Abstract: Provided is an engine control device for controlling an opening degree of a valve adjusting a flow rate of an air-fuel mixture of an engine, wherein the opening degree is corrected based on an exhaust temperature deviation which is a deviation between a reference value and a current value of an exhaust temperature when controlling the opening degree.

Abstract: A substrate treatment apparatus includes: a plurality of solution treatment modules stacked at multiple stages, each configured to perform a treatment using a treatment solution on a substrate; and a solution supply unit configured to supply the treatment solution to the plurality of solution treatment modules, wherein: the solution supply unit includes supply pipelines provided with a solution feeder corresponding to the solution treatment modules; and the solution feeder includes a pump configured to pressure-feed the treatment solution to the corresponding solution treatment module and a filter configured to filtrate the treatment solution, and is arranged adjacent to the corresponding solution treatment module in a horizontal direction.

Abstract: An optical disc device capable of sensing exactly whether or not a disc is present is provided. In an optical disc device includes a main body having a disc slot, and a carrying roller for carrying a disc between the disc slot and a disc loading position of the main body, a swinging lever whose base end is supported turnably in an inside of the main body by a supporting shaft and to which a disc arriving switch is fixed, and a sensing lever whose base end is supported turnably by the supporting shaft and whose top end contacts the outer periphery of the disc, which is loaded in the disc loading position, to operate the disc arriving switch are provided.

Abstract: An optical disc device capable of sensing exactly whether or not a disc is present is provided. In an optical disc device includes a main body having a disc slot, and a carrying roller for carrying a disc between the disc slot and a disc loading position of the main body, a swinging lever whose base end is supported turnably in an inside of the main body by a supporting shaft and to which a disc arriving switch is fixed, and a sensing lever whose base end is supported turnably by the supporting shaft and whose top end contacts the outer periphery of the disc, which is loaded in the disc loading position, to operate the disc arriving switch are provided.

Abstract: When the load acting on a fluid motor (25) increases, a changeover valve (61) starts to be changed over toward a low-speed position L, but at this time an additional pilot fluid whose pressure is determined by the amount of fluid flowing into or out of a second passage (68) through first and second notches functions as a pressure regulator for a spool (65), and lowers the pressure within the second passage (68) without lowering the pressure within a high pressure-side main circuit (28), thereby tilting a swash plate (26) from a position of high-speed rotation to a position of low-speed rotation.

Abstract: When the load acting on a fluid motor (25) increases, a changeover valve (61) starts to be changed over toward a low-speed position L, but at this time an additional pilot fluid whose pressure is determined by the amount of fluid flowing into or out of a second passage (68) through first and second notches functions as a pressure regulator for a spool (65), and lowers the pressure within the second passage (68) without lowering the pressure within a high pressure-side main circuit (28), thereby tilting a swash plate (26) from a position of high-speed rotation to a position of low-speed rotation.

Abstract: A planetary gear apparatus comprising an inner tooth gear having an inner peripheral portion formed with a plurality of inner teeth each in the form of a semi-circular cross-section shape and an outer tooth gear positioned within the inner tooth gear and having an outer peripheral portion formed with a plurality of outer teeth each in the form of a wave shape. The outer tooth gear has a center axis offset at an offset amount from the center axis of the inner tooth gear, and revolvable while being held in sliding and meshing contact with the inner tooth gear with the center axis of the outer tooth gear moving on a revolution orbit encircling and spaced from the center axis of the inner tooth gear at a distance equal to the offset amount.

Abstract: A robot arm drive apparatus of an industrial robot comprising: an electric motor having a drive shaft; a first robot member having the electric motor mounted thereon; a second robot member rotatably supported on the first robot member; and reduction gears for reducing rotation of the electric motor and then transmitting to the second robot member; the reduction gears comprising a planetary reduction gear and furthermore an additional reduction gear which is purposely provided so that the number of rotations of the electric motor, at which the resonance of a drive system comprising the electric motor, the second robot member and the reduction gear means occurs, is shifted from a predetermined operational region of the electric motor.

Abstract: In articulation drive apparatus of an industrial robot which includes a first member (5) of the robot, a second member (12) of the robot freely rotatably supported on the first member and a reduction gear apparatus for reducing rotation of an electric motor integrally connected to the first member and transmitting the reduced rotation to the second member, the improvement wherein the reduction gear apparatus (3) comprises a primary reduction gear (20) for reducing the number of rotations of the electric motor (1) and a secondary planetary reduction gear (21) for further reducing the number of rotations of output of the primary reduction gear (20). Resonance phenomenon of the drive system is prevented by modifying the construction of the reduction gear apparatus used in the robot drive system, and furthermore, by using bar-shaped members (60), the robot is made small and light in weight and stands a relatively larger torsional rigidity.