Sasakura Engineering Co., Ltd.

Taiyo Corporation

Asahi Kogyosha Co., Ltd.

Iwao Sawada

Masahiro Adachi

Kunihiko Minami

Masaaki Imai

Makoto Koganei

Hirofumi Masuki

Kinya Yamashita

Tomohiro Motomura

Akihiko Sakai

Tyuichi Itashiki

Hayato Fujii

A rotary cooling roller includes outer and inner cylinders, two end plates fixed to both ends of the outer cylinder, and a supporting shaft protruding from the end plates. A cylindrical space, provided between the outer and the inner cylinders, communicates with the inner space of the inner cylinder via through-holes formed in the inner cylinder. A coolant contained is allowed to flow back and forth between the cylindrical space and the inner space of the inner cylinder. Ring-shaped spacers are provided in the cylindrical space for passing an external force exerted on the outer cylinder to the inner cylinder.

Rotary cooling roller

A heat pipe unit comprising a relatively thin box-shaped panel body in which coolant is charged, a heat-transfer pipe provided in an upper area in the panel body in which cooling fluid is fed and a device for guiding to an inner wall of the panel body the coolant liquified by the heat-transfer pipe.

Heat pipe unit and partition panel

This disclosure relates to apparatus comprising a reverse osmosis membrane module, a reciprocating pump and a double-acting hydraulic cylinder. The pump includes a piston defining on its opposite sides a first cylinder chamber and a second cylinder chamber which has a smaller cross-sectional area than the first chamber. The first chamber connects with a feed fluid supply conduit provided with a feed valve which opens when the first chamber expands. The membrane module includes an inlet and an outlet. The inlet connects with the first cylinder chamber when the first cylinder chamber contracts in volume, and the outlet connects with the second cylinder chamber through a selector connecting with a concentrate fluid drain conduit. The selector has a first position where the second chamber and the outlet are interconnected and the drain conduit is disconnected from the second chamber and the outlet, and a second position where the second chamber and the drain conduit are interconnected and the outlet is disconnected from the second chamber and the drain conduit. The hydraulic cylinder includes a piston coupled by a rod to the pump piston and defining two chambers on its opposite sides, which are supplied alternately with hydraulic pressure to reciprocate the pistons. The selector is coupled to an actuator connecting with the hydraulic cylinder. The actuator is responsive to the pressure in one of the hydraulic cylinder chambers to shift the selector to the first position immediately before the first cylinder chamber starts to contract, and to the pressure in the other hydraulic cylinder chamber to shift the selector to the second position immediately before the first chamber starts to expand.

Concentrating apparatus with reverse osmosis membrane

Growing community of inventors

Osaka, Japan

Iwao Sawada