32results about How to "Ensure the flow path" patented technology

Provided is heat transfer tubes and a heat exchanger using the same. In the compact heat exchanger, outer tubes and inner tubes can be assembled in an accurate manner without causing reduction in heat transfer efficiency. The heat transfer tubes comprise: a plurality of parallel outer tubes (13); inner tubes (15) inserted into the outer tubes (13) and disposed so that both ends of the inner tubes (15) extend beyond the outer tubes (13); a gap support member (17) disposed in the gap between the inner circumferential surface of the outer tube (13) and the outer circumferential surface of the inner tube (15), the gap support member (17) being made of a wire material arranged so as to be in contact with the inner circumferential surface and the outer circumferential surface in a spiral shape along substantially the entire length of the outer tube (13); and a support member (19) made of a wire material arranged so as to be in contact with the inner circumferential surface of the inner tube (15) in a spiral shape along the entire length of the inner tube (15). The area ratio of a primary flow path in the inner tubes (15) and a secondary flow path in the outer tubes (13) is 1:1-1:1.6.

Disclosed is a lower die for receiving molten glass drops which were dripped. A coating layer is formed on a base material through an intermediate layer, and surface roughening is performed on the surface of the coating layer in order to increase arithmetic average roughness (Ra). The surface of the coating layer subjected to the surface roughening has an arithmetic average roughness (Ra) of 0.01 [mu]m or more, and an average length (RSm) of a roughness curve element of 0.5[mu]m or less.

A master cylinder that can sufficiently supply brake fluid through the gap between the piston oil seal and the bottom of the peripheral groove and the communication groove when the air is extracted, and as a result, the air can be exhausted with the least number of times. The piston oil seal (35) is installed in the peripheral groove (30) formed on the cylinder main body (15), and can seal between the supply passage (38) communicating with the container and the pressure chamber (68) supplying hydraulic pressure to the discharge passage, It has: an annular base portion (90); an inner peripheral flange portion 91 protruding from the inner peripheral side of the base portion (90) and slidingly contacting the outer peripheral surface of the piston (19); an outer peripheral flange portion (92) extending from the The outer peripheral side of the base (90) protrudes and contacts with the peripheral groove (30) of the cylinder main body (15); the middle protrusion (93) protrudes from the inner peripheral flange portion (91) and the outer peripheral flange portion (92) of the base (90) ) protrudes to the front of the outer peripheral flange portion (92), and a notch groove (95) is formed on the front end side of the intermediate protrusion (93).

When a hub (40) is in an initial position at which it is located on the front end side of an inner cavity of a shield (20), an inner needle (50) penetrates an outer needle (30) and protrudes from a leading end of the outer needle to the outside, and when the hub is in a retracted position at which it is located on the rear end side of the inner cavity of the shield, the inner needle is housed within the inner cavity of the shield. A first side hole (31) is formed in an outer circumferential face of the outer needle, and a second side hole (51) is formed in an outer circumferential face of the inner needle. When the hub is in the initial position, an inner circumferential face of a region (33) of the outer needle that contains the first side hole is in close contact with the outer circumferential face of the inner needle, and the second side hole is located closer to the hub than the region where the inner circumferential face of the outer needle is in close contact with the outer circumferential face of the inner needle. Thus, a priming operation for filling a gap between the inner needle and the outer needle with blood can be easily performed, and leakage of blood through the side hole of the outer needle during puncture does not occur.

The present invention provides an applicator capable of fixing an applicator easily and securing a flow path of a coating liquid. An applicator provided with an applicator having an applicator, the applicator having a core base on which the applicator is mounted and a fixing member protruding from a main body with a plurality of protrusions, when the protrusions of the fixing member are pierced into In the state of the applied body, the fixing member is fixed to the core base to fix the applied body to the core base, and in the fixed state of the applied body, the applied part is attached to the guide shaft .

A hydraulic unit is provided with: a manifold which forms a hydraulic circuit; a tank which is joined to the manifold; and a hydraulic pump which suctions hydraulic fluid in the tank and supplies the hydraulic fluid to the manifold, wherein the base end portion of a suction strainer is fitted into the hydraulic pump, and the suction strainer has such a shape that the base end portion of the suction strainer is not separated from the hydraulic pump in a state where the leading end portion of the suction strainer is in contact with the tank and an opening through which the hydraulic fluid is introduced from the tank is provided at the leading end portion.

The present invention provides a hollow fiber membrane module capable of effectively removing the accumulation of suspended matter in the membrane module, realizing reduction in operating cost, and capable of stable operation, and an operation method thereof. The hollow fiber membrane module of the present invention is characterized in that it has a cylindrical casing, a plurality of hollow fiber membranes, and a first sealing part, the cylindrical casing has a first end and a second end in the height direction, and a plurality of hollow fiber membranes. The membrane is housed in the cylindrical case, the first sealing part is housed in the cylindrical case, and the ends of a plurality of hollow fiber membranes located on the first end side of the cylindrical case are combined in an open state, and the hollow fiber The membrane is a porous hollow fiber membrane with a breaking strength of 23MPa or more, and the membrane area per unit volume of the hollow fiber membrane module is 800m 2 / m 3 Above 3700m 2 / m 3 Hereinafter, in a section perpendicular to the height direction of the cylindrical case, the filling rate of the hollow fiber membrane is 25% or more and 38% or less.

Provided is a heat exchanger capable of improving the flowability of a heat exchange medium in an inlet / outlet forming part. The present invention relates to a heat exchanger provided with: a heat transfer unit (2) configured as a heat exchange flow path (20) through which a heat exchange medium (L) flows in a hollow section; and inlet / outlet forming parts (1a, 1b), the interior of which is connected to the heat exchange flow path (20) in a communicating manner and in which an inlet / outlet (15) through which the heat exchange medium (L) flows in and out is formed. At least a portion of the outer surface portion of the heat transfer portion (2) is configured from a cover sheet (6) which is a laminated material obtained by providing a resin cover layer on at least one surface side of a metal heat transfer layer, and the outer dimension thickness (T1) of the inlet / outlet forming portions (1a, 1b) is formed to be thicker than the outer dimension thickness (T2) of the heat transfer portion (2).