摘要:
A vehicle mounted tire changing system is provided of the type having a hydraulic jack system connected to a vehicle for lifting a portion of the vehicle relative to the supporting terrain and a pneumatic system carried by the vehicle for connecting air operated tools. The vehicle mounted tire changing system comprises: a plurality of hydraulic jacks mounted to a vehicle in a substantially vertical orientation relative to the supporting terrain; a hydraulic power unit coupled in communication with the hydraulic jacks for providing a hydraulic fluid under pressure to actuate the hydraulic jacks; a hydraulic manifold having valve assemblies coupled in fluid communication between the jacks and the hydraulic power means; a control unit for selectively activating the valve assemblies; an air compressor electrically connected to a battery via a switch for selectively operating the air compressor; a pair of air hoses each having a first end in fluid communication with the air compressor and a second end carrying an air tool connector for operably connecting air operated tools thereto, the connectors are connected to opposite sides of the vehicle. The hydraulic jack having an outer cylinder for mounting to the vehicle, an inner rod having a distal end, the inner rod operable to be hydraulically extended from and retracted into the outer cylinder and a base connected to the distal end of the inner rod.
摘要:
A transformer has a number of single turn primary windings 5 formed by printed circuit tracks on a flexible bendable sheet 3 which is wrapped around a core of the transformer. The primary windings are connected to output terminals 12 of an enclosure 1 of the transformer by another printed circuit board 8 having further conductive tracks on opposite sides thereof to form balanced transmission lines whose impedance is matched to the impedance of the primary windings.
摘要:
A cooking oven is made with a flat base of refractory material and a dome of refractory material forming an enclosure in which solid fuel is burned while resting directly on the base and food is also cooked directly on the base. An opening is provided in the dome wall through which fuel and food can be separately inserted within the oven. Only a relatively small part of the dome is removed to form the opening, which extends only part way up the full height of the dome. A flue is located just outside the opening so that combustion products from the fuel pass generally horizontally through the enclosed space and out the opening and up the flue. A closure is provided to shut the opening to limit the escape of heat. The dome is made by casting hemispherical sectors of refractory material and assembling the sectors into a dome on the base. The sectors are formed with interlocking edges to help hold them together and the entire dome can be enclosed within an insulated chamber..
摘要:
The disclosure provides seven integrated methods for the chemical sequestration of carbon dioxide (CO2), nitric oxide (NO), nitrogen dioxide (NO2) (collectively NOx, where x=1, 2) and sulfur dioxide (SO2) using closed loop technology. The methods recycle process reagents and mass balance consumable reagents that can be made using electrochemical separation of sodium chloride (NaCl) or potassium chloride (KCl). The technology applies to marine and terrestrial exhaust gas sources for CO2, NOx and SO2. The integrated technology combines compatible and green processes that capture and/or convert CO2, NOx and SO2 into compounds that enhance the environment, many with commercial value.
摘要:
A transformer includes a primary winding; a secondary winding; a first electrostatic screen located between the primary winding and the secondary winding and most proximate to the primary winding; and a second electrostatic screen located between the primary winding and the secondary winding and most proximate to the secondary winding. The first electrostatic screen is electrically connectable to a power supply electrically connectable to the primary winding and the second electrostatic screen is electrically connectable to a load electrically connectable to the secondary winding. The invention also includes an inverter system including the transformer.
摘要:
A fire hose coupling comprises a body having a first end connected to a fire hose and a second end having threads. The fire hose coupling comprises a recessed portion formed in an outer surface of the body. The recessed portion is shaped to define a visuotactile directional indicator such as an arrow. The recessed portion may include a light-reflecting surface to enhance visibility such as a super reflective metal film, a photo luminescent coating, or a phosfluorescent coating. The recessed directional indicator may be formed in either female or male couplings.
摘要:
A high frequency cathode heater supply for a microwave source includes a SMPS inverter and an isolation transformer having a primary winding arranged to be powered by the SMPS inverter, a monitor winding passing through primary core assemblies of the primary winding and a secondary winding arranged for connection to the cathode heater. A current monitor is arranged to monitor a current in the primary windings. Signal processing modules are arranged to receive a first input signal from the monitor winding indicative of a voltage across the cathode heater and a second input signal from the current monitor indicative of a current through the cathode heater. The signal processing modules are arranged to output a control signal to the SMPS inverter to control power supplied to the cathode heater dependent on a monitored resistance of, or monitored power supplied to, the cathode heater as determined from the first input signal and the second input signal.
摘要:
A transformer comprises a primary winding 231; a secondary winding 233; a first electrostatic screen 234 located between the primary winding and the secondary winding and most proximate to the primary winding means; and a second electrostatic screen 235 located between the primary winding and the secondary winding means and most proximate to the secondary winding means. The first electrostatic screen is electrically connectable to a power supply electrically connectable to the primary winding and the second electrostatic screen is electrically connectable to a load electrically connectable to the secondary winding. The invention also includes an inverter system including the transformer.
摘要:
A magnetron has an anode and a cathode. The cathode includes two parts joined by sleeves of ferrous alloy spaced by a sleeve of insulating material. The ferrous alloy sleeves are adapted to be connected to opposite poles of a power supply for heating the cathode. A high frequency power supply is used to heat the cathode. The ferrous alloy sleeves have a surface coating of conductive material. The currents induced by the magnetic field generated by the high frequency currents of the power supply are largely confined to the conductive coating due to the skin effect, avoiding the heating of and losses in the ferrous alloy itself which would otherwise ensue.