Abstract: A control apparatus for an AC rotary machine includes: a current detection section detecting current from a power converter to the AC rotary machine; and a control section generating a three-phase AC voltage instruction to the power converter, based on current detected by the current detection section and a torque instruction. The control section includes: an observer calculating a magnetic flux estimated value of the AC rotary machine, based on detected current and the voltage instruction; a current instruction calculation unit calculating current instruction values on rotational two axes, based on the torque instruction and the magnetic flux estimated value from the observer; and a voltage instruction calculation unit calculating the voltage instruction, based on the current instruction values from the current instruction calculation unit and the magnetic flux estimated value from the observer.

Abstract: A control apparatus for an AC rotating machine that can reliably and stably start up an AC rotating machine, particularly a synchronous motor using a permanent magnet, in position-sensorless vector control thereof, includes: a steady speed calculator that calculates, during steady state control of the AC rotating machine, a rotation angular frequency of the AC rotating machine based on an AC current and voltage commands; and a start-up speed calculator that calculates, during start-up control within a predetermined period after the AC rotating machine has been started up, the rotation angular frequency of the AC rotating machine based on the AC current and the voltage commands. The control apparatus corrects during the start-up control current commands so that the AC voltage amplitude of the voltage commands will be a constant value not more than the maximum output voltage of a power converter.

Abstract: A valve member of a pressure relief valve has a shaft portion, a pressure receiving portion, and a guide portion, wherein the valve member is axially movable in a fuel return passage. When a forward end of the shaft portion is seated on a valve seta, the fuel return passage is closed, while the shaft portion is separated from the valve seat the fuel return passage is opened. A notched portion is formed at an outer wall of the guide portion to thereby form an outer-surface passage. A fuel inlet port is formed in the valve member for communicating a fuel inlet chamber to the fuel return passage at a downstream side of the valve member.

Abstract: A valve member of a pressure relief valve has a shaft portion, a pressure receiving portion, and a guide portion, wherein the valve member is axially movable in a fuel return passage. When a forward end of the shaft portion is seated on a valve seta, the fuel return passage is closed, while the shaft portion is separated from the valve seat the fuel return passage is opened. A notched portion is formed at an outer wall of the guide portion to thereby form an outer-surface passage. A fuel inlet port is formed in the valve member for communicating a fuel inlet chamber to the fuel return passage at a downstream side of the valve member.

Abstract: An exhaust gas-purifying system for purifying exhaust gas discharged from a diesel engine includes a diesel oxidation catalyst through which the exhaust gas passes, a diesel particulate filter which includes a filter substrate and an active component supported by the filter substrate and exhibiting a catalytic activity for selective catalytic reduction and through which the exhaust gas having passed through the diesel oxidation catalyst penetrates, and an ammonia slip catalyst which includes a zeolite whose alkaline metal ions are partially exchanged with transition metal ions and through which the exhaust gas having penetrated the diesel particulate filter passes.

Abstract: A controller that controls ON/OFF of switching elements and opening/closing of an opening/closing unit based on currents detected by current detectors. The controller includes a fault detector that detects whether any of the switching elements has a short-circuit fault and outputs a signal indicating a detection result, an ON/OFF controller that sets one of the switching elements that constitutes a phase other than a first phase that involves the short-circuit fault to an ON operation state and outputs a signal for opening the opening/closing unit, and an opening/closing controller that opens an opening/closing unit connected to a third phase other than the first phase and the second phase in which one of the switching elements is set to the ON operation state by the ON/OFF controller.

Abstract: A NOx selective reduction catalyst for reducing NOx by the ammonia adsorbed is disposed in an engine exhaust gas passage. As states of adsorption of ammonia by the catalyst, there are a first adsorption state of ammonia that occurs when the ammonia is adsorbed during low temperature and a second adsorption state of ammonia that occurs when the ammonia is adsorbed or has already been adsorbed during high temperature. The amount of adsorbed ammonia in the first state is restricted to control concentration of the ammonia that is in the first state and desorbed when the temperature of the catalyst increases so as to be not higher than an allowable concentration, and that in the second state is restricted to control concentration of the ammonia that is in the second state and desorbed when the temperature of the catalyst increases so as to be not higher than an allowable concentration.

Abstract: In an exhaust gas purification system for an internal combustion engine, a NOx selective reduction catalyst for reducing NOx with ammonia that is adsorbed on the NOx selective reduction catalyst is disposed in an exhaust passage of the engine. In the NOx selective reduction catalyst, ammonia in a first adsorption state that is adsorbed at a low temperature and ammonia in a second adsorption state that is adsorbed at a high temperature are present. Because ammonia, which has been in the first adsorption state and which is desorbed from the NOx selective reduction catalyst, tends to be discharged to the atmosphere, a control section that estimates an adsorption amount of ammonia in the first adsorption state is provided in the exhaust gas purification system for the internal combustion engine in order to control the adsorption amount of ammonia in the first adsorption state within a specified level.

Abstract: A control apparatus for an AC rotary machine includes: a current detection section detecting current from a power converter to the AC rotary machine; and a control section generating a three-phase AC voltage instruction to the power converter, based on current detected by the current detection section and a torque instruction. The control section includes: an observer calculating a magnetic flux estimated value of the AC rotary machine, based on detected current and the voltage instruction; a current instruction calculation unit calculating current instruction values on rotational two axes, based on the torque instruction and the magnetic flux estimated value from the observer; and a voltage instruction calculation unit calculating the voltage instruction, based on the current instruction values from the current instruction calculation unit and the magnetic flux estimated value from the observer.

Abstract: A control apparatus for an AC rotating machine that can reliably and stably start up an AC rotating machine, particularly a synchronous motor using a permanent magnet, in position-sensorless vector control thereof, includes: a steady speed calculator that calculates, during steady state control of the AC rotating machine, a rotation angular frequency of the AC rotating machine based on an AC current and voltage commands; and a start-up speed calculator that calculates, during start-up control within a predetermined period after the AC rotating machine has been started up, the rotation angular frequency of the AC rotating machine based on the AC current and the voltage commands. The control apparatus corrects during the start-up control current commands so that the AC voltage amplitude of the voltage commands will be a constant value not more than the maximum output voltage of a power converter.

Abstract: A NOx selective reduction catalyst for reducing NOx by the ammonia adsorbed is disposed in an engine exhaust gas passage. As states of adsorption of ammonia by the catalyst, there are a first adsorption state of ammonia that occurs when the ammonia is adsorbed during low temperature and a second adsorption state of ammonia that occurs when the ammonia is adsorbed or has already been adsorbed during high temperature. The amount of adsorbed ammonia in the first state is restricted to control concentration of the ammonia that is in the first state and desorbed when the temperature of the catalyst increases so as to be not higher than an allowable concentration, and that in the second state is restricted to control concentration of the ammonia that is in the second state and desorbed when the temperature of the catalyst increases so as to be not higher than an allowable concentration.

Abstract: A fuel injection system, and a structure for mounting a fuel injection valve to an internal combustion engine, that includes: a combustion chamber formed at an end surface of a piston that reciprocates in a cylinder; an intake port through which intake air drawn into the combustion chamber flows; and an intake valve that opens and closes a connection between the intake port and the combustion chamber, the fuel injection valve being placed to inject fuel into intake air in the intake port, wherein an end portion of the fuel injection valve located on a combustion chamber side thereof is placed at a location that overlaps with an imaginary plane perpendicular to a center axis of the cylinder and extends along a portion of a wall surface of the intake port where the intake valve protrudes, or is projected out from the imaginary plane toward the combustion chamber.

Abstract: An internal combustion engine has multiple cylinders each provided with multiple injectors. A fuel supply pipe device includes multiple fuel passages, which receive fuel through multiple fuel paths and supply the fuel correspondingly to the multiple injectors. The multiple fuel passages are separated respectively from the multiple fuel passages.

Abstract: A combustion chamber side end portion of a fuel injection valve is placed at a location that overlaps with an imaginary plane, which is perpendicular to a center axis of a cylinder and extends along a portion of a wall surface of an intake port where an intake valve protrudes, or is projected out from the imaginary plane toward a combustion chamber. Alternatively, a center of a fuel injecting side end port of the fuel injection valve, which injects fuel into intake air that flows in a branch port branched from the intake port, may be placed on the center axis side of the intake valve in a radial direction of the cylinder. Further alternatively, an upstream side fuel injection valve may inject fuel into intake air that flows in the intake port, and a downstream side fuel injection valve may inject fuel into intake air that flows in the branch port branched from the intake port.

Abstract: A controller that controls ON/OFF of switching elements and opening/closing of an opening/closing unit based on currents detected by current detectors. The controller includes a fault detector that detects whether any of the switching elements has a short-circuit fault and outputs a signal indicating a detection result, an ON/OFF controller that sets one of the switching elements that constitutes a phase other than a first phase that involves the short-circuit fault to an ON operation state and outputs a signal for opening the opening/closing unit, and an opening/closing controller that opens an opening/closing unit connected to a third phase other than the first phase and the second phase in which one of the switching elements is set to the ON operation state by the ON/OFF controller.

Abstract: In an exhaust gas purification system for an internal combustion engine, a NOx selective reduction catalyst for reducing NOx with ammonia that is adsorbed on the NOx selective reduction catalyst is disposed in an exhaust passage of the engine. In the NOx selective reduction catalyst, ammonia in a first adsorption state that is adsorbed at a low temperature and ammonia in a second adsorption state that is adsorbed at a high temperature are present. Because ammonia, which has been in the first adsorption state and which is desorbed from the NOx selective reduction catalyst, tends to be discharged to the atmosphere, a control section that estimates an adsorption amount of ammonia in the first adsorption state is provided in the exhaust gas purification system for the internal combustion engine in order to control the adsorption amount of ammonia in the first adsorption state within a specified level.

Abstract: A valve member of a pressure relief valve has a shaft portion, a pressure receiving portion, and a guide portion, wherein the valve member is axially movable in a fuel return passage. When a forward end of the shaft portion is seated on a valve seta, the fuel return passage is closed, while the shaft portion is separated from the valve seat the fuel return passage is opened. A notched portion is formed at an outer wall of the guide portion to thereby form an outer-surface passage. A fuel inlet port is formed in the valve member for communicating a fuel inlet chamber to the fuel return passage at a downstream side of the valve member.

Abstract: An exhaust gas purifying catalyst wherein the catalytic activity can be recovered over a wide temperature range is provided. Also provided are a method for recovering an exhaust gas purifying catalyst, and a catalyst system for exhaust gas purification. The exhaust gas purifying catalyst is characterized by containing an oxide A containing an oxide (A-1) containing an alkaline earth metal and/or a rare earth metal and an inorganic oxide (A-2), and a noble metal B supported by the oxide A. This exhaust gas purifying catalyst is also characterized in that the weight ratio of the oxide (A-1) containing an alkaline earth metal and/or a rare earth metal to the noble metal B is from 1:10 to 1:500.

Abstract: A fuel supply system supplies composite fuel containing alcohol and gasoline to multiple cylinders of an internal combustion engine. The composite fuel includes main-fuel and sub-fuel. The sub-fuel is lower than main-fuel in concentration of alcohol. Each of multiple first fuel injection valves is provided to each of the cylinders for injecting fuel. Each of multiple second fuel injection valves is provided to each of the cylinders for injecting fuel. A fuel inlet portion supplies at least sub-fuel to each of the first fuel injection valves and each of the second fuel injection valves. A selector control unit selects one of main-fuel and sub-fuel supplied through the fuel inlet portion to each of the first fuel injection valves.

Abstract: The present invention provides an antitumor agent and the like, which comprises as an active ingredient, a pyrimidine derivative represented by Formula (I): [wherein —X—Y—Z— represents —O—CR3?N— (wherein R3 represents a hydrogen atom, a substituted or unsubstituted aromatic heterocyclic group and the like) and the like, R1 represents —NR10R11 (wherein R10 and R11 may be the same or different, and each represents a hydrogen atom, substituted or unsubstituted lower alkyl and the like) and the like, R2 represents —NR13R14 (wherein R13 and R14 may be the same or different, and each represents a hydrogen atom, substituted or unsubstituted lower alkyl and the like)] or a pharmaceutically acceptable salt thereof.