An improved hot water pressure washer utilizes a combination of technologies to achieve lower emission levels and increased operational efficiency. A forced air natural gas or forced air oil burner utilizes a flue gas and recirculation line to lower carbon monoxide and NOx emissions from a burner. A flue gas heat exchanger is utilized to lower the temperature of the exhaust gas. The lower exhaust gas temperatures allow for lower cost materials to be utilized. The efficiency levels of a hot water pressure washer are increased over known devices.

Disclosed is a cosmetic product comprising a) a cosmetic preparation containing, in relation to the total weight of the preparation, a1) at least about 88 wt % polar solvent; a2) at least about 0.1 wt % film-forming polymer; b) a device for flash evaporating cosmetic preparation a), the percentage by weight of components a1) and a2) being more than about 92% of the total weight of cosmetic preparation a). Also disclosed is a method using corresponding products and the use of cosmetic preparation a) as a process material in a flash evaporation device.

Disclosed is a cosmetic product comprising a) a cosmetic preparation containing, in relation to the total weight of the preparation, a1) at least about 88 wt % polar solvent; a2) at least about 0.1 wt % film-forming polymer; b) a device for flash evaporating cosmetic preparation a), the percentage by weight of components a1) and a2) being more than about 92% of the total weight of cosmetic preparation a). Also disclosed is a method using corresponding products and the use of cosmetic preparation a) as a process material in a flash evaporation device.

Aspects of the present invention provide a method and an apparatus for delivering a solution to a region of a human body, and washing, cleaning, and drying the region. The apparatus include a toilet seat assembly, and a spraying nozzle assembly. The spraying nozzle assembly includes one or more spray nozzle units having one ore more spray nozzle bodies that are retractable and adapted to deliver the solution, a first driving motor being connected to the one or more spray nozzle units and adapted for moving the one ore more spray nozzle bodies in retracting-and-extending motion, and a second driving motor being connected to the one or more spray nozzle unit and adapted for moving the one or more spray nozzle units in three-dimensional circular rotational motion. The one or more spray nozzle units may further include one or more nozzle jet head openings.

Aspects of the present invention provide a method for using an apparatus to deliver medicine and to wash, clean, and dry a region of a human body. The apparatus include a toilet seat assembly and a medicine delivery assembly. In addition, the apparatus may include a drying nozzle assembly and/or a spraying nozzle assembly. The medicine delivery assembly may include one or more medicine storage cartridges and/or one or more medicine base units, each medicine base unit includes at least a cartridge unit and at least a cartridges slot, wherein the cartridge slot is adapted to match with a medicine storage cartridge. The medicine delivery assembly may include a medicine delivery nozzle, which can be coupled to a spraying nozzle assembly, or may be operated by itself with a medicine delivery nozzle. Finally, the medicine delivery assembly can be controlled by one or more control units.

A circuit configuration for inductively heating a fuel injector, includes an injection valve heater coil having connections forming first and second nodes, a capacitor connected parallel to the heater coil, a first inductor connected between a positive pole of a supply voltage and the first node, a second inductor connected between the positive pole of the supply voltage and the second node, a first controllable switching element connected between the first node and a negative pole of the supply voltage, a second controllable switching element connected between the second node and the negative pole of the supply voltage, and a control unit connected to control inputs of the switching elements for applying a switch-on level to the control inputs when the voltage at the respective node connected to a switching element becomes 0 and for dimensioning a switch-on duration of the switching element according to a preset heating power.

Microfluidic delivery systems for dispensing a fluid composition into the air comprising microfluidic die and at least one heating element that is configured to receive an electrical signal comprising a certain on-time and wave form to deliver a fluid composition into the air.

Microfluidic delivery systems for dispensing a fluid composition into the air comprising microfluidic die and at least one heating element that is configured to receive an electrical signal comprising a certain on-time and wave form to deliver a fluid composition into the air.

A fluid injector comprising a coil arranged to drive a pump from a first state to a second state when energized, so as to pump a dosing fluid; a PN junction electrically arranged across the coil to discharge energy stored in the coil when the voltage across the coil is above a threshold. In one particular embodiment, the fluid injector is a selective catalytic reduction dosing fluid injector.

An insulated solution injector may include an outer tube and an inner tube arranged within the outer tube. The outer tube and the inner tube may define an annular space therebetween, and the inner tube may define a solution space within. The annular space may be configured so as to insulate the solution within the solution space. As a result, the solution may be kept to a temperature below its decomposition temperature prior to injection. Accordingly, the decomposition of the solution and the resulting deposition of its constituents within the solution space may be reduced or prevented, thereby decreasing or precluding the occurrence of a blockage.