F01N2610/148

Hydrocarbon dosing system
11326492 · 2022-05-10 · ·

The present disclosure relates to a hydrocarbon dosing system to control dosing of diesel fuel into an exhaust upstream of a vehicle's oxidation catalyst (VOC). The system 100 includes separate inlets (102,104) to allow inflow of a first fluid and the second fluid into the system, and an outlet 116. The first fluid configured to facilitate purging of the second fluid into the VOC through the outlet 116. The system 100 incorporates multiple valves (106, 108, 112) and pressure sensor 114 to control dosing and purging of the fluids. The system 100 provides an intrinsic non-return valve mechanism to restrict the flow of the first fluid into a fluid path of the second fluid, and vice versa. The system 100 provides intrinsic pressure relief mechanism for controlled release of pressure from system 100. The system 100 includes additional optional check valves 208 and filter screens 206 for redundancy purposes.

Mixer, exhaust aftertreatment component, exhaust aftertreatment system and vehicle

A mixer, an exhaust aftertreatment component, an exhaust aftertreatment system and a vehicle in which the mixer comprises: an inlet cover, providing an inlet space; an outlet cover, providing an outlet space; and a connecting pipe part, comprising a gas inlet inside the inlet space, a gas outlet inside the outlet space, and an injection inlet; wherein the connecting pipe part comprises a conical section and a pipe section connected downstream to the conical section, the conical section is located inside the inlet space, a side wall of the conical section comprises a plurality of openings distributed along a circumferential direction, the gas inlet comprises the plurality of openings, and a swirling structure is provided on the plurality of openings.

Sensor head with return line
11318831 · 2022-05-03 · ·

A sensor head for being arranged in an orifice of a fluid tank includes an opening in fluid communication with a fluid return line returning a fluid to the fluid tank and a bubble reducer device disposed at the opening. The bubble reducer device is configured to block bubbles in the fluid in the fluid return line while the fluid passes through the bubble reducer device during operation.

Systems and methods for fluid level and quality measurement for reductant storage systems
11319852 · 2022-05-03 · ·

A reductant storage system for an internal combustion engine system includes a storage container having a bottom wall, a top wall opposite the bottom wall, an opening extending through the top wall, and a reservoir formed by a hollow interior of the storage container; a filter assembly; and a header assembly. The filter assembly extends through the opening and is configured to seal the opening and includes a filtering material. The header assembly extends through the opening and inside the filter assembly. The header assembly includes: (i) a first sensor configured to measure a quality of the reductant contained within the filter assembly and (ii) a second sensor configured to measure a level of the reductant contained within the filter assembly.

DIESEL EXHAUST FLUID TANK HEATING SYSTEM

Systems and apparatuses include a diesel exhaust fluid tank, a first temperature sensor positioned within the diesel exhaust fluid tank and structured to provide first temperature information indicative of a first temperature, and a second temperature sensor positioned within the diesel exhaust fluid tank and structured to provide second temperature information indicative of a second temperature. The systems and apparatuses further include one or more processing circuits including one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to provide energy to a heating system based on the first temperature information and the second temperature information.

Reductant dosing system with calibration value determined based on data from pressure sensor assembly and method of calibrating a reductant dosing system

A reductant dosing system includes: an injector; a fixed displacement pump in fluid communication with the injector; a reductant source in fluid communication with the fixed displacement pump; a pressure sensor assembly configured to detect a pressure of reductant in the reductant dosing system; and a controller communicatively coupled to the fixed displacement pump and to the pressure sensor assembly, wherein the controller is configured to calculate a flow rate of the fixed displacement pump based on at least a calibration value determined based on data received from the pressure sensor assembly.

HYDROCARBON DOSING SYSTEM
20210363904 · 2021-11-25 ·

The present disclosure relates to a hydrocarbon dosing system to control dosing of diesel fuel into an exhaust upstream of a vehicle's oxidation catalyst (VOC). The system 100 includes separate inlets (102,104) to allow inflow of a first fluid and the second fluid into the system, and an outlet 116. The first fluid configured to facilitate purging of the second fluid into the VOC through the outlet 116. The system 100 incorporates multiple valves (106, 108, 112) and pressure sensor 114 to control dosing and purging of the fluids. The system 100 provides an intrinsic non-return valve mechanism to restrict the flow of the first fluid into a fluid path of the second fluid, and vice versa. The system 100 provides intrinsic pressure relief mechanism for controlled release of pressure from system 100. The system 100 includes additional optional check valves 208 and filter screens 206 for redundancy purposes.

Clamping apparatus and method of use thereof
11168601 · 2021-11-09 · ·

Clamping apparatus is provided including clamp means for clamping two or more items together in use. The clamping means are arranged to move between a clamped and an unclamped position in use. Attachment means are provided on or associated with the clamping means for attaching one or more components to said clamping means in use. The components consist of any or any combination of one or more sensor means, one or more dispensing means or one or more electronic components. The clamping means includes at least one band member. The at least one band member forms an outer band and the attachment means are provided on or associated with at least an additional band member in the form of an inner band or segment that is provided with or associated with the outer band.

Automated diesel exhaust fluid (DEF) system and method
11215097 · 2022-01-04 · ·

An automated diesel exhaust fluid (DEF) system and method for refilling DEF. The automated DEF system provides DEF refilling after an initial setup and without manual intervention. The automated DEF system includes a electric DEF flow control device that controls the flow of DEF. The electric DEF flow control device may include control circuitry, an electrics enclosure that encloses the control circuity, an electric fluid sensor, a valve, a beacon light, a status light, a button, a threaded swivel connection, and a mandrel on the inside of the threaded swivel connection.

PREVENTATIVE CONTROLS LOGIC FOR COOLANT CONTROL VALVE (CCV) STUCK OPEN

A Diesel Emissions Fluid (DEF) Thawing arrangement and method is provided for use with a vehicle having an engine, an Engine Control Module (ECM), an exhaust system, and a Selective Catalyst Reduction (SCR) catalytic device. A DEF injection system is connected to the exhaust system and to the ECM. A DEF tank is connected to the DEF injection system, and is provided with a Urea Quality Sensor (UQS). A coolant loop is connected to the engine and has a Coolant Control Valve (CCV) connected to a control module, and a coolant to DEF heat exchanger. A DEF temperature sensor and an ambient temperature sensor are connected to the control module. The control module is configured to trigger a CCV stuck open fault when the DEF tank temperature exceeds the ambient temperature by a threshold amount for a period of time.