摘要:
This refrigerating compressor comprises a sealed chamber delimiting a suction volume and a compression volume arranged respectively either side of a body contained in the chamber, and an oil injection circuit arranged to inject oil into the compression volume. The oil injection circuit comprises a moving blocking piece, operated by a centrifugal force, between a first position enabling oil injection into the compression volume and a second position preventing or limiting oil injection into the compression volume, the blocking piece being arranged to be displaced into its second position when the speed of the compressor exceeds a predetermined value.
摘要:
This refrigerating compressor comprises a sealed chamber delimiting a suction volume and a compression volume arranged respectively either side of a body contained in the chamber, and an oil injection circuit arranged to inject oil into the compression volume. The oil injection circuit comprises a moving blocking piece, operated by a centrifugal force, between a first position enabling oil injection into the compression volume and a second position preventing or limiting oil injection into the compression volume, the blocking piece being arranged to be displaced into its second position when the speed of the compressor exceeds a predetermined value.
摘要:
The compressor includes a sealed housing defining a suction volume and a compression volume respectively provided on either side of a body contained in the housing, an oil injection circuit supplied with oil from an oil contained in a casing and adapted for injecting oil into the compression volume, the oil injection circuit comprising an electrovalve including a body attached to the wall of the sealed housing and a core movable under the action of a magnetic fluid between a closing position for injecting oil into the compression volume and an opening position preventing or limiting the injection of oil into the compression volume. The compressor includes a control means for moving the core of the electrovalve between the opening and closing positions based on the compressor speed and/or on the cooling gas discharge temperature.
摘要:
The compressor includes a sealed housing defining a suction volume and a compression volume respectively provided on either side of a body contained in the housing, an oil injection circuit supplied with oil from an oil contained in a casing and adapted for injecting oil into the compression volume, the oil injection circuit comprising an electrovalve including a body attached to the wall of the sealed housing and a core movable under the action of a magnetic fluid between a closing position for injecting oil into the compression volume and an opening position preventing or limiting the injection of oil into the compression volume. The compressor includes a control system for moving the core of the electrovalve between the opening and closing positions based on the compressor speed and/or on the cooling gas discharge temperature.
摘要:
Cabinet for a refrigeration compressor delimiting an inner space designed to receive electrical and electronic components, characterized by having at least one support for the electrical and electronic components and a protective cap having an open side face delimited by an edge whose shape at least partially matches the shape of the side wall of compressor, cap being intended to be applied by its open side face against the side wall of the compressor, thus forming one of the walls of the cabinet. The cabinet accommodates the electrical and electronic command, control, and protection components on refrigeration compressors ensuring that the electrical and electronic components are held at their operating temperature and that tightness and vibrations are at an acceptable level.
摘要:
In a compressor at least one bypass valve is arranged in a low-pressure zone inside a casing of the compressor. The bypass valve defines a chamber connected by a first duct to at least one compression pocket situated in the peripheral zone of the compression stage and by a second duct to the low-pressure zone, the two ducts opening near one another so that they can be shut off by a shutter which can move in the chamber, being guided by the walls that delimit this chamber, a third duct intended for conveying a shutter-control fluid opening into the lower wall of the chamber of the valve. The shutter is opened by gravity when no control fluid is applied.
摘要:
A depilatory device having a manually grippable casing and enclosing a motor for driving a rotary roller (1) around a central shaft (10) disposed behind a window provided in the casing. The roller has one or several rows of tweezers, each row being formed by a first series of side-by-side, parallel movable blades (20) interposed with a second series of fixed disks or equally movable blades (40), as well as control elements (56-85) for moving the movable blades in translation in the longitudinal direction of the shaft so as to press them against the others in order to grasp the hairs to be extracted, then separate them. The blades (20, 40) of at least one series are cross-shaped, one pair of opposite arms (23) being at least partly curved in one longitudinal direction, the other orthogonal pair of opposite arms (23') being at least partly curved in the other direction, these blades being held by their respective support (10, 30) in their base (21, 41) at the junction point of the arms.
摘要:
A mechanical epilator (1) for pulling hairs from the skin (P), the epilator (1) including an epilator member (6), e.g., constituted by a roller (60) made up of disks and of blades, that is rotatable about an axis (61) and that is driven by an electric motor (3), in association with a mechanical coupling member (7). The epilator further includes, or is associated with, a moistening member for moistening the skin (P). Finally, it includes a fan system (4), likewise driven by the motor (3) and serving to lower the surface temperature of the skin by the effect of forced evaporation, thereby numbing the skin. Moistening may also be achieved by spraying water onto the skin.
摘要:
A compressor intended to compress coolant fluid for a refrigeration or air conditioning installation, comprising a substantially vertical body consisting of a casing intended to receive in particular a lubricating liquid in its bottom portion forming a reservoir, and means of heating the lubricating liquid. The means of heating the lubricating liquid and means of acoustic insulation and thermal insulation situated below the heating means are placed close to the bottom wall of the casing.
摘要:
Cabinet for a refrigeration compressor delimiting an inner space designed to receive electrical and electronic components, characterized by having at least one support for the electrical and electronic components and a protective cap having an open side face delimited by an edge whose shape at least partially matches the shape of the side wall of compressor, cap being intended to be applied by its open side face against the side wall of the compressor, thus forming one of the walls of the cabinet. The cabinet accommodates the electrical and electronic command, control, and protection components on refrigeration compressors ensuring that the electrical and electronic components are held at their operating temperature and that tightness and vibrations are at an acceptable level.