Abstract: A crude oil extraction pump includes: a production pipe having a tubular shape along an axis extending in a vertical direction; a pump rotor extending in a direction of the axis inside the production pipe; and a pump stator which is provided between the production pipe and the pump rotor to surround the pump rotor, wherein the pump rotor includes a plurality of pump shafts which are sequentially connected in the direction of the axis, an impeller which rotates together with the pump shaft to pump crude oil upward, and a thrust collar which protruding radially outward from the pump shaft, and wherein the pump stator includes a tubular stator body and a thrust pad protruding radially inward from an inner peripheral surface of the stator body and supporting the thrust collar from below to be slidable in the circumferential direction.

Abstract: A cylindrical gap is formed between a production pipe and a pump stator, the pump stator has a tubular pump casing that surrounds a plurality of pump bodies, the pump casing is provided with a penetrating portion that penetrates the pump casing in a radial direction and communicates with the gap, and the penetrating portion is formed in a portion of the pump casing that faces a pump body, which is located in an intermediate stage of the plurality of pump bodies, in the radial direction.

Abstract: A cylindrical gap is formed between a production pipe and a pump stator, the pump stator has a tubular pump casing that surrounds a plurality of pump bodies, the pump casing is provided with a penetrating portion that penetrates the pump casing in a radial direction and communicates with the gap, and the penetrating portion is formed in a portion of the pump casing that faces a pump body, which is located in an intermediate stage of the plurality of pump bodies, in the radial direction.

Abstract: The pump includes a ring-shaped first inclined surface formed in a portion of a production pipe located above a motor stator and inclined in a direction toward a central axis of the production pipe with respect to a direction from an upper end to a lower end of the production pipe, and a ring-shaped second inclined surface that is formed outside a lower end portion of a pump stator constituting an inner element and comes into surface contact with the first inclined surface.

Abstract: A pressure-sensitive adhesive transfer tape that may have on one surface of a release substrate made of paper or a plastic film, a pressure-sensitive transfer layer having an adhesion inhibiting layer and an adhesive layer, wherein the adhesion inhibiting layer and the adhesive layer are successively stacked on one another. The adhesion inhibiting layer may prevent the adhesive layer formed on one adherend from being in contact with another adherend to weaken the adhesion between the one and another adherends, enabling the one and another adherends to be easily separated from each other. With the passage of time after being put on one another, the adhesion inhibiting layer may migrate to another adherend, so that the adherend is in contact with the adhesive layer, exhibiting strong adhesion properties between the adherends.

Abstract: A pressure-sensitive adhesive transfer tape that may have on one surface of a release substrate made of paper or a plastic film, a pressure-sensitive transfer layer having an adhesion inhibiting layer and an adhesive layer, wherein the adhesion inhibiting layer and the adhesive layer are successively stacked on one another. The adhesion inhibiting layer may prevent the adhesive layer formed on one adherend from being in contact with another adherend to weaken the adhesion between the one and another adherends, enabling the one and another adherends to be easily separated from each other. With the passage of time after being put on one another, the adhesion inhibiting layer may migrate to another adherend, so that the adherend is in contact with the adhesive layer, exhibiting strong adhesion properties between the adherends.

Abstract: Provided are a more useful pressure-sensitive adhesive transfer tape and a transferring implement, which are advantageous not only in that, immediately after adherends, such as paper, are put on one another, the adherends can be easily separated from each other and re-bonded together, but also in that, after a predetermined period of time has lapsed from the time when the adherends are put on one another, the adherends are strongly bonded to each other. A pressure-sensitive adhesive transfer tape having, on one surface of a release substrate having release layers formed on both surfaces of a paper or plastic film substrate, a pressure-sensitive transfer layer having an adhesion inhibiting layer made of a terpene or rosin resin or the like and an adhesive layer, wherein the adhesion inhibiting layer and the adhesive layer are successively stacked on one another, and a transferring implement having the same.

Abstract: A solar receiver is disposed on a top portion of a tower provided upright on the ground for heating a compressible working fluid by means of heat converted from sunlight collected by heliostats disposed on the ground, to raise the temperature of the compressible working fluid. The solar receiver has modules disposed back-to-back, and each of which includes a casing having a bottom plate to be fixed to the top-portion upper surface of the tower. A heat-transfer-tube unit is accommodated in the casing and includes heat transfer tubes. A sunlight inlet port having a circular shape in front view or an elliptical shape in front view is provided at the center portion of a plate-like member whose lower end is connected to an outer circumferential end of the bottom plate to constitute the casing and that extends obliquely upward from the outer circumferential end.

Abstract: In order to provide an abnormality detecting device for a heart assist device, a method for detecting an abnormality of a heart assist device and an abnormal state of a heart assist device detecting program which can early detect an abnormal state, the abnormality detecting device for a heart assist device according to the present invention includes a user information acquiring means for obtaining user information that indicates an operation state of the heart assist device implanted in a body of a user or a biological state of the user measured by the heart assist device and associating said user information with time to store in a history information storing means, and an abnormal state judging means for referring said history information storing means and judging whether or not an abnormal state is present based on a history of said user information.

Abstract: A solar receiver is disposed on a top portion of a tower provided upright on the ground for heating a compressible working fluid by means of heat converted from sunlight collected by heliostats disposed on the ground, to raise the temperature of the compressible working fluid. The solar receiver has modules disposed back-to-back, and each of which includes a casing having a bottom plate to be fixed to the top-portion upper surface of the tower. A heat-transfer-tube unit is accommodated in the casing and includes heat transfer tubes. A sunlight inlet port having a circular shape in front view or an elliptical shape in front view is provided at the center portion of a plate-like member whose lower end is connected to an outer circumferential end of the bottom plate to constitute the casing and that extends obliquely upward from the outer circumferential end.

Abstract: In order to provide an abnormality detecting device for a heart assist device, a method for detecting an abnormality of a heart assist device and an abnormal state of a heart assist device detecting program which can early detect an abnormal state, the abnormality detecting device for a heart assist device according to the present invention includes a user information acquiring means for obtaining user information that indicates an operation state of the heart assist device implanted in a body of a user or a biological state of the user measured by the heart assist device and associating said user information with time to store in a history information storing means, and an abnormal state judging means for referring said history information storing means and judging whether or not an abnormal state is present based on a history of said user information.