Patent application number | Description | Published |
20090056655 | VARIABLE VALVE TIMING CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE AND COOLING DEVICE FOR THE SAME - A variable valve timing control apparatus of an internal combustion engine includes a phase change mechanism configured to control engine valve timing by changing a relative angular phase between a timing sprocket and a camshaft by braking torque application via an electromagnetic brake. A flow control valve is arranged downstream of an oil supply passage that supplies cooling oil into an inside of the phase change mechanism. The flow control valve includes a valve element configured to control a flow rate of the oil supplied into the inside of the phase change mechanism, by changing an opening area of a valve bore communicating the oil supply passage by way of an advancing/retreating motion of the valve element in the valve bore, and a temperature-sensitive member configured to create the advancing/retreating motion of the valve element responsively to a temperature of the oil. | 03-05-2009 |
20090090322 | VARIABLE VALVE TIMING CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE - A variable valve timing control apparatus of an internal combustion engine has a drive rotary member rotated by an engine crankshaft, a driven rotary member fixedly connected to a camshaft and transferring a turning force from the drive rotary member to the camshaft, and a phase-change mechanism changing a relative rotational phase between the drive and driven rotary members and having an intermediate rotary member installed between the drive and driven rotary members for a relative rotational phase control. The variable valve timing control apparatus further has a holding mechanism and a releasing mechanism. The holding mechanism forces the intermediate rotary member and holds the relative rotational phase between the drive and driven rotary members, and the releasing mechanism releases a holding state of the holding mechanism. | 04-09-2009 |
20090210137 | VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A valve timing control apparatus includes a phase varying mechanism arranged to vary a relative rotational phase of a cam shaft with respect to a crank shaft; a driving mechanism arranged to provide a driving force to the phase varying mechanism by energization; a control mechanism configured to control a current applied to the driving mechanism; and a phase angle sensing mechanism arranged to sense the relative rotational phase of the cam shaft with respect to the crank shaft, and to have a detection period longer than a control period of the control mechanism in accordance with an engine operating state. The control mechanism is configured to repeat increasing and decreasing of the current applied to the driving mechanism when the phase varying mechanism continuously varies the relative rotational phase of the cam shaft with respect to the crank shaft by a predetermined angle or more. | 08-20-2009 |
20090235883 | VALVE TIMING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A valve timing control apparatus for an internal combustion engine, including a drive rotary member that is rotated by the crankshaft, a driven rotary member that transmits rotational force input from the drive rotary member, to the camshaft, and an electromagnetic mechanism that acts to vary a relative rotational phase between the drive rotary member and the driven rotary member. After an ignition switch is turned off and the engine is stopped, the electromagnetic mechanism acts to produce detent torque and hold the relative rotational phase between the drive rotary member and the driven rotary member in a predetermined phase position by the detent torque. | 09-24-2009 |
20090301416 | VARIABLE VALVE TIMING CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE - A variable valve timing control apparatus of an internal combustion engine has a drive rotary member, a driven rotary member, and an electric motor which rotates with the drive rotary member and changes a rotational phase of the driven rotary member relative to the drive rotary member through a current application to a coil. The electric motor is covered with a cover member with a clearance interposed therebetween, and a bearing member is installed between an outer periphery of the electric motor and an inner periphery of the cover member for rotatably supporting the electric motor. The bearing member defines a space portion between an end surface, in a rotation shaft direction, of the electric motor and an opposing inner end surface of the cover member, and the space portion is supplied with lubricating oil by a lubricating oil supplying mechanism. | 12-10-2009 |
20090315521 | DEVICE PROVIDED WITH POWER SUPPLY CIRCUIT - A device configured to suppress the occurrence of an inrush current is provided at a low cost, where the device includes a power circuit configured to generate a voltage used to drive a load, a capacitor connected to a supply line provided to supply power from the power circuit to the load, the capacitor being configured in such manner to stabilize the potential of the load, a charging/discharging circuit that supplies an amount of power smaller than a predetermined amount of power to the capacitor and that discharges the smaller amount of power from the capacitor, a charging circuit that supplies an amount of power larger than the predetermined amount of power to the capacitor, and a switch circuit configured to make each of the charging/discharging circuit and the charging circuit operate. | 12-24-2009 |
20110267396 | INKJET PRINTING APPARATUS - In an inkjet printing apparatus capable of automatic duplex printing, time required to fix ink is shortened and throughput is improved without producing uneven fixing. The inkjet printing apparatus includes a printing unit that prints onto a sheet, a fixing unit that heats a sheet printed by the printing unit, a conveying unit that conveys a sheet with respect to the printing unit and the fixing unit, and a controller that controls the conveying unit such that a printing region of a sheet printed on the first side by the printing unit passes through the fixing unit, and afterwards, the conveyance direction of the sheet is reversed in order to print on the second side and the printing region once again passes through the fixing unit. The controller variably controls the conveyance speed of the sheet when the printing region once again passes through the fixing unit. | 11-03-2011 |
20120321489 | Water Pump - A water pump is constructed to have a rotating member that is adapted to be rotated by an external driving source, a housing that forms a part of a pump chamber from which a cooling water is led to an internal combustion chamber for cooling the engine upon rotation of the rotating member, a mechanical seal unit that is installed between the housing and the rotating member to seal the pump chamber and a bearing that is operatively disposed between the rotating member and the housing at a position other than the pump chamber, in which an annular slinger is arranged at an axial end of the bearing and fixed to a fixed portion, the annular slinger having a given portion that slidably contacts to the rotating member. | 12-20-2012 |