Abstract: A control apparatus for use in an imaging system that includes a first correcting member movable for image stabilization and provided to one of an image pickup apparatus and a lens apparatus detachably attachable to the image pickup apparatus, and a second correcting member movable for the image stabilization and provided to the other of the image pickup apparatus and the lens apparatus acquires first correction ratios of the first correcting member and the second correcting member for angular shake of the imaging system, and second correction ratios of the first correcting member and the second correcting member for shift shake of the imaging system.

Abstract: An oil pump unit with a variable flow rate includes: an oil pump having an intake port and a discharge port and accommodating a pump rotor; and an oil path switching valve having oil inlets and oil outlets and opening/closing oil pressure return holes communicating with the discharge port, in which the oil path switching valve and the oil pump are separately disposed, the intake port and the discharge port are open to valve-mounting surfaces formed at the oil pump, and oil inlets and the oil outlet are open to body-mounting surfaces matching with the valve-mounting surfaces of the oil path switching valve.

Abstract: The engine with a variable flow rate oil pump includes a subsidiary relief passage that extends from an oil passage-switching valve to a subsidiary oil pump, a main relief passage that extends from the oil passage-switching valve to the main oil pump separately from the subsidiary relief passage, and a check valve that is provided in the subsidiary discharge passage and cuts off the flow of oil from the main discharge passage side to the oil passage-switching valve side. The oil passage-switching valve has a main pressure-adjusting chamber for the main oil pump, a subsidiary pressure-adjusting chamber of for the subsidiary oil pump, and a spool valve that performs partitioning between the main pressure-adjusting chamber and the subsidiary pressure-adjusting chamber.

Abstract: In an engine having an oil pump wherein an oil filter is incorporated into the oil pump without allowing the oil pump to become large in size. An oil pump and a hydraulic line changeover valve including a spool valve are disposed so as to have axes extending in parallel with each other. The oil pump has a plate-shaped oil filter disposed at a discharge port thereof. The plate-shaped oil filter is curved arcuately along an outer periphery of a pump rotor as viewed from a pump axial direction.

Abstract: An oil pump unit with a variable flow rate includes lubrication pumps and a control pump that are driven by rotation of a crankshaft of an engine, and changes an oil supply amount from the control pump to each part of the engine, in which the control pump includes a plurality of oil pumps that have different discharge rates.

Abstract: An internal combustion engine includes a crankshaft, a variable flow rate oil pump apparatus including oil pumps having a drive shaft thereof operatively connected with the crankshaft, and a rod-shaped oil passage switching valve operatively connected with the oil pumps. The oil passage switching valve and the drive shaft of the oil pumps are arranged such that axial directions thereof are parallel to an axial direction of the crankshaft. Also, the oil pumps and the oil passage switching valve are disposed so as to overlap each other in the axial direction of the crankshaft. With such configuration of the engine, the effect on various components around the pump can be reduced, while downsizing the oil pump and the engine.

Abstract: In an engine having an oil pump wherein an oil filter is incorporated into the oil pump without allowing the oil pump to become large in size. An oil pump and a hydraulic line changeover valve including a spool valve are disposed so as to have axes extending in parallel with each other. The oil pump has a plate-shaped oil filter disposed at a discharge port thereof. The plate-shaped oil filter is curved arcuately along an outer periphery of a pump rotor as viewed from a pump axial direction.

Abstract: The engine with a variable flow rate oil pump includes a subsidiary relief passage that extends from an oil passage-switching valve to a subsidiary oil pump, a main relief passage that extends from the oil passage-switching valve to the main oil pump separately from the subsidiary relief passage, and a check valve that is provided in the subsidiary discharge passage and cuts off the flow of oil from the main discharge passage side to the oil passage-switching valve side. The oil passage-switching valve has a main pressure-adjusting chamber for the main oil pump, a subsidiary pressure-adjusting chamber of for the subsidiary oil pump, and a spool valve that performs partitioning between the main pressure-adjusting chamber and the subsidiary pressure-adjusting chamber.

Abstract: A piston with transverse-rib through holes formed easily therein for reducing the cost of manufacturing. A piston includes a pair of mutually opposed longitudinal ribs individually formed with piston pin bosses interconnecting a pair of piston skirt portions on a back side of a piston head. A pair of transverse ribs interconnect the mutually opposed longitudinal ribs with the transverse ribs. The pair of transverse ribs are formed with transverse-rib through holes at places proximal to the back side of the piston head. A skirt opening is formed by cutting away a part of the piston skirt portion that is opposed to the transverse rib and faces the transverse-rib through hole.

Abstract: An internal combustion engine includes a crankshaft, a variable flow rate oil pump apparatus including oil pumps having a drive shaft thereof operatively connected with the crankshaft, and a rod-shaped oil passage switching valve operatively connected with the oil pumps. The oil passage switching valve and the drive shaft of the oil pumps are arranged such that axial directions thereof are parallel to an axial direction of the crankshaft. Also, the oil pumps and the oil passage switching valve are disposed so as to overlap each other in the axial direction of the crankshaft. With such configuration of the engine, the effect on various components around the pump can be reduced, while downsizing the oil pump and the engine.

Abstract: An oil pump unit with a variable flow rate includes lubrication pumps and a control pump that are driven by rotation of a crankshaft of an engine, and changes an oil supply amount from the control pump to each part of the engine, in which the control pump includes a plurality of oil pumps that have different discharge rates.

Abstract: An oil pump unit with a variable flow rate includes: an oil pump having an intake port and a discharge port and accommodating a pump rotor; and an oil path switching valve having oil inlets and oil outlets and opening/closing oil pressure return holes communicating with the discharge port, in which the oil path switching valve and the oil pump are separately disposed, the intake port and the discharge port are open to valve-mounting surfaces formed at the oil pump, and oil inlets and the oil outlet are open to body-mounting surfaces matching with the valve-mounting surfaces of the oil path switching valve.

Abstract: A piston with transverse-rib through holes formed easily therein for reducing the cost of manufacturing. A piston includes a pair of mutually opposed longitudinal ribs individually formed with piston pin bosses interconnecting a pair of piston skirt portions on a back side of a piston head. A pair of transverse ribs interconnect the mutually opposed longitudinal ribs with the transverse ribs. The pair of transverse ribs are formed with transverse-rib through holes at places proximal to the back side of the piston head. A skirt opening is formed by cutting away a part of the piston skirt portion that is opposed to the transverse rib and faces the transverse-rib through hole.

Abstract: In a coating film formation method in which the thermosetting water-borne color paint (A) is coated on the surface of the substrate, then a thermosetting water-borne paint containing color pigment and/or glittering pigment (B) is coated on said coated surface, and, after predrying as necessary, a thermosetting clear paint (C) is coated and after that said 3-layer coating films of (A), (B) and (C) are simultaneously cured by heating, the solid content of the wet coat is controlled by an air jet step in which the air, whose temperature and/or humidity are controlled, is jetted from behind the paint nozzle in approximately the same direction as the atomized particles of said thermosetting water color paint (A) move to the surface of the substrate, when said paint is coated, around the spray pattern so that the air touches said pattern.

Abstract: In a coating film formation method in which the thermosetting water-borne color paint (A) is coated on the surface of the substrate, then a thermosetting water-borne paint containing color pigment and/or glittering pigment (B) is coated on said coated surface, and, after predrying as necessary, a thermosetting clear paint (C) is coated and after that said 3-layer coating films of (A), (B) and (C) are simultaneously cured by heating, the solid content of the wet coat is controlled by an air jet step in which the air, whose temperature and/or humidity are controlled, is jetted from behind the paint nozzle in approximately the same direction as the atomized particles of said thermosetting water color paint (A) move to the surface of the substrate, when said paint is coated, around the spray pattern so that the air touches said pattern.