Abstract: A method and system for metering proppant discharged from a storage container is disclosed. In certain embodiments, a method may comprise loading a known amount of a first proppant type into a storage container, detecting proppant at or adjacent to a discharge outlet of the storage container via one or more sensors coupled to the storage container, operating a metering device at a predetermined speed, wherein the metering device may be coupled to the discharge outlet of the storage container, and wherein the metering device may comprise one or more pockets for receiving the first proppant type. In certain embodiments, the method may further comprise dispensing a known amount of the first proppant type from the storage container via the metering device, wherein an encoder coupled to the metering device may emit pulses during the dispensing.

Abstract: A method and system for metering proppant discharged from a storage container is disclosed. In certain embodiments, a method may comprise loading a known amount of a first proppant type into a storage container, detecting proppant at or adjacent to a discharge outlet of the storage container via one or more sensors coupled to the storage container, operating a metering device at a predetermined speed, wherein the metering device may be coupled to the discharge outlet of the storage container, and wherein the metering device may comprise one or more pockets for receiving the first proppant type. In certain embodiments, the method may further comprise dispensing a known amount of the first proppant type from the storage container via the metering device, wherein an encoder coupled to the metering device may emit pulses during the dispensing.

Abstract: A rotary engine rotor (10) comprising three rotor flanks (12) arranged in a generally equilateral triangle shape, each rotor flank (12) having a leading edge (16) and a trailing edge (17), an elongate lip (21) being provided on the leading edge (16) of at least one of the rotor flanks (12), the elongate lip (21) extending the full axial length of the rotor flank (12). In another aspect, at least one rotor flank (12) comprises a cavity having a leading edge and a trailing edge, and at least a portion of the base of the cavity proximal to a trailing edge thereof is curved outwardly.

Abstract: A method and system for metering proppant discharged from a storage container is disclosed. In certain embodiments, a method may comprise loading a known amount of a first proppant type into a storage container, detecting proppant at or adjacent to a discharge outlet of the storage container via one or more sensors coupled to the storage container, operating a metering device at a predetermined speed, wherein the metering device may be coupled to the discharge outlet of the storage container, and wherein the metering device may comprise one or more pockets for receiving the first proppant type. In certain embodiments, the method may further comprise dispensing a known amount of the first proppant type from the storage container via the metering device, wherein an encoder coupled to the metering device may emit pulses during the dispensing.

Abstract: An apparatus, system, and method for receiving proppant into a storage container is disclosed. In certain embodiments, an apparatus for receiving proppant into a storage container may comprise a housing that further comprises a first planar surface having an outlet port and a second planar surface substantially perpendicular to the first planar surface, the second planar surface having a tubular slot formed therein. In certain embodiments, the apparatus comprises a diverter plate coupled to the housing and adjacent the outlet port, the diverter plate being oriented at an acute angle to the first planar surface of the housing.

Abstract: A method and system for metering proppant discharged from a storage container is disclosed. In certain embodiments, a method may comprise loading a known amount of a first proppant type into a storage container, detecting proppant at or adjacent to a discharge outlet of the storage container via one or more sensors coupled to the storage container, operating a metering device at a predetermined speed, wherein the metering device may be coupled to the discharge outlet of the storage container, and wherein the metering device may comprise one or more pockets for receiving the first proppant type. In certain embodiments, the method may further comprise dispensing a known amount of the first proppant type from the storage container via the metering device, wherein an encoder coupled to the metering device may emit pulses during the dispensing.

Abstract: A rotary engine rotor (10) comprising three rotor flanks (12) arranged in a generally equilateral triangle shape, each rotor flank (12) having a leading edge (16) and a trailing edge (17), an elongate lip (21) being provided on the leading edge (16) of at least one of the rotor flanks (12), the elongate lip (21) extending the full axial length of the rotor flank (12). In another aspect, at least one rotor flank (12) comprises a cavity having a leading edge and a trailing edge, and at least a portion of the base of the cavity proximal to a trailing edge thereof is curved outwardly.

Abstract: A rotary engine rotor (10) comprising three rotor flanks (12) arranged in a generally equilateral triangle shape, each rotor flank (12) having a leading edge (16) and a trailing edge (17), an elongate lip (21) being provided on the leading edge (16) of at least one of the rotor flanks (12), the elongate lip (21) extending the full axial length of the rotor flank (12). In another aspect, at least one rotor flank (12) comprises a cavity having a leading edge and a trailing edge, and at least a portion of the base of the cavity proximal to a trailing edge thereof is curved outwardly.