83results about How to "Effectively overcome drawbacks" patented technology

An electric power steering system for an automotive vehicle, includes a torque sensor disposed to a steering shaft to detect a steering torque. A first pinion is disposed to the steering shaft. A rack shaft is in mesh with the first pinion and connected with the steering shaft to change a rotational motion of the steering shaft to an axial motion of the rack shaft and provided to be operated in relation to the steering shaft. A first motor is connected with the first pinion to generate a steering assist torque in accordance with the steering torque detected by the torque sensor. A second pinion is disposed to be separate from the first pinion and in mesh with the rack shaft. A second motor is connected with the second pinion to generate a steering assist torque in accordance with the steering torque.

An oil separator provided in combination with a cylinder head cover of an internal combustion engine. The oil separator includes a separator cover fixed to an inner surface of the cylinder head cover defining a space extending in a first direction perpendicular to axis of a camshaft in plan, between the separator cover and the cylinder head cover. The separator cover has an opening through which the space is opened to a valve operating chamber. A partition wall is provided to define in the space an inlet-side separator chamber and an outlet-side separator. The partition wall extends in a second direction parallel with the axis of the camshaft and being formed with a plurality of fine passages. Additionally, a plurality of projection walls project from a part of the inner surface of the cylinder head cover which faces the valve operating chamber through the opening.

A seat reclining apparatus for a vehicle, including a stationary bracket and a movable bracket provided integral with a seat cushion and seat back, respectively. The movable bracket is equipped with a driving device. A speed-reduction unit is provided including an input shaft, a stationary member and a movable member. A forward-inclination mechanism is provided including a lock plate, an engaging-disengaging device and a restrictive device. The engaging-disengaging device is adapted to bring the lock plate and the movable bracket into one of an engagement state and a disengagement state. The movable bracket is connected to the stationary bracket through the speed-reduction unit and the forward-inclination mechanism. The seat reclining apparatus is further provided with a limit switch for powering off the driving device when the movable bracket and the lock plate are brought into the disengagement state.

A lubricant composition applicable to a sliding section or sliding member of an automotive internal combustion engine or power transmission apparatus to significantly lower a friction coefficient. The lubricant composition contains a base oil for a lubricating oil, an oxygen-containing organic compound, a diamond nano-particle and a dispersant for the diamond nano-particle.

A fuel vapor storage canister for an automotive vehicle, includes a casing formed thereinside with charge, purge and drain ports connected to a gas passage. First, second, third and fourth adsorption layers are disposed in the gas passage and arranged in order of first, second, third and forth adsorption layers from side of the charge port along a longitudinal direction of the gas passage. Each adsorption layer includes a fuel vapor adsorbent. Additionally, a first space section is formed between the first and second adsorption layers. A second space section is formed between the second and third adsorption sections. A third space section is formed between the third and fourth adsorption sections. Each space section has a width in the longitudinal direction of the gas passage.

An exhaust gas purifying system for an automotive internal combustion engine. The exhaust gas purifying system includes a particulate filter disposed in an exhaust gas passageway of the engine to collect particulate in exhaust gas flowing through the exhaust gas passageway. The collected particulate is burnt off to be removed by raising a temperature of exhaust gas in a condition in connection with the particulate filter. A plurality of devices are provided for raising the temperature of exhaust gas to be introduced into the particulate filter through the exhaust gas passageway when the collected particulate is burned off to be removed. Additionally, a control unit is configured to select at least one of the devices in accordance with an engine operating region and preferentially operate the selected at least one of the devices for raising the exhaust gas temperature.

A fuel vapor treatment device for suppressing emission of fuel vapor from a fuel tank or the like of an automotive vehicle. The fuel vapor treatment device comprises a casing having a charge port connected to a fuel tank, a purge port connected to an intake section of an engine, and an atmospheric air port through which atmospheric air is introduced. Fuel vapor adsorbing material is filled in the casing. Additionally, an adsorbing material cartridge is disposed in a part of the casing and includes a cylindrical cartridge main body section having a cross-sectional area smaller than that of the casing. Fuel vapor adsorbing material is filled in the cartridge main body section. Air introduced from the atmospheric air port is flowable through the inside of the cartridge main body section to the fuel vapor adsorbing material in the casing.

An electromagnetic suspension system for a vehicle, comprises an electromagnetic actuator interposed between a sprung mass and an unsprung mass and disposed substantially in parallel with an spring element. An electric motor is provided for driving the electromagnetic actuator. A motor controller is configured to calculate a displacement input applied to the electromagnetic actuator and to control the electric motor in a manner that the electromagnetic actuator generates an optimum damping force corresponding to the displacement input. A motor control circuit is provided for the electric motor, through which the electric motor is connected to the motor controller. Additionally, an electrical damping element is electrically connected to the motor control circuit and in parallel with the electric motor to generate a damping force in a passive manner under a dynamic braking of the electric motor in response to the displacement input to the electromagnetic actuator from the unsprung mass.

A fuel injection valve for an automotive internal combustion engine comprises a needle valve and an opposite member which are in slidable contact with each other in presence of fuel. A hard carbon thin film is coated on at least one of the sliding sections of the base materials of the needle valve and the opposite member. The hard carbon thin film has a surface hardness ranging from 1500 to 4500 kg / mm2 in Knoop hardness, a film thickness ranging from 0.3 to 2.0 μm, and a surface roughness (Ry) (μm) which satisfies a relationship represented by the following formula (A):Ry<(0.75−Hk / 8000)×h+0.0875  (A)where h is the thickness (μm) of the hard carbon thin film; Hk is the surface hardness in Knoop hardness (kg / mm2) of the hard carbon thin film.

A gas storage canister for use in an automotive vehicle, includes a case having first and second end sections which are opposite to each other in a direction of flow of gas. The first end section has a gas inflow port and a gas outflow port. The second end section has an atmosphere-opened port. A gas adsorbing material is disposed inside the case. Additionally, a heat accumulative agent is provided including a phase changing material which causes absorption and release of latent heat to occur in accordance with a temperature variation. The heat accumulative material is mixed with the gas adsorbing material and disposed inside the case. Here, a mix proportion of the heat accumulative agent changes in the gas flow direction between the first and second end sections.

A fuel vapor treatment device for suppressing emission of fuel vapor from a fuel tank or the like of an automotive vehicle. The fuel vapor treatment device comprises a casing having a charge port connected to a fuel tank, a purge port connected to an intake section of an engine, and an atmospheric air port through which atmospheric air is introduced. Fuel vapor adsorbing material is filled in the casing. Additionally, an adsorbing material cartridge is disposed in a part of the casing and includes a cylindrical cartridge main body section having a cross-sectional area smaller than that of the casing. Fuel vapor adsorbing material is filled in the cartridge main body section. Air introduced from the atmospheric air port is flowable through the inside of the cartridge main body section to the fuel vapor adsorbing material in the casing.

A fuel vapor treatment device for an automotive vehicle includes a casing having a charge port connected to a fuel tank, a purge port connected to an intake side of an engine, and an atmospheric air port through which atmospheric air is introduced. Fuel vapor adsorbing material is filled in the casing. A filter is disposed in the casing and between the atmospheric air port and the fuel vapor adsorbing material to trap dust contained in atmospheric air. A baffle plate is disposed in the casing and between the atmospheric air port and the filter to change flow of atmospheric air introduced through the atmospheric air port into a generally radial direction. Additionally, an annular space is formed around the baffle plate so that atmospheric air from the baffle plate flows through the annular space to the filter.

A gas storage canister for use in an automotive vehicle, includes a case having first and second end sections which are opposite to each other in a direction of flow of gas. The first end section has a gas inflow port and a gas outflow port. The second end section has an atmosphere-opened port. A gas adsorbing material is disposed inside the case. Additionally, a heat accumulative agent is provided including a phase changing material which causes absorption and release of latent heat to occur in accordance with a temperature variation. The heat accumulative material is mixed with the gas adsorbing material and disposed inside the case. Here, a mix proportion of the heat accumulative agent changes in the gas flow direction between the first and second end sections.

A training apparatus for performing a training of a rectus abdominis muscle. The training apparatus including an operation arm supported to be swingable by receiving a contact pressure from an arm of a user. A rotary section is provided carrying a load of a weight stack and supported to be rotatable by a swing of the operation arm. A seat section is provided to be swingably supported. A push section is provided to be swingably supported, and arranged to swing the seat section while supporting the seat section at a lower end portion of the seat section. In the training apparatus, the push section swings in one of a first state uncooperative with a rotation of the rotary section and a second state cooperative with the rotation of the rotary section.

An electric power steering system, includes a torque sensor disposed to a steering shaft to detect a steering torque. A first pinion is disposed to the steering shaft. A rack shaft is in mesh with the first pinion and connected with the steering shaft to change a rotational motion of the steering shaft to an axial motion of the rack shaft and provided to be operated in relation to the steering shaft. A first motor is connected with the first pinion to generate a steering assist torque in accordance with the steering torque detected by the torque sensor. A second pinion is disposed to be separate from the first pinion and in mesh with the rack shaft. A second motor is connected with the second pinion to generate a steering assist torque in accordance with the steering torque. A first control circuit is provided on a first control board for the first motor. A second control circuit is provided on the second control board for the second motor. The first control circuit monitors an abnormality in control state of the second control circuit and the second control circuit monitors an abnormality in control of the first control circuit.

A low friction sliding mechanism employed in an internal combustion engine of an automotive vehicle. The low friction sliding mechanism includes first and second sliding members which are in slidable contact with each other. At least one of the first and second sliding members has a sliding surface portion whose at least a part is formed of a resinous material containing hydrophilic fine particle. Additionally, a lubricant exists between the first and second sliding members and includes a friction modifier containing at least one of organic oxygen-containing compound and aliphatic amine-based compound.

A vapor storage canister used to treat fuel vapor of an automotive internal combustion engine. The vapor storage canister includes a casing. A granular formed heat accumulative material is disposed in the casing and includes a powdered heat accumulative agent formed of micro-capsules each of which contains a phase changing material which makes adsorption and release of latent heat in accordance with a temperature change. The granular formed heat accumulative material further includes a binder for binding the heat accumulative agents. Additionally, a granular gas adsorbing material disposed in the casing and mixed with the heat accumulative material.

An oil separator provided in combination with a cylinder head cover of an internal combustion engine. The oil separator includes a separator cover fixed to an inner surface of the cylinder head cover defining a space extending in a first direction perpendicular to axis of a camshaft in plan, between the separator cover and the cylinder head cover. The separator cover has an opening through which the space is opened to a valve operating chamber. A partition wall is provided to define in the space an inlet-side separator chamber and an outlet-side separator. The partition wall extends in a second direction parallel with the axis of the camshaft and being formed with a plurality of fine passages. Additionally, a plurality of projection walls project from a part of the inner surface of the cylinder head cover which faces the valve operating chamber through the opening.

A parking mechanism includes a parking gear disposed within a belt type continuously variable transmission and coaxially fixed to a first rotational shaft of a secondary pulley. A parking pawl is rotatable on a plane perpendicular to the first rotational shaft and able to engage the parking gear with a transmission housing to stop rotation of the secondary pulley. A manual shaft is rotatable with an operational force of a driver for a lever. A detent mechanism is provided for changing a rotational movement of the manual shaft to a movement in a direction of the first rotational shaft. The movement in the direction of the first rotational shaft is transmitted to the parking pawl through a rod. A cam is disposed at an end section of the rod to change the movement in the first rotational shaft to a rotational movement on the plane perpendicular to the first rotational shaft. The parking gear is integrally formed at an outer peripheral section of a fixed sheave of the secondary pulley. The detent mechanism for operating the parking pawl is disposed to side of the movable sheave of the secondary pulley. At least a part of the rod is located above a belt passed on a primary pulley and the secondary pulley of the belt type continuously variable transmission.

A seat reclining apparatus for a vehicle including a base member and a rotational member having an internal gear. A lock tooth is provided having an external gear engageable with the internal gear. A shaft section is provided is provided having an outer peripheral side guide surface. A cam is provided for having an inner peripheral side guide surface. Each of a pair of guide sections biasing the lock tooth to engage the external gear with the internal gear. The lock tooth has an outer peripheral side slide surface and a contact face. One of the guide sections has a backup surface. The one of the guide sections has a step portion formed between the outer peripheral side guide surface and the backup surface. Further, the lock tooth has a protruding section contactable with the step portion.

A power steering system for a vehicle, comprises a steering shaft connected to a steering mechanism. A hydraulic power cylinder is provided for assisting a steering effort of the steering mechanism. A reversible pump is provided having first and second discharge ports which are respectively connected through first and second hydraulic lines with two hydraulic pressure chambers of the hydraulic power cylinder so that the two hydraulic pressure chambers are respectively provided with hydraulic pressures. A driving device is provided for driving the reversible pump to rightly and reversely rotate. A differential pressure regulating valve is disposed in the hydraulic circuit to maintain pressure at least in the first and second hydraulic lines at a level of atmospheric pressure or higher in an inoperative condition of the reversible pump.

A training apparatus for training a gluteus maximus muscle. The training apparatus includes a load application device for producing a certain load. A seat section is provided for supporting a body of a trainee. A pivotally operative arm section is provided to receive the load produced by the load application device. A step is provided attached to the arm section, for resting a sole of the trainee thereon. The trainee is able to train the gluteus maximus muscle by repeating extending and bending actions of a leg while lying down on the seat section and resting the sole on the step. In this training apparatus, the step is rotated in linkage with a pivotal operation of the arm section.

A cylinder device such as a power cylinder of a power steering system includes a slidable shaft slidably disposed inside a housing. A joint member is connected to the end section of the slidable shaft. A stopper member is disposed between the slidable shaft and the joint member. Here, the end section of the slidable shaft is cutout to form an axial engagement surface. The slidable shaft and the joint member are connected in a condition where the end face of the slidable shaft is in contact with the end face of the joint member so as to from a groove between the axial engagement surface and the joint member. The stopper member is formed annular and has an engagement section formed along its inner periphery. The engagement section is fitted in the groove so that the stopper member is prevented from at least an axial movement.