摘要:
The pesticide 2,2-dimethyl-1,3-benzodioxol-4-yl N-methylcarbamate has been found to be capable of existence in several crystalline forms, which can be identified by their infra red spectra. The form commercially available has been form B but the new form A is superior.
摘要:
The pesticide 2,2-dimethyl-1,3-benzodioxol-4-yl N-methylcarbamate has been found to be capable of existence in several crystalline forms, which can be identified by their infra red spectra. The form commercially available has been form B but the new form A is superior.
摘要:
The exhaust within an exhaust gas recirculation (EGR) system should be purged to allow for access to the components of the EGR system. A system and method for purging the EGR system is provided. The system and method may incorporate an: EGR purge fan, an EGR purge blower, or a turbomachine. The system and method may draw the exhaust out of the EGR system. The system and method may drive the exhaust out of the EGR system.
摘要:
A method of operating a filtration system that filters flue gas, which includes particulate matter and a gaseous pollutant. The filtration system may include a fabric filter, which is cleaned with periodic pulse cleanings, a discharge electrode upstream of the fabric filter, which imparts an electric charge to at least some of the particulate matter before the particulate matter collects on the fabric filter, a sorbent, which is injected into the flue gas upstream of the fabric filter and absorbs at least some of the gaseous pollutant, and a fan, which draws the flue gas through the fabric filter. The filtration system may have a pulse cleaning interval setting that may be manipulated by an operator of the filtration system. The pulse cleaning interval setting may be the time between the pulse cleanings. The method may include the steps of: determining a cost of operating the filtration system at a first pulse cleaning interval setting; determining a cost of operating the filtration system at a second pulse cleaning interval setting; and comparing the cost of operating the filtration system at the first pulse cleaning interval setting with the cost of operating the filtration system at the second pulse cleaning interval.
摘要:
A portion of the exhaust generated by a turbomachine is recirculated through an inlet portion by an exhaust gas recirculation system. The system reduces the level of harmful constituents within the exhaust before the exhaust is recirculated.
摘要:
An electrical connector has an insulating body 30 with longitudinal chambers 45, 46 and 47 running through it. Electrical contact elements 81, 82 and 83 are received one each in the chambers. Each chamber has projections .alpha. and .beta. and each contact element has a rebate 86. Rotation of the contact element in the chamber relative to the body from an initial orientation to a second orientation engages the rebate 86 with the projections .alpha. and .beta. to restrain the elements from longitudinal displacement relative to the body. Projections 50 on the external face of the body 30 can engage an external portion of the contact element when that element is rotated to its second orientation to retain the element from rotating relative to the body. The connector can be a plug or a socket. A corresponding method of assembling an electrical connector is described.
摘要:
A device for chopping bales includes a rotary cutter device (20) mounted for rotation about a substantially horizontal axis. A tumble mechanism (4) supports a bale with its lower part adjacent the cutter device (20) and tumbles or rotates the bale such that an outer layer is removed from the bale and is fed to the cutter device to be comminuted thereby and discharged by the rotation of the cutter device (20). Means (50) is provided to move the bale periodically further away from the cutter device (20).
摘要:
A method of and apparatus for stripping a flash from a blow moulded hollow container in which the container is located at a stripping station with its flash projecting in a predetermined direction and in which a powered stripping tool is driven along a line parallel with, but spaced from, the jointline from which the flash is projecting such that the flash is progressively stripped away from the container along the jointline.
摘要:
A method and system for controlling an exhaust gas recirculation (EGR) system is provided. The method and system may incorporate a device or devices that continuously monitors an exhaust stream for harmful constituents. The method and system may control components of the EGR system based on the concentration of harmful constituents within the exhaust.