摘要:
In one embodiment, a vortex tube has a gas inlet port, a cold gas outlet port and a hot gas outlet port. A thermoelectric potential generator having hot gas inlet port coupled to the hot gas outlet port of the vortex tube, a cold gas inlet port coupled to the cold gas outlet port of the vortex tube, and a thermoelectric element coupled in heat conducting relationship between the cold gas inlet port and the hot gas inlet port to promote the flow of heat/cold through the thermoelectric element from the hot gas flowing into the hot gas inlet port to the cold gas flowing through the cold gas inlet port. In another, a compressed gas source, a thermoelectric element having first and second sides, and an expansion nozzle are coupled in series. The expansion nozzle is coupled between the compressed gas source and the first side. The thermoelectric element includes an electrical output port.
摘要:
An electrical generator includes a passageway having an input port and at least one output port and at least one resonator for converting acoustic vibrations established in the passageway into mechanical vibrations of the resonator. The resonator is oriented adjacent at least one output port. A mechanical-to-electrical transducer is coupled to the resonator for generating electricity in response to the mechanical vibrations.
摘要:
A combustion-powered fastener-driving tool includes a combustion-powered power source, at least one fan for associated with the power source, at least one temperature sensing device in operational proximity to the power source and a control system operationally associated with the power source and connected to the at least one fan and at least one temperature sensing device for adjusting the length of time for energizing the at least one cooling fan as a function of power source temperature sensed by the at least one temperature sensing device.
摘要:
A combustion tool has a housing with an air intake end and an opposite bumper end, a combustion-powered power source in the housing including a cylinder encircling a reciprocating piston associated with a driver blade, and having at least one air port located at the bumper end below the piston. At least one air intake is located adjacent the air intake end and is provided with an air filter. At least one air passageway is provided in fluid communication with the at least one air port and in operational relationship with the air filter.
摘要:
A constant volume metering chamber and valve assembly for use with a pressurized fluid supply containing a fluid is described for use in a power fastening tool. The assembly includes a first spring-biased valve and a second spring-biased valve. There is a metering chamber having an inlet and an outlet, so that the first spring-biased valve controls the inlet and the second spring-biased valve controls the outlet. An actuator assembly operates causes the first and second spring-biased valves to move in either a first valve sequence or a second valve sequence. The first valve sequence includes engaging the first spring-biased valve with the inlet, preventing flow of the fluid from the fluid supply into the metering chamber, followed by disengaging the second spring-biased valve from the outlet, allowing flow of the fluid from the metering chamber. The second valve sequence includes engaging the second spring-biased valve the said outlet, preventing flow of the fluid from the metering chamber, followed by disengaging the first spring-biased valve from the inlet, allowing flow of the fluid from the fluid supply into the metering chamber, such that fluid is prevented from flowing freely from the pressurized fluid supply through the inlet and the outlet of the metering chamber.
摘要:
A combustion powered tool has a self-contained internal combustion power source constructed and arranged for creating a combustion for driving a driver blade to impact a fastener and drive it into a workpiece. The tool includes a housing constructed and arranged to enclose the power source, a combustion chamber defined at an upper end of the housing and a cylinder disposed be in fluid communication with the combustion chamber. A valve member is disposed to periodically close the combustion chamber. A piston is associated with the driver blade and is configured for reciprocal movement within the cylinder between a start position and a driving position. Also included on the tool is a nosepiece having a workpiece contact element configured for contacting a workpiece. The workpiece contact element is movable relative to the nosepiece, and upon such contact, the movement of the workpiece contact clement causes the valve member to close the combustion chamber. A delay apparatus is engageable with the workpiece contact element and the linkage for delaying the opening of the combustion chamber by the valve member until the piston returns to the start position after driving the fastener.
摘要:
A combustion chamber assembly for use in a combustion-powered fastener driving tool, includes a cylinder body, a reciprocating probe assembly slidably disposed relative to the cylinder body between a first, extended position and a second, retracted position, and at least one shock-absorbing member operationally associated with at least one of the cylinder body a n d the probe assembly for reducing shock load generated by the tool during combustion and transmitted between the probe assembly and the cylinder body. In another embodiment, a single spring disposed between the probe assembly and the cylinder body is configured for biasing the probe assembly into the first position.
摘要:
A combustion-powered fastener-driving tool includes a combustion-powered power source, at least one fan for associated with the power source, at least one temperature sensing device in operational proximity to the power source and a control system operationally associated with the power source and connected to the at least one fan and at least one temperature sensing device for adjusting the length of time for energizing the at least one cooling fan as a function of power source temperature sensed by the at least one temperature sensing device.
摘要:
A combustion powered tool having a self-contained internal combustion power source constructed and arranged for creating a combustion for driving a driver blade to impact a fastener and drive it into a work piece includes a housing constructed and arranged to enclose the power source, a combustion chamber defined at an upper end of the housing, a cylinder disposed in the housing to be in fluid communication with the combustion chamber, a piston associated with the driver blade and configured for reciprocal movement within the cylinder between a start position located at a first end of cylinder and a driving position located at a second end of the cylinder, a gas control device for periodically opening the combustion chamber to atmosphere, and a delay apparatus connected to the gas control device for delaying the opening of the combustion chamber until the piston returns to the start position after driving the fastener.
摘要:
A magazine for a nail-driving tool, which may be pneumatically powered or combustion-powered, is arranged to store a plurality of plural nail strips in side-by-side relationship. A spring-biased mechanism is used to bias the stored strips toward a side rail. Being movable along a frame between an advanced position and a retracted position, a feeding member in the retracted position engages the shank of an endmost nail of the stored strip nearest to the side rail. A negator spring mechanism biasing the feeding member toward the advanced position includes a leaf spring arranged to be longitudinally pulled between the nail heads of the stored ship nearest to the side rail and the nail heads of the next strip when the feeding member is moved from the advanced position into the retracted position. The feeding member has a wedging portion arranged to push between some of the nail shanks of the stored strip nearest to the side rail of the magazine and some of the nail shanks of the next strip and to lead the leaf spring when moved from the advanced position into the retracted position and a rail-engaging portion arranged to push between the side rail and some of the nail shanks nearest to the side rail when moved similarly. In an operative position, in which it can be releasably latched, a biasing member bears against the nearest strip. A floor member can be adjustably positioned. When latched, the biasing member latches the floor.