| Patent application number | Description | Published |
|---|
| 20080210208 | Control Apparatus and Control Method for Internal Combustion Engine - A throttle operation is performed after an internal combustion engine is started. Then, temperature of a catalyst is obtained based on a signal output from a temperature sensor fitted to the catalyst. It is then determined whether the temperature obtained is equal to or higher than the activation temperature. If it is determined that the temperature of the catalyst has not reached the activation temperature, the throttle operation continues. On the other hand, if it is determined that the temperature of the catalyst is equal to or higher than the activation temperature, the non-throttle operation is performed instead of the throttle operation. | 09-04-2008 |
| 20090025666 | VARIABLE VALVE-OPERATING DEVICE - The rotary motion of a camshaft is transmitted from a first drive cam to a slide surface of a swing cam arm via intermediate members so that the swing cam arm lifts a valve. In this instance, the operating characteristic of the valve changes when the rotation position of a control shaft changes to change the positions of the intermediate members on the slide surface. When the operating characteristic control mode for the valve is to be changed from variable control to fixed control, coupling means couples the swing cam arm and input arm, thereby causing a second drive cam to swing the swing cam arm. The setting for the lift amount of the valve that is obtained when the second drive cam swings the swing cam arm is not smaller than a maximum lift amount setting for a situation where the first drive cam swings the swing cam arm. | 01-29-2009 |
| 20090272351 | VALVE DRIVE SYSTEM AND VALVE DRIVING METHOD - A valve drive system comprises a power transmitting mechanism ( | 11-05-2009 |
| 20100126446 | VARIABLE VALVE APPARATUS - A drive cam opens or closes an intake valve via a variable mechanism, a split-type rocking cam arm, and a valve actuating mechanism. The variable mechanism varies a position of an intermediate roller corresponding to a rotating angle of a control shaft, thereby variably setting a lift amount of the intake valve. The split-type rocking cam arm includes an input arm and an output arm, and a connection selection mechanism is disposed between the arms. When the arms are connected together, the intake valve performs an ordinary open/close operation. When the arms are disconnected, an input of the drive cam is absorbed by a relative rocking motion between the arms, so that the intake valve is retained in a pause state. | 05-27-2010 |
| Patent application number | Description | Published |
|---|
| 20080302320 | Variable Valve Operating Device - The present invention relates to a variable valve operating device and makes it possible to reduce the loss in driving force transmission from a camshaft to a valve during a valve lift. | 12-11-2008 |
| 20090038567 | Variable valve operating device - The present invention relates to a variable valve operating device and makes it possible to inhibit friction during driving force transmission and provide high durability through the use of a compact configuration. | 02-12-2009 |
| 20090255494 | Variable Valve Mechanism for Internal Combustion Engine - A worm gear is connected to an actuator and a worm wheel is connected to a. control shaft. The worm wheel has teeth formed only on a predetermined angular range thereof. The above-referenced angular range includes a required rotational range of the control shaft. The worm wheel is formed to be brought out of mesh with the worm gear outside the predetermined angular range. | 10-15-2009 |
| 20090277408 | Variable valve operating device and valve opening amount adjustment method - The present invention relates to a variable valve operating device and a valve opening amount adjustment method, and can accurately control the amount of in-cylinder air and the strength of a swirl flow. The variable valve operating device according to the present invention includes a valve mechanism that can select a dual valve variable control mode in which the valve opening amounts of a first valve and a second valve, which are of the same type and provided for the same cylinder, can be varied continuously or in multiple steps. A valve opening amount difference is provided when the valve opening amounts are minimized in the dual valve variable control mode so that the valve opening amount of the first valve is larger than that of the second valve. In addition, adjustments are made so that the minimum valve opening amount of the first valve does not vary from one cylinder to another. | 11-12-2009 |
| 20090320779 | VARIABLE VALVE MECHANISM - Disclosed is a variable valve mechanism for an internal combustion engine. The variable valve mechanism accurately adjusts the valve operating angle although its structure is simple. The variable valve mechanism includes a control pin | 12-31-2009 |
