33results about How to "Avoid failure mode" patented technology

The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and method relate to removal of the occluding material from the blood vessels as well as other body lumens.

The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and method relate to removal of the occluding material from the blood vessels as well as other body lumens.

A vehicle fuel emissions system includes a fuel tank, a tank pressure sensor indicating a pressure differential between the tank and a port communicating with the atmosphere, a pump for selectively producing vacuum in the tank, and a passage connecting the pump and a pressure sensor air reference port external to the system.

The invention relates to an integrated pilot differential pressure control type automatic reciprocating cylinder. The integrated pilot differential pressure control type automatic reciprocating cylinder comprises a pneumatic control valve module, an air path connecting plate module and a cylinder module, wherein the pneumatic control valve module is connected with the air path connecting plate module through a screw rod, and the air path connecting plate module is connected with the cylinder module through a screw rod; the cylinder module comprises a cylinder rear cover part, a cylinder body part and a cylinder front cover part, wherein the cylinder rear cover part is provided with a rear cover air path and a rear cover pilot air path, and the cylinder front cover part is provided with a front cover air path and a front cover pilot air path; and the integrated pilot differential pressure control automatic reciprocating cylinder further comprises two contact valves, and the two contactvalves are correspondingly assembled and connected with the rear cover pilot air path and the front cover pilot air path. According to the integrated pilot differential pressure type control automaticreciprocating cylinder, a modular design idea is adopted; when the stroke of the cylinder is lengthened, only the length of an air path connecting plate needs to be lengthened; and when the use formof the cylinder is changed, only the design form of the contact valves in a cylinder cover does not change, the integrated pilot differential pressure control type automatic reciprocating cylinder canbe used for changing any cylinder form, and the product diversity is increased.

The invention relates to a method for quantitatively evaluating the safety of a boiler component. The method is characterized in that a mean interval years between boiler shutdown, a mean boiler shutdown time, the boiler shutdown failure consequences and cumulative service life loss of the boiler component are used to quantitatively compute a failure criticality of the boiler component, quantitatively evaluate the safety of the boiler component in use and guide safety supervision and equipment overhaul of the boiler component. The method has the advantages that the safety of the boiler component is quantitatively described by the failure criticality and the proposed overhaul is arranged according to the failure criticality of the boiler component even if the safety of the boiler component is in a supervision and controlled state, which realizes the technical effect of avoiding a fault mode of the boiler component with severe criticality while improving the safety of the boiler component.

A flight control system for an aircraft comprises a set of actuators for controlling the aircraft and a set of flight control computers only made up of a set of duplex type main computers and of at least one backup computer. All the main computers are configured to implement auto-pilot laws for the aircraft. The set of main computers comprises two computers from a first hardware type, configured to control actuators of the set of actuators as per a first tolerance level and two computers from a second hardware type, different from the first hardware type, configured to control actuators of the set of actuators as per a second tolerance level, less stringent than the first tolerance level.

A multiple component hot gas flowing conduit has an elongated, convoluted bellows, an interlock liner, frequency dampers and elastic spacers engaging the dampers and biasing the dampers into respective bellows convolution with no contact of bellows and liner for all operating states of the conduit. Assembly pretension of the interlock liner preferably flattens out the elastic spacers permitting assembly of the liner into the bellows and upon relaxation of the liner, the spacers extend radially outwardly to engage and bias the dampers into the bellows. The bellows is convoluted throughout, or may have convoluted ends with an integral smooth-wall tube therebetween. Components are isolated from abrasion against one another.

The invention discloses a retracting control system of an aircraft landing gear. An emergency oil discharging valve is connected onto a working pipeline at the downstream side of a solenoid valve; and in an emergency working process, an oil inlet of the emergency oil discharging valve is sealed. According to the retracting control system, a fault mode that emergency releasing of the landing gear is invalid, caused by the fact that the retracting solenoid valve is clamped in a retracting position, is avoided from the design; changes of the retracting control system are very small, and parts below the emergency oil discharging valve are not changed; new onboard equipment is not additionally arranged; the implementation cost of an improvement plan on an aircraft is small; and the improvement plan is easy to implement on the aircraft.

An adapter for interconnecting a surgical end effector to a surgical device includes: a drive shaft; and a load sensing device disposed about the draft shaft, the load sensing device configured to measure strain imparted on the drive shaft. The load sensing device includes a housing having: a tubular portion having a first end and a second end and defining a cavity therebetween; a first end cap disposed at the first end, the first end cap having a first opening; and a second end cap disposed at the second end, the second end cap having a second opening. The load sensing device also includes a conductive element wrapped at least partially about the tubular portion.

A computer based method for a reusable functional failure test for a specific technical system, e.g., a traffic light system is provided. The method avoids inconsistencies in the functional failure test and reuses items of the respective data structures. Furthermore, the embodiment can identify components or electronic devices that do exceed assumed failure rates and that might be repaired or replaced to keep implementations of the specific technical in the desired failure rate limitations of the analysis, which can be done during the operation of the specific technical system.

The invention discloses a full-automatic connection glass production line. The full-automatic connection glass production line includes a first conveyor belt, an ABB sheet lifting mechanical arm, a Bando cutting machine, an automatic appearance defect inspection system, a printing machine, a toughening furnace, a baler/sheet laminator, a sandwich line roller press, and an autoclave; the Bando cutting machine, the automatic appearance defect inspection system, the printing machine, the toughening furnace, the baler/sheet laminator, the sandwich line roller press, and the autoclave are sequentially connected with a conveyor belt in order to complete automatic production and inspection of glass; and the ABB sheet lifting mechanical arm is mounted at the feeding end of the Bando cutting machine and used for automatically lifting a glass sample to be cut onto the conveyor belt. On the one hand, the production efficiency is effectively improved, and manpower is reduced; on the other hand, through the designs and uses of the automatic appearance defect inspection system, an automatic trademark printing detection system, and an inspection station, the failure mode and risks which may occurin a production system are effectively avoided, and the yield rate is effectively improved while the occurrence of the risks is reduced.

The invention relates to a center component of an electronic brake booster capable of being mechanically and fully decoupled, and belongs to the field of vehicle braking. The gear is rotatably connected with the transmission nut, the transmission nut is in threaded connection with the screw assembly, the valve body component is in clearance fit and sliding connection with the screw assembly, the screw assembly is fixedly connected with the support through a buckle, a displacement sensor in the displacement sensor component is fixedly connected with the support, and a magnet of the valve body component is in clearance fit with the displacement sensor. The magnet and the displacement sensor slide relatively to generate relative displacement, and a displacement signal is generated and used for enabling the motor to act. The component has the advantages that the structure is novel, a failure mode caused by poor sealing can be avoided, a machine is used as a decoupling form, the reliability is higher, mechanical full decoupling can be realized, the booster brings greater endurance to a vehicle when the brake energy of the vehicle is recovered, and the booster is the development trend of a future service brake system.