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A shut-off valve for pressurized fluids in an air cooling/heating apparatus that includes at least one condenser and at least one fluid evaporator communicating with each other by a pipe. The valve includes two ducts each containing a restrictor coaxially formed with a capillary designed to cause ra

A shut-off valve for pressurized fluids in an air cooling/heating apparatus that includes at least one condenser and at least one fluid evaporator communicating with each other by a pipe. The valve includes two ducts each containing a restrictor coaxially formed with a capillary designed to cause rapid expansion of the fluid when it emerges from the capillary, thus allowing expansion of the fluid in either the heating or cooling mode. The valve further includes a duct for sampling the pressurized fluid before expansion during operation in either the heating or cooling mode.

대표청구항 ▼

A shut-off valve for pressurized fluids in an air cooling/heating apparatus that includes at least one condenser and at least one fluid evaporator communicating with each other by a pipe. The valve includes two ducts each containing a restrictor coaxially formed with a capillary designed to cause ra

A shut-off valve for pressurized fluids in an air cooling/heating apparatus that includes at least one condenser and at least one fluid evaporator communicating with each other by a pipe. The valve includes two ducts each containing a restrictor coaxially formed with a capillary designed to cause rapid expansion of the fluid when it emerges from the capillary, thus allowing expansion of the fluid in either the heating or cooling mode. The valve further includes a duct for sampling the pressurized fluid before expansion during operation in either the heating or cooling mode. e hydrocarbon group has up to 10 carbon atoms. 8. A non-aqueous electrolyte comprising, an aluminum halide and a quaternary ammonium halide in a non aqueous solvent, where the non aqueous solvent is an organic compound comprising a donor number of not larger than 5, and a molar ratio of the quaternary ammonium halide to the aluminum halide being not larger than 1:1; and wherein the organic compound is a member selected from the group consisting of 1,2-dichloroethane, 1,2-dichlorobenzene, 1,3-dichlorobenzene, and mixtures thereof. 9. The non aqueous electrolyte of claim 8, wherein a concentration of the aluminum halide in the non aqueous electrolyte is in the range of from 0.1 to 2.0 moles/liter of the electrolyte. 10. The non aqueous electrolyte of claim 8, wherein the aluminum halide is of the formula AlX, wherein X represents Cl, Br, or I. 11. The non aqueous electrolyte of claim 8, wherein the aluminum halide is present in an amount of 0.1 to 10.0 moles/liter of the electrolyte. 12. The non aqueous electrolyte of claim 8, wherein the quaternary ammonium halide is of the formula: wherein R1, R2, R3, and R4 independently represent a hydrocarbon group and Y-- is a counter ion selected from the group consisting of Cl--, Br--, or I--. 13. The non aqueous electrolyte of claim 12, wherein the hydrocarbon group has up to 10 carbon atoms. 14. A non-aqueous electrolyte comprising, an aluminum halide and a quaternary ammonium halide in a non aqueous solvent, where the non aqueous solvent is an organic compound comprising a donor number of not larger than 5, and a molar ratio of the quaternary ammonium halide to the aluminum halide is in the range of 0.5:1 to 1:1, and wherein the organic compound is a member selected from the group consisting of 1,2-dichloroethane, 1,2-dichlorobenzene, 1,3-dichlorobenzene, and mixtures thereof. 15. The non aqueous electrolyte of claim 14, wherein the aluminum halide is of the formula AlX, wherein X represents Cl, Br, or I. 16. The non aqueous electrolyte of claim 14, wherein the aluminum halide is present in an amount of 0.1 to 10.0 moles/liter of the electrolyte. 17. The non aqueous electrolyte of claim 14, wherein the quaternary ammonium halide is of the formula: wherein R1, R2, R3, and R4 independently represent a hydrocarbon group and Y-- is a counter ion selected from the group consisting of Cl--, Br--, or I--. 18. The non aqueous electrolyte of claim 17, wherein the hydrocarbon group has up to 10 carbon atoms. sisting of a nonwoven material and a needle felt, and being cut to a predetermined size for said electrode or recombination element, said predetermined size being defined by edges including an edge area for attachment of a current tapping tab; wherein, to alleviate failures of said electrode or recombination element due to possible metallized fibers projecting from edge areas of the framework plate and possible growth of dendrites, substantially all remaining edge areas of said framework plate outside of said edge area for attachment of a current tapping tab, are characterized by compression of edge areas thereof relative to surfaces of said frame work plates outside said edge areas; and exterior electrically non-conductive sealing of fibers protecting in said edge areas of the framework plate comprises a molten plastic of the synthetic fibers. 3. A porous framework plate for an electrode or recombination element in an electric accumulator, comprising: a piece of metallized fiber material made of synthetic fibers which are intrinsically electrically non-conductive, have a metal coating and have a melting point that is lower than a melting point of the metal coating, said material being selected from the group consisting of a nonwoven material and a needle felt, and being cut to a predetermined size for said electrode or recombination element, said predetermined size being defined by edges including an edge area for attachment of a current tapping tab; wherein, to alleviate failures of said electrode or recombination element due to possible metallized fibers projecting from edge areas of the framework plate and possible growth of dendrites, substantially all remaining edge areas of said framework plate outside of said edge area for attachment of a current tapping tab, are characterized by at least one of: electrically non-conductive sealing of fibers of said metallized fiber material by melting of said fibers, but not said metal coating, only in said edge areas; and electrically non-conductive embedding of projecting fibers in an outer coating which is disposed only in edge areas of said framework plates.