Abstract: An ionization probe connection jig used to connect an outlet-side flow path of a column 113 and an inlet-side flow path of an ionization probe 211 in a liquid chromatograph, the ionization probe connection jig includes: a first element fixture 10 fixed to a first element 113 that is one of the column 113 and the ionization probe 211; a second element fixture 20 fixed to a second element 211 that is the other; and a movement regulating tool 30 that permits the first element fixture 10 to advance in an axial direction of the first element 113 while regulating the first element 113 or the first element fixture 10 and the second element 211 or the second element fixture 20 such that flow paths of the first element 113 and the second element 211 are matched with each other, and regulates the second element fixture 20 such that the second element fixture 20 does not retreat beyond a predetermined position in a axial direction of the second element 211.

Abstract: A liquid chromatograph includes a column 13, a liquid sending unit 11 configured to send a mobile phase to the column 13 at a pressure higher than atmospheric pressure, a first pipe 201a having one end connected to an outlet of the column 13, and a second pipe 201b having one end connected to an end face at the other end of the first pipe 201a with a connection gap sandwiched between the one end of the second pipe and end face, the second pipe 201b having the other end disposed in an ionization chamber 20 having a pressure less than or equal to atmospheric pressure. The liquid chromatograph charges a component of a sample contained in a liquid flowing out from the column 13 by applying voltage to the connection gap, and inner diameters and lengths of the first pipe 201a and the second pipe 201b are determined such that the liquid flowing out from the column 13 passes through the connection gap while maintaining pressure greater than or equal to a saturated vapor pressure of the mobile phase.

Abstract: A control device estimates a leakage gas amount with respect to gas that leaks to an upstream side from a downstream side of a fresh air introduction valve when the fresh air introduction valve is closed. If the leakage gas amount is equal to or greater than a predetermined value when there is a request to open the fresh air introduction valve, a target opening degree of the fresh air introduction valve is determined based on the engine speed and intake pressure, and also a correction opening degree with respect to the target opening degree is calculated based on the leakage gas amount. The fresh air introduction valve is opened to an opening degree greater than the target opening degree by an amount corresponding to the correction opening degree, to thereby cause leakage gas that is accumulated in a fresh air introduction passage to flow into an intake passage together with a required amount of fresh air.

Abstract: In the mass spectrometer system, a tip portion of a cylindrical portion (891) of a capillary (89) is coated with a coating material (892), the tip portion being an injection part for injecting a sample solution to an ionization section. Therefore, it is possible to suppress, by the coating material (892), the deformation of the capillary (89) when the sample solution is injected. In addition, it is possible to suppress the corrosion and the deformation of the capillary (89) by the coating material (892). As a result, the stability of the analysis operation in mass spectrometer system (1) can be improved.

Abstract: Provided is an ion analyzer characterized by: an ionization chamber (10) to be maintained at atmospheric pressure; an analysis chamber (11) for analyzing an ion generated in the ionization chamber (10); a vacuum pump (15, 16) for evacuating the inside of the analysis chamber (11); a capillary (102) for allowing the ionization chamber (10) and the analysis chamber (11) to communicate with each other; a conductance changer (103, 104) for changing the conductance of the capillary (102); and a controller (20) for operating the conductance changer (103, 104) in such a manner as to decrease the conductance of the capillary (102) when the degree of vacuum in the analysis chamber (11) is lower than a predetermined degree of vacuum.

Abstract: An apparatus for detecting inter-cylinder air-fuel ratio imbalance in an engine is provided. The apparatus includes a turbocharger, a bypass passage configured to bypass a turbine of the turbocharger, a waste gate valve configured to selectively close the bypass passage, an air-fuel ratio sensor installed in a portion of an exhaust passage which portion is located on a downstream side of a junction between a downstream side of the turbine and a downstream side of the bypass passage, and a determination unit programmed to compare a value of a degree of fluctuation in an output from the air-fuel ratio sensor or a parameter correlated therewith with a predetermined threshold to perform inter-cylinder air-fuel ratio imbalance determination. The determination unit is programmed not to perform the imbalance determination when an opening degree of the waste gate valve is equal to or higher than a predetermined reference value.

Abstract: A control device estimates a leakage gas amount with respect to gas that leaks to an upstream side from a downstream side of a fresh air introduction valve when the fresh air introduction valve is closed. If the leakage gas amount is equal to or greater than a predetermined value when there is a request to open the fresh air introduction valve, a target opening degree of the fresh air introduction valve is determined based on the engine speed and intake pressure, and also a correction opening degree with respect to the target opening degree is calculated based on the leakage gas amount. The fresh air introduction valve is opened to an opening degree greater than the target opening degree by an amount corresponding to the correction opening degree, to thereby cause leakage gas that is accumulated in a fresh air introduction passage to flow into an intake passage together with a required amount of fresh air.

Abstract: A supercharged internal combustion engine according to the present invention includes: a compressor arranged in an intake passage through which air that is taken into a combustion chamber flows and for supercharging intake air; an EGR passage that connects an exhaust passage through which exhaust gas that is discharged from the combustion chamber flows and a compressor upstream passage; an EGR valve for opening and closing the EGR passage; an intake bypass passage for releasing gas that has been supercharged by the compressor outside a compressor downstream passage; and an ABV for opening the intake bypass passage by opening when the gas that has been supercharged by the compressor is released outside the compressor downstream passage. The intake bypass passage connects the compressor downstream passage with the EGR passage on the side that is closer to the compressor upstream passage relative to the EGR valve.

Abstract: An ionization chamber 100 is provided between a liquid chromatograph unit 60 and a mass spectrometer 50, and is formed of: an atomization means 15; and an ion introducing pipe 19 of which the entrance portion is created within the ionization chamber 100 in the horizontal direction that is perpendicular to the Z direction and of which the exit portion is created within the mass spectrometer unit 50. A liquid sample that has been fed from the liquid chromatograph unit 60 is sprayed in the Z direction by the atomization means 15 while being ionized within the ionization chamber 100, wherein the entrance portion has an opening in such a form that corresponds to the spread in the XY plane of the liquid sample sprayed in the Z direction. The sprayed liquid sample is then fed into the mass spectrometer unit 50 while being desolvated, which effectively contributes to analysis.

Abstract: A supercharged internal combustion engine according to the present invention includes: a compressor arranged in an intake passage through which air that is taken into a combustion chamber flows and for supercharging intake air; an EGR passage that connects an exhaust passage through which exhaust gas that is discharged from the combustion chamber flows and a compressor upstream passage; an EGR valve for opening and closing the EGR passage; an intake bypass passage for releasing gas that has been supercharged by the compressor outside a compressor downstream passage; and an ABV for opening the intake bypass passage by opening when the gas that has been supercharged by the compressor is released outside the compressor downstream passage. The intake bypass passage connects the compressor downstream passage with the EGR passage on the side that is closer to the compressor upstream passage relative to the EGR valve.

Abstract: An ECU determines whether or not an engine water temperature has exceeded a predetermined value; and actively opens and closes a wastegate valve, and calculates a shift in a learning value amount. The ECU determines whether or not the learning value shift amount is sufficiently large to surpass a predetermined value and when the determination result is Yes (when the condition is fulfilled), takes in the learning value shift. The ECU determines whether or not the engine water temperature is sufficiently low to be below a predetermined value and reflects the learning value shift in the air-fuel ratio learning value.

Abstract: An ionization chamber 100 is provided between a liquid chromatograph unit 60 and a mass spectrometer 50, and is formed of: an atomization means 15; and an ion introducing pipe 19 of which the entrance portion is created within the ionization chamber 100 in the horizontal direction that is perpendicular to the Z direction and of which the exit portion is created within the mass spectrometer unit 50. A liquid sample that has been fed from the liquid chromatograph unit 60 is sprayed in the Z direction by the atomization means 15 while being ionized within the ionization chamber 100, wherein the entrance portion has an opening in such a form that corresponds to the spread in the XY plane of the liquid sample sprayed in the Z direction. The sprayed liquid sample is then fed into the mass spectrometer unit 50 while being desolvated, which effectively contributes to analysis.

Abstract: An apparatus for detecting inter-cylinder air-fuel ratio imbalance in an engine is provided. The apparatus includes a turbocharger, a bypass passage configured to bypass a turbine of the turbocharger, a waste gate valve configured to selectively close the bypass passage, an air-fuel ratio sensor installed in a portion of an exhaust passage which portion is located on a downstream side of a junction between a downstream side of the turbine and a downstream side of the bypass passage, and a determination unit programmed to compare a value of a degree of fluctuation in an output from the air-fuel ratio sensor or a parameter correlated therewith with a predetermined threshold to perform inter-cylinder air-fuel ratio imbalance determination. The determination unit is programmed not to perform the imbalance determination when an opening degree of the waste gate valve is equal to or higher than a predetermined reference value.

Abstract: An ECU determines whether or not an engine water temperature has exceeded a predetermined value; and actively opens and closes a wastegate valve, and calculates a shift in a learning value amount. The ECU determines whether or not the learning value shift amount is sufficiently large to surpass a predetermined value and when the determination result is Yes (when the condition is fulfilled), takes in the learning value shift. The ECU determines whether or not the engine water temperature is sufficiently low to be below a predetermined value and reflects the learning value shift in the air-fuel ratio learning value.

Abstract: A fuel injection control device for an internal combustion engine is provided, which comprises: a rpm sensor for detecting an engine speed; an intake pressure sensor for detecting an intake pressure; a throttle sensor for detecting the throttle opening degree; a first basic fuel injection volume calculating device for calculating a first basic fuel injection volume according to a fuel volume calculated by using the engine speed and the intake pressure as parameters; a second basic fuel injection volume calculating device for calculating a second basic fuel injection volume according to a fuel volume calculated by using the engine speed and the throttle opening degree as parameters; and a ratio calculating device for performing arithmetic operations on the first basic fuel injection volume and the second basic fuel injection volume at a desired mixture ratio, and the ratio calculating device gradually changes the mixture ratio at regular time intervals.

Abstract: To provide a fuel injection control device for an internal combustion engine which can suppress body vibrations, shocks, etc. and can control the fuel injection quantities during transitional periods easily and effectively in a simple manner.

Abstract: To provide a fuel injection control device for an internal combustion engine which can suppress body vibrations, shocks, etc. and can control the fuel injection quantities during transitional periods easily and effectively in a simple manner.

Abstract: A fuel injection control device for an internal combustion engine is provided, which comprises: a rpm sensor for detecting an engine speed; an intake pressure sensor for detecting an intake pressure; a throttle sensor for detecting the throttle opening degree; a first basic fuel injection volume calculating device for calculating a first basic fuel injection volume according to a fuel volume calculated by using the engine speed and the intake pressure as parameters; a second basic fuel injection volume calculating device for calculating a second basic fuel injection volume according to a fuel volume calculated by using the engine speed and the throttle opening degree as parameters; and a ratio calculating device for performing arithmetic operations on the first basic fuel injection volume and the second basic fuel injection volume at a desired mixture ratio, and the ratio calculating device gradually changes the mixture ratio at regular time intervals.

Abstract: An ignition control system is provided, which includes: an engine speed detector (101) for calculating an engine speed according to an engine crank angle signal (100); a current supply start controller (102) for outputting a proper current supply start timing signal corresponding to the engine speed to an ignition coil (5); a current supply finish controller (103) for outputting a proper current supply timing signal corresponding to the engine speed to an ignition coil; an ignition coil controller (104) for controlling supply of power to the ignition coil (5) according to the current supply start timing signal and the current supply finish timing signal; and an overspeed determination device (105) for outputting an overspeed determination signal when determining that the engine speed is in excess of a predetermined limit value. The overspeed determination signal prohibits starting the supply of current, and retards the current supply finish timing to such a degree as to decrease engine torque.

Abstract: A method of manufacturing a rotation sensor is provided. In the method, an insert conductor having a predetermined shape and having at least a connector terminal and a conversion device terminal is provided. The insert conductor is insert-molded in a resin base such that at least the connector terminal and the conversion device terminal of the insert conductor remain exposed from the resin base. A resin connector part is molded such that the resin connector part encircles the connector terminal. Also, a magnetoelectric conversion device is connected to the conversion device terminal of the insert conductor, and positioning parts are provided at a tip of the resin base. In addition, the magnetoelectric conversion device is sandwiched between the positioning parts to securely hold the magnetoelectric conversion device, and a press fit part is formed at the tip of the resin base.