Abstract: A glow plug driving control apparatus. The glow plug driving control apparatus includes a glow switch 2 and a glow plug 1 which are connected in series between a power supply and ground, and an electrical controlling unit 101 which controls opening and closing of the glow switch 2, and that can perform energization driving of the glow plug 1. The glow plug driving apparatus also includes an energization path switching switch 5 that connects in series a stability coil 3 in a serial connection path of the glow switch 2 and the glow plug 1 at the time of an energization start of the glow plug 1, and after the energization start, causes both the glow switch 2 and the glow plug 1 to return to a serial connection state between the power supply and the ground.

Abstract: The presence or absence of degradation and abnormality is determined with high reliability by measuring a resistance value of a glow plug, which is in an operating state, as a latest resistance value. A method then determines whether or not the rate of the change of the latest resistance value with respect to an initial resistance value of the glow plug exceeds a first predetermined value. The method also determines whether or not the rate of the change of the latest resistance value with respect to a last resistance value that is a resistance value of the glow plug, which has been recently measured at the time of the acquisition of the latest resistance value, exceeds a second predetermined value when the rate of change of the latest resistance value with respect to the initial resistance value of the glow plug exceeds the first predetermined value.

Abstract: The accuracy in controlling the heating temperature of a glow plug and the reliability of the control operation are improved. An electronic control unit 101 is configured such that a standard applied voltage for glow plugs 50-1 to 50-n is set according to the engine speed and the load conditions of the engine. In addition, a correction coefficient set in advance according to the temperature classification of the mounted glow plugs 50-1 to 50-n is readably stored in the electronic control unit 101 as a correction coefficient map. By multiplying the standard applied voltage by a correction coefficient K read from the correction coefficient map and applying a voltage of the multiplication result to the glow plugs 50-1 to 50-n as a driving voltage through the power circuit 102 to perform driving control, stable and reliable heating temperature control can be realized regardless of variations in the heating temperature characteristics.

Abstract: Disclosed is a glow plug diagnosis method of being able to diagnose the aging or fault of a glow plug without being affected by cooling associated with air intake/exhaust or fuel injection, the method including: a step (S102) of energizing a glow plug 1 in a predetermined manner when a key switch 11 of a vehicle is turned on; and a step (S106) of measuring the resistance value of the glow plug 1 when the energization of the glow plug 1 is started, and the resistance value of the glow plug when the energization of the glow plug 1 is started and then a change in the resistance value is saturated, and of calculating a change in the resistance value over time as a resistance value gradient, in which it is determined that the glow plug 1 is normal when the resistance value gradient exceeds a predetermined first gradient reference value a, and it is determined that the glow plug 1 is faulty, and a warning lamp or the like is lighted when the resistance value gradient is less than a predetermined second gradient ref

Abstract: A glow plug is provided that can be easily determined as to whether or not it is a new article. An additional circuit formed by connecting a diode, a fuse, and an adjusting resistor in series in this order is connected in parallel to a heating element of a glow plug. The diode is provided so as to have an anode located on the positive electrode side of the heating element and a cathode located on the fuse side. In the case of a unit inspection, by applying a positive voltage for test to a heating element negative electrode connecting portion, it is possible to determine whether or not the glow plug is normal without blowing the fuse before the glow plug is used in a vehicle.

Abstract: To suppress current fluctuations upon commencement of driving and prolong lifespan by reducing electric stress caused by current fluctuations. A glow plug 1, a glow switch 2, and a stabilizing coil 3 are series-connected, and upon commencement of the driving of the glow plug 1, a repetition frequency of PWM signals that control the opening and closing of the glow switch 2 is made into a higher frequency than a repetition frequency in a normal drive state and the opening and closing of the glow switch 2 is controlled (S104), and when a predetermined drive shift condition has been met (S106), the repetition frequency of the PWM signals is returned to the frequency during normal driving and the opening and closing of the glow switch 2 is controlled (S108), whereby the current upon commencement of driving is smoothed and the occurrence of an instantaneous large current is suppressed.

Abstract: An engine room is disposed rearward of a cab. An engine is disposed inside the engine room. A first exhaust processing device and a second exhaust processing device are disposed over the engine. An air cleaner is disposed in the engine room in front of the first exhaust processing device and the second exhaust processing device. A tank is disposed between the cab and the air cleaner in the vehicle front-back direction. A rear surface of the tank has a lower rear surface part and an upper rear surface part. The upper rear surface part is disposed above the lower rear surface part and is positioned forward of the lower rear surface part. At least a portion of the air cleaner is disposed facing the upper rear surface part.

Abstract: A vehicle body cover of a work vehicle is provided with an outside ventilation cover part and an inside ventilation cover part. The outside ventilation cover part has outside ventilation holes that communicate with an external space. The outside ventilation cover part is disposed in an inclined manner with respect to the vertical direction. The inside ventilation cover part is disposed to face the outside ventilation holes on the inside of the outside ventilation cover part. The inside ventilation cover part has a rain gutter part and a ventilation part. The rain gutter part is configured to receive water entering from the outside ventilation holes. The ventilation part has inside ventilation holes that communicate with a space on the inside of the inside ventilation cover part. The ventilation part is disposed above the rain gutter part.

Abstract: A wheel loader includes an engine, an engine compartment, an injection device, a top plate and a first guide member. The injection device is disposed in the engine compartment. The top plate has a ventilation part. The ventilation part is disposed in a position horizontally away from the injection device. The first guide member has a guide body. The guide body is disposed along the top plate to direct air existing over the injection device to the ventilation part.

Abstract: An engine room is disposed rearward of a cab. An engine is disposed inside the engine room. A first exhaust processing device and a second exhaust processing device are disposed over the engine. An air cleaner is disposed in the engine room in front of the first exhaust processing device and the second exhaust processing device. A tank is disposed between the cab and the air cleaner in the vehicle front-back direction. A rear surface of the tank has a lower rear surface part and an upper rear surface part. The upper rear surface part is disposed above the lower rear surface part and is positioned forward of the lower rear surface part. At least a portion of the air cleaner is disposed facing the upper rear surface part.

Abstract: A plasma abatement process for abating effluent containing compounds from a processing chamber is described. A plasma abatement process takes gaseous foreline effluent from a processing chamber, such as a deposition chamber, and reacts the effluent within a plasma chamber placed in the foreline path. The plasma dissociates the compounds within the effluent, converting the effluent into more benign compounds. Abating reagents may assist in the abating of the compounds. The abatement process may be a volatizing or a condensing abatement process. Representative volatilizing abating reagents include, for example, CH4, H2O, H2, NF3, SF6, F2, HCl, HF, Cl2, and HBr. Representative condensing abating reagents include, for example, H2, H2O, O2, N2, O3, CO, CO2, NH3, N2O, CH4, and combinations thereof.

Abstract: A spherical body polishing apparatus capable of reducing polishing costs includes a rotating disk having a rotating disk polishing surface and a fixed disk having a fixed disk polishing surface opposed to the rotating disk polishing surface. The rotating disk polishing surface is capable of relative rotation while keeping being opposed to the fixed disk polishing surface. The rotating disk polishing surface has a groove portion formed therein and extending circumferentially along the rotation. The rotating disk having the groove portion therein includes an abrasive grain layer having a higher hardness than that of a material ball which is a spherical body and a holding layer formed on the abrasive grain layer and having a lower hardness than that of the abrasive grain layer. The groove portion is formed to penetrate the holding layer in a depth direction and to reach the abrasive grain layer.

Abstract: A storage apparatus includes: a plurality of microprocessors; a plurality of storage areas formed into a drive group constituted from a plurality of physical drives; and a control unit for managing one of the microprocessors, which takes charge of data input to and output from one or more storage areas of the plurality of storage areas, as a microprocessor having ownership of the one or more storage areas; wherein the microprocessor executes dump processing for having an external physical drive store data of the one or more storage areas, for which the microprocessor takes charge of the data input and output, in response to a received I/O request; and wherein the control unit transfers the ownership of the microprocessor according to processing load bias of the dump processing which the plurality of microprocessors take charge of.

Abstract: A storage apparatus includes: a plurality of microprocessors; a plurality of storage areas formed into a drive group constituted from a plurality of physical drives; and a control unit for managing one of the microprocessors, which takes charge of data input to and output from one or more storage areas of the plurality of storage areas, as a microprocessor having ownership of the one or more storage areas; wherein the microprocessor executes dump processing for having an external physical drive store data of the one or more storage areas, for which the microprocessor takes charge of the data input and output, in response to a received I/O request; and wherein the control unit transfers the ownership of the microprocessor according to processing load bias of the dump processing which the plurality of microprocessors take charge of.

Abstract: A glow plug driving control apparatus. The glow plug driving control apparatus includes a glow switch 2 and a glow plug 1 which are connected in series between a power supply and ground, and an electrical controlling unit 101 which controls opening and closing of the glow switch 2, and that can perform energization driving of the glow plug 1. The glow plug driving apparatus also includes an energization path switching switch 5 that connects in series a stability coil 3 in a serial connection path of the glow switch 2 and the glow plug 1 at the time of an energization start of the glow plug 1, and after the energization start, causes both the glow switch 2 and the glow plug 1 to return to a serial connection state between the power supply and the ground.

Abstract: A wheel loader includes a cooling chamber, which houses a cooling fan and a cooling device, and a grill through which a cooling air obtained by the cooling fan passes. The grill includes a frame, which is provided by framing four side components, and a ventilation portion, which is made of a punching metal and which also has a plurality of air intakes. The ventilation portion is provided inside the frame, and it is a stepwise member with vertically arranged steps that are created by plastic working the punching metal. The ventilation portion has a three-dimensionally curved surface that bulges bidirectionally toward an outside of the cooling chamber.

Abstract: It is possible to determine the presence or absence of the degradation and abnormality of a glow plug with high reliability using a relatively simply procedure.

Abstract: An inspection method of a rolling element includes the steps of: projecting an X-ray from a light source to a rolling element, detecting the X-ray passing through the rolling element by a detector, calculating data of the detected X-ray to form an image, and detecting a defect in the rolling element based on the image. At the step of projecting an X-ray, the light source rotates relatively around the rolling element while the X-ray is projected to an entire region of the rolling element facing the light source. At the step of forming an image, data of the X-ray for one circuit around the rolling element is calculated to generate the image.

Abstract: The accuracy in controlling the heating temperature of a glow plug and the reliability of the control operation are improved. An electronic control unit 101 is configured such that a standard applied voltage for glow plugs 50-1 to 50-n is set according to the engine speed and the load conditions of the engine. In addition, a correction coefficient set in advance according to the temperature classification of the mounted glow plugs 50-1 to 50-n is readably stored in the electronic control unit 101 as a correction coefficient map. By multiplying the standard applied voltage by a correction coefficient K read from the correction coefficient map and applying a voltage of the multiplication result to the glow plugs 50-1 to 50-n as a driving voltage through the power circuit 102 to perform driving control, stable and reliable heating temperature control can be realized regardless of variations in the heating temperature characteristics.

Abstract: There is provided a new glow plug that can be easily determined as to whether or not it is a new article. An additional circuit 12 formed by connecting a diode 13, a fuse 14, and an adjusting resistor 15 in series in this order is connected in parallel to a heating element 11 of a glow plug 1. The diode 13 is provided so as to have an anode located on the positive electrode side of the heating element 11 and a cathode located on the fuse 14 side. In the case of a unit inspection, by applying a positive voltage for test to a heating element negative electrode connecting portion 3a, it is possible to determine whether or not the glow plug 1 is normal without blowing the fuse 14 before the glow plug 1 is used in a vehicle.