Patent application number | Description | Published |
20120192634 | ABNORMALITY DETERMINATION DEVICE FOR AIR-FUEL RATIO SENSOR - An abnormality determination device for an air-fuel ratio sensor includes a differential value calculator and an abnormality determiner. The differential value calculator is configured to calculate a differential value of an output value of the air-fuel ratio sensor which is configured to detect an air-fuel ratio of exhaust gas. The abnormality determiner is configured to determine abnormality of the air-fuel ratio sensor based on a result of comparison between a reference output value of the air-fuel ratio sensor and a predetermined threshold. The reference output value is obtained by the air-fuel ratio sensor when the differential value calculated by the differential value calculator becomes a predetermined value. | 08-02-2012 |
20120310512 | ABNORMALITY DETERMINING APPARATUS FOR AIR-FUEL RATIO SENSOR - An abnormality determining apparatus includes an air-fuel ratio controller, an output change period parameter calculator, an output change amount extremum calculator, and an abnormality determining device. The abnormality determining device is configured to determine an abnormality of an air-fuel ratio sensor based on a relationship between an output change period parameter and an output change amount extremum. | 12-06-2012 |
20130054112 | APPARATUS FOR CONTROLLING AIR-FUEL RATIO OF INTERNAL-COMBUSTION ENGINE - An apparatus for controlling an air-fuel ratio of an internal-combustion engine includes an air-fuel ratio detector, a fluctuation signal generating device, an air-fuel ratio fluctuation device, a 0.5th-order frequency component strength calculator, a fluctuation frequency component strength calculator, a reference component strength calculator, and an imbalance fault determining device. The reference component strength calculator is configured to calculate strength of a reference component in accordance with strength of a first frequency component and strength of a second frequency component. The imbalance fault determining device is configured to make a determination of an imbalance fault in which air-fuel ratios of a plurality of cylinders vary beyond a tolerance limit on a basis of a relative relationship between strength of the 0.5th-order frequency component and the strength of the reference component. | 02-28-2013 |
Patent application number | Description | Published |
20120270693 | LUBRICANT OIL, FRICTION MEMBER, AND GEAR-TYPE DIFFERENTIAL WITH DIFFERENTIAL LIMITING FUNCTION - A lubricating oil used in a friction-type drive power transmission apparatus which includes: at least one of two additives; a first additive selected from at least one of an aliphatic amine having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 1) and an aliphatic amine ethylene oxide adduct having a saturated or unsaturated hydrocarbon group with a carbon number of 12 to 20 (Chemical Formula 2). | 10-25-2012 |
20130186727 | CLUTCH PLATE AND METHOD OF PRODUCING SAME - A clutch plate in an annular shape, the clutch plate includes: a plurality of lubricating grooves on one end face and the other end face of the clutch plate in an axial direction; and a plurality of windows passing through the clutch plate in the axial direction. The lubricating grooves are formed with plastic deformation, in a same phase on both the end faces, and extended up to outer peripheral edges and inner peripheral edges of both the end faces. A plurality of intersection points where the lubricating grooves intersect with each other are positioned in other areas than at least one of the outer peripheral edges, radially outer edges of the windows, radially inner edges of the windows, and the inner peripheral edges, of both the end faces. | 07-25-2013 |
20140027236 | FRICTION CLUTCH PLATE, FRICTION CLUTCH AND DRIVING FORCE TRANSMISSION APPARATUS - A clutch plate arranged to face a contact object so as to be relatively rotatable and relatively movable includes a contact surface being able to contact the contact object via lubricant and a minute groove open at the contact surface and formed of a plurality of groove portions having a predetermined groove pitch. A ratio of a contact area of the contact surface to an area obtained by adding an opening area of the minute groove to the contact area of the contact surface is 90% to 96% in an initial state. | 01-30-2014 |
20140131160 | CLUTCH PLATE, CLUTCH UNIT AND DRIVING FORCE TRANSMISSION SYSTEM - An annular wet clutch plate has lubrication grooves formed of multiple grooves in at least one of both axial end faces, the at least one of the both end faces having the lubrication grooves and a frictional engagement surface. The frictional engagement surface has a plurality of small grooves having a width and a depth that are smaller than those of the lubrication grooves. At least one of the small grooves is extended in a direction that crosses a circumferential direction of the annular clutch plate. A mean value of surface roughness of the frictional engagement surface having the small grooves is from 3.0 μm to 4.0 μm when the surface roughness is measured with the use of Rz at three positions that are offset from each other by 120° in the circumferential direction around a central axis of the annular clutch plate. | 05-15-2014 |
20140182995 | CLUTCH PLATE - In a clutch plate of an annular shape and a wet type, a plurality of lubrication grooves each taking a U-shape in cross-section are formed on a friction engaging surface on at least one end side. The groove is provided with a groove forming portion crossing the circumferential direction and blunt portions extending along both sides of the groove forming portion and connecting the friction engaging surface with the groove forming portion. Where a straight line passing across one side end of the groove and extending in a radial direction is assumed as a virtual straight line, in a section of the groove taken along a plane that is orthogonal to the virtual straight line and that includes the one side end, the width of the blunt portion on one side is in a range of 0.12 to 0.35 mm, and the depth of the blunt portion is in a range of 25 to 50 μm. | 07-03-2014 |
20140197003 | SLIDING MEMBER, CLUTCH PLATE, AND PRODUCTION METHODS THEREOF - A sliding member includes a base material portion formed of steel; a nitrogen diffusion layer with a thickness of 10 μm to 50 μm; and a nitrogen compound layer with a thickness of 10 μm to 50 μm. The nitrogen compound layer and the nitrogen diffusion layer are formed by performing a first heating process of performing heat treatment on a material formed of steel in an ammonia atmosphere at a temperature of 570° C. to 660° C., a second heating process of performing heat treatment on the material in a non-oxidizing and non-ammonia atmosphere at a temperature of 660° C. to 690° C., the temperature in the second heating process being higher than the temperature in the first heating process, and an oil cooling process of performing oil cooling treatment at an oil temperature of 60° C. to 80° C. subsequently to the second heating process. | 07-17-2014 |
Patent application number | Description | Published |
20150283732 | SEPARATION DEVICE AND SEPARATION METHOD - A separation device includes a first shredding unit, a first separation unit, a second shredding unit, and a second separation unit. The first shredding unit shreds a processing target containing a first material and a second material. The first separation unit rotates a first tubular portion in a state in which the processing target shredded by the first shredding unit is accommodated therein, thereby separating the second material passing through first holes from the processing target. The second shredding unit shreds the processing target from which the second material passing through the first holes is separated by the first separation unit. The second separation unit rotates a second tubular portion in a state in which the processing target shredded by the second shredding unit is accommodated therein, thereby separating the second material passing through second holes from the processing target. | 10-08-2015 |
20150283733 | SEPARATION DEVICE - A separation device includes a first shredding unit, a first separation unit, and a first ridge. The first shredding unit shreds a processing target containing a first material and a second material. The first separation unit rotates a first tubular portion in a state in which the processing target shredded by the first shredding unit is accommodated therein, thereby separating the second material passing through first holes from the processing target. The first ridge is provided on an inner circumferential surface of the first tubular portion, and extends in a direction in which the central axis of the first tubular portion extends. | 10-08-2015 |
20150283734 | SEPARATION DEVICE - A separation device includes a first shredding unit, a first separation unit, and a first air pipe. The first shredding unit shreds a processing target containing a first material and a second material. The first separation unit rotates a first tubular portion in a state in which the processing target shredded by the first shredding unit is accommodated therein, thereby separating the second material passing through first holes from the processing target. The first air pipe transfers the processing target shredded by the first shredding unit to the first separation unit with air pressure. The first air pipe has a first portion that extends in a first direction, and a second portion that is connected to the first portion on a downstream side of the first portion and that extends in a second direction substantially orthogonal to the first direction. | 10-08-2015 |