30results about How to "Wide capacity range" patented technology

A battery (100) comprises an electrolyte in which a lanthanide and zinc form a redox pair. Preferred electrolytes are acid electrolytes, and most preferably comprise methane sulfonic acid, and it is further contemplated that suitable electrolytes may include at least two lanthanides. Contemplated lanthanides include cerium, praseodymium, neodymium, terbium, and dysprosium, and further contemplate lanthanides are samarium, europium, thulium and ytterbium.

A centrifugal compressor assembly for compressing refrigerant in a 250-ton capacity or larger chiller system comprising a motor, preferably a compact, high energy density motor or permanent magnet motor, for driving a shaft at a range of sustained operating speeds under the control of a variable speed drive. Another embodiment of the centrifugal compressor assembly comprises a mixed flow impeller and a vaneless diffuser sized such that a final stage compressor operates with an optimal specific speed range for targeted combinations of head and capacity, while a non-final stage compressor operates above the optimum specific speed of the final stage compressor. Another embodiment of the centrifugal compressor assembly comprises an integrated inlet flow conditioning assembly comprising a flow conditioning nose, a plurality of inlet guide vanes and a flow conditioning body that positions inlet guide vanes to condition flow of refrigerant into an impeller to achieve a target approximately constant angle swirl distribution with minimal guide vane turning.

A centrifugal compressor assembly for compressing refrigerant in a 250-ton capacity or larger chiller system comprising a motor, preferably a compact, high energy density motor or permanent magnet motor, for driving a shaft at a range of sustained operating speeds under the control of a variable speed drive. Another embodiment of the centrifugal compressor assembly comprises a mixed flow impeller and a vaneless diffuser sized such that a final stage compressor operates with an optimal specific speed range for targeted combinations of head and capacity, while a non-final stage compressor operates above the optimum specific speed of the final stage compressor. Another embodiment of the centrifugal compressor assembly comprises an integrated inlet flow conditioning assembly comprising a flow conditioning nose, a plurality of inlet guide vanes and a flow conditioning body that positions inlet guide vanes to condition flow of refrigerant into an impeller to achieve a target approximately constant angle swirl distribution with minimal guide vane turning.

A centrifugal compressor assembly for compressing refrigerant in a 250-ton capacity or larger chiller system comprising a motor, preferably a compact, high energy density motor or permanent magnet motor, for driving a shaft at a range of sustained operating speeds under the control of a variable speed drive. Another embodiment of the centrifugal compressor assembly comprises a mixed flow impeller and a vaneless diffuser sized such that a final stage compressor operates with an optimal specific speed range for targeted combinations of head and capacity, while a non-final stage compressor operates above the optimum specific speed of the final stage compressor. Another embodiment of the centrifugal compressor assembly comprises an integrated inlet flow conditioning assembly comprising a flow conditioning nose, a plurality of inlet guide vanes and a flow conditioning body that positions inlet guide vanes to condition flow of refrigerant into an impeller to achieve a target approximately constant angle swirl distribution with minimal guide vane turning.

A coaxial economizer for use in a chiller system comprising an inner housing and an outer housing having a common longitudinal axis. The outer housing has an inlet for receiving a fluid from a upstream compressor stage of a multistage compressor and an outlet for conveying a fluid to a downstream compressor stage of a multistage compressor. A flow chamber forms a fluid flow path about the inner housing. A flash chamber is coterminous with the flow chamber and flashes fluid in a liquid state to a gas state. A flow passage between said flash chamber and the flow chamber for conveying a flashed gas from the flash chamber to the flow chamber; wherein the flashed gas conveyed from the flash chamber and the fluid received from the inlet of the outer housing mix along the fluid flow path toward the outlet of the outer housing.

The invention discloses a three-phase three-dimensional non-circular transformer body structure which comprises an iron core and three coils. The iron core comprises three non-circular iron core columns with horizontal cross sections, the three coils surround the three iron core columns, the three coil structures are the same in size, the horizontal sections of the three coils are all non-circularshapes, each of the horizontal sections of the three coils has a curved side, a circumscribed circle is defined by the peripheries of the three coils, and the curved sides of the three coils are tangent to the circumscribed circle. The various performances of a transformer can be effectively improved by using the three-phase three-dimensional non-circular transformer body structure, and the manufacturing cost is reduced.

The invention provides a system and method for generating uniformly distributed twelve-phase discrete phase modulation single-phase voltage, and relates to the technical field of alternating current power supplies. According to the system and method for generating uniformly distributed twelve-phase discrete phase modulation single-phase voltage, the system comprises a three-phase transformer, a primary winding is arranged in the three-phase transformer, a secondary winding is arranged in the three-phase transformer, the input end of the primary winding is connected with the input end of the transformer, and the secondary winding is electrically connected with a three-phase four-wire output end of the transformer. The three-phase transformer of the three-phase four-wire system power supply system formed by the three-phase symmetrical power supply and the three-phase power supply is used for generating uniformly-distributed twelve-phase discrete phase modulation single-phase voltage, so that the cost is low, the impact resistance is high, high-capacity output can be realized, the operation is stable and reliable, and the practicability is high.

According to the supported platinum-based nano catalyst, the second component metal is one or more than two of nickel, cobalt, copper, ruthenium, palladium, iridium and gold, and the molar ratio of platinum to the second component metal is 10: 1-1: 3; the total mass of the platinum and the second component metal in the catalyst accounts for 20-60% of the total mass of the catalyst. The preparation method of the catalyst comprises the following steps: dipping a prepared precursor solution, reducing, washing and drying. The catalyst is applied as a C1-C5 organic micromolecule electrochemical oxidation catalyst or an oxygen reduction reaction catalyst.