Abstract: To eliminate accumulation of air while preventing a decrease in pump efficiency, a pump is provided. The pump includes a rotary shaft, an impeller that is attached to the rotary shaft and that rotates with rotation of the rotary shaft, a casing that surrounds the rotary shaft, a shaft sealing device that seals a gap between the casing and the rotary shaft, and a baffle plate part that is located between the impeller and the shaft sealing device and attached to a rotating body. The baffle plate part extends in a direction that is inclined or orthogonal with respect to a surface orthogonal to an axial direction of the rotary shaft.

Abstract: To eliminate accumulation of air while preventing a decrease in pump efficiency, a pump is provided. The pump includes a rotary shaft, an impeller that is attached to the rotary shaft and that rotates with rotation of the rotary shaft, a casing that surrounds the rotary shaft, a shaft sealing device that seals a gap between the casing and the rotary shaft, and a baffle plate part that is located between the impeller and the shaft sealing device and attached to a rotating body. The baffle plate part extends in a direction that is inclined or orthogonal with respect to a surface orthogonal to an axial direction of the rotary shaft.

Abstract: The present invention relates to a reinforcing structure of a pump casing accommodating an impeller. A pump casing (8) includes: a volute hydro structure (22) having a discharge port (22a); a suction hydro structure (20) having a suction port (20a); and a rib (30) connected to outer surfaces of the volute hydro structure (22) and the suction hydro structure (20). The rib (30) has a curved outer edge (30A) which is curved toward the inside of the rib (30), and the curved outer edge (30A) is smoothly connected to the outermost peripheral surface (20b) of the suction hydro structure (20). A ratio of a radius of curvature (R1) of the curved outer edge (30A) to a radius of curvature (R2) of the outermost peripheral surface (20b) of the suction hydro structure (20) is 20% or more.

Abstract: The present invention relates to a reinforcing structure for a casing accommodating an impeller. A double-suction centrifugal pump includes: a rotational shaft (1); an impeller (2) secured to the rotational shaft (1); a casing (3) that accommodates the impeller (2) therein; and legs (5) secured to the casing (3). The casing (3) includes a suction volute (20) that communicates with a suction port (6), the casing (3) includes an upper casing (3a) and a lower casing (3b) fastened to each other, at least one rib (28A, 28B, 28C) is provided on each of both side surfaces of the lower casing (3b) constituting the suction volute (20), the rib (28A, 28B, 28C) extends in a radial direction of the rotational shaft (1) when viewed from an axial direction of the rotational shaft (1), and the rib (28A, 28B, 28C) is separated from the legs (5).

Abstract: The present invention relates to a reinforcing structure for a casing accommodating an impeller. A double-suction centrifugal pump includes: a rotational shaft (1); an impeller (2) secured to the rotational shaft (1); a casing (3) that accommodates the impeller (2) therein; and legs (5) secured to the casing (3). The casing (3) includes a suction volute (20) that communicates with a suction port (6), the casing (3) includes an upper casing (3a) and a lower casing (3b) fastened to each other, at least one rib (28A, 28B, 28C) is provided on each of both side surfaces of the lower casing (3b) constituting the suction volute (20), the rib (28A, 28B, 28C) extends in a radial direction of the rotational shaft (1) when viewed from an axial direction of the rotational shaft (1), and the rib (28A, 28B, 28C) is separated from the legs (5).

Abstract: A transfer layer is transferred well to a step portion. In a transfer mold body, a projection and indentation portion is formed to a front face of a bottom wall of a step portion. When covering a transfer film over a base member, air between the transfer film and the step portion is accordingly expelled from between indented portions of the projection and indentation portion and the transfer film at an edge portion of the bottom wall. The transfer film can accordingly be covered over the step portion whilst suppressing air from remaining between the transfer film and the step portion. A transfer layer of the transfer film can accordingly is transferred well to the front face of the step portion.

Abstract: A fuel cell assembly (1) for mounting in a vehicle comprises a fuel cell stack (2) comprising two stack units (2a, 2b) arranged in parallel. Each of the stack units (2a, 2b) comprises a number of fuel cells stacked in a fixed direction. The fuel cell stack (2) is housed in a case (3). The case (3) is supported in the vehicle via a rubber mount (36). The case (3) permits expansion and contraction of the fuel cell stack (2) in the fixed direction so that the expansion and contraction of the fuel cell stack (2) does not exert a force on the rubber mount (36).

Abstract: In a transfer mold body, a display portion is formed from a crystalline resin and a main body portion is formed from an amorphous resin. Accordingly, a transfer layer is only transferred to the amorphous resin formed main body portion that has good transfer properties for the transfer layer, and the transfer layer is not transferred to the crystalline resin formed display portion that has poor transfer properties for the transfer layer. Accordingly, only the main body portion is decorated by the transfer layer, with the display portion to which the transfer layer is not transferred visibly displayed as the letter. Accordingly, since printing process is not necessary, suppressing an increase in cost of the transfer mold body. Moreover, the position of the letter is determined by two-color molding of the main body portion and the display portion, enabling positional displacement of the letter to be suppressed.

Abstract: A transfer layer is transferred well to a step portion. In a transfer mold body, a projection and indentation portion is formed to a front face of a bottom wall of a step portion. When covering a transfer film over a base member, air between the transfer film and the step portion is accordingly expelled from between indented portions of the projection and indentation portion and the transfer film at an edge portion of the bottom wall. The transfer film can accordingly be covered over the step portion whilst suppressing air from remaining between the transfer film and the step portion. A transfer layer of the transfer film can accordingly is transferred well to the front face of the step portion.

Abstract: In a transfer mold body, a display portion is formed from a crystalline resin and a main body portion is formed from an amorphous resin. Accordingly, a transfer layer is only transferred to the amorphous resin formed main body portion that has good transfer properties for the transfer layer, and the transfer layer is not transferred to the crystalline resin formed display portion that has poor transfer properties for the transfer layer. Accordingly, only the main body portion is decorated by the transfer layer, with the display portion to which the transfer layer is not transferred visibly displayed as the letter. Accordingly, since printing process is not necessary, suppressing an increase in cost of the transfer mold body. Moreover, the position of the letter is determined by two-color molding of the main body portion and the display portion, enabling positional displacement of the letter to be suppressed.

Abstract: A system has two modes which protect it from freezing of water while a fuel cell stack has stopped. An effective protection mode from the viewpoint of energy consumption is selected based on the estimated restart time and outside air temperature shift, and used to protect the system. The protection modes are: a first protection mode which prevents freezing by heating the water supplied to the fuel cell, and a second protection mode which avoids freezing of water in the fuel cell by discharging the water in the fuel cell to outside the fuel cell, and freezing the water outside the fuel cell.

Abstract: A system has two modes which protect it from freezing of water while a fuel cell stack has stopped. An effective protection mode from the viewpoint of energy consumption is selected based on the estimated restart time and outside air temperature shift, and used to protect the system. The protection modes are: a first protection mode which prevents freezing by heating the water supplied to the fuel cell, and a second protection mode which avoids freezing of water in the fuel cell by discharging the water in the fuel cell to outside the fuel cell, and freezing the water outside the fuel cell.

Abstract: A fluorescent lamp having a stem provided with first and second lead wires for energization of an electrode and an electrically-insulating member provided therein with a first hole and a second hole larger in cross-sectional area than said second lead wire. The first and second lead wires are inserted in the first and second holes of the electrically-insulating member, respectively, and an outer diameter of a glass envelope of the fluorescent lamp is not smaller than 13 mm and not larger than 29 mm.

Abstract: A fuel cell assembly (1) for mounting in a vehicle comprises a fuel cell stack (2) comprising two stack units (2a, 2b) arranged in parallel. Each of the stack units (2a, 2b) comprises a number of fuel cells stacked in a fixed direction. The fuel cell stack (2) is housed in a case (3). The case (3) is supported in the vehicle via a rubber mount (36). The case (3) permits expansion and contraction of the fuel cell stack (2) in the fixed direction so that the expansion and contraction of the fuel cell stack (2) does not exert a force on the rubber mount (36).

Abstract: A control unit is provided for controlling a twin clutch mechanism which includes first and second automatic clutches respectively incorporated with first and second groups of gears. The control unit is configured to carry out establishing a condition wherein both the first and second automatic clutches are in their engaged conditions and wherein one of the first and second groups of gears is operated to select a certain speed gearing with the aid of a corresponding selection mechanism while leaving the other of the first and second groups of gears in a neutral condition with the aid of the other corresponding selection mechanism; and releasing the engaged condition of the automatic clutch incorporated with the other of the first and second groups of gears when the other of the first and second groups of gears is in a critical condition to induce a gear hit noise.

Abstract: A control unit is provided for controlling a twin clutch mechanism which includes first and second automatic clutches respectively incorporated with first and second groups of gears. The control unit is configured to carry out establishing a condition wherein both the first and second automatic clutches are in their engaged conditions and wherein one of the first and second groups of gears is operated to select a certain speed gearing with the aid of a corresponding selection mechanism while leaving the other of the first and second groups of gears in a neutral condition with the aid of the other corresponding selection mechanism; and releasing the engaged condition of the automatic clutch incorporated with the other of the first and second groups of gears when the other of the first and second groups of gears is in a critical condition to induce a gear hit noise.

Abstract: A fluorescent lamp having a stem provided with first and second lead wires for energization of an electrode and an electrically-insulating member provided therein with a first hole and a second hole larger in cross-sectional area than said second lead wire. The first and second lead wires are inserted in the first and second holes of the electrically-insulating member, respectively, and an outer diameter of a glass envelope of the fluorescent lamp is not smaller than 13 mm and not larger than 29 mm.

Abstract: A high frequency operation fluorescent lamp which can reduce a possibility of over-heat damage of a flare stem at the end of its life. In the lamp, a pair of intermediate lead wires are passed through the flare stem at each end of a light emitting envelope, and an insulator is provided to cover a top of the flare stem.