Abstract:
Improvements for a particular internal combustion engine using variable compression ratio and fuel charge (VCRC engine) to one of two combustion chambers are presented. The improvements involve adding another second combustion chamber (Fig. 3; 211) for mixing products of the first combustion with engine air and refining the insulation of engine heat in the engine process (Fig. 2, 3, 4, 5, 6, 7, 8 and 9).
Abstract:
A system and method for controlling the temperature of a process tool uses the vaporizable characteristic of a refrigerant that is provided in direct heat exchange relation with the process tool. Pressurized refrigerant is provided as both condensed liquid and in gaseous state. The condensed liquid is expanded to a vaporous mix, and the gaseous refrigerant is added to reach a target temperature determined by its pressure. Temperature corrections can thus be made very rapiday by gas pressure adjustments. The process tool and the operating parameters will usually require that the returning refrigerant be conditioned and processed for compatibility with the compressor and other units, so that cycling can be continuous regardless of thermal demands and changes.
Abstract:
Improvements for the air supply to internal combustion engine using variable compression ratio and variable fuel supply (VCRC engine; ref. US Patent 6,708,654) are presented. The improvements involve increasing thermal efficiency (401, 501) and/or reducing production of pollutants (291,301) by this engine. The improvements can also be used with other engines that are regulated by fuel supply such as 2-stroke diesel engines. Realizations are in two basic categories; those with mechanical blower only and turbocharged engines.
Abstract:
A system (110) for improving the thermal efficiency of a thermal control loop in which refrigerant after compression and condensation is applied to an evaporator (130) employs a subsidiary counter-current heat exchanger (126) intercepting refrigerant flow to maintain the quality of the refrigerant by exchanging thermal energy between the input flow and the output flow from the evaporator (130). The same principle is effective, with particular advantage when small connections have to be made, in systems using mixed phase media and using the concept of direct energy transfer with saturated fluid.
Abstract:
An internal combustion engine using variable compression ratio and variable fuel supply to one of two combustion chambers is presented. Varying the compression ratio is accomplished by changing the volume of a single combustion chamber (53) with an auxiliary piston (57) that is biased in an open position by spring (58). This, in combination with lean burning, results in a highly efficient prime mover particularly at the low torque outputs needed in passenger car applications. The relationship of compression ratio and fuel feed is varied with engine speed. Burning occurs in two stages, and this results in a clean exhaust. The invention allows very efficient throttling of two-cycle engines to be realized. A concept for supplying air to a two-cycle engine at very good efficiencies is also presented. The combination of these techniques can result in an engine for automotive use that is half the weight of conventional units with a thermal efficiency of 40 % or more at average engine output.
Abstract:
Improvements for a particular internal combustion engine using variable compression ratio and fuel charge (VCRC engine) to one of two combustion chambers are presented. The improvements involve adding another second combustion chamber (Fig. 3; 211) for mixing products of the first combustion with engine air and refining the insulation of engine heat in the engine process (Fig. 2, 3, 4, 5, 6, 7, 8 and 9).
Abstract:
Systems and methods for heat exchange in accordance with the invention define adequately long-interchange distances for two fluids by wrapping a tube containing a first fluid about the wall of an inner cylindrical tank, within a gap formed with a second concentric tank. A second fluid is transmitted in the space defined between the turns of the tube and the two walls, providing effective short length thermal interchange through the tube walls. The tube is in the line contact with both tank walls and the fluids can flow rapidly over an adequately long length, so that high efficiency is provided in a low cost system.
Abstract:
Improvements for the air supply to internal combustion engine using variable compression ratio and variable fuel supply (VCRC engine; ref. US Patent 6,708,654) are presented. The improvements involve increasing thermal efficiency (401, 501) and/or reducing production of pollutants (291,301) by this engine. The improvements can also be used with other engines that are regulated by fuel supply such as 2-stroke diesel engines. Realizations are in two basic categories; those with mechanical blower only and turbocharged engines.
Abstract:
A system and method for controlling the temperature of a process tool uses the vaporizable characteristic of a refrigerant that is provided in direct heat exchange relation with the process tool. Pressurized refrigerant is provided as both condensed liquid and in gaseous state. The condensed liquid is expanded to a vaporous mix, and the gaseous refrigerant is added to reach a target temperature determined by its pressure. Temperature corrections can thus be made very rapiday by gas pressure adjustments. The process tool and the operating parameters will usually require that the returning refrigerant be conditioned and processed for compatibility with the compressor and other units, so that cycling can be continuous regardless of thermal demands and changes.
Abstract:
Systems and methods for heat exchange in accordance with the invention define adequately long-interchange distances for two fluids by wrapping a tube containing a first fluid about the wall of an inner cylindrical tank, within a gap formed with a second concentric tank. A second fluid is transmitted in the space defined between the turns of the tube and the two walls, providing effective short length thermal interchange through the tube walls. The tube is in the line contact with both tank walls and the fluids can flow rapidly over an adequately long length, so that high efficiency is provided in a low cost system.