inlet wall 11, integrally mounted to said inlet wall 11. Preferably, the blocking means 3 are formed integrally with the inlet wall 11.
According to the invention, said blocking surface 31 forms an angle with the direction of the main axis X-X, said angle making at least a portion of said blocking surface 31 inclined so as to allow the water separated from the fuel to flow towards said outlet wall 12.
In a preferred embodiment, the blocking surface 31 extends in a substantially planar manner.
According to a preferred embodiment, the inclined portion of said blocking surface 31 is inclined so as to form an angle with the main axis X-X, said angle being substantially equal to the angle of inclination according to which the separation surface 21 extends. In other words, the blocking surface 31 is substantially parallel to the separation surface 21, preferably the lower separation surface 21 ", adjacent thereto.
The blocking surface 31 is shaped so as to define the water collection area 100 "in a form, for example, having a greater height in the longitudinal direction away from the outlet wall 12 (i.e., close to the inlet wall 11).
According to a preferred embodiment, the blocking means 3 comprise at least one drainage channel 32 extending in the longitudinal direction forming an opposite angle with respect to the angle formed by the blocking surface 31.
Preferably, the water separated by the separator device 2 flows from the separation zone 100' to the collection zone 100 "in a double sliding direction. The dual sliding directions include a sliding direction in which water on the blocking surface 31 flows toward the outlet wall 12 and a sliding direction in which water on the drainage channel 32 flows away from the outlet wall 12. The water separated by gravity by the separator device 2 tends to flow initially towards the outlet wall 12, over the baffle surface 31, then towards the inlet wall 11, into the drainage channel 32 and then into the collection chamber 100 ".
In a preferred embodiment, the blocking means 3 comprise two drainage channels 32 arranged at the sides of the blocking surface 31.
Preferably, a connection is included between the blocking surface 31 and the drainage channel 32, so that the blocking surface 31 and the drainage channel 32 are in fluid connection, adapted to promote the above-mentioned flow of water.
According to a preferred embodiment, the blocking means 3 comprise at least one passage opening 320 adapted to put the separation zone 100' in fluid communication with the collection zone 100 ".
According to a preferred embodiment, such passage openings 320 are provided so as to allow draining of the water obstructed by the separator device 2 towards the collection area 100 ". Preferably, such passage openings 320 are sized and positioned on said barrier means 3 so as to minimize the return of water towards the separation zone 100'. Preferably, such channel openings are provided at the sides of the blocking surface 31.
According to a preferred embodiment, the barrier means 3 comprises a fuel inlet channel 36 adapted to convey filtered fuel from the filter group 500 to the separator means 2.
For example, the fuel inlet passage 36 extends longitudinally at a different (preferably opposite) angle to the angle at which the blocking surface 31 is inclined.
Preferably, the fuel inlet channel 36 extends substantially frontally to the inlet mouth 110, i.e. preferably frontally to the outlet nozzle 502 of the filter group 500. In the preferred embodiment, an outlet nozzle 502 is received in the fuel inlet passage 36.
According to the foregoing and as shown by way of example in the accompanying drawings, the water separation group 1 has a substantially elongated extension.
Preferably, the water separation group 1 has a height which is substantially equal to the height of the filtration group 500.
According to a preferred embodiment, the water separation group 1 preferably extends in the longitudinal direction. In other words, in a preferred embodiment, the water separation group 1 preferably extends in a longitudinal direction, which is substantially parallel to the horizontal ground on which the vehicle moves. In other words, the water separation group 1 has a horizontal extension, instead of a vertical extension.
According to a preferred embodiment, in its lower part, the water separation group 1 also has a purge hole 180, closed by a suitable plug, adapted to allow a purge operation of the collected water.
Furthermore, also according to a preferred embodiment, the water separation group 1 further comprises a water level sensor 190 adapted to detect the amount of water collected in the separation chamber 100 (and in particular in the collection area 100 ").
Innovatively, the water separation bank and the filtration and separation assembly including the water separation bank fully satisfy the objects of the present invention and overcome the general deficiencies of the prior art.
Advantageously, in practice, the water separation group performs an effective water-fuel separation operation, while being particularly suitable for operating and positioning in the vehicle in a horizontal position.
Advantageously, the water separation group is adapted to operate efficiently both on the fuel circulating in the pressure thrust and on the fuel in the suction cycle.
Advantageously, the separating device has a separating surface which has a main longitudinal extension and is adapted to handle high fuel flow rates. In other words, advantageously, the separating device is adapted to have a large treatment surface.
Advantageously, the separator device is adapted to perform fuel-water separation operations by minimizing the pressure drop in the fuel supply line due to the large filtering surface provided by the separator device having a conical, trapezoidal or generally conical shape.
Furthermore, advantageously, the separation group has respective means having a shape adapted to promote the accumulation of water in the collection area.
Advantageously, the inclined wall of the separating apparatus is adapted to promote rapid inclination thereof in addition to water collection.
Advantageously, the blocking means are configured to facilitate tilting of the water by double sliding. At the same time, the blocking device is configured to prevent the collected water from returning to the separating device.
Advantageously, the water collected in the collection area is prevented from returning into the separation area even when the vehicle is facing an uphill or downhill slope and/or when the vehicle is suddenly braked.
Advantageously, the blocking means are adapted to divide the separation chamber, optimized according to the manufacturer's needs, so as to have the largest possible size of the water accumulation area.
Advantageously, the blocking means are positioned close to the separating means, which define a collecting area extending in height progressively away from the outlet wall.
Advantageously, the barrier is configured to increase the extent of the collection chamber while minimizing the risk of: when the amount of water collected in the same collection area approaches or exceeds a threshold level defined by the water level sensor, any water droplets from the collection area reach the separation area.
Advantageously, the water separation group does not require the water collection chamber to have a vertical extension or to extend in a lower position with respect to the filtering group.
Advantageously, the separator device can be manufactured with simple operations, for example by moulding, for example in such a way that the support structure and the hydrophobic filter part are co-moulded.
Advantageously, the blocking means can be obtained by a simple moulding operation, which is integral with the inlet wall or with the outlet wall or generally with the side wall of the body of the water separation group.
Advantageously, the blocking means comprise an inclined blocking surface which allows to facilitate the machining of the workpiece by moulding and, if the blocking means are integral with these parts, the extraction of the body or of the outlet wall.
Advantageously, the water separation group is optimized to perform efficient separation, collection and water collection operations.
Advantageously, the water separation group is a separation module, which can be installed on the filtration group if required. Advantageously, the water separation group and the filter group are arranged in series with respect to one another in the vehicle fuel circulation circuit.
Advantageously, the water separation group can be combined with a horizontal filtration group, so that such functions relating to fuel-water separation are added to the filtration group, which would otherwise be unsuitable for performing such operations. Advantageously, the water separation set may be combined with a horizontal filtration set available on the market.
It is clear that in the water separation group or for the skilled person of the filtering and separating assembly, all of which fall within the scope of protection defined by the appended claims, in order to satisfy the contingent requirements.
Claims (20)
1. A water separation group (1) for a fuel filtration and separation assembly (900) of a fuel circulation system of a vehicle, wherein the separation assembly (900) extends along a longitudinal axis (L-L) and is arranged horizontally in the vehicle, comprising a filtration group (500), the filtration group (500) being intended to filter suspended solids and impurities in dirty fuel, wherein the water separation group (1) is arranged in series with the filtration group (500) along the longitudinal axis (L-L) and is fluidly connected to receive filtered fuel, characterized in that the water separation group (1) comprises:
-a body (10) associable with a filtration group (500) and extending along a main axis (X-X), wherein, in a configuration in which the water separation group (1) is associated with a filtration group (500), the main axis (X-X) and the longitudinal axis (L-L) are substantially parallel and/or coincident, wherein the body (10) defines a separation chamber (100) therein and comprises an outlet wall (12) at an axial end, the outlet wall (12) comprising at least one outlet mouth (120) from which clean fuel flows (120);
-a separator device (2) housed in the separation chamber (100), in fluid connection with the outlet mouth (120), extending in a longitudinal direction starting from the outlet wall (12), and comprising a support structure (20), the support structure (20) comprising at least one passage opening (200) through which fuel flows (200), wherein the separator device (2) comprises a separation surface (21), the separation surface (21) being arranged transversely with respect to the passage opening (200);
-a barrier device (3) positioned below the separator device (2), dividing the separation chamber (100) into a separation region (100') and a collection region (100 "); said separator means (2) being housed in said separation zone (100 ') and water separated from the fuel being collected in said collection zone (100 "), wherein said baffle means (3) are adapted to prevent the return of water into the separation zone (100').
2. Water separation group (1) according to claim 1, wherein the blocking means (3) comprise a blocking surface (31), the blocking surface (31) extending in a longitudinal direction forming an angle with the direction of the main axis (X-X), at least a part of the blocking surface (31) being inclined so as to allow water separated from the fuel to flow towards the outlet wall (12).
3. Water separation group (1) according to claim 2, wherein the blocking means (3) further comprises at least one drainage channel (32), the at least one drainage channel (32) extending in a longitudinal direction to form an opposite angle forming an angle with respect to the blocking surface (31) such that water separated by the separation means (2) flows from the separation region (100') to the collection region (100 ") in a double sliding direction comprising a sliding direction of water on the blocking surface (31) towards the outlet wall (12) and a sliding direction of water on the drainage channel (32) away from the outlet wall (12).
4. Water separation group (1) according to claim 3, characterized in that the blocking means (3) comprise two drainage channels (32) arranged at the sides of the blocking surface (31).
5. Water separation group (1) according to any one of claims 2 to 4, characterized in that said blocking means (3) comprise at least one passage opening (320) suitable for putting in fluid communication the separation zone (100') and the collection zone (100 ").
6. Water separation group (1) according to claim 5, characterized in that the channel openings (320) are formed at the sides of the blocking surface (31).
7. Water separation group (1) according to any of the claims 2 to 4, characterized in that the shut-off means (3) comprise a fuel inlet channel (36) adapted to convey filtered fuel from the filtration group (500) to the separation means (2).
8. Water separation group (1) according to claim 7, wherein the fuel inlet channel (36) extends longitudinally at an angle different from the angle at which the blocking surface (31) is inclined with respect to the main axis (X-X).
9. Water separation group (1) according to claim 8, characterized in that the angle of the fuel inlet channel (36) with respect to the direction of the main axis (X-X) is at an opposite angle to the angle at which the blocking surface (31) is inclined.
10. Water separation group (1) according to claim 2, characterized in that the support structure (20) comprises a plurality of passage openings (200) on which a plurality of separation surfaces (21) are present, wherein the separation surfaces (21) are arranged obliquely with respect to the direction of the main axis (X-X) such that the separation surfaces (21) converge progressively away from the outlet wall (12).
11. The water separation group (1) according to claim 10, wherein the separation surface (21) comprises an upper separation surface (21') and a lower separation surface (21 "), the lower separation surface (21") facing the blocking surface (31).
12. Water separation group (1) according to claim 10 or 11, characterized in that said blocking surface (31) is inclined so as to form an angle with the direction of the main axis (X-X) that is substantially equal to said angle of inclination of the separation surface (21), so that said blocking surface (31) is parallel to said separation surface (21) adjacent to it, said blocking surface (31) being parallel to said lower separation surface (21 ") when said separation surface comprises an upper separation surface (21') and a lower separation surface (21").
13. Water separation group (1) according to any one of claims 1 to 4, characterized in that the separation surface (21) is arranged orthogonally to the direction of the main axis (X-X).
14. Water separation group (1) according to any one of claims 1 to 4, characterized in that the support structure (20) is covered with a hydrophobic filter portion to form a respective separation surface (21) at each passage opening (200).
15. Water separation group (1) according to claims 1-4, characterized in that said body (10) comprises an inlet wall (11), said inlet wall (11) comprising at least one inlet mouth (110), said inlet mouth (110) being adapted to be in fluid connection with said filtration group (500) so as to allow said filtered fuel to enter said separation chamber (100).
16. Water separation group (1) according to any one of claims 1 to 4, characterized in that the main body (10) comprises an insertion bush (15), the insertion bush (15) being nestable on the filter group (500) to perform a mutual insertion between the water separation group (1) and the filter group (500) in the longitudinal direction.
17. A fuel filter and separator assembly (900) of a fuel circulation system of a vehicle, extending along a longitudinal axis (L-L) and arranged horizontally in the vehicle, characterized in that the fuel filter and separator assembly (900) comprises:
i) a fuel filter bank (500) for filtering suspended solid particles and contaminants from the dirty fuel;
ii) a water separation group (1) according to any of the previous claims, for separating water from the filtered fuel;
wherein the water separation group (1) is arranged in series with the filtration group (500) along a longitudinal axis (L-L) and is fluidly connected to receive the filtered fuel.
18. The fuel filtration and separation assembly (900) according to claim 17, wherein the fuel filtration group (500) and the water separation group (1) have a mutual engagement of the "plug-and-socket" type, having respectively an insertion portion extending from the corresponding group of the fuel filtration group (500) or the water separation group (1) and a corresponding receiving portion adapted to receive the insertion portion.
19. The fuel filtration and separation assembly (900) according to claim 17 or 18, wherein the fuel filtration assembly (500) is of tubular type, having a substantially axially symmetric extension with respect to the longitudinal axis (L-L).
20. The fuel filtration and separation assembly (900) according to claim 17 or 18, further comprising a fuel heating group associable by longitudinal mutual engagement with the fuel filtration group (500) at its end opposite to the water separation group (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622790.5A CN110608117A (en) | 2018-06-15 | 2018-06-15 | Water separation group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622790.5A CN110608117A (en) | 2018-06-15 | 2018-06-15 | Water separation group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110608117A true CN110608117A (en) | 2019-12-24 |
Family
ID=68888485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810622790.5A Pending CN110608117A (en) | 2018-06-15 | 2018-06-15 | Water separation group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110608117A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006005108A1 (en) * | 2006-02-04 | 2007-08-09 | Mahle International Gmbh | Cylindrical filter device e.g. fuel filter, for internal combustion engine, has housing with inlet for fuel that is cleaned and outlet for cleaned fuel and central axis of cylinder of mounted filter device runs horizontally |
| CN102325986A (en) * | 2009-02-18 | 2012-01-18 | 曼·胡默尔有限公司 | Water separator, in particular for fuel supply systems of internal combustion engines in motor vehicles |
| US20120031824A1 (en) * | 2008-07-26 | 2012-02-09 | Michael Braunheim | Module insert for installation in a liquid filter |
| EP2857669A2 (en) * | 2013-10-04 | 2015-04-08 | Mahle International GmbH | Filter device for a motor vehicle |
| CN105964011A (en) * | 2015-03-11 | 2016-09-28 | 曼·胡默尔有限公司 | Water separator and water separation system with integrated water discharge device |
| CN109989862A (en) * | 2017-12-28 | 2019-07-09 | 上海欧菲滤清器有限公司 | Water separation module and fuel filter separation assembly and its assemble method |
-
2018
- 2018-06-15 CN CN201810622790.5A patent/CN110608117A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006005108A1 (en) * | 2006-02-04 | 2007-08-09 | Mahle International Gmbh | Cylindrical filter device e.g. fuel filter, for internal combustion engine, has housing with inlet for fuel that is cleaned and outlet for cleaned fuel and central axis of cylinder of mounted filter device runs horizontally |
| US20120031824A1 (en) * | 2008-07-26 | 2012-02-09 | Michael Braunheim | Module insert for installation in a liquid filter |
| CN102325986A (en) * | 2009-02-18 | 2012-01-18 | 曼·胡默尔有限公司 | Water separator, in particular for fuel supply systems of internal combustion engines in motor vehicles |
| EP2857669A2 (en) * | 2013-10-04 | 2015-04-08 | Mahle International GmbH | Filter device for a motor vehicle |
| CN105964011A (en) * | 2015-03-11 | 2016-09-28 | 曼·胡默尔有限公司 | Water separator and water separation system with integrated water discharge device |
| CN109989862A (en) * | 2017-12-28 | 2019-07-09 | 上海欧菲滤清器有限公司 | Water separation module and fuel filter separation assembly and its assemble method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9353713B2 (en) | Fuel water separator filter with water drain | |
| CA1190865A (en) | Filter assembly | |
| US20130146524A1 (en) | Fuel Filter of an Internal Combustion Engine and Filter Element of a Fuel Filter | |
| CN102458600B (en) | Filter assembly | |
| US20130146523A1 (en) | Fuel filter of an internal combustion engine and filter element of a fuel filter | |
| US20050274664A1 (en) | Fuel filter with clean water outlet | |
| CN107405546B (en) | Fuel filter including a fuel filter insert having a pre-filter element and a main filter element | |
| US20140284263A1 (en) | Fuel Filter of an Internal Combustion Engine and Filter Element of a Fuel Filter | |
| US5938921A (en) | Water baffle for filter cartridge | |
| US20160082368A1 (en) | Filter element and filter assembly for separating fluids | |
| CN109989862B (en) | Water separation module, fuel oil filtering and separating assembly and assembling method thereof | |
| US11352991B2 (en) | Water separation group | |
| CN107407239B (en) | Fuel filter and fuel filter insert comprising a pre-filter element and a main filter element and comprising a water separation unit | |
| US11565204B2 (en) | Water separation unit | |
| WO2016044457A1 (en) | Filter element and filter assembly for separating fluids | |
| US20160082369A1 (en) | Filter element and filter assembly for separating fluids | |
| CN110608117A (en) | Water separation group | |
| SK18432001A3 (en) | Filter for diesel engine fuel | |
| KR101880260B1 (en) | Sludge separation unit | |
| RU2665522C2 (en) | Device for cleaning the liquid medium | |
| CN217976427U (en) | Oil-water separation filter core and fuel filter | |
| CN111094736A (en) | Return pipe of fuel filter assembly of fuel system | |
| CN216418513U (en) | Filtering component and wet dust removal polishing and grinding machine comprising same | |
| GB2316631A (en) | Separator for use in a fuel system | |
| KR101063580B1 (en) | Free cleaner structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |