A screw compressor includes: a screw compressor main body; a motor for driving the screw compressor main body; a gearbox interposed between the screw compressor main body and the motor to transmit a driving force of the motor to the screw compressor main body; and a gas cooler positioned below either the screw compressor main body or the motor and attached as a separate body to a side surface of the gearbox.

A heat exchanger includes: a heat exchange section through which a compressed gas flows; an upstream header section that is provided on an upstream side of the heat exchange section and communicates with the heat exchange section; a downstream header section that is provided on an downstream side of the heat exchange section and communicates with the heat exchange section; a gas inlet pipe that is connected to a wall surface of the upstream header section; and a gas outlet pipe that is connected to a wall surface of the downstream header section. A filter-cum-sound absorbing material of a porous material is mounted on an inner wall surface of at least one of the upstream header section and the downstream header section. The inner wall surface faces the heat exchange section.

A package-type air-cooled screw compressor has a compressor body relating to an air-cooled screw compressor, a drive motor, a package that houses the compressor body and the drive motor, an intake opening that takes in an air that cools the compressor body and the drive motor, an exhaust opening that exhausts the air, a duct extended downward from the exhaust opening, to transport the air to the exhaust opening, and an exhaust fan that exhausts the air. A lower end of a wall face constituting the duct is extended downward so that a lower-end inlet of the duct is placed at a position not viewable from a center position of the compressor body.

Disclosed is a muffler for a water-cooled chiller or air-cooled of a vapor-compression or absorption refrigeration system, the muffler having: an upstream case (110) having a fluid inlet (120); a downstream case (115) connected to the upstream case at a downstream end of the upstream case, the downstream case having a fluid outlet (125); the upstream case having a plurality of axially adjacent outer muffler rings (145) and a plurality of axially adjacent inner muffler rings (155), the outer muffler rings being axially coextensive and a radially exterior to the inner muffler rings and defining a fluid inlet passage (140) therebetween, wherein the outer muffler rings and inner muffler rings are a metal mesh material.

A robot suction hand mountable on an industrial robot and configured to hold a workpiece by suction using a suction unit. The robot suction hand includes: a vacuum pump incorporated in the robot suction hand. The vacuum pump has a housing in which an intake port and an exhaust port are formed, and configured to intermittently take in air from the intake port and intermittently discharge air from the exhaust port. The robot suction hand includes a suction path that communicates with the suction unit and the intake port and a first member made of a porous material. The first member covers the exhaust port.

The packaged compressor includes: an exhaust duct having an exhaust port; a gas cooler arranged to be inclined with respect to the exhaust port in the exhaust duct; and at least one sound insulating plate arranged in a direction perpendicular to the exhaust port in the exhaust duct, the sound insulating plate configured to partition the exhaust port. In the packaged compressor, the exhaust port is partitioned into divided openings by the sound insulating plate. Of the divided openings, an area of a first divided opening provided on a side where a distance between the gas cooler and the exhaust port is shortest is larger than an area of a second divided opening.

A scroll compressor is disclosed. The compressor includes an enclosure including a compression mechanism that compresses a working fluid. A discharge port discharges a compressed working fluid. A discharge plenum receives the compressed working fluid from the discharge port. A pulsation absorber is disposed within the discharge plenum, the pulsation absorber dividing the discharge plenum into a plurality of volumes.

A supercharger assembly comprises a housing, a rotor bore with an outer wall, an outlet in an outlet plane, an inlet in an inlet plane perpendicular to the outlet plane, and an outlet divider wall. The supercharger assembly comprises a first recess, a first perforated material covering the first recess, and an outlet resonator. The first recess is separated from the outlet by the outlet divider wall. The first recess is located between the outer wall and the first perforated material.

A compressor system (01) with a system housing (02), in which are arranged heat generating system components (06) comprising at least one compressor stage (201) for compressing a gaseous medium, an air water cooler (12), a blower (15) which generates a cooling air flow (16), and air conducting elements. A cooling air channel (07) is configured which has an inlet opening (08) in the upper section of the system housing (02) and an outlet opening (09) in the lower section of the system housing (02), wherein upper air conducting elements (13) are positioned in order to conduct the cooling air flow (16) after flowing through the air water cooler (12) to the inlet opening (08), and lower air conducting elements (17) are positioned in order to conduct the cooling air flow (16) from the outlet opening (09) to the system components (06).

An outdoor unit of an air-conditioning apparatus includes: a terminal unit that is provided on an outer peripheral surface of a compressor, and electrically connects components provided in the compressor and outside the compressor; a side soundproof cover that covers the outer peripheral surface of the compressor except for the terminal unit; and a terminal cover that covers the terminal unit exposed from the side soundproof cover to the outside of the side soundproof cover, and soundproofs the terminal unit. The terminal cover is attached to the side soundproof cover such that the state of the terminal cover can be changed between a state in which the terminal cover covers the terminal unit and a state in which the terminal cover does not cover the terminal unit.