Abstract: It is provided a portable tester for leakage rate of a cylinder of an automobile engine. The portable tester includes a shell; wherein a circuit board and a manifold body are provided in the shell; a throttle hole is provided inside the manifold body, the shell includes a front shell and a rear shell; a display and a control key are provided respectively at an upper end of and at a middle part of the front shell; the circuit board is provided with a decoding drive electrically connected with the display, and a single chip microcomputer unit is provided on the decoding drive and electrically connected with the control key; an air inlet connecter and an air outlet connector are provided at the lower end of the front shell. Two ends of the manifold body are provided with sensors electrically connected with the single chip microcomputer unit.

Abstract: A probe carrier arrangement, especially for an exhaust system of an internal combustion engine, includes a probe socket (14) provided at a probe carrier body (12). The probe socket (14) has at least one insert-receiving opening (24) extending in a direction of an insert-receiving opening longitudinal axis (E). A probe carrier insert (28) is arranged in the insert-receiving opening (24). The probe carrier insert (28) has at least one probe-receiving opening (36) extending in a direction of a probe-receiving opening longitudinal axis (S).

Abstract: An oil pressure switch, which is connected in an oil path of a piston oil cooling jet to diagnose oil pressure, includes an upper body and a lower body, in which a plunger vertically moves according to oil pressure; a fixing plate that is disposed between the upper body and the lower body; a moving plate that selectively contacts a fixing plate according to movement of the plunger; a spring that generates an elastic force in a direction in which the moving plate selectively contacts the fixing plate; an output terminal that outputs an output signal according to contact between the moving plate and the fixing plate; and a parallel resistor that is electrically connected with the output terminal and electrically connected with a control resistor of a controller.

Abstract: A portable attitude test stand (PATS) for an aircraft engine, has: a support frame mountable on a trailer of a road vehicle; a test cell supported by the support frame and sized to receive the aircraft engine, the test cell operable to rotate the aircraft engine about a pitch axis and a roll axis of the aircraft engine; and an actuator operatively connected to the test cell and to the support frame, the actuator operable to lower and raise the test cell relative to the support frame between a transport configuration in which the test cell has a transport height and a test configuration in which the test cell has a test height, the test height being greater than the transport height.

Abstract: An engine testing system has a control box having a plurality of internal components such as switches for starting and stopping the engine, a switch to enable or disable the fuel injectors, a voltage meter, circuit breakers and fuses that supply power to auxiliary circuits, and the like. The testing system further has two large spring-loaded clamps, which are attached to heavy gauge cables, which allow for the connection of a battery.

Abstract: An on-line space detecting device for wheel inner, which comprises a frame, a servo motor A, a synchronous gear A, a bottom plate, a synchronous belt, a synchronous gear B, a base, a connecting shaft, a servo motor B, a shaft sleeve A, a lower end cap, a connecting shaft B, a shaft sleeve B, an oil cylinder, a bearing A, an end cap, a gland, bearings B, a chassis, a flange, a locating pin, springs, rising flaps, a connecting shaft C, a protection, a rising core etc., the present disclosure can meet the needs of the space detection for wheel inner, and has the characteristics of simple structure, convenient manufacture, stable performance and precision of meeting the processing requirements, and can meet the needs of automatic production.

Abstract: The disclosure relates to a method for monitoring behavior of a tire of a vehicle in a rolling condition of the tire, comprising the steps of: acquiring a signal representative of an acceleration of a specified point of the tire, deriving from the signal a curve which represents a profile of the acceleration of the point during a revolution of the tire, determining a leading portion and a trailing portion of the curve, corresponding to an entry of the point into a footprint region of the tire and corresponding to an exit of the point from the footprint region of the tire, respectively, determining a first measure of a volatility of the signal in the leading portion and a second measure of a volatility of the signal in the trailing portion, and determining an indication of the behavior of the tire based on the first measure and the second measure.

Abstract: A diagnostic method to identify a leak in a simulator valve for a vehicle brake system comprising the steps of: (1) energizing a secondary three-way valve, a pumping valve, a simulator test valve, and a plurality of apply valves in order to maintain a pressure medium from a plunger assembly within a boost circuit; (2) applying a plunger in the plunger assembly to a predetermined pressure level; (3) holding the plunger in position within the plunger assembly; and (4) identifying a leak in a simulator valve via a signal from an ECU to a vehicle user interface if the pressure in the boost circuit deteriorates at or more than a pre-determined rate.

Abstract: A transmission actuator unit (131) is fixed on a actuator support plate (105) of a connection box unit (101) through a pair of lock mechanisms (143). A pair of grommets (121), with which lock pins (144) are engaged, are provided at both of a front side and a rear side of the actuator support plate (105). Then, the transmission actuator unit (131) can be selectively mounted on the actuator support plate (105) in either of two attitudes that are reversed 180 degrees according to vehicle types. Since a base plate of the transmission actuator unit (131) is mounted on the actuator support plate (105) settled in a horizontal attitude, rigidity of support of the transmission actuator unit (131) and the actuator support plate (105) is high.

Abstract: A method, apparatus, and system for testing a performance of a device under different load conditions is provided. A load profile to be applied to the device by a linkage system that includes a support member, a load member, and an actuating member is identified. A value for a setting of an actuator of the actuating member is determined based on the load profile. The actuator is operated with the setting having the value determined such that a load is applied to a control surface of the device via the load member. The load applied to the control surface is determined by both the value for the setting of the actuator and a geometry of the linkage system.

Abstract: A turbocharger for a machine is disclosed. The turbocharger may comprise a turbine section including a turbine housing and a turbine wheel, a compressor section including a compressor housing and a compressor wheel with a plurality of blades, and a shaft rotatably coupling the turbine wheel and the compressor wheel. The turbocharger may further comprise a health sensor mounted to the compressor housing and including a plurality of wire loops. The plurality of wire loops may be consecutively broken upon impact with the blades of the compressor wheel or a structure assembled on the compressor wheel as the turbocharger wears over time. The health monitor may be configured to detect a number of wire loops broken by impact with the blades of the compressor wheel or the structure, and the number of wire loops broken may indicate a wear condition of the turbocharger.

Abstract: A braking robot for a braking test of a vehicle is provided. The braking robot includes: a plurality of motors, having same individual output powers, combined with a robot body installed in the vehicle; a motion shaft combined with a pedal presser for applying pedal effort to a brake pedal of the vehicle; a driving force converter which converts rotational forces of the motors, corresponding to the individual output powers of the motors, into a translational force and thus transmits the translational force to the motion shaft; a load sensor, installed on the motion shaft, for detecting the pedal effort applied to the brake pedal by the motion shaft; and a controller for controlling operations of the motors by referring to (1) a scenario for the braking test and (2) information on the pedal effort detected from the load sensor.

Abstract: The present disclosure discloses an experimental system and method capable of simulating a non-inertial system of gear transmission, and relates to the field of aviation power transmission. The experimental system includes a gear transmission experiment table, a linear motion platform and an electric vibration table. The linear motion platform drives the gear transmission experiment table to perform horizontal linear acceleration motion to simulate a non-inertial system for linear acceleration of gear transmission. The electric vibration table drives the gear transmission experiment table to rotate back and forth around a horizontal shaft to simulate a non-inertial system for pitching of gear transmission. The electric vibration table drives the gear transmission experiment table to rotate back and forth around a vertical shaft to simulate a non-inertial system for yawing of gear transmission.

Abstract: A remotely actuated vehicle pedal depression apparatus includes a handheld unit operatively coupled to a distal unit. Manual compression of an actuator disposed on the handheld unit effectuates extension of an extendable member forwardly from an anterior member disposed on the distal unit. Distal unit may be positioned in a footwell of an automobile to effectuate depression of a targeted pedal while a user performs observational diagnostics on the automobile without the assistance of another person.

Abstract: It is possible to reduce a burden on a user in performing a spectroscopic analysis of a liquid sample. There is provided an analysis cell that is detachable and replaceable with respect to an analysis unit and accommodates a liquid sample, the analysis cell including a first wall surface pair that is made of a material transmitting a light, and a second wall surface pair for propagating an ultrasonic wave to the accommodated liquid sample, in which a first wall surface and a second wall surface forming the second wall surface pair and facing each other, are formed of materials having different acoustic impedances.

Abstract: The gas turbine engine can have a set of components, the components of the set all being made of material compositions of the same type having a common at least one main material element, the material compositions having distinct signatures in the form of a varying trace amount of one or more signature element, the distinct signatures varying from one component of the set to another.

Abstract: A station for checking tyres includes a support structure defining an operating space for receiving a tyre and an overturning device with grip elements for engaging a radially outer portion of the tyre. A checking device includes a mechanical arm and at least one sensor associated with the mechanical arm. The overturning device overturns the tyre around an overturning axis perpendicular to a rotation axis of the tyre when the tyre is in the operating space. The mechanical arm is operatively active within the operating space and carries the sensor at least partially within the tyre for executing checks on an inner surface of the tyre housed in the operating space.

Abstract: The method can include analyzing the composition of the particulate metal debris, including ascertaining a presence of at least one main alloy element and a presence or absence of at least one signature alloy element in the particulate debris; establishing a correlation between the particulate metal debris and a set of components, including matching the ascertained presence of the at least one main alloy element to a family of alloys from which the components of the set, including the source component, are made; and determining the source component amongst the components of the set, including matching the ascertained presence or absence of the at least one signature alloy element to an alloy composition of the source component.

Abstract: Method and system for determining a specific mass flow rate of a highly viscous food product (1) having a viscosity of greater than 100 cP, which during processing in a continuous delivery flow is supplied to or removed from a buffer container (2) by means of a delivery pump (4) wherein a weighing device (7) is used to determine the change in the mass of the food product (1) in the buffer container (2) over a defined time period, which is in particular in the range of one or several minutes (?m/?t), wherein, in the same time period a pump parameter of the delivery pump (4) that is proportional to the expected delivery rate is registered, changes in the pump parameter over the time period are averaged to form an average pump parameter, wherein the current specific mass flow rate is calculated as a quotient from the change over time of the mass ?m/?t and the averaged pump parameter and is output.

Abstract: In this control apparatus design method, a feedback control system comprises a generalization plant including a nominal plant N representing the input/output characteristic of an object to be controlled and a fluctuation unit ? for making at least one model parameter included in the nominal plant N fluctuate, and a controller for applying input to the generalization plant P on the basis of output from the generalization plant P. The controller is designed so as to satisfy a prescribed design condition. The nominal plant N comprises a nominal value multiplication unit for multiplying an input signal ? by a nominal value for the model parameter and an addition unit for adding a fluctuation output signal ? from the fluctuation unit ? and an output signal from the nominal value multiplication unit. Further, the fluctuation unit ? generates the fluctuation output signal ? using a mapping ?p obtained from a Cayley transform of unbounded complex fluctuation ?g.