Abstract:
The present invention is a testing apparatus and method for automatically confirming the presence of all of at least one ring within a groove of an article of manufacture, such as a piston of a vehicle engine, during assembly of the article of manufacture. An air flow is applied on the groove, and the resulting amount of air flow through the groove depends on the presence of each of the at least one ring within the groove. This resulting amount of air flow through the groove is measured for determining whether all of the at least one ring is present within the groove. If any of the at least one ring is absent from the groove, an alarm indication of this undesired situation is provided. Use of a microcontroller allows for calibration of the components in the testing apparatus of the present invention and allows for monitoring for proper calibration of such components. Such calibration and monitoring by the microcontroller results in reliable confirmation of the presence of all of the at least one ring within the groove of the article of manufacture.
Abstract:
An apparatus and method for fabrication and testing of a magnichanical sensor for proper operation in detecting the presence of a snap ring during manufacture of an object having the snap ring for clasping a bearing. The magnichanical sensor is comprised of a magnetic field generator and a magnetic switch that are properly aligned on a sensor circuit board. The present invention adjusts a second position of the magnetic switch with respect to a first position of the magnetic field generator on the sensor circuit board. The present invention includes an indicator assembly coupled to the magnetic switch for indicating when the second position of the magnetic switch is properly aligned with respect to the first position of the magnetic field generator on the sensor circuit board. The second position of the magnetic switch with respect to the first position of the magnetic field generator is adjusted for proper alignment for both situations when the snap ring is present and when the snap ring is not present. Thus, the operation of the magnichanical sensor within the fabrication and testing unit of the present invention is mirrored for proper operation during manufacture of a vehicle transmission system. When the first position of the magnetic field generator and the second position of the magnetic switch are properly aligned, the magnetic field generator is securely attached to the sensor circuit board at the first position, and the magnetic switch is securely attached to the sensor circuit board at the second position, to form the magnichanical sensor.
Abstract:
A method for installing a heated piston into a cylinder sleeve that is initially smaller than the piston includes: receiving the engine block at a heating station, heating the engine cylinder sleeve with heated air for a predetermined time at a predetermined temperature such that a temperature of the cylinder sleeve is equal to or greater than a temperature of the piston, and inserting the piston into the heated cylinder sleeve.
Abstract:
A method and apparatus for developing a test for determining if an engine has oil seal leaks. The engine is charged with a predetermined pressure of air and monitored by a leak tester. A digital valve is set to provide a certain leak rate based upon signals received from a digital valve controller. Thereafter, based upon signals received from a PC and a main control unit, a variety of trials are completed. The results and programs are stored in the PC. Results of the trials allow an optimized testing program to be selected that would be best suited for use on a manufacturing assembly line.
Abstract:
The present invention is an assembly line testing apparatus and method for automatically determining whether a size of a gap, within at least one component of an article of manufacture, is within an acceptable range, during assembly of the article of manufacture. The present invention uses a microcontroller to control the operation of the assembly line testing apparatus of the present invention such that the size of the gap may be checked in a flexible and reliable manner by repeating the cycle of checking for the size of the gap. The present invention may be used to particular advantage for checking that the size of a spark plug gap within a vehicle engine is within an acceptable range during assembly of the vehicle engine.
Abstract:
A method for installing a heated piston into a cylinder sleeve that is initially smaller than the piston includes: receiving the engine block at a heating station, heating the engine cylinder sleeve with heated air for a predetermined time at a predetermined temperature such that a temperature of the cylinder sleeve is equal to or greater than a temperature of the piston, and inserting the piston into the heated cylinder sleeve.
Abstract:
A method for installing a heated piston into a cylinder sleeve that is initially smaller than the piston includes: receiving the engine block at a heating station, heating the engine cylinder sleeve with heated air for a predetermined time at a predetermined temperature such that a temperature of the cylinder sleeve is equal to or greater than a temperature of the piston, and inserting the piston into the heated cylinder sleeve.
Abstract:
A sensor device is used for sensing position of a movable component. The sensor device can be applied to multiple applications. For example, proper alignment between a shifter spline and a shifter position sensor of a transmission assembly can be confirmed by applying the sensor device of the present invention to confirm alignment of the transmission shifter with a transmission shifter position sensor during transmission assembly. A rotary sensor converts angular movement to a proportional electrical output. A converter then converts the proportional electrical output to an input which can be read. The location of the movable component is then determined, and displayed.
Abstract:
A system is provided for detecting the presence of and confirming the correct orientation of an oil seal. The system comprises a sensor orifice, a flow regulator for regulating flow of air to the sensor orifice, a pressure regulator for regulating air pressure to the flow regulator, and an air supply means for supplying air to the pressure regulator. A vent orifice is also provided for allowing air flow to exit from the sensor orifice when the oil seal is incorrectly oriented. The system further comprises an air pressure sensor, whereby when the oil seal is correctly oriented, with its flat side blocking the sensor orifice, a back pressure of air is created in the sensor orifice and the air supply means, the back pressure detectable by the air pressure sensor to confirm presence and correct orientation of the oil seal.
Abstract:
A method and apparatus for reducing or eliminating the energy required by an operator of a delivery cart to start the cart moving in a predetermined direction at a predetermined speed as well as to recover some or all of the energy used to start the cart moving. The apparatus includes a cart, a drive wheel, a motor for driving the drive wheel, and a rechargeable energy source to power said motor where the rechargeable energy source is recharged during normal, unpowered movement of the cart. The method includes charging a power source while moving the cart, actuating a directional button to initiate movement in a desired direction, energizing a clutch to couple the motor to the driven wheel, energizing the motor to drive the driven wheel in the desired direction. After a predetermined time period, set by a run timer, the clutch is decoupled while the motor remains activated, and thereafter the motor is deactivated.