Patent application number | Description | Published |
20100079742 | SUBSTRATE HOLDING APPARATUS, MASK, SUBSTRATE PROCESSING APPARATUS, AND IMAGE DISPLAY DEVICE MANUFACTURING METHOD - An apparatus comprises a carrier including a permanent electromagnet and configured to hold a mask containing a magnetic material and a substrate by magnetically attracting the mask via the substrate, and a sensor unit configured to sense a state of the carrier using a magnetic sensor for sensing a magnetic field from the permanent electromagnet, the permanent electromagnet including a variable-polarity magnet, a coil which generates a magnetic field for changing the polarity of the variable-polarity magnet, and a fixed-polarity magnet having fixed polarity, a state of the carrier is set in one of a first state in which the mask and the substrate are held by a magnetic field generated by the variable-polarity magnet and the fixed-polarity magnet, and a second state in which the mask and the substrate are not held, by controlling the polarity of the variable-polarity magnet by the magnetic field generated by the coil. | 04-01-2010 |
20100081355 | SUBSTRATE HOLDING APPARATUS, CARRIER, SUBSTRATE PROCESSING APPARATUS, AND IMAGE DISPLAY DEVICE MANUFACTURING METHOD - An apparatus comprises a carrier configured to hold a mask containing a magnetic material and a substrate by magnetically attracting the mask via the substrate, and a controller configured to control the carrier, the carrier including a permanent electromagnet and a first contact, the permanent electromagnet including a variable-polarity magnet, a coil electrically connected to the first contact and generates a magnetic field for changing the polarity of the variable-polarity magnet by an electric current supplied via the first contact, and a fixed-polarity magnet. The controller includes a second contact which is in contact with the first contact and supplies an electric current to the coil via the first contact, a sensor unit which senses a contact state between the first contact and the second contact, and a current supply unit which supplies an electric current to the coil via the first contact and the second contact. | 04-01-2010 |
Patent application number | Description | Published |
20090070001 | CONTROLLER FOR HYBRID VEHICLE - A fuel vapor treatment apparatus includes: a detection passage provided with a restrictor therein; a pump generating a gas-flow in the detection passage; and a differential pressure sensor detecting a pressure loss at the restrictor. A fuel vapor concentration is computed based on a pressure loss when air passes through the detection passage and a pressure loss when an air-fuel mixture passes through the detection passage. When the computed fuel vapor concentration reaches a specified value, an internal combustion engine is started and the fuel vapor treatment apparatus starts to supply the fuel vapor adsorbed by the canister to the internal combustion engine. | 03-12-2009 |
20110197850 | FUEL SUPPLY SYSTEM - A sub-injector injects liquid fuel into a vaporized-fuel chamber of a vaporized-fuel tank. The injected liquid fuel is vaporized in the vaporized-fuel chamber. The generated vaporized fuel is supplied to a combustion chamber through a vaporized-fuel passage. A supply of the vaporized fuel to the combustion chamber is controlled by a purge valve. Thereby, the vaporized fuel can be precisely supplied to the engine at a start of engine, so that emission can be reduced. | 08-18-2011 |
20120118046 | EVAPORATION LEAK CHECK SYSTEM - A pump characteristics expression of a pump is developed based on a closed-state pressure detected when the pump is driven while a space between a pump passage and a first passage is closed, an open-time pressure detected immediately after the space is opened while the pump is operated, and a flow rate characteristics expression of the pump passage. A reference pressure is determined by an intersection point between the pump characteristics expression of the pump and a flow rate characteristics expression of an orifice having a predetermined passage area. A leak check portion determines whether a leak of fuel evaporation generated from a fuel tank is within an allowable range by comparing the reference pressure and a pressure detected when the pump is operated for a predetermined period while the space is opened. | 05-17-2012 |
20120216779 | FUEL SUPPLY DEVICE - A fuel supply device includes: an injector that injects and supplies fuel to an engine; a pressure accumulator communicating with a cylinder of the engine through a communication passage; a valve that opens or closes the communication passage; and a controller that controls the injector and the valve. When the engine is rotated, an air-fuel mixture is compressed in the cylinder, and an accumulating portion of the controller accumulates the air-fuel mixture in the pressure accumulator. When the engine is restarted, a supplying portion of the controller supplies the air-fuel mixture accumulated in the pressure accumulator to the cylinder. | 08-30-2012 |
20140102421 | FUEL VAPOR LEAKAGE DETECTION METHOD - A fuel vapor leakage detection device performs a fuel vapor leakage detection method to detect a clogging of passages in an evaporated fuel processing system by (i) switching a switching valve after measuring a first reference pressure, (ii) determining whether a detected pressure equals atmospheric pressure after opening a purge valve, (iii) recording the detected pressure after closing the purge valve, and (iv) switching the switching valve to depressurize an atmospheric system and to determine whether a current detection value of the pressure sensor is the same as the first reference pressure. Then, a second reference pressure is measured for comparison with the first reference pressure, to determine whether the evaporation system is clogged. In such manner, leakage and the clogging of the passages in an evaporated fuel processing system may be detected. | 04-17-2014 |
20140331976 | CANISTER MODULE - A tank passage communicates a canister housing with a fuel tank. A purge passage communicates the canister housing with an intake air system. An atmospheric air passage communicates the canister housing with an atmosphere. A valve housing accommodating a valve element is located in a recessed portion defined with a first inner wall and a second inner wall. A seal member is located on a radially outside of the valve housing to seal the recessed portion. The first inner wall has a first opening to communicate the canister housing with the recessed portion. The second inner wall has a second opening to communicate the recessed portion with the atmospheric air passage. The first opening or the second opening is defined around a valve seat. The valve element is seated on and lifted from the valve seat to control communication between the canister housing and the atmospheric air passage. | 11-13-2014 |