Abstract: In a front suspension for a front engine front wheel drive vehicle having the engine laterally mounted and the center of gravity laterally offset from the longitudinal axis thereof, the roll center of the suspension is offset from the central longitudinal axis toward the side of the center of gravity.

Abstract: Automobile front body structure including a side beam of a closed cross-section extending forwardly at each side of the front engine compartment. The side beam has a bifurcated front end portion comprised of an upper and lower branched portions. A front cross beam of a closed cross-section connects the front end portions of the lower branched portions. A front bumper is supported by the upper branched portions of the side beams.

Abstract: An engine having a turbo-supercharger comprised of a blower in the intake passage and an exhaust gas turbine in the exhaust passage. A charging pressure limiting device includes a pressure relief passage in the intake system or a turbine bypass passage in the exhaust system which is provided with a control valve. A control circuit is provided for limiting the peak charging pressure. The control circuit includes a limit signal generating circuit for providing a limit signal which decreases in response to an increase in the engine speed under a high speed range, a comparator for comparing the limit signal with the actual charging pressure signal and producing a control signal when the charging pressure signal reaches or exceeds the limit signal so that the charging pressure does not exceed the limit value which decreases in response to an increase in the engine speed under a high speed range.

Abstract: An apparatus for applying adhesive to automobile windshield glass panels which includes a turn table assembly for supporting a glass panel and moving it so that the peripheral portion of the glass panel is continuously exposed to an adhesive applying nozzle which is supported by an industrial robot. A control circuit such as a microprocessor is provided and has a first memory of the order in which different types of glass panels are supplied and a second memory including informations as to the controls of the turn table and the nozzle for applying adhesive to respective ones of the glass panel. The control circuit determines the type of the glass panel which is mounted on the turn table in accordance with the first memory and address to the second memory so as to control the movement of the turn table and the nozzle.

Abstract: Feedback control is carried out to maintain the idling speed of an internal combustion engine at a desired idling speed determined according to the operating conditions of the engine. When the actual idling speed of the engine significantly falls with respect to the desired idling speed for some reason, the amount of the intake air is increased by a large amount, while when the rotational speed falls to a small extent with respect to the desired idling speed, the amount of the intake air is increased little by little.

Abstract: The difference between the actual idling speed of an internal combustion engine and a desired idling speed determined according to the operating conditions of the engine is integrated and the opening angle of the throttle valve is controlled according to the integrated value to control the amount of the intake air, whereby the actual idling speed is equalized to the desired idling speed. When the actual idling speed becomes higher than a predetermined value, the idling speed control is interrupted with said integrating operation being continued and the throttle valve is positively closed.

Abstract: A power steering system including a power cylinder and a hydraulic pump for supplying a hydraulic pressure to the power cylinder through a control valve to produce a hydraulic assisting force. A control device is provided to drive the hydraulic pump only when one or both of the vehicle power clutch disconnecting member and the brake actuating member are actuated under a vehicle speed lower than a predetermined value.

Abstract: A throttle opening control device includes a driver for controlling the opening of the throttle during idling and a judgment circuit or an idle switch for determining an idling condition and means for halting driver operation during non-idling intervals. In one embodiment, a sensor detects the throttle opening and supplies the same to a throttle driver by way of a difference circuit which forms a deviation value between the output of the sensor and that of an arithmetic unit whose operation is suspended during non-idling periods.

Abstract: A ductile cast iron excellent in resistance to both oxidation at high temperatures and thermal fatigue, comprising C: 2.5 to 3.8 wt %, Si: 3.5 to 4.8 wt %, Mn: up to 1.0 wt %, P: up to 0.1 wt %, S: up to 0.1 wt %, Mo: 0.5 to 2.0 wt %, Mg: 0.03 to 0.1 wt %, at least one of Ce and La: 0.02 to 0.5 wt %, and Fe.

Abstract: An automobile instrument panel has a meter housing for supporting meters and various control switches. The switches are operatively coupled to respective manipulatable switch knobs which are grouped into two groups and mounted on the opposite lateral portion of the gauge covering. Each group of the switch knobs are arranged one above the other in a direction generally perpendicular to the longitudinal direction of the instrument panel and are supported for movement in a plane generally perpendicular to the plane of rotation of the steering wheel for controlling the associated switches.

Abstract: An air intake system for a supercharged automobile engine comprises a supercharger disposed on an air intake passage, a primary throttle valve disposed in a primary passage downstream of the supercharger and operatively coupled to an accelerator pedal, a secondary throttle valve disposed in a secondary passage and adapted to be controlled in association with the primary throttle valve, an auxiliary throttle valve in the secondary passage upstream of the secondary throttle valve, and an actuator operable to maintain the secondary throttle valve in a full open position when and so long as the load on the engine is equal to or larger than a predetermined medium load and to gradually open the secondary throttle valve with increase of the suction pressure when and so long as the load on the engine is smaller than the predetermined medium load.

Abstract: An air-fuel ratio control system for an automobile engine of a type having a fuel injection system wherein at least two of parameters including the engine speed, the opening of a throttle valve and the negative pressure developed inside a fuel intake passage are utilized to detect the rate of flow of incoming air to be mixed with an injected mist of fuel to form a combustible mixture. The amount of fuel to be injected into the intake passage depends on the detected rate of flow of the incoming air. A composition sensor for detecting the concentration of an exhaust gas component is also provided for controlling an EGR control valve for controlling the recirculation of a portion of exhaust gases from an exhaust passage into the intake passage.

Abstract: A rock drill having a hydraulic system for controlling striking, rotating and advancing movements of a drilling rod. The advancing or forward feeding conduit for a feed actuator is provided with a relief valve which is responsive to the pressure in the positive rotating conduit for a rotary actuator so that the pressure in the forward feeding conduit is relieved to weaken the advancing force when the load on the rotary actuator is increased. A further relief valve is also provided for relieving the pressure in the striker conduit to weaken the striking force.

Abstract: Seat back reclining mechanism having a coarse adjustment device and a fine adjustment device. The fine adjustment device includes an eccentric cam which may be mounted about a pivot pin for connecting a stationary plate secured to the seat bottom with a movable plate secured to the seat back. In the fine adjustment device, there is provided a locking device which prevents the eccentric cam from rotation. A fine adjustment lever functions when actuated to at first unlock the eccentric cam and then to make it rotate to perform a fine adjustment.

Abstract: An automobile transmission including a peripheral wall having an inner surface comprised in a cross-section of a plurality of curved portions which are continuous in series with each other through inwardly projecting node portions. The configuration of the casing provides a structure of high rigidity so that it is effective to suppress the vibrations of the casing wall and consequently the noise caused by such vibrations. The casing wall is formed with brackets for supporting the reverse idle gear shaft in the vicinity of one of the node portions. This arrangement is also effective to suppress vibrations.

Abstract: A front engine - front wheel drive automobile having an engine located transversely of the automobile body and a differential gear unit which is sidewardly offset from the longitudinal center line of the automobile body. A left and right drive shafts extend from the differential gear unit to a left and right front wheels and have different lengths so that the drive shafts are inclined with respect to a horizontal plane by different angles. The wheel which is connected with the drive shaft with a larger inclination angle has a larger camber angle than the other wheel. The arrangement is effective to decrease the difference between turning moments about the left and right king pin axes due to the difference in inclination angles of the driving shafts.

Abstract: Engine cooling system including a cooling water passage having cooling water jackets formed in the engine and a water pump for circulating cooling water through the water passage. A driving motor is provided for driving the water pump and a control circuit for the motor receives an engine speed signal so that the speed of the water pump is decreased to a predetermined low level when the engine temperature is low so that the engine can be warmed up rapidly while maintaining a cooling water circulation for preventing local overheating of the engine.

Abstract: A knock control device having a knock detecting means and an ignition timing control means is provided with a temperature sensor for detecting the temperature of the exhaust system of an internal combustion engine. If the knock detecting means detects occurrence of knock when the temperature of the exhaust system is lower than a predetermined value, the ignition timing control means retards the ignition timing by a first angle which is most desirable for suppressing the knock, while if the knocking detecting means detects occurrence of knock when the temperature of the exhaust system is not lower than the predetermined value, then the ignition timing control means retards the ignition timing by a second angle which is smaller than the first angle.

Abstract: Exhaust gas recirculation system including an intake pressure operated control valve for controlling the amount of exhaust gas recirculated to the intake system and a suction pressure adjusting valve of a duty factor solenoid type for determining the suction pressure applied to the control valve. A control circuit is provided for applying an operating signal to the pressure adjusting valve. The control circuit is associated with a memory device having memories of duty factors adapted to be applied to the pressure adjusting valve and corresponding to various combinations of engine speed and engine intake pressure. The memory device further includes memories on duty factors with which the control valve starts to open under various intake suction pressure, and memories on compensation factors under various engine temperatures so that the duty factors are modified under a cold engine temperature in accordance with the intake suction pressure and the engine temperature.

Abstract: A differential gear mounting mechanism including a transversely extending sub-frame which carries the differential gear assembly through a bracket. The sub-frame is supported by the body at an end portion wherein the vertical reaction force caused by the driving torque is larger than in the other end portion through an oleo type damper and at the other end by a resilient rubber mount. The differential gear assembly is also supported by the body through a resilient rubber mount.