摘要:
The invention provides an efficient and versatile system for generating and displaying a portrait or other graphic image from an array of variously sized points of light, including the following embodiments: a basic pinhole portrait; a modified array with variable apertures; a secondary display of pinhole portrait images utilizing fiber optics; and a secondary display of pinhole portrait images utilizing reflected sunlight.
摘要:
An interface circuit for reading data to a programmable message display is provided wherein input power is reduced through sampling techniques and circuit complexity is reduced through multiplexing. Stable operation is providing in the presence of noise when the interface circuit is coupled to a device, such as a programmable controller. The circuit includes a plurality of input circuits which receive and condition a like plurality of parallel input data signals. A reference signal generating circuit is responsive to control signals from a microprocessor of the display to provide reference signals. A like plurality of comparator circuits are coupled to their responsive input circuits and to the reference signal generating circuit. Different banks of the comparator circuits sequentially compare the conditioned input signals with the reference signals. Isolation circuits are coupled to the outputs of the comparator circuits. In particular, each of the isolation circuits is coupled to the output of a single comparator circuit of each of the banks of comparator circuits to provide isolated output signals to the microprocessor which correspond to the level of the input data signals received by the input circuits.
摘要:
Dielectric fluids are disclosed which comprise about 20 to 95% of a non-halogenated organic ester which is liquid between -20.degree. C. and 150.degree. C. and which has a dissipation factor of less than about 10% at 100.degree. C., and about 5% to 80% of a non-halogenated, aromatic hydrocarbon or ether, which is soluble in the ester, has 1 to 2 rings, and has a dissipation factor of less than about 10% at 100.degree. C. The preferred dielectric fluid is about 75 to 90% diisononyl phthalate and about 10 to 25% diphenyl oxide. An anti-oxidant and/or an additive to resist the effects of corona (partial discharges) are preferably included in the dielectric fluid. A capacitor containing a paper, film, or composite of these, impregnated with the dielectric fluid, is also disclosed.
摘要:
Provided are an apparatus for filtering water from and oil and gas well and a method of filtering water from an oil and gas well. The filtration unit utilizes gravity fed filtration that is open to the environment.
摘要:
A regeneration device for use in an exhaust treatment system is disclosed. The regeneration device has a first housing with a plurality of passages configured to receive coolant and injection fluid. A second housing is secured to the first housing and configured to receive coolant and injection fluid. The second housing has at least one cooling recess annularly disposed within the second housing to receive and circulate coolant in proximity to a tip end of the second housing.
摘要:
A variable valve actuation system is disclosed for providing exhaust to at least one component downstream of an engine. The system includes a supply of low pressure fluid, an engine fluid sump, and an exhaust valve disposed in an engine cylinder. The system also includes a hydraulic actuation system operably connected to the exhaust valve of the engine cylinder and a braking control valve operably connected to the hydraulic actuation system. The system further includes a device for accumulating fluid and a device for fluidly coupling the hydraulic actuation system to the accumulating device.
摘要:
An exhaust treatment device for a combustion system is disclosed. The exhaust treatment device may have a housing, and an injector disposed within the housing to deliver an injection fluid into a flow of exhaust. The exhaust treatment device may also have at least one fluid supply passage that is disposed within the housing and being in fluid communication with the injector to supply the injector with injection fluid. The exhaust treatment device may further have at least one purge passage disposed within the housing and in fluid communication with the injector to supply the injector with a purge fluid. The exhaust treatment device may additionally have a first valve element that is mounted to the housing and disposed at an entrance of the at least one purge passage The first valve element may be configured to provide a unidirectional flow of purge fluid to the at least one purge passage.
摘要:
A method of purging fuel supply components for a combustion chamber of a regeneration assembly is disclosed. A regeneration cycle is performed during which fuel is supplied from a fuel source to the combustion chamber with fuel supply components including a fuel supply circuit and at least one fuel injector unit. At least a first purging cycle is initiated to purge residual fuel from the fuel supply components. During the purging cycle, a flow of purging gas is directed to the at least one fuel injector unit to purge residual fuel from the at least one fuel injector unit. Also during the purging cycle, a flow of purging gas is directed to the fuel supply circuit to purge at least a portion of the fuel in the fuel supply circuit toward the fuel source.