Abstract: 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.

Abstract: A gas-filling apparatus includes a gas flow passage including an inflow end to which a gas supply source is connectable and an outflow end to which a pressure accumulator is connectable, a compressor, a storage portion, and an operation control portion conducting a first compression filling operation in which a gas supplied from the gas supply source connected to the inflow end is compressed by the compressor to be discharged from the outflow end and a second compression filling operation in which the gas stored in the storage portion is compressed by the compressor to be discharged from the outflow end, the operation control portion conducting the first compression filling operation until a pressure of the gas at the outflow end reaches a predetermined pressure and executing a control for shifting the first compression filling operation to the second compression filling operation when the pressure has reached the predetermined pressure.

Abstract: A gas filling apparatus in the present invention includes an accumulator, a compressor, a pressure sensor for detecting the pressure of gas delivered from a dispenser to be delivered to a gas tank, a regulating valve for regulating the gas flow rate, and a controller. To prevent a rapid rise in pressure of gas supplied to the gas tank, the controller includes an opening control unit for controlling the opening of the regulating valve when a detected value of the pressure sensor is lower than a pressure corresponding to the gas pressure in the accumulator by a predetermined value or more, and a compression control unit for controlling drive of the compressor so that the compressor compresses sucked gas when a pressure difference of a pressure detected by the pressure sensor from a pressure corresponding to the gas pressure in the accumulator becomes a value smaller than the predetermined value.

Abstract: A compression apparatus in the present invention includes a compressor including a cylinder for compressing a gas, a gas cooler for cooling the gas compressed in the cylinder, and a circulation passage for guiding the gas compressed in the cylinder into the gas cooler. The gas cooler is diffusion bonded to the cylinder. In order to reduce the size of the compression apparatus, the circulation passage extends through an area in which the gas cooler and the cylinder face each other. At least areas surrounding the area are diffusion bonded.

Abstract: A gas-filling device (1) in which the design pressure of a pressure accumulator can be reduced while downsizing a compressor includes a compressor (4) and a pressure accumulator (5). In advance, a relationship between a filling pressure and a target flow rate is determined in accordance with the volume of a tank (3), the filling pressure is detected, and the target flow rate is determined. A flow rate of a gas to be supplied into the tank (3) is controlled according to the target flow rate. In a case where the target flow rate is equal to or less than a maximum discharge flow rate of the compressor (4), the gas is supplied to the tank (3) only from the compressor (4). In a case where the target flow rate is greater than the maximum discharge flow rate, the gas is supplied to the tank (3) from the compressor (4) and the pressure accumulator (5).

Abstract: 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.

Abstract: 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.

Abstract: A gas compressor of the present invention includes a reciprocating member, an accommodation portion, and a sealing portion, and the accommodation portion includes a compression chamber that compresses a gas and a non-compression chamber that is separated from the compression chamber by the reciprocating member and the sealing portion. Further, since the compression chamber includes a suction line that suctions a hydrogen gas, a discharge line that discharges a compressed gas, a connection line that is connected to the accommodation portion and is used so that at least a part of a gas flows therethrough when a gas passing through the sealing portion from the compression chamber exists, a flowmeter that is provided in the connection line, and a determination unit that determines whether a flow amount measured by the flowmeter is equal to or larger than a predetermined threshold value, it is possible to easily determine the abrasion state of the sealing portion.

Abstract: 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

Abstract: A compressor of the present invention includes a crank shaft, a bearing, a casing, an outer-race gear that is disposed so as to surround the crank shaft, a planetary gear that has a radius of a pitch circle set to a half of a radius of a pitch circle of the outer-race gear and causes the crank shaft to be inserted therethrough so that the planetary gear rotates relative to the crank shaft, a piston that is connected to the planetary gear so as to rotate relative to the planetary gear and moves in a reciprocating manner in the direction parallel to the radial direction of the outer-race gear inside the casing in a manner such that the planetary gear rotates inside the outer-race gear while engaging with the outer-race gear, and a pump that supplies lubricant to the bearing. Here, the pump is accommodated inside the casing.

Abstract: Provided is a hydrogen station that supplies hydrogen to an external hydrogen tank, the hydrogen station including: a reciprocating compressor that is driven by a driver of which revolution is controllable; a cooling device that is capable of cooling hydrogen supplied from the reciprocating compressor to the hydrogen tank; a temperature sensor that detects an internal temperature of the hydrogen tank or a temperature of the hydrogen supplied to the hydrogen tank; and a control unit that controls the revolution of the driver based on the temperature detected by the temperature sensor.

Abstract: Provided is a hydrogen station that is used to charge hydrogen to a hydrogen tank mounted on a vehicle, the hydrogen station including: a compressor that compresses hydrogen; a lubricant cooling unit that cools the lubricant of the compressor while circulating the lubricant; a hydrogen cooling unit that is capable of cooling hydrogen which is not charged to the hydrogen tank mounted on the vehicle yet and is compressed by the compressor; a sensor that detects whether the vehicle approaches or reaches the hydrogen station; and a startup unit that starts up at least one of the lubricant cooling unit and the hydrogen cooling unit by a signal from the sensor.

Abstract: A process for producing an embedded protein antigen, comprising embedding a protein antigen having two or more cysteine residues in a molecule thereof, into a hydrophobized polysaccharid. Prior to or after the embedding of the protein antigen, the protein antigen is purified. There are provided an embedded protein antigen and a process for producing the same, which can advantageously purify the protein antigen, while suppressing the denaturation of the protein antigen as completely as possible.

Abstract: A method is disclosed for culturing animal cells in a medium characterized n that said medium contains a compound represented by the general formula ##STR1## wherein, R denotes COOM or CHO, herein M denotes hydrogen, an alkali metal or a C.sub.1 to C.sub.3 alkyl group, and n is an integer of 1 to 3.According to the present method, proliferation of animal cells can be enhanced with good reproducibility.

Abstract: Disclosed is a process for the recovery of aromatic carboxylic acid or ester thereof from the residue fraction of the oxidation or esterification reaction mixture resulting from the oxidation or oxidation and esterification of an aromatic compound having at least one methyl or formyl group directly bonded to a ring carbon atom. The process comprises treating the residue fraction with hydrogen and a hydrogenation catalyst.