Kobe Steel, Ltd.

Toshio Hirai

Kenji Nagura

Hitoshi Takagi

Takuro Uba

This compression device is provided with a reciprocating compressor which compresses a gas, and a heat exchanger which cools gas compressed by the compressor. The heat exchanger is provided with a cooling unit for cooling the gas and with a connection unit which abuts against the outside surface of the compressor and has a gas inlet passage to allow gas discharged from the compression chamber of the compressor to flow into the cooling unit.

Compression device having connection unit for cooling unit

In order to prevent the leakage of a gas from an internal space communicating with a compression chamber inside a cylinder in a cylinder head of a compressor, the compressor includes a suction valve pressing portion that presses a suction valve so that the suction valve provided in the internal space of the cylinder head does not slip off through a suction-side head opening, the suction valve pressing portion includes a suction valve pressing and inserting portion that is inserted into the cylinder head through the suction-side head opening, the outer peripheral surface of the suction valve pressing and inserting portion is provided with an annular suction valve pressing groove portion, a suction-side O-ring is attached into the suction valve pressing groove portion, and a suction-side backup ring that suppresses the movement of the suction-side O-ring toward the suction-side head opening is disposed at a position near the suction-side head opening of the suction-side O-ring inside the suction valve pressing groove portion.

Compressor with valve pressing portions for sealing

The present invention provides a reciprocating compressor that compresses a gas, including: a piston; a cylinder that includes a hole portion into which the piston is inserted so as to be movable in the axial direction in a reciprocating manner and includes a compression chamber which is formed in an area of the hole portion near a front end of the piston so that a gas is introduced into the compression chamber; a crank mechanism that drives the piston so that the gas introduced into the compression chamber is compressed by the piston; and a piston ring that is fitted to the outside of the piston and slides on an inner surface forming the hole portion of the cylinder, wherein a tapered portion is formed in an end, which is located near a base end of the piston, in the inner surface forming the hole portion of the cylinder.

Reciprocating compressor

Provided is a compressing device including a compressor with a compressing unit compressing a gas and a heat exchanger, the heat exchanger including: a cooling unit that cools a gas compressed by the compressing unit; a connection path that connects the compressing unit to the cooling unit; and a connection path branch portion that is branched from a part of the connection path. The connection path branch portion includes an attachment portion that is provided in a surface different from a surface facing the compressor in the heat exchanger. An instrumentation device is directly and strongly attached to the attachment portion.

Growing community of inventors

Takasago, Japan

Toshio Hirai