Abstract: Corresponding sets of radially distributed helical surfaces in a drive coupling for axially urging either of two female cone members into positive engagement with a male cone member and providing a selectively bidirectional rotary output.

Abstract: A housing containing a pair of electronic circuit boards removably mounts on the side of an engine air filter housing. The circuit board housing has a generally concave inner face matching the convex contour of the air filter housing side wall and is disposed over air circulation openings in the air filter housing side wall. In a first embodiment, the circuit board housing is of one-piece construction and the electronic circuit boards are disposed interiorly of the outer wall of the circuit board housing and in generally parallel relationship therewith. In a second embodiment, the circuit board housing is of two-piece construction having upper and lower halves. In this embodiment, the circuit boards are horizontally disposed, one each in each of the two housing halves. Connectors for effecting connection of the circuit boards with the other components of the system which are located exteriorly of the air cleaner housing extend through holes in the circuit board housing.

Abstract: The invention relates to shift control mechanisms for clutches in which a cam and follower are used to control shifting of the clutch.

Abstract: A closed loop, electronically controlled and regulated fuel metering system for operating an internal combustion engine in accordance with a predetermined mass fuel-air ratio scheduled in the controller for different engine operating conditions. Linear air flow and fuel flow measuring devices and transducers responsive to selected ambient fluid and engine operating parameters develop electrical signals, which are related to the air flow rate and fuel flow rate and are modified in accordance with the sensed ambient parameters and a programmed signal from the scheduler representing the fuel-air ratio according to which it is desired to operate the engine over its range of operation.

Abstract: A variable inductance transducer for providing, via inductance modulation, an electrical output signal which is representative of a mechanical input signal. The transducer comprises a cylindrical plastic bobbin on which an inductive coil is wound. A pair of electrical terminal receiving sockets for a pair of electrical terminals are formed at one end of the bobbin and a pair of electrical terminals are disposed therein. The ends of the wire forming the coil are soldered to the terminals. A protective enclosure is molded around the coil and the portions of the terminals received in the sockets to enclose the coil and lock the terminals in place in the sockets. A ferrite core is slidably arranged within a central axial bore in the bobbin to vary the inductance of the transducer in accordance with the axial position of the core.

Abstract: An improvement in the method of "breaking" emulsions of oil in water by the formation of an oil adsorbing floc in which floc is recycled from one batch of wastewater to subsequent batches during the treatment.

Abstract: A power transmission unit for a motor vehicle comprising a driving member, a hydrokinetic torque converter having an impeller wheel, means drivingly connecting said driving member to said impeller wheel and input shaft, an output shaft, a planetary gear train drivingly connecting said input shaft to said output shaft, a guide wheel, a sleeve surrounding and drivingly connected to said input shaft, a one-way brake device located between said sleeve and said guide wheel, and lock-up clutch means adapted to positively connect the impeller wheel to the runner wheel.

Abstract: Front wheel suspension apparatus for a motor vehicle having a frame member which includes side rails on opposite sides thereof extending generally longitudinally of the vehicle, the apparatus having a cross member extending across the space between said side rails, rubber insulated connectors connecting said cross member to said rails, an upper control arm and a lower control arm pivotally connected to said cross member at each side thereof, wheel support structure connected to each set of upper and lower control arms. Two torsion bar and strut members connect the lower control arms to the cross member. Each torsion bar and strut member includes a forearm portion extending from the adjacent lower control arm forwardly and an elongated and inwardly transversely extending torsion bar portion.

Abstract: Four wheel drive train including a transfer case adapted to provide full time four wheel drive. A differential is provided in the transfer case and includes both a viscous coupling and a viscous fluid operated mechanical clutch which may be operated to inhibit and prevent differentiation.

Abstract: A heat treating atmosphere and method for its use wherein the atmosphere provides precise control over carbon content in metal parts, such as steel, and which is particularly applicable to powder metal sintering. The method uses a mixture of resultant constituents from dissociated ammonia and methane combusted with air to provide an atmosphere of controlled carbon potential. The ammonia is dissociated, the methane is combusted with air and the resultant constituents are mixed together prior to introduction into the heat treating furnace. The method prevents the formation of undesirable hard and brittle phases of carbides during sintering, the resulting products being free of segregated high carbon constituents, i.e., cementite, and being easier to machine, thus providing much longer cutting tool life.

Abstract: A novel exhaust gas recirculation (EGR) control system comprises an EGR valve having an inlet control port connected through a normally closed solenoid-actuated valve to venturi vacuum tap of the caburetor. The solenoid-actuated valve is controllably energized via an electrical control circuit which monitors a number of engine operational characteristics. In the preferred embodiment, these monitored characteristics include: the amount of throttle blade opening; the magnitude of intake manifold vacuum; the relative durations of idle and non-idle operation during a immediately past time period; and the engine temperature. Individual electrical control signals are derived for each of the monitored characteristics and the value of each signal indicates whether the correspondingoperating characteristic is commanding the solenoid-actuated valve to be energized.

Abstract: A rotatable drum type regenerator for an automobile gas turbine engine is manufactured from a steel matrix and rim of thin stock connected in radial sliding and sealing relationship at the hot axis end region to accommodate thermal cycling and to prevent rupture between the rim and matrix, and positively connected by brazing at the cooler axial end region to withstand the various forces therebetween.

Abstract: A variable inductance transducer for providing, via inductance modulation, an electrical output signal which is representative of a mechanical input signal. In a preferred embodiment the mechanical input signal is the intake manifold vacuum of an internal combustion engine and the electrical output signal is utilized in an engine spark timing control system to adjust the spark timing in accordance with the intake manifold vacuum. The transducer comprises an actuating mechanism in the form of a vacuum servo which axially positions a ferrite core within a central axial bore of a plastic bobbin on which an inductive coil is wound to thereby vary the inductance of the coil in accordance with the vacuum applied to the servo. The bobbin and coil are enclosed in plastic to form a separate unit which is assembled into the transducer by being controllably lodged within the bore of a molded plastic element forming a portion of the body of the transducer.

Abstract: A variable inductance transducer for providing, via inductance modulation, an electrical output signal which is representative of a mechanical input signal. The transducer comprises a cylindrical plastic bobbin on which an inductive coil is wound. A pair of electrical terminal receiving sockets for a pair of electrical terminals are formed at one end of the bobbin and a pair of electrical terminals are disposed therein. The ends of the wire forming the coil are soldered to the terminals. A protective enclosure is molded around the coil and the portions of the terminals received in the sockets to enclose the coil and lock the terminals in place in the sockets. A ferrite core is slidably arranged within a central axial bore in the bobbin to vary the inductance of the transducer in accordance with the axial position of the core.

Abstract: A variable inductance transducer for providing, via inductance modulation, an electrical output signal which is representative of a mechanical input signal. The transducer comprises a cylindrical plastic bobbin on which an inductive coil is wound. A pair of electrical terminal receiving sockets for a pair of electrical terminals are formed at one end of the bobbin and a pair of electrical terminals are disposed therein. The ends of the wire forming the coil are soldered to the terminals. A protective enclosure is molded around the coil and the portions of the terminals received in the sockets to enclose the coil and lock the terminals in place in the sockets. A ferrite core is slidably arranged within a central axial bore in the bobbin to vary the inductance of the transducer in accordance with the axial position of the core.

Abstract: A circuit for generating a throttle advance signal for use in an electronic engine spark timing control system contains: a throttle position transducer circuit which develops a constant frequency pulse train wherein the width of the pulses is modulated in accordance with throttle position derived from a throttle position transducer; a pulse to analog conversion circuit with ambient air temperature compensation which converts the pulse train into a temperature compensated analog signal representative of throttle position; and a throttle rate circuit which monitors the rate of change of throttle position to provide a throttle rate signal whose sensitivity is inversely proportional to ambient air temperature but whose magnitude is independent of ambient air temperature. The throttle advance signal is a function of both the throttle position signal and the throttle rate signal. The throttle advance signal is used to adjust engine spark timing in accordance with throttle operation.

Abstract: Corresponding sets of radially distributed helical surfaces in a cone clutch axially urge movable cone members selectively into engagement with either of two mating cone members thereby enabling a clutch output member or members to be driven in either rotary direction.

Abstract: A catalytic reactor of oval cross section comprises a generally cylindrical catalytic substrate clamped between paired housing shells and spaced therefrom by a mesh support that extends around the oval periphery of the substrate and slightly overlaps the latter's axially opposite ends to provide locating projections. The support and housing are preferably interlocked by one or more pairs of inwardly opening channels of the housing having portions of the mesh support confined therein, each pair being spaced axially by a rib of the housing projecting into the mesh support. The housing has axially endwise converging cam portions adjacent and axially endwise of the opposite ends of the substrate to engage the locating projections and center the assembled substrate and mesh support within the housing during manufacture of the reactor.

Abstract: A speed sensor circuit for providing a speed signal representative of the speed of a vehicle comprises a resonant tank circuit whose resonant frequency is modulated in accordance with the speed of the vehicle and a phase locked loop detector circuit which locks onto the frequency of the resonant tank circuit and provides a demodulated output signal representative of the vehicle speed.

Abstract: Resilient means yieldably opposes opening of the throttle for an automobile engine when the latter is accelerated too rapidly for acceptable fuel economy. Pressure actuated means responsive to inlet manifold pressure withdraws the resilient means from the path of opening movement of the throttle to enable throttle opening without opposition by the resilient means when the rate of acceleration is sufficiently low to achieve the acceptable fuel economy. The throttle opposing force of the resilient means is readily detectable by the automobile driver, but may be overcome by him when rapid acceleration is desired. Also supplemental means under the control of the driver is provided for selectively withdrawing the resilient means from the path of throttle opening movement when no indication of rapid acceleration is desired.