A clothes dryer filter assembly for a clothes dryer includes a bottom portion configured to be coupled to an exhaust conduit, a center portion coupled to the bottom portion, and a top portion coupled to the center portion. The center portion is positioned between the bottom and top portions. The assembly includes a turbulence generator positioned within the bottom portion configured to generate turbulent airflow from air received from the exhaust of the clothes dryer. In addition, a lint filter is hingedly positioned within the center portion and downstream of the turbulence generator. The lint filter is configured to swing at least partially open in response to pressure from the turbulent air flow being blocked by lint trapped on the lint filter. The assembly includes an air deflector positioned within the bottom portion to direct an air flow to a side of the bottom portion.

A method of operating a cleaning process on a filter in a vehicle air intake includes passing air through the filter from an upstream side to a downstream side, and providing an exhaust duct having an inlet end adjacent the upstream side of the filter and an outlet end adjacent a cooling fan or other air-extraction device of the vehicle arranged to draw air through the exhaust duct from the inlet end to the outlet end. In a periodic cleaning subroutine, the rotational speed of the fan is increased from a first speed to a second speed, while a pulse of pressurized fluid is applied to a downstream side of the filter. The exhaust duct carries away material dislodged from the upstream side of the filter by the applied pulse, and the rotational speed of the fan is reduced to its original level.

A method for controlling an internal combustion engine including at least one exhaust-gas aftertreatment component having an electric heating element, the electric heating element heating the exhaust-gas aftertreatment component and the exhaust gas flowing through the exhaust-gas aftertreatment component, the electric heating element briefly or permanently being acted upon by a heating current, a gas, in particular fresh air and/or exhaust gas, flowing downstream through the exhaust-gas path. In the method, a first temperature upstream from the at least one exhaust-gas aftertreatment component is ascertained, a second temperature downstream from the exhaust-gas aftertreatment component is ascertained, and the exhaust-gas mass flow of the internal combustion engine is ascertained as a function of a first temperature difference between the first and the second temperature and a heating power of the electric heating element, and the internal combustion engine is controlled as a function of the exhaust-gas mass flow.

A method of oxidation-combusting an ingot grower comprises a) blocking between the filter housing and the exhaust pipe, b) forming the filter housing in a vacuum state, and c) injecting air into the filter housing through an injection pipe connected to a first side of the filter housing to combust the filter housing.

A system and method for maintaining, monitoring and improving air quality and purity in a room or environment, such as a hospital room or operating room.

A microwave irradiation device includes a housing capable of accommodating an object to be heated; a plurality of microwave resonators installed around the housing; a microwave conductor coupling the plurality of microwave resonators; a microwave generator configured to generate microwaves having different frequencies; and a microwave measurement circuit coupled to the housing or the microwave conduction unit. Each of the microwave resonators resonates a microwave having a resonance frequency of the microwave resonator generated in the microwave generator and irradiates the object placed in the housing with the resonated microwave, and one microwave resonator among the plurality of microwave resonators and another microwave resonator have different resonance frequencies.

Systems and methods for monitoring clogging in a cooking hood (120) are disclosed. The systems and methods can include measuring temperature in the non-exhaust side of a filter (110) and measuring pressure in an exhaust side of the filter (110) using temperature and pressure sensors (140,160). The systems and methods can further include comparing the measured temperatures and pressures to baseline temperature and pressure values to determine if clogging occurs using the controller (170), which is communicatively coupled with the temperature and pressure sensors (140,160).

Provided is a computer device. The computer device includes a case including a first opening, an intake filter box exposed through the first opening of the case, a main board within the case, and a power supply device within the case. The intake filter box includes a first air inflow surface exposed through the first opening, a first air discharge surface opposite to the first air inflow surface, and first moisture absorbents between the first air inflow surface and the first air discharge surface. Each of the first air inflow surface and the first air discharge surface includes a hole.

The invention relates to a filter arrangement comprising a filter cartridge, having an opening and a wall which is formed by a filter medium and has an inner side delimiting a clean side of the filter and an outer side delimiting a raw side of the filter, a fan for conveying air to be purified first through the wall and subsequently through the opening of the filter cartridge, and a purification device, which is configured to convey a jet of compressed air through the opening into the filter cartridge and through the wall out of the filter cartridge, for conveying dirt away from an outer wall of the wall. The invention also relates to a method for detecting a leak of a filter cartridge, wherein the filter cartridge has an opening and a wall which is formed by a filter medium and has an inner side delimiting a clean side of the filter and an outer side delimiting a raw side of the filter.

A natural gas processing system is mounted on a mobile platform that is transported to a natural gas source, such as a well. A liquid removal tank separates liquid contaminants from the gas. A particulate filter removes particulates from the gas. A membrane separates the natural gas into a retentate gas and a permeate gas. A gas compressor, powered by the natural gas, is selectively connected either upstream of the membrane or downstream of the membrane. For low pressure source gas, the upstream connection will compress the natural gas before entering the membrane. For high pressure source gas, the downstream connection will compress the natural gas after exiting the membrane. An electrical generator and an air compressor are provided. A process control is connected to all the valves in the system, all instruments, the gas compressor, the electrical generator, and the air compressor. The process control monitors and controls the natural gas processing system.