摘要:
A inject gas control device that performs, for example, control reflecting variation in vessel velocity over time without adversely affecting the main engine is realized. That is, it is prevented that gas is drawn too much and thereby a gas supply or charged air rate becomes insufficient, efficiency of the main engine is decreased and exhaust gas is deteriorated, and analogous events occur because the gas supply or charged air rate is too much instead.There are provided a main engine 4010 acquiring propelling power for a vessel 1, and a turbocharger 4011 that is driven by exhaust gas from the main engine 4010 and blows pressurized gas to the main engine 4010. A part of the pressurized gas and/or exhaust gas is drawn from between the turbocharger 4011 and the main engine 4010 (5023, 5024 and 5025). The drawn pressurized gas and/or exhaust gas are injected in the proximity 9 of the hull on or below the waterline (5040), and the drawing rate of the pressurized gas and/or the exhaust gas is controlled on the basis of a physical quantity related to a heat load on the main engine 10 and characteristics of the turbocharger (4200).
摘要:
A lead wire of a motor is prevented from being damaged, and the reliability of an electric compressor is enhanced. The electric compressor 1 is provided with a division wall 80b which divides a discharge chamber 62 and a connection space 65 which connects a sealed terminal 90 and a lead wire 5c of a motor 5. With this configuration, it is possible to prevent discharge gas from directly flowing into the connection space 65, and to prevent the discharge gas from flowing into a wire passage 64 through which the lead wire 5c is passed. Therefore, vibration of lead wire 5c caused by gas pulse can be suppressed, the lead wire can be prevented from being damaged, and the reliability of the electric compressor can be enhanced.
摘要:
It is an object of the present invention to make an oil-reservoir chamber independent from a motor chamber into which a refrigerant compressed by a compressor mechanism is introduced, thereby reducing a compressor in size. In a compressor 1, a partition member 7 is provided in a housing 3 on the opposite side from a compressor mechanism 4 with respect to a motor 5. The partition member 7 is pushed by a stator 5a of the motor 5, thereby liquid-tightly fixing the partition member 7 to the housing 3. The oil-reservoir chamber 6 is formed independently from a motor chamber 2 in which the motor 5 is accommodated, and lubricant oil is efficiently separated from a refrigerant with a simple structure.
摘要:
A compressor and an electric motor in which their weights are successfully reduced by employing a light-metal conductor wire for a winding, by reducing constituent components of a stator and a rotor of the electric motor, by providing a notch or a hole, and by eliminating the need for components necessary to mount the stator in a housing or a casing.
摘要:
The present invention relates to a method and an apparatus, in which the quality of a large amount of water and/or the quantity of dissolved oxygen in said water is improved and which are characterized in that water, in which slaked lime is dissolved in advance, and/or water of high oxygen content, which is generated in advance, is supplied into water pumped by an intermittent pneumatic water pumping unit so that the water having the slaked lime dissolved therein and/or the water of high oxygen content is diffused in the large amount of water. The present invention also relates to a method and an apparatus, in which the quality of large amount of water and/or quantity of dissolved oxygen in a large amount of water is improved and which are characterized in that water with slaked lime dissolved therein and/or water of high oxygen content is conducted to the bottom of a lake or the like; and an intermittent pneumatic water pumping unit is operated in the lake or the like so that the large amount of water is caused to flow up and down and be agitated.
摘要:
A water aeration apparatus is used for aeration purposes in the water-filled areas such as dams, impounded water or reservoirs, and lakes and marshes, and includes a tubular casing and supply chamber that causes large quantities of water to be exposed to the flotation action of air supplied under pressure, thus raising the water up to the surface. The apparatus may be used for water purification, or for anti-freezing purposes particularly in cold climate regions. The apparatus includes a collective tubular casing and a multiple-partitioned or common air supply chamber below the casing, the tubular casing including a plurality of tubular air and water passages formed by dividing the interior of the casing into several longitudinal passages or by combining individual tubes together.
摘要:
A lead wire of a motor is prevented from being damaged, and the reliability of an electric compressor is enhanced. The electric compressor 1 is provided with a division wall 80b which divides a discharge chamber 62 and a connection space 65 which connects a sealed terminal 90 and a lead wire 5c of a motor 5. With this configuration, it is possible to prevent discharge gas from directly flowing into the connection space 65, and to prevent the discharge gas from flowing into a wire passage 64 through which the lead wire 5c is passed. Therefore, vibration of lead wire 5c caused by gas pulse can be suppressed, the lead wire can be prevented from being damaged, and the reliability of the electric compressor can be enhanced.
摘要:
A cooling space in an inverter case is disposed at a position opposed to a stationary scroll of a scroll compressor. A refrigerant having low temperature is allowed to flow in and out between the cooling space and the stationary scroll through a seal, thereby cooling an inverter.
摘要:
A compressor in which an electric motor and a compressing mechanism are accommodated in a case, a main shaft and an auxiliary shaft of a rotating shaft of the motor are supported by a radial plain bearing and a rolling bearing with a predetermined clearance given to the rotating shaft in an axial direction, a flange portion that contacts with a main-shaft receiving member of the radial plain bearing to align the rotating shaft with the compressing mechanism is provided on the main shaft, and preload toward the side of the rolling bearing is given to the rotating shaft. In this constitution, a prevention member for preventing contact and/or collision of the rotating shaft with the main-shaft receiving member is provided between opposing faces of the flange portion and the main-shaft receiving member.
摘要:
A compressor with a built-in electric motor has a compression mechanism and the built-in electric motor which are housed in a container. A suction port, a discharge port, inner and outer electric connection parts, and mounting legs of the container are provided on the same side of a body of the container. A bearing part for supporting an end of a driving shaft for driving the compression mechanism is formed on an end wall integral to -the body of the container, where the end of the driving shaft to be supported by the bearing part is located in the direction opposite to the compression mechanism and the driving shaft is connected to the built-in electric motor. In addition, a pumping mechanism is provided in a pumping chamber opened to an external surface of the end wall and is connected to the end of the driving shaft in the direction opposite to the compression mechanism. The opening of the pumping chamber is closed by a closing member. Thereby, the reduction in size and weight of the compressor with the built-in electric motor is achieved.