摘要:
The present disclosure provides a sealing ring assembly having a sealing ring and a reinforcement, configured to seal a high-pressure region from a lower pressure region of a piston and cylinder device. The sealing ring may be segmented, and a metal layer, wire, or other reinforcement may be affixed to the ring. The reinforcement is placed into tension against the sealing ring, which is correspondingly placed into compression. The composite structure of a relatively brittle sealing ring and reinforcement provides for reduced tensile loads in the sealing ring, thus extending life and reducing the likelihood of failure. The brittle portion of the sealing ring assembly may include a polymer or ceramic such as graphite, which is relatively less strong in tension than compression.
摘要:
A piston reciprocating in a cylinder includes a piston top portion receiving pressure from working fluid in the cylinder; a skirt portion opposed to an inner surface of the cylinder; an accumulation chamber partition which is provided in an inner space of the skirt portion in non-contact manner as a structure independent from the skirt portion, partitions the inner space of the skirt portion, and forms an accumulation chamber into which gas in a working space in the cylinder is introduced; and a gas discharging hole which is provided in the skirt portion, and discharges gas in the accumulation chamber to form a gas bearing between the cylinder and the piston.
摘要:
An apparatus for converting between reciprocal piston motion and rotary shaft motion. A unique H-shaped piston rod configuration and corresponding cylinder assembly for improving the efficiency of internal and external combustion engines. A Stirling engine having improved efficiency due to the use of heat exchangers that are integral with the cylinder assemblies. A Stirling engine employing a novel means for rapidly varying power output.
摘要:
A fin structure for cooling cold-heat refrigerant and another fin structure (slender grooves or the like) constituting a working gas flow passage are formed on the outer and inner surfaces of the heat exchange housing constituting a low-temperature heat exchanger by a lost was casting method so that these fin structures are formed integrally with the heat exchange housing. In addition, a fin structure and another fin structure constituting a working gas flow passage are integrally formed on the outer and inner surfaces of a high-temperature side heat exchanger (heat rejector). Accordingly, the heat exchangers of a Stirling machine can be manufactured in a simple structure by the lost wax casting method, whereby the workability can be enhanced and the manufacturing cost can be reduced. In addition, the precision for the workability can be enhanced, and the heat exchange efficiency and the reliability can be enhanced.
摘要:
A rechargeable energy cell providing a thermal energy output during discharge, and which recharges electrically. The cell contains chemical reactants and reactant product. The reactants are controllably combined in a reaction portion of the cell to produce the reactant product and the thermal energy output. In the preferred embodiment, the reaction portion is designed to facilitate heat transfer. The reactant product is electrolyzed into the reactants, which are separated and stored in the cell, by at least one electrode in operational communication with the reactant product. The electrode has a hollow internal cavity, and a portion of the electrode functions as a valve to convey one of the reactants electrolyzed by the electrode into the cavity without conveying the reactant product into the cavity. The system is fully reversible and results in energy densities which are over 1 kilowatt-hour per Kilogram of cell weight. The cell is also capable of extremely high specific power rates of over 2 kilowatts per Kilogram.
摘要:
Gas displacement volumes of a high temperature chamber and a middle temperature chamber in a high temperature portion of a hot gas machine are different. Alternatively, a gas displacement volume of a low temperature chamber and a middle temperature chamber in a low temperature portion are different.
摘要:
A multifuel hybrid heat engine having an internal combustion system and an external combustion system wherein a coaxial array of three tappet valves controls the expansion from the external combustion system to the internal combustion system and the drive of the common piston member which cooperates with a working cylinder and another cylinder coaxial therewith and received within the working cylinder. The piston member with its inner and outer pistons cooperates with these cylinders to define not only upper cylinder motors but also lower cylinder motors and air compressors for scavenging the air supply.
摘要:
A two piston Stirling engine which includes a heat exchanger arrangement placing the cooler and regenerator directly adjacent the compression space for minimal cold duct volume; a sealing arrangement which eliminates the need for piston seals, crossheads and piston rods; and a simplified power control system.
摘要:
The invention relates to a seal for a piston and a cylinder of a double-acting hot gas engine or other applications in which piston rings of plastic materials should be used.A duct having low resistance against gas flow is provided between the high pressure of the seal and the bottom of a groove for the piston ring. The resistance against gas flow between the high pressure side and the piston ring along the piston and cylinder walls is substantially greater. Thus the piston ring will immediately be forced into a sealing position when the engine is pressurized.
摘要:
In a Stirling cycle engine having a plurality of working gas charges separated by pistons reciprocating in cylinders, the total gas content is minimized and the mean pressure equalization among the serial cylinders is improved by using two piston rings axially spaced at least as much as the piston stroke and by providing a duct in the cylinder wall opening in the space between the two piston rings and leading to a source of minimum or maximum working gas pressure.