The present invention concerns an electric module comprising a housing (100) containing a plurality of battery cells, at least partially submerged in a dielectric fluid (140), having a liquid phase and having a boiling temperature at a reference pressure of between -40°C and 80°C, characterised in that it further comprises a deformable balloon (160) inside the module (1), connected to a reference pressure, such that the balloon compensates for variations in the internal gas and liquid volumes in order to prevent operation at a pressure lower than the reference pressure and maintain a pressure that is higher than the reference pressure by ensuring that the liquid volume of the dielectric fluid (140) is equal to the free internal volume of the module (1) minus the volume of the inflated balloon (160).
H01M 10/651 - Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
H01M 10/6569 - Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
H01M 2/20 - Current-conducting connections for cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
2.
SYSTEM FOR COOLING AT LEAST ONE ELECTRICAL MODULE COMPRISING A PLURALITY OF BATTERY CELLS IMMERSED IN A DIELECTRIC FLUID
The invention relates to a system for cooling at least one electrical module comprising a plurality of battery cells immersed in a dielectric fluid. The system further comprises an expansion vessel connected to the volume of said dielectric fluid and having a gas chamber filled with air at controlled pressure.
Gear pump for circulating a fluid, in particular a coolant, comprising a pump body, a space for circulating said fluid (808) being provided in the body of the pump, a first gear (5) and a second gear (6) meshing with each other, and a pump housing (1) defining the space for circulating the fluid. The pump comprises a low pressure chamber (210) which connects to a first intake port (350) and also to a second pressurisation port (351).
F04C 2/08 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
F04C 2/18 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
F04C 15/06 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
The present application relates to a positive-displacement machine having scrolls, comprising a fixed first scroll structure (2) cooperating with a second scroll structure (3) that moves according to an orbital movement relative to said first structure (2), the machine comprising an annular axial stop (220) that comes into sliding contact against the outer frontal surface of said moving second scroll structure. Said machine further comprises a washer (9) interposed between said annular axial stop (220) and said frontal surface, said washer (9) being made of a metal/polymer composite material with a layer of polymer of a thickness of at least 40 microns, said washer having at least one pocket (222) created in said layer of polymer, said pocket (222) communicating with at least one pressurizing passage.
F01C 1/02 - Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
Scroll-type positive-displacement machine comprising: a first, fixed structure (2) formed by a first transverse disk-shaped end plate (2001), of which one of the surfaces forms a scroll base from which rises a wall defining a first scroll (2002), said end plate (2001) having a first central orifice (407), a second, moving structure (3) formed by a second transverse disk-shaped end plate (3001), of which one of the surfaces forms a scroll base from which rises a wall defining a second scroll (3002), the thickness of the wall of each of said scrolls (2002, 3002) varying between a constant nominal thickness over an intermediate portion that extends over more than one turn, and a reduced thickness at the level of said upper indentations (409, 313) in a central end portion extending between 60° and 120° from the inner end of the scroll, said reduced thickness being less than 50% of said nominal thickness.
F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
6.
VOLUMETRIC EXPANSION MACHINE FOR A RANKINE CYCLE, AND CONTROL METHOD
The present invention concerns a volumetric expansion machine for a Rankine cycle, comprising a temperature sensor integrated into an expansion zone (316) comprising at least one cavity, in which movable means are arranged to drive a drive shaft (313), and a pressure sensor arranged downstream from the expansion zone (316), said sensors delivering an electric signal used by a computer controlling the state of said bypass valve (315) controlling the circulation of fluid in a bypass channel formed between a high-pressure inlet zone (314) for a pressurised working fluid (308) connected to the inlet port and a low-pressure exhaust zone (317) comprising the transmission between the movable means and the drive shaft (313) and connected to the exhaust port.
The present invention concerns a Rankine-cycle piston expansion machine, comprising an outer body having a discharge opening and inside which the following are housed: - a cylinder head (800) defining, with said outer body, a high-pressure inlet area for a pressurised working fluid, - an expansion area comprising at least one cavity, in which a piston is able to move in order to drive a drive shaft (1), characterised in that said outer body is formed from two hollow parts (100, 200) only, - a casing (100) that has a passage for said drive shaft (1) and - a cylinder-head cover (200), forming a complementary sealed hollow enclosure, having an inlet opening (20) - said cylinder head (800) being housed at least partially inside said cylinder-head cover (200) - the casing (100) and the cylinder-head cover (200) being assembled by complementary joining surfaces (101, 201) situated outside said high-pressure inlet area.
The present invention relates to an expansion machine (0) comprising an inlet region (22) having an intake port for a pressurised working fluid, the fluid being made up of a main component in the gaseous phase under nominal operating conditions, filled with a lubricant component in the liquid phase. The high pressure area is made up of the inlet region (22) fed directly by the pressurised working fluid. The bypass circuit is in contact with the expansion area for transferring heat between the working fluid flowing in the bypass circuit and the working fluid contained in the expansion area, to form a pre-heating means (15). The inlet region (22) has: o at least a first internal opening emerging into an expansion area and o a second internal opening emerging into the bypass circuit, controlled by the valve (9).
F01D 25/10 - Heating, e.g. warming-up before starting
F01K 7/36 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing typeUse of steam for feed-water heating the engines being of positive-displacement type
F01B 27/04 - Starting of machines or engines of reciprocating-piston engines by directing working-fluid supply, e.g. by aid of by-pass steam conduits
The present invention relates to a bypass valve (2) for regulating fluid flow through a bypass channel (15) in parallel with the expansion zone (14) of an expander (1) of a waste heat recovery system, comprising: - a valve body (22), - a sealing member (21), - and an actuator (23) attached to said valve body (22) and configured to actuate said sealing member (21). The valve is a two-way valve and the sealing member (21) controls the fluid flow in said bypass channel (15).
F01D 25/10 - Heating, e.g. warming-up before starting
F01K 7/36 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing typeUse of steam for feed-water heating the engines being of positive-displacement type
F01B 27/04 - Starting of machines or engines of reciprocating-piston engines by directing working-fluid supply, e.g. by aid of by-pass steam conduits
10.
IMPROVED INTAKE SYSTEM FOR AN AXIAL EXPANSION MACHINE
The present invention relates to an expansion machine (4) having pistons, which includes an admission cylinder head (9), an expansion area (21), a rotating valve (11) configured such that the rotation thereof results in, consecutively: closing said intake channel (20) and establishing communication between the intake channel (20) and the dispensing channel (18), which achieves the intake of pressurized vapor into the expansion area (21), said expansion machine (4) further including a system for applying pressure to the sealing body (13) such as to maintain the sealing body (13) in sealing engagement against the expansion area (21), including a controlled pressure chamber (22) extending between the sealing body (13) and a wall (15; 25) rigidly connected to the shaft (16), and a return means connected to the shaft (16), and configured such that a compressive force is applied to the sealing body (13), said controlled pressure chamber (22) being arranged such that the closing body (13) is essentially subjected to the force applied by the return means and at the pressure present in said controlled pressure chamber (22).
The present invention concerns a system for converting thermal energy from a combustion engine (7), comprising a closed circuit (1) for circulating a working fluid, comprising a first heat exchanger (3), an expansion machine (4), a second heat exchanger (5), and a pump (2), said expansion machine (4) being designed such that, during expansion of the fluid following the evaporation of same in the first heat exchanger (3) and the keeping of same under pressure by means of the pump (2), it moves a mobile element (14) by means of a lubricated mechanical link disposed in a housing (17), characterised in that the lubricant is miscible with the working fluid when said working fluid is in the liquid state.
F01B 31/10 - Lubricating arrangements of steam engines
F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
F02G 5/00 - Profiting from waste heat of combustion engines, not otherwise provided for
F01M 5/00 - Heating, cooling, or controlling temperature of lubricantLubrication means facilitating engine starting
F01M 13/04 - Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
F01M 11/00 - Component parts, details, or accessories, not provided for in, or of interest apart from, groups
The invention proposes an electricity producing assembly comprising a steam engine coupled to an electric generator (19), the steam engine comprising at least one cylinder (11) and piston (12) assembly (10), a mobile coupling (13) between the cylinder (11) and a drive shaft (14) of the electric generator (19), and a timing device (15) comprising a timing bottom part (16) controlled by a cam mechanism, and a timing top part (17) comprising at least one valve and connected to the bottom part (16) by at least one valve operating stem, and an oil-based lubricating system (201), characterized in that only the timing bottom part (16) is served by the oil-based lubricating system (201).
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (France)
EXOES (France)
Inventor
Memponteil, Alain
Bengaouer, Alain
Kientz, Thiébaut
Abstract
The invention relates to a domestic device for the cogeneration of electricity and heat, suitable for extracting heat energy from a biomass boiler, said biomass boiler comprising: a furnace; a chamber in contact with the furnace; and substantially tubular cavities arranged close to the outer periphery of the chamber, and said device comprising: a first heat exchanger forming an evaporator capable of being inserted in said chamber of said biomass boiler; an electric generator capable of generating electricity from a driving thermodynamic cycle, said electric generator being connected to said evaporator, a first closed fluid circuit feeding a fluid released from said evaporator toward the inlet of said electric generator, and said fluid released from said electric generator toward the inlet of said evaporator; a second heat exchanger, in contact with said substantially tubular cavities located on the outer periphery of the chamber of said biomass boiler; and a second fluid circuit forming a domestic heating circuit, said second heat exchanger being connected to said domestic heating circuit, said evaporator having, opposite the furnace, a surface for capturing heat radiation, and having a thermally insulating layer on the outer periphery of said evaporator, said evaporator forming a heat screen between the radiation from the furnace and the walls of the chamber, said surface including a tube system forming a circulation path for said fluid.
F01K 17/02 - Use of steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
F24H 1/00 - Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
F24H 1/26 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water mantle surrounding the combustion chamber or chambers the water mantle forming an integral body
F24H 1/43 - Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
12 - Land, air and water vehicles; parts of land vehicles
42 - Scientific, technological and industrial services, research and design
Goods & Services
Machines for converting a heat source into electrical, mechanical or thermal energy; Heat engines (parts of machines) using steam for the production of electricity and heat; Heat engines (parts of machines) using steam for the production of renewable electricity and heat; Heat engines for converting heat derived from vehicle exhausts, solar radiation, fuel combustion and industrial fumes into electricity or mechanical or thermal energy; Generating sets; Heat exchangers (parts of machines); Alternators; Motors and engines for air vehicles; Motors for boats. Apparatus and instruments for conducting, switching, transforming, storage, regulating or controlling electricity; Electric and electronic apparatus and instruments for regulating and controlling units for the production of electrical, mechanical or thermal energy; Electric and electronic apparatus and installations for energy conversion; Heat regulating apparatus; all of the aforesaid goods excluding computer cooling systems or components for use in computer cooling systems. Warming apparatus, Steam generating, Air conditioning, Ventilating, Water supply; Heating boilers; Water heaters; Heat exchangers, not parts of machines; Apparatus for regenerating heat, for conversion thereof into electrical, mechanical or thermal energy; Apparatus for regenerating heat contained in vehicle exhausts, for conversion thereof into electrical, mechanical or thermal energy; all of the aforesaid goods excluding computer cooling systems or components for use in computer cooling systems. Motors for land vehicles; vehicles for use on land. Scientific and technological evaluations, appraisals and research provided by engineers in the field of renewable energy, energy regeneration, production of mechanical energy, electricity and heat, conversion of heat into energy, reclamation of heat losses from vehicle exhausts; Research and development for others in the field of renewable energy, energy regeneration, production of mechanical energy, electricity and heat, conversion of heat into energy, reclamation of heat losses from vehicle exhausts; Technical project studies in the field of renewable energy, energy regeneration, production of mechanical energy, electricity and heat, conversion of heat into energy, reclamation of heat losses from vehicle exhausts; Analysis of the energy performance of buildings; Technical consultancy relating to energy saving, energy regeneration, production of energy and optimisation of energy, conversion of heat into energy, reclamation of heat losses from vehicle exhausts.
