| OTICS Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20110116945 | LIFTER STRUCTURE - A lifter structure applied to an internal combustion engine and is actuated by a cam, includes a cylindrical lifter guide, a lifter body reciprocally moved in the guide while sliding on an inner circumferential surface of the guide, with drive of the cam, a pair of opposed walls continuous to an end of the lifter body, a pin extending through holes of the opposed walls and having two ends swaged onto outer surfaces of the opposed walls respectively, a roller disposed between the opposed walls, plural swaging side regions located at the same sides of the outer circumferential surface of the lifter body as the outer surfaces of the opposed walls, plural swaging side opposite regions located opposite the swaging side regions respectively, and plural escape recesses formed in the swaging side opposite regions so as to be spaced from the swaging side regions respectively. | 05-19-2011 |
| 20110050030 | ROTOR SHAFT - It is an object of the present invention to provide a rotor shaft capable of sufficiently securing a fastening strength between an inner shaft and an outer shaft, obtaining an excellent anti-rotation torque, and reducing a weight of the rotor shaft. A rotor shaft | 03-03-2011 |
| 20110041791 | ROCKER ARM UNIT - A rocker arm unit constituting a valve gear of an internal combustion engine includes a support member assembled into the cylinder head, a rocker arm supported on a top of the support member so as to be swung with a supported position serving as an approximate fulcrum, and a wire member bridging the support member side and the rocker arm side with each other thereby to connect the support member and the rocker arm together. | 02-24-2011 |
| 20110017160 | ROCKER ARM UNIT AND METHOD OF ASSEMBLING ROCKER ARM UNIT - A rocker arm unit comprises a lash adjuster having a plunger extending axially and a cylindrical body which houses the plunger so that the plunger is slidable; a rocker arm supported by an upper end of the plunger and swung with the supported position serving as a pivot; and a clip which is fixed to the body so as to extend from the fixed position to engage the rocker arm, thereby restricting drop of the rocker arm out of the lash adjuster. | 01-27-2011 |
| 20100180846 | Rocker arm for internal combustion engine - A rocker arm for an internal combustion engine includes a roller brought into contact with a cam thereby to be rotated, an arm body having a storage portion in which the roller is stored, the arm body being swung by rotation of the cam, thereby opening and closing a valve. The storage portion has an opening edge located on an upper surface of the arm body and opposed to a circumferential surface of the roller, and the opening edge includes a part receiving a lubricant flowing along the upper surface of the arm body, the part being formed with a receiving opening edge jutting out so that both widthwise ends thereof are located away from the circumferential surface of the roller and so that a widthwise central portion thereof comes close to the circumferential surface of the roller. | 07-22-2010 |
| 20100024753 | Variable valve mechanism - The present invention provides a variable valve mechanism which includes a camshaft having a drive cam, a rocker shaft provided parallel to the camshaft, and a variable mechanism that is provided on the rocker shaft and interposed between the drive cam and a valve, and that changes an opening/closing amount of the valve. The variable mechanism includes a main arm that engages with the drive cam, a cam arm that has a cam surface pressing the valve, a control cam that is provided on the rocker shaft, and has an outer peripheral surface whose distance from a shaft center of the rocker shaft varies gradually, and a displacement member whose distance from the shaft center is changed by turning of the control cam. A relative phase between the main arm and the cam arm is displaced as the distance between the displacement member and the shaft center changes. | 02-04-2010 |
| 20090298628 | Hydraulic Auto-Tensioner - A hydraulic auto-tensioner includes a high-pressure oil chamber and a low-pressure oil chamber, and oil (L) in the high-pressure oil chamber passes through a clearance (G) between a cylinder ( | 12-03-2009 |
| 20090194050 | ROCKER ARM - The rocker arm | 08-06-2009 |
| 20090188457 | Lash Adjuster - A lash adjuster includes a cylindrical bottomed plunger mounted in a cylindrical bottomed body so as to be movable upward and downward and including a high-pressure chamber defined between an underside of the plunger and a bottom wall of the body to reserve an operating oil, a leak path defined by an inner circumference of the body and an outer circumference of the plunger so that the oil reserved in the high-pressure chamber leaks through the leak path with downward movement of the plunger, and a ring-shaped member located between the inner circumference of the body and the outer circumference of the plunger, normally projecting into the leak path and being elastically deformed radially inward or outward with increase in pressure of the oil at the high-pressure chamber side so as to be retreated from the leak path, thereby reducing flow resistance of the oil in the leak path. | 07-30-2009 |
| 20090144977 | Method for manufacturing rocker arm - The present invention provides a rocker arm manufacturing method capable of improving the durability and excellent in productivity. In the method according to the present invention, an intermediate product | 06-11-2009 |
| 20090020088 | LASH ADJUSTER AND VALVE APPARATUS - A lash adjuster of the invention includes a body in a cylindrical shape and a plunger inserted to inside of the body. The plunger partitions a pressure chamber at inside of the body by being integrated to the body, and is moved in an axial direction at inside of the body by increasing or reducing a volume of inside of the pressure chamber by making a working fluid flow to inside of the pressure chamber or flow out from the pressure chamber. Further, between an inner peripheral face of the body and an outer peripheral face of the plunger, a spacer filling a gap between the two faces is interposed. | 01-22-2009 |
| 20080257291 | Variable valve mechanism - A variable valve mechanism includes a low-speed cam, a high-speed cam, a low-speed rocker arm driven by the low-speed cam, a high-speed rocker arm driven by the high-speed cam, and a switching mechanism. A cam profile of the high-speed cam is set such that it does not exceed a cam profile of the low-speed cam. During low-speed operation, the switching mechanism links the low-speed and the high-speed rocker arms such that the low-speed cam causes the high-speed rocker arm to rock together with the low-speed rocker arm and to open and close a valve. During high-speed operation, the switching mechanism de-links the low-speed rocker arm and the high-speed rocker arm such that the low-speed cam causes the low-speed rocker arm to rock idly and the high-speed cam causes the high-speed rocker arm to rock independently and to open and close the valve. The cam profile of the low-speed cam is set such that the valve closes later than it does with the cam profile of the high-speed cam. | 10-23-2008 |
| 20080230023 | Variable valve mechanism - The present invention provides a variable valve mechanism that varies amounts of opening and closing of a valve includes a rotating cam, a rocker arm, two lash adjusters, a hydraulic passage, and a switching mechanism. The rocker arm includes an input member and an output member. The two lash adjusters support the rocker arm so that the rocker arm can rock. The hydraulic passage includes an internal oil passage that is provided in an interior of at least one of the lash adjusters, and an arm oil passage that is provided in an interior of the rocker arm and that is connected from the internal oil passage. The switching mechanism uses a hydraulic pressure in the hydraulic passage to perform a switching between a linked state and a released state, and the switching varies the amounts of the opening and the closing of the valve. | 09-25-2008 |
