Abstract: In one embodiment, a compression mechanism unit of a rotary compressor includes a cylinder includes a cylinder chamber, a roller in the chamber, first and second vanes which come into contact with the roller and partition the chamber into a compression side and an absorption side, and a bias member which biases the vanes. On both end sides of a posterior end portion of the first vane, first vane side attachment portions having an equal dimension in the axial direction are provided. On both end sides of the second vane along the axial direction of the axis, second vane side attachment portions having an equal dimension in the axial direction are provided. The vanes are attached to the bias member via the attachment portions.

Abstract: In one embodiment, a compression mechanism unit of a rotary compressor includes a cylinder includes a cylinder chamber, a roller in the chamber, first and second vanes which come into contact with the roller and partition the chamber into a compression side and an absorption side, and a bias member which biases the vanes. On both end sides of a posterior end portion of the first vane, first vane side attachment portions having an equal dimension in the axial direction are provided. On both end sides of the second vane along the axial direction of the axis, second vane side attachment portions having an equal dimension in the axial direction are provided. The vanes are attached to the bias member via the attachment portions.

Abstract: According to one embodiment, a rotary compressor accommodating an electric motor portion and a compression mechanism portion in a sealed case, wherein the compression mechanism portion comprises a cylinder, a roller, and a vane. The vane is disposed by stacking two divided vanes in a height direction of the cylinder, which is an axis direction of the rotation axis, and where a height dimension of one divided vane is H, and a minute gap between a height dimension of the cylinder and a height dimension of the two stacked divided vanes is L, a proportion of the minute gap L to the vane height dimension H per one divided vane is 0.001<L/number of divided vanes/H<0.0015.

Abstract: A multiple electromagnetic valve includes a main valve portion in which four or more valve holes are formed parallel to each other inside a valve body, and a spool for switching flow paths is placed in each valve hole, and a pilot operating portion having solenoid-operated pilot valves that drive the spools with pilot fluid. The valve holes are disposed inside the valve body in two upper and lower tiers. A plurality of valve holes belongs in each of the upper tier and lower tier. The valve holes in the upper tier and the valve holes in the lower tier occupy different positions in the width direction of the valve body. The valve holes in the upper tier and the valve holes in the lower tier partially overlap each other in the plan view of the valve body.

Abstract: According to one embodiment, a sealed compressor is configured to suction a working fluid to a rotary compression mechanism section through a suction pipe extending into an accumulator. The sealed compressor has a relation of Aac/Acy?4, Vac/Vcy?20, and As/Acy?0.12 when an inner diameter cross-sectional area of the accumulator is denoted by Aac (mm2), an inner diameter cross-sectional area of a cylinder chamber is denoted by Acy (mm2), an liquid retaining capacity to an upper end of the suction pipe inside the accumulator is denoted by Vac (cc), a total displacement volume of the rotary compression mechanism section is denoted by Vcy (cc), and a total inner diameter cross-sectional area of an extension portion inside the accumulator of the suction pipe is denoted by As (mm2).

Abstract: A solenoid valve assembly includes a three-port solenoid valve and a solenoid-valve holder having the solenoid valve mounted thereon, so that the solenoid valve can be attached on a pneumatic instrument via the solenoid-valve holder. When the solenoid valve is mounted on the solenoid-valve holder, this solenoid-valve holder is provided with a plurality of flow paths that communicate with each port of the solenoid valve, connection terminals electrically and respectively connected to electrification terminals conducting with an exciting coil of the solenoid valve, and receiving terminals for connecting the connection terminals to terminals of external power, respectively.

Abstract: A multiple electromagnetic valve includes a main valve portion in which four or more valve holes are formed parallel to each other inside a valve body, and a spool for switching flow paths is placed in each valve hole, and a pilot operating portion having solenoid-operated pilot valves that drive the spools with pilot fluid. The valve holes are disposed inside the valve body in two upper and lower tiers. A plurality of valve holes belongs in each of the upper tier and lower tier. The valve holes in the upper tier and the valve holes in the lower tier occupy different positions in the width direction of the valve body. The valve holes in the upper tier and the valve holes in the lower tier partially overlap each other in the plan view of the valve body.

Abstract: A motor 10 includes a cylindrical housing 2 having an inner circumferential surface 2a, and a stator core 13 accommodated in the housing 2. The stator core 13 includes a plurality of separate cores 30, which are annularly arranged along the inner circumferential surface 2a of the housing 2. Each separate core 30 includes a core back 31, which forms a part of the cylinder of the stator core 13, and a tooth 15, which project radially inward from the core back 31. The core back 31 is formed such that vertices A1, A2 of the corners of an arcuate portion 32 in the radially outer side are inside a range between rays L1, L2 that extend from a center point O of the stator core toward vertices B1, B2 of the corners of a straight portion 33 of the core back 31 in the radially inner side.

Abstract: A solenoid valve assembly includes a three-port solenoid valve and a solenoid-valve holder having the solenoid valve mounted thereon, so that the solenoid valve can be attached on a pneumatic instrument via the solenoid-valve holder. When the solenoid valve is mounted on the solenoid-valve holder, this solenoid-valve holder is provided with a plurality of flow paths that communicate with each port of the solenoid valve, connection terminals electrically and respectively connected to electrification terminals conducting with an exciting coil of the solenoid valve, and receiving terminals for connecting the connection terminals to terminals of external power, respectively.