US20150321836A1 - Receiver for reductant tank - Google Patents
Receiver for reductant tank Download PDFInfo
- Publication number
- US20150321836A1 US20150321836A1 US14/271,717 US201414271717A US2015321836A1 US 20150321836 A1 US20150321836 A1 US 20150321836A1 US 201414271717 A US201414271717 A US 201414271717A US 2015321836 A1 US2015321836 A1 US 2015321836A1
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- US
- United States
- Prior art keywords
- receiver
- piston
- housing
- fluid
- head portion
- 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.)
- Abandoned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/54—Large containers characterised by means facilitating filling or emptying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings
- F16L37/40—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings with a lift valve being opened automatically when the coupling is applied
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
- F01N2610/1413—Inlet and filling arrangements therefore
-
- 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
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present disclosure relates to a receiver, and more particularly to the receiver associated with a reductant tank.
- a reductant tank associated with an aftertreatment system of an engine may be filled with a reductant using a pressurized fill system.
- a hose and a receiver may be positioned upstream of the reductant tank.
- an external reductant source may be connected to the receiver.
- the hose and the receiver may introduce the reductant into the reductant tank.
- U.S. Pat. No. 8,430,261 discloses a closure cover for tanks under internal pressure, with a cover body which can be fixed in a tank neck by rotation, and with a cover which is provided with a handle and is operatively connected to the cover body, and with a pressure control valve.
- a coupling device is arranged between the cover body and the cover and, during the positive pressure which prevails in the fuel tank during normal operation, releases the rotational connection between the cover body and the cover such that the fuel tank cannot be opened, and in that a pressure control valve is provided which opens when the positive pressure prevailing during normal operation is exceeded.
- a receiver in one aspect of the present disclosure, includes a housing.
- the housing defines a fluid inlet and a fluid outlet.
- the fluid inlet and the fluid outlet are positioned at opposing ends of the housing.
- the receiver also includes a piston.
- the piston includes a head portion positioned at the fluid inlet.
- the piston also includes a rod portion.
- the rod portion extends from the head portion towards the fluid outlet.
- the receiver further includes a plate positioned within the housing and surrounding the rod portion.
- the plate includes through holes provided therein.
- the receiver includes a spring mounted on the rod portion. The spring is configured to bias a movement of the piston with respect to the housing. Further, the plate and the head portion of the piston define an adjustable volume therebetween. The volume is adjusted based on the movement of the piston with respect to the housing.
- a system in another aspect of the present disclosure, includes a reductant tank.
- the system also includes a receiver for the reductant tank.
- the receiver includes a housing.
- the housing defines a fluid inlet and a fluid outlet.
- the fluid inlet and the fluid outlet are positioned at opposing ends of the housing.
- the receiver also includes a piston.
- the piston includes a head portion positioned at the fluid inlet.
- the piston also includes a rod portion.
- the rod portion extends from the head portion towards the fluid outlet.
- the receiver further includes a plate positioned within the housing and surrounding the rod portion.
- the plate includes through holes provided therein.
- the receiver includes a spring mounted on the rod portion. The spring is configured to bias a movement of the piston with respect to the housing. Further, the plate and the head portion of the piston define an adjustable volume therebetween. The volume is adjusted based on the movement of the piston with respect to the housing.
- a method for accommodating an expansion in a volume of a fluid present in a receiver includes connecting a fluid supply to the receiver.
- the method also includes receiving the fluid into a fluid inlet of the receiver.
- the method further includes moving a piston of the receiver in an inward direction within a housing of the receiver.
- the method includes providing the fluid to a tank.
- the method also includes disconnecting the fluid supply.
- the method further includes moving the piston in an outward direction with respect to the housing during the expansion in the volume of the fluid present in the receiver.
- FIG. 1 is a perspective view of an exemplary fill system for a reductant tank, according to one embodiment of the present disclosure
- FIGS. 2 and 3 are perspective cross-sectional views of a receiver for the reductant tank, during a fill operation
- FIG. 4 is a perspective cross-sectional view of the receiver, during an expansion of a reductant within the receiver
- FIG. 5 is a perspective cross sectional view of another configuration of the receiver, according to one embodiment of the present disclosure.
- FIG. 6 is a flowchart for a method of accommodating an expansion in a volume of the reductant present in the receiver.
- a reductant delivery and supply system is associated with an aftertreatment module of an engine (not shown).
- the aftertreatment module may be used to treat an exhaust stream which leaves the engine.
- the exhaust stream generally contains emissions which may include nitrogen oxides (NOx), unburned hydrocarbons, and particulate matter.
- the aftertreatment module is generally designed to reduce the content of NOx, unburned hydrocarbons, particulate matter, or other components of the emissions prior to the exhaust stream being released from the engine.
- the reductant delivery and supply system may include a reductant tank 100 , a dosing module (not shown) and other components for supplying a reductant, such as Diesel Exhaust Fluid (DEF), to the aftertreatment module.
- Alternative liquid reductants may comprise ammonia or any other reducing agent.
- FIG. 1 illustrates an exemplary fill system 102 for the reductant tank 100 , according to one embodiment of the present disclosure.
- the reductant tank 100 may be positioned inside a machine (not shown).
- the reductant tank 100 may be fluidly connected to the dosing module via a breather 104 for supplying the reductant into the exhaust stream of the engine.
- the reductant tank 100 may be made of a polymer, a metal or any other known material. Parameters related to the reductant tank 100 , such as, shape, dimensions, material used and location of the reductant tank 100 may vary as per the system requirements.
- a valve 106 may be attached to the reductant tank 100 for receiving the reductant into the reductant tank 100 from an external reductant supply. Based on a level of the reductant present within the reductant tank 100 , the valve 106 is configured to control a reductant flow into the reductant tank 100 .
- the valve 106 may be positioned on a top surface of the reductant tank 100 .
- the valve 106 may be fluidly connected to a receiver 108 positioned on a frame of the machine. A portion of the receiver 108 is shown in FIG. 1 .
- a hose 110 , a flexible pipe or any other filling line defining a conduit therein for the flow of the reductant into the valve 106 may be utilized to form the connection between the valve 106 and the receiver 108 .
- the receiver 108 is configured to connect to the external reductant supply during a fill operation. The filling of the reductant from the external reductant supply into the receiver 108 will be explained in detail in connection with FIGS. 2 and 3 .
- the receiver 108 includes a housing 112 .
- the housing 112 has a two piece design.
- the two piece design may be assembled using any known methods to form the housing 112 , for example, welding.
- the housing 112 may have a hollow configuration.
- the housing 112 defines a fluid inlet 114 and a fluid outlet 116 .
- the fluid inlet 114 and the fluid outlet 116 are positioned at opposing ends of the housing 112 .
- An interior space of the housing 112 is defined between the fluid inlet 114 and the fluid outlet 116 of the housing 112 .
- the fluid inlet 114 of the housing 112 is configured to be coupled to the external reductant supply.
- a portion of a nozzle 120 of the external reductant supply is shown in FIGS. 2 and 3 .
- the fluid outlet 116 is fluidly coupled to the reductant tank 100 via the hose 110 .
- the receiver 108 includes a piston 122 slidably received within the housing 112 .
- the piston 122 is configured to provide the flow of the reductant into the receiver 108 , based on a movement of the piston 122 .
- the fluid inlet 114 may include a sealing ring 124 provided within a groove of the housing 112 .
- the sealing ring 124 may be configured to seal the fluid inlet 114 with respect to the housing 112 of the receiver 108 .
- the piston 122 includes a head portion 126 .
- the head portion 126 of the piston 122 is positioned at the fluid inlet 114 of the housing 112 .
- the head portion 126 of the piston 122 is provided in sliding contact with an inner surface of a neck 118 of the fluid inlet 114 . Accordingly, an outer diameter of the head portion 126 is lesser than the diameter of the neck 118 of the fluid inlet 114 so that the head portion 126 of the piston 122 may be received therein.
- the head portion 126 may have a circular cross section.
- the head portion 126 may have a centrally disposed hole therein. A depth of the hole is lesser than an overall thickness of the head portion 126 .
- the piston 122 also includes a rod portion 128 .
- the rod portion 128 extends from the head portion 126 of the piston 122 towards the fluid outlet 116 .
- the rod portion 128 is provided as a separate unit from that of the head portion 126 .
- a part of the rod portion 128 is received by the hole provided within the head portion 126 .
- the head portion 126 and the rod portion 128 of the piston 122 may be manufactured as a single unit.
- the receiver 108 includes a plate 130 fixedly provided within the housing 112 of the receiver 108 .
- the plate 130 is configured to partially surround a length of the rod portion 128 of the piston 122 .
- the plate 130 is configured to divide the interior space of the housing 112 into a first portion 132 and a second portion 134 .
- the plate 130 may have a disc shaped configuration with through holes 136 provided therein.
- the through holes 136 are configured to allow fluid communication between the first and second portions 132 , 134 of the housing 112 .
- the through holes 136 are kidney shaped.
- the through holes 136 may have a circular shape.
- the plate 130 includes a projection 138 extending from a surface of the plate 130 towards the fluid inlet 114 .
- the plate 130 also includes a centrally disposed through hole. A diameter of the through hole is slightly larger than an outer diameter of the rod portion 128 , such that the rod portion 128 of the piston 122 may slide within the through hole.
- a spring may be provided in connection with the piston 122 , to bias a movement of the piston 122 within the housing 112 of the receiver 108 .
- the plate 130 and the head portion 126 of the piston 122 define an adjustable volume of the housing 112 therebetween. The volume is adjusted based on an inward or an outward movement of the piston 122 with respect to the housing 112 . For example, the volume may increase during the outward movement of the piston 122 , and will be explained in detail later in this section.
- a first spring 140 is provided between the head portion 126 of the piston 122 and the plate 130 , such that the first spring 140 partly surrounds the length of the rod portion 128 of the piston 122 .
- a portion of the first spring 140 is received into the head portion 126 of the piston 122 .
- the head portion 126 and the projection 138 extending from the plate 130 may serve as end stops for the first spring 140 .
- a second spring 142 is mounted on the rod portion 128 of the piston 122 and in the second portion 134 of the receiver 108 .
- the receiver 108 includes a retention element 144 provided at an end of the rod portion 128 proximate to the fluid outlet 116 .
- a stopper 146 or washer is provided in close contact with the retention element 144 .
- a length of the second spring 142 is accommodated between the plate 130 and the stopper 146 .
- the plate 130 and the stopper 146 may serve as end stops for the second spring 142 .
- the nozzle 120 of the external reductant supply is connected to the fluid inlet 114 of the receiver 108 .
- the nozzle 120 includes a piston 148 therein.
- the piston 148 of the nozzle 120 is brought in contact with the piston 122 of the receiver 108 .
- the piston 122 of the receiver 108 is biased in a closed position by the first spring 140 .
- the piston 148 of the nozzle 120 is configured to exert a force on the head portion 126 of the piston 122 , against a spring force of the first spring 140 . This in turn, causes the first spring 140 to compress against the projection 138 of the plate 130 .
- the second spring 142 may expand between the plate 130 and the stopper 146 .
- the piston 122 of the receiver 108 may then move in the inward direction with respect to the housing 112 .
- the inward movement of the piston 122 may create a passage for the flow of the reductant into the receiver 108 .
- the reductant may flow through the through holes 136 , from the first portion 132 of the receiver 108 to the second portion 134 of the receiver 108 . Further, the reductant may exit the receiver 108 through the fluid outlet 116 .
- the reductant may then be introduced in to the reductant tank 100 via the hose 110 and the valve 106 .
- the nozzle 120 is decoupled from the fluid inlet 114 of the receiver 108 .
- the first spring 140 may expand, causing the piston 122 of the receiver 108 to move in the outward direction, thereby closing the fluid inlet 114 .
- the second spring 142 may compress when the piston 122 moves in the outward direction.
- the reductant flowing through the aftertreatment module is susceptible to freezing. It should be noted that some quantity of the reductant may be present within the hose 110 and the receiver 108 . In machines operating in a relatively cold environment, the reductant present within a receiving element may tend to freeze and expand. The expansion of the reductant may cause the receiving element to get damaged. In some situations, this may lead to a rupture of the receiving element.
- the present disclosure relates to a provision for accommodating the expansion of the reductant present within the receiver 108 .
- the expanding reductant in the receiver 108 applies a force on the second spring 142 mounted on the rod portion 128 .
- the second spring 142 compresses on account of the applied force, thereby moving the piston 122 in the outward direction.
- the movement of the piston 122 in the outward direction causes an increase in a volume of the first portion 132 of the receiver 108 .
- the increase in the volume may accommodate the expansion of the reductant therein.
- the increase in the volume of the receiver 108 is based on dimensions of the fluid inlet 114 and the head portion 126 of the piston 122 .
- the increase in the volume may depend on parameters, such as, the diameter and the depth of the neck 118 of the fluid inlet 114 and also on the thickness of the head portion 126 .
- the head portion 126 of the piston 122 may extend out of the fluid inlet 114 , thereby creating additional space or volume within the receiver 108 .
- the increase in the volume may depend upon a cross-sectional area of the fluid inlet 114 and the depth of the neck 118 of the fluid inlet 114 . Further, it is desirable that the thickness of the head portion 126 is adjusted such that during the movement of the piston 122 in the outward direction, the head portion 126 is not completely ejected from the fluid inlet 114 .
- FIG. 5 illustrates another design of the receiver 108 ′, according to an alternate embodiment of the present disclosure.
- the working of the receiver 108 ′ is similar to the working of the receiver 108 described above.
- the housing 112 ′ has a single piece.
- the plate 130 ′ may additionally include a second projection 150 , such that the second projection 150 extends from the plate 130 ′ towards the fluid outlet 116 ′.
- the second spring 142 ′ is mounted within the first spring 140 ′.
- the second spring 142 ′ is mounted on the rod portion 128 ′, such that the second spring 142 ′ lies between an inner surface of the projection 138 ′ of the plate 130 ′ and an outer surface of the rod portion 128 ′ of the piston 122 ′.
- the housing 112 , 112 ′, the plate 130 , 130 ′ and the piston 122 , 122 ′ disclosed herein may be made from any metal, polymer or ceramic known in the art. Also, dimensions of the receiver 108 , 108 ′ may vary based on the type of application the receiver 108 , 108 ′ is being used for.
- Expansion of the reductant within the receiving element may cause rupturing of the receiving element.
- the receiver 108 , 108 ′ disclosed herein includes the adjustable volume, wherein the movement of the piston 122 , 122 ′ in the outward direction may cause the increase in the volume within the receiver 108 , 108 ′ for accommodating the expansion of the reductant.
- FIG. 6 is a flowchart for a method 600 of accommodating the expansion in the volume of the reductant present in the receiver 108 , 108 ′.
- the external reductant supply is connected to the receiver 108 , 108 ′.
- the reductant is received into the fluid inlet 114 of the receiver 108 , 108 ′.
- the piston 122 , 122 ′ moves in the inward direction within the housing 112 , 112 ′ of the receiver 108 , 108 ′. More particularly, the piston 148 of the nozzle 120 is configured to move the piston 122 , 122 ′ of the receiver 108 , 108 ′ in the inward direction against the spring force of the first spring 140 , 140 ′.
- the reductant is provided to the reductant tank 100 via the fluid outlet 116 , 116 ′ and the hose 110 .
- the external reductant supply is disconnected from the receiver 108 , 108 ′.
- the piston 122 , 122 ′ moves in the outward direction with respect to the housing 112 , 112 ′, during the expansion in the volume of the reductant present in the receiver 108 , 108 ′.
- receiver 108 , 108 ′disclosed herein may be used in applications other than aftertreatment module, to accommodate the expansion of any freezing fluid present within the receiver 108 , 108 ′.
- the receiver 108 , 108 ′ may be used in agricultural, automotive, hydraulic applications, and the like.
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- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
A receiver is disclosed. The receiver includes a housing. The housing defines a fluid inlet and a fluid outlet. The fluid inlet and the fluid outlet are positioned at opposing ends of the housing. The receiver also includes a piston. The piston includes a head portion positioned at the fluid inlet. The piston also includes a rod portion. The rod portion extends from the head portion towards the fluid outlet. The receiver further includes a plate positioned within the housing and surrounding the rod portion. The plate includes through holes provided therein. The receiver includes a spring mounted on the rod portion. The spring is configured to bias a movement of the piston with respect to the housing. Further, the plate and the head portion of the piston define an adjustable volume therebetween. The volume is adjusted based on the movement of the piston with respect to the housing.
Description
- The present disclosure relates to a receiver, and more particularly to the receiver associated with a reductant tank.
- A reductant tank associated with an aftertreatment system of an engine may be filled with a reductant using a pressurized fill system. A hose and a receiver may be positioned upstream of the reductant tank. In order to fill the reductant in the reductant tank, an external reductant source may be connected to the receiver. The hose and the receiver may introduce the reductant into the reductant tank.
- U.S. Pat. No. 8,430,261 discloses a closure cover for tanks under internal pressure, with a cover body which can be fixed in a tank neck by rotation, and with a cover which is provided with a handle and is operatively connected to the cover body, and with a pressure control valve. A coupling device is arranged between the cover body and the cover and, during the positive pressure which prevails in the fuel tank during normal operation, releases the rotational connection between the cover body and the cover such that the fuel tank cannot be opened, and in that a pressure control valve is provided which opens when the positive pressure prevailing during normal operation is exceeded.
- In one aspect of the present disclosure, a receiver is disclosed. The receiver includes a housing. The housing defines a fluid inlet and a fluid outlet. The fluid inlet and the fluid outlet are positioned at opposing ends of the housing. The receiver also includes a piston. The piston includes a head portion positioned at the fluid inlet. The piston also includes a rod portion. The rod portion extends from the head portion towards the fluid outlet. The receiver further includes a plate positioned within the housing and surrounding the rod portion. The plate includes through holes provided therein. The receiver includes a spring mounted on the rod portion. The spring is configured to bias a movement of the piston with respect to the housing. Further, the plate and the head portion of the piston define an adjustable volume therebetween. The volume is adjusted based on the movement of the piston with respect to the housing.
- In another aspect of the present disclosure, a system is provided. The system includes a reductant tank. The system also includes a receiver for the reductant tank. The receiver includes a housing. The housing defines a fluid inlet and a fluid outlet. The fluid inlet and the fluid outlet are positioned at opposing ends of the housing. The receiver also includes a piston. The piston includes a head portion positioned at the fluid inlet. The piston also includes a rod portion. The rod portion extends from the head portion towards the fluid outlet. The receiver further includes a plate positioned within the housing and surrounding the rod portion. The plate includes through holes provided therein. The receiver includes a spring mounted on the rod portion. The spring is configured to bias a movement of the piston with respect to the housing. Further, the plate and the head portion of the piston define an adjustable volume therebetween. The volume is adjusted based on the movement of the piston with respect to the housing.
- In yet another aspect of the present disclosure, a method for accommodating an expansion in a volume of a fluid present in a receiver is disclosed. The method includes connecting a fluid supply to the receiver. The method also includes receiving the fluid into a fluid inlet of the receiver. The method further includes moving a piston of the receiver in an inward direction within a housing of the receiver. The method includes providing the fluid to a tank. The method also includes disconnecting the fluid supply. The method further includes moving the piston in an outward direction with respect to the housing during the expansion in the volume of the fluid present in the receiver.
- Other features and aspects of this disclosure will be apparent from the following description and the accompanying drawings.
-
FIG. 1 is a perspective view of an exemplary fill system for a reductant tank, according to one embodiment of the present disclosure; -
FIGS. 2 and 3 are perspective cross-sectional views of a receiver for the reductant tank, during a fill operation; -
FIG. 4 is a perspective cross-sectional view of the receiver, during an expansion of a reductant within the receiver; -
FIG. 5 is a perspective cross sectional view of another configuration of the receiver, according to one embodiment of the present disclosure; and -
FIG. 6 is a flowchart for a method of accommodating an expansion in a volume of the reductant present in the receiver. - Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or the like parts. A reductant delivery and supply system is associated with an aftertreatment module of an engine (not shown). The aftertreatment module may be used to treat an exhaust stream which leaves the engine. The exhaust stream generally contains emissions which may include nitrogen oxides (NOx), unburned hydrocarbons, and particulate matter. The aftertreatment module is generally designed to reduce the content of NOx, unburned hydrocarbons, particulate matter, or other components of the emissions prior to the exhaust stream being released from the engine. The reductant delivery and supply system may include a
reductant tank 100, a dosing module (not shown) and other components for supplying a reductant, such as Diesel Exhaust Fluid (DEF), to the aftertreatment module. Alternative liquid reductants may comprise ammonia or any other reducing agent. -
FIG. 1 illustrates anexemplary fill system 102 for thereductant tank 100, according to one embodiment of the present disclosure. Thereductant tank 100 may be positioned inside a machine (not shown). Thereductant tank 100 may be fluidly connected to the dosing module via abreather 104 for supplying the reductant into the exhaust stream of the engine. Thereductant tank 100 may be made of a polymer, a metal or any other known material. Parameters related to thereductant tank 100, such as, shape, dimensions, material used and location of thereductant tank 100 may vary as per the system requirements. - A
valve 106 may be attached to thereductant tank 100 for receiving the reductant into thereductant tank 100 from an external reductant supply. Based on a level of the reductant present within thereductant tank 100, thevalve 106 is configured to control a reductant flow into thereductant tank 100. Thevalve 106 may be positioned on a top surface of thereductant tank 100. Thevalve 106 may be fluidly connected to areceiver 108 positioned on a frame of the machine. A portion of thereceiver 108 is shown inFIG. 1 . Further, ahose 110, a flexible pipe or any other filling line defining a conduit therein for the flow of the reductant into thevalve 106 may be utilized to form the connection between thevalve 106 and thereceiver 108. Thereceiver 108 is configured to connect to the external reductant supply during a fill operation. The filling of the reductant from the external reductant supply into thereceiver 108 will be explained in detail in connection withFIGS. 2 and 3 . - Referring to
FIG. 2 , thereceiver 108 includes ahousing 112. In the illustrated embodiment, thehousing 112 has a two piece design. The two piece design may be assembled using any known methods to form thehousing 112, for example, welding. Thehousing 112 may have a hollow configuration. Further, thehousing 112 defines afluid inlet 114 and afluid outlet 116. Thefluid inlet 114 and thefluid outlet 116 are positioned at opposing ends of thehousing 112. An interior space of thehousing 112 is defined between thefluid inlet 114 and thefluid outlet 116 of thehousing 112. Thefluid inlet 114 of thehousing 112 is configured to be coupled to the external reductant supply. A portion of anozzle 120 of the external reductant supply is shown inFIGS. 2 and 3 . Further, thefluid outlet 116 is fluidly coupled to thereductant tank 100 via thehose 110. - The structure of the
receiver 108 will now be explained in detail. Thereceiver 108 includes apiston 122 slidably received within thehousing 112. Thepiston 122 is configured to provide the flow of the reductant into thereceiver 108, based on a movement of thepiston 122. Thefluid inlet 114 may include asealing ring 124 provided within a groove of thehousing 112. The sealingring 124 may be configured to seal thefluid inlet 114 with respect to thehousing 112 of thereceiver 108. Thepiston 122 includes ahead portion 126. Thehead portion 126 of thepiston 122 is positioned at thefluid inlet 114 of thehousing 112. Thehead portion 126 of thepiston 122 is provided in sliding contact with an inner surface of aneck 118 of thefluid inlet 114. Accordingly, an outer diameter of thehead portion 126 is lesser than the diameter of theneck 118 of thefluid inlet 114 so that thehead portion 126 of thepiston 122 may be received therein. Thehead portion 126 may have a circular cross section. Thehead portion 126 may have a centrally disposed hole therein. A depth of the hole is lesser than an overall thickness of thehead portion 126. - The
piston 122 also includes arod portion 128. Therod portion 128 extends from thehead portion 126 of thepiston 122 towards thefluid outlet 116. In the illustrated embodiment, therod portion 128 is provided as a separate unit from that of thehead portion 126. A part of therod portion 128 is received by the hole provided within thehead portion 126. Alternatively, thehead portion 126 and therod portion 128 of thepiston 122 may be manufactured as a single unit. - The
receiver 108 includes aplate 130 fixedly provided within thehousing 112 of thereceiver 108. Theplate 130 is configured to partially surround a length of therod portion 128 of thepiston 122. Theplate 130 is configured to divide the interior space of thehousing 112 into afirst portion 132 and asecond portion 134. Theplate 130 may have a disc shaped configuration with throughholes 136 provided therein. The throughholes 136 are configured to allow fluid communication between the first andsecond portions housing 112. In the illustrated embodiment, the throughholes 136 are kidney shaped. Alternatively, the throughholes 136 may have a circular shape. - The
plate 130 includes aprojection 138 extending from a surface of theplate 130 towards thefluid inlet 114. Theplate 130 also includes a centrally disposed through hole. A diameter of the through hole is slightly larger than an outer diameter of therod portion 128, such that therod portion 128 of thepiston 122 may slide within the through hole. - A spring may be provided in connection with the
piston 122, to bias a movement of thepiston 122 within thehousing 112 of thereceiver 108. Theplate 130 and thehead portion 126 of thepiston 122 define an adjustable volume of thehousing 112 therebetween. The volume is adjusted based on an inward or an outward movement of thepiston 122 with respect to thehousing 112. For example, the volume may increase during the outward movement of thepiston 122, and will be explained in detail later in this section. - In one embodiment, a
first spring 140 is provided between thehead portion 126 of thepiston 122 and theplate 130, such that thefirst spring 140 partly surrounds the length of therod portion 128 of thepiston 122. In the illustrated embodiment, a portion of thefirst spring 140 is received into thehead portion 126 of thepiston 122. During the movement of thepiston 122, thehead portion 126 and theprojection 138 extending from theplate 130 may serve as end stops for thefirst spring 140. - Further, a
second spring 142 is mounted on therod portion 128 of thepiston 122 and in thesecond portion 134 of thereceiver 108. Further, thereceiver 108 includes aretention element 144 provided at an end of therod portion 128 proximate to thefluid outlet 116. Astopper 146 or washer is provided in close contact with theretention element 144. A length of thesecond spring 142 is accommodated between theplate 130 and thestopper 146. During the movement of thepiston 122, theplate 130 and thestopper 146 may serve as end stops for thesecond spring 142. - As shown in
FIG. 2 , during the fill operation, thenozzle 120 of the external reductant supply is connected to thefluid inlet 114 of thereceiver 108. Thenozzle 120 includes apiston 148 therein. Thepiston 148 of thenozzle 120 is brought in contact with thepiston 122 of thereceiver 108. As shown inFIG. 2 , thepiston 122 of thereceiver 108 is biased in a closed position by thefirst spring 140. - Referring now to
FIG. 3 , thepiston 148 of thenozzle 120 is configured to exert a force on thehead portion 126 of thepiston 122, against a spring force of thefirst spring 140. This in turn, causes thefirst spring 140 to compress against theprojection 138 of theplate 130. Thesecond spring 142 may expand between theplate 130 and thestopper 146. Thepiston 122 of thereceiver 108 may then move in the inward direction with respect to thehousing 112. The inward movement of thepiston 122 may create a passage for the flow of the reductant into thereceiver 108. The reductant may flow through the throughholes 136, from thefirst portion 132 of thereceiver 108 to thesecond portion 134 of thereceiver 108. Further, the reductant may exit thereceiver 108 through thefluid outlet 116. The reductant may then be introduced in to thereductant tank 100 via thehose 110 and thevalve 106. - After completion of the fill operation of the reductant, the
nozzle 120 is decoupled from thefluid inlet 114 of thereceiver 108. Thefirst spring 140 may expand, causing thepiston 122 of thereceiver 108 to move in the outward direction, thereby closing thefluid inlet 114. Also, thesecond spring 142 may compress when thepiston 122 moves in the outward direction. - The reductant flowing through the aftertreatment module is susceptible to freezing. It should be noted that some quantity of the reductant may be present within the
hose 110 and thereceiver 108. In machines operating in a relatively cold environment, the reductant present within a receiving element may tend to freeze and expand. The expansion of the reductant may cause the receiving element to get damaged. In some situations, this may lead to a rupture of the receiving element. - The present disclosure relates to a provision for accommodating the expansion of the reductant present within the
receiver 108. Referring now toFIG. 4 , the expanding reductant in thereceiver 108 applies a force on thesecond spring 142 mounted on therod portion 128. Thesecond spring 142 compresses on account of the applied force, thereby moving thepiston 122 in the outward direction. The movement of thepiston 122 in the outward direction causes an increase in a volume of thefirst portion 132 of thereceiver 108. The increase in the volume may accommodate the expansion of the reductant therein. - It should be noted that the increase in the volume of the
receiver 108 is based on dimensions of thefluid inlet 114 and thehead portion 126 of thepiston 122. In one example, the increase in the volume may depend on parameters, such as, the diameter and the depth of theneck 118 of thefluid inlet 114 and also on the thickness of thehead portion 126. When thepiston 122 moves in the outward direction, thehead portion 126 of thepiston 122 may extend out of thefluid inlet 114, thereby creating additional space or volume within thereceiver 108. The increase in the volume may depend upon a cross-sectional area of thefluid inlet 114 and the depth of theneck 118 of thefluid inlet 114. Further, it is desirable that the thickness of thehead portion 126 is adjusted such that during the movement of thepiston 122 in the outward direction, thehead portion 126 is not completely ejected from thefluid inlet 114. -
FIG. 5 illustrates another design of thereceiver 108′, according to an alternate embodiment of the present disclosure. The working of thereceiver 108′ is similar to the working of thereceiver 108 described above. Thehousing 112′ has a single piece. Further, theplate 130′ may additionally include asecond projection 150, such that thesecond projection 150 extends from theplate 130′ towards thefluid outlet 116′. In the illustrated embodiment, thesecond spring 142′ is mounted within thefirst spring 140′. Thesecond spring 142′ is mounted on therod portion 128′, such that thesecond spring 142′ lies between an inner surface of theprojection 138′ of theplate 130′ and an outer surface of therod portion 128′ of thepiston 122′. Thehousing plate piston receiver receiver - Expansion of the reductant within the receiving element may cause rupturing of the receiving element. The
receiver piston receiver -
FIG. 6 is a flowchart for amethod 600 of accommodating the expansion in the volume of the reductant present in thereceiver step 602, the external reductant supply is connected to thereceiver step 604, the reductant is received into thefluid inlet 114 of thereceiver step 606, thepiston housing receiver piston 148 of thenozzle 120 is configured to move thepiston receiver first spring - At
step 608, the reductant is provided to thereductant tank 100 via thefluid outlet hose 110. Atstep 610, the external reductant supply is disconnected from thereceiver step 612, thepiston housing receiver - It should be noted that the
receiver receiver receiver - While aspects of the present disclosure have been particularly shown and described with reference to the embodiments above, it will be understood by those skilled in the art that various additional embodiments may be contemplated by the modification of the disclosed machines, systems and methods without departing from the spirit and scope of what is disclosed. Such embodiments should be understood to fall within the scope of the present disclosure as determined based upon the claims and any equivalents thereof.
Claims (16)
1. A receiver comprising:
a housing defining a fluid inlet and a fluid outlet, wherein the fluid inlet and the fluid outlet are positioned at opposing ends of the housing;
a piston comprising:
a head portion positioned at the fluid inlet; and
a rod portion extending from the head portion towards the fluid outlet;
a plate positioned within the housing and surrounding the rod portion, the plate including through holes provided therein; and
a spring mounted on the rod portion, the spring configured to bias a movement of the piston with respect to the housing,
wherein the plate and the head portion of the piston define an adjustable volume therebetween, such that the volume is adjusted based on the movement of the piston with respect to the housing.
2. The receiver of claim 1 , wherein the movement of the piston is an inward direction with respect to the housing during an inflow of a fluid into the receiver.
3. The receiver of claim 1 , wherein the movement of the piston is an outward direction with respect to the housing during an expansion of the fluid.
4. The receiver of claim 1 further comprising:
a stopper provided at one end of the rod portion.
5. The receiver of claim 4 , wherein the spring includes a first spring mounted between the head portion of the piston and the plate and a second spring mounted between the plate and the stopper.
6. The receiver of claim 1 , wherein the spring includes a first spring mounted between the head portion of the piston and the plate, and a second spring mounted within the first spring.
7. The receiver of claim 1 , wherein the adjustment in the volume is based on a diameter of a neck of the fluid inlet, a depth of the neck of the fluid inlet and a thickness of the head portion of the piston.
8. The receiver of claim 1 further comprising:
a sealing member provided between the piston and the fluid inlet.
9. The receiver of claim 1 , wherein the through holes are kidney shaped.
10. A system comprising:
a reductant tank; and
a receiver for the reductant tank, the receiver comprising:
a housing defining a fluid inlet and a fluid outlet, wherein the fluid inlet and the fluid outlet are positioned at opposing ends of the housing;
a piston comprising:
a head portion positioned at the fluid inlet; and
a rod portion extending from the head portion towards the fluid outlet;
a plate positioned within the housing and surrounding the rod portion, the plate including through holes provided therein; and
a spring mounted on the rod portion, the spring configured to bias a movement of the piston with respect to the housing,
wherein the plate and the head portion of the piston define an adjustable volume therebetween, such that the volume is adjusted based on the movement of the piston with respect to the housing.
11. The system of claim 10 , wherein the fluid inlet is configured to receive a fluid supply from an external source.
12. The system of claim 10 , wherein the fluid outlet is connected to the reductant tank.
13. The system of claim 10 , wherein the spring includes a first spring mounted between the head portion of the piston and the plate, and a second spring mounted between the plate and a stopper.
14. The system of claim 10 , wherein the spring includes a first spring mounted between the head portion of the piston and the plate, and a second spring mounted within the first spring.
15. The system of claim 10 , wherein the adjustment in the volume is based on a diameter of a neck of the fluid inlet, a depth of the neck of the fluid inlet and a thickness of the head portion of the piston.
16. A method for accommodating an expansion in a volume of a fluid present in a receiver, the method comprising:
connecting a fluid supply to the receiver;
receiving the fluid into a fluid inlet of the receiver;
moving a piston of the receiver in an inward direction within a housing of the receiver;
providing the fluid to a tank;
disconnecting the fluid supply; and
moving the piston in an outward direction with respect to the housing during the expansion in the volume of the fluid present in the receiver.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/271,717 US20150321836A1 (en) | 2014-05-07 | 2014-05-07 | Receiver for reductant tank |
CN201520286630.XU CN204611004U (en) | 2014-05-07 | 2015-05-06 | Receiver and there is the system of described receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/271,717 US20150321836A1 (en) | 2014-05-07 | 2014-05-07 | Receiver for reductant tank |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150321836A1 true US20150321836A1 (en) | 2015-11-12 |
Family
ID=53963571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/271,717 Abandoned US20150321836A1 (en) | 2014-05-07 | 2014-05-07 | Receiver for reductant tank |
Country Status (2)
Country | Link |
---|---|
US (1) | US20150321836A1 (en) |
CN (1) | CN204611004U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018144418A1 (en) * | 2017-01-31 | 2018-08-09 | Tuthill Corporation | Closed system valve assembly with expanded flow path |
US10526192B2 (en) | 2017-03-31 | 2020-01-07 | Tuthill Corporation | Universal adapter |
US11001490B2 (en) | 2018-04-10 | 2021-05-11 | Bericap Holding Gmbh | Extraction system from a closed loop system |
US11358856B2 (en) * | 2019-05-22 | 2022-06-14 | Hyundai Motor Company | Opening device for urea water inlet of vehicle |
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US2896971A (en) * | 1954-08-31 | 1959-07-28 | Joseph F Kolar | Valve actuator for fluid connector |
US4327770A (en) * | 1979-11-23 | 1982-05-04 | Outboard Marine Corporation | Quick disconnect fluid line coupling |
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US5131859A (en) * | 1991-03-08 | 1992-07-21 | Cray Research, Inc. | Quick disconnect system for circuit board modules |
US5211197A (en) * | 1992-01-03 | 1993-05-18 | Aeroquip Corporation | Quick disconnect liquid line coupling with volumertric expansion couping element |
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US20070051912A1 (en) * | 2005-09-07 | 2007-03-08 | Massimo Arosio | Quick coupling with a compensation of the coupling tolerances |
US7401626B1 (en) * | 2004-11-18 | 2008-07-22 | Plattner Wesley M | Low air inclusion quick disconnect coupling |
WO2010102373A1 (en) * | 2009-03-12 | 2010-09-16 | Dynamics Do Brasil Metalurgia Ltda. | Female part for quick coupling |
US20120118406A1 (en) * | 2010-11-16 | 2012-05-17 | Richard Edgeworth | System for Increasing the Efficiency of a Water Meter |
-
2014
- 2014-05-07 US US14/271,717 patent/US20150321836A1/en not_active Abandoned
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2015
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US2394236A (en) * | 1943-11-15 | 1946-02-05 | Vilbiss Co | Coupling |
US2896971A (en) * | 1954-08-31 | 1959-07-28 | Joseph F Kolar | Valve actuator for fluid connector |
US2886061A (en) * | 1958-08-04 | 1959-05-12 | Fisher Governor Co | Lock type excess flow valve |
US4327770A (en) * | 1979-11-23 | 1982-05-04 | Outboard Marine Corporation | Quick disconnect fluid line coupling |
US5092363A (en) * | 1990-01-16 | 1992-03-03 | Ingersoll-Rand Company | Quick and dry coupling |
US5131859A (en) * | 1991-03-08 | 1992-07-21 | Cray Research, Inc. | Quick disconnect system for circuit board modules |
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US7401626B1 (en) * | 2004-11-18 | 2008-07-22 | Plattner Wesley M | Low air inclusion quick disconnect coupling |
US20070051912A1 (en) * | 2005-09-07 | 2007-03-08 | Massimo Arosio | Quick coupling with a compensation of the coupling tolerances |
WO2010102373A1 (en) * | 2009-03-12 | 2010-09-16 | Dynamics Do Brasil Metalurgia Ltda. | Female part for quick coupling |
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2018144418A1 (en) * | 2017-01-31 | 2018-08-09 | Tuthill Corporation | Closed system valve assembly with expanded flow path |
US10899600B2 (en) | 2017-01-31 | 2021-01-26 | Bericap Holding Gmbh | Closed system valve assembly with expanded flow path |
US10526192B2 (en) | 2017-03-31 | 2020-01-07 | Tuthill Corporation | Universal adapter |
US11001490B2 (en) | 2018-04-10 | 2021-05-11 | Bericap Holding Gmbh | Extraction system from a closed loop system |
US11358856B2 (en) * | 2019-05-22 | 2022-06-14 | Hyundai Motor Company | Opening device for urea water inlet of vehicle |
Also Published As
Publication number | Publication date |
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CN204611004U (en) | 2015-09-02 |
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Legal Events
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AS | Assignment |
Owner name: CATERPILLAR INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SPEAS, HERBERT H.;REEL/FRAME:032840/0028 Effective date: 20140428 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |