60results about How to "Very high cooling effect" patented technology

Described are oral sensory perception-affecting compositions containing dimethyl sulfoxide, complexes thereof and salts thereof, specifically:(i) dimethyl sulfoxide; and(ii) a second compound or group of compounds:(a) containing at least one menthyl moiety; and / or(b) containing at least one vanillyl moiety; and / or(c) containing at least one carboxamide moietywhen the weight ratio of "second compound(s)":dimethyl sulfoxide, is in the range of from about 1,000:1 down to about 3:10 and food grade acceptable salts thereof. Also described are oral sensory perception-affecting (e.g., "coolant")-imparting consumable articles (e.g., mouthwashes and the like) comprising a consumable article base and at least one of the aforementioned oral sensory perception-affecting compositions. Also described are complexes of (i) dimethyl sulfoxide and (ii) at least one of the aforementioned second compounds or group(s) of compounds.

Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients.

Provided is an electric motorcycle including a traveling motor, and a power supply circuit of an inverter and the like, in which a non-conducting cooling oil is supplied to be brought into direct contact with at least one of an electromagnetic coil of the traveling motor and a circuit board of the inverter. A radiator is disposed outside cases of a power plant and a power control controller so as to allow a traveling wind to pass by. Cooling oil is circulated between the radiator and a case of at least one of the power plant and power control controller. A cooling structure for an electric motor and the like that can obtain a higher cooling efficiency than a conventional art while having a simple structure which hardly causes increases in size, weight, cost, and the like can be provided.

Methods and systems are provided for improving fuel usage while addressing knock by adjusting the use of spark retard and direct injection of a knock control fluid based on engine operating conditions and the composition of the injected fluid. One or more engine parameters, such as EGR, VCT, boost, throttle position, and CMCV, are coordinated with the direct injection to reduce torque and EGR transients.

According to the invention, an air compressor includes: one pair of air tanks arranged parallel to each other by being separated from each other in a constant interval, for storing thereinto compressed air; a compressing unit that compresses air sucked from an external space so as to supply the compressed air to the air tanks; and a motor coupled to the compressing unit so as to drive the compressing unit, while the motor and the compressing unit are arranged above the one pair of air tanks; wherein: a cooling fan that generates cooling wind is provided on one end of a rotation shaft of the motor; and a control circuit unit that drives the motor is arranged above the one pair of air tanks and at a position which is overlapped with an axial direction projection area of the cooling fan.

The present invention relates to a cooling system for an engine inside a power generator, in the field of the power generator, which mainly includes a cool air suction hood, an engine housing side cover, an engine housing, a cool air cooling fan, an exhaust pipe; the cool air suction hood is jointed to the engine housing side cover, the left air guide plate and the right air guide plate on the upper of the engine secured to the engine housing, thus form two main cooling and ventilating chambers A and B on the left and right upper portion of the engine. An engine bottom air guide plate is secured to the bottom of engine housing side cover and forms the bottom cooling and ventilating chamber C of the engine with the side cover and an engine crank case rear cover. The engine crank case rear cover, the above-mentioned members, a heat insulation chamber body, a sealing ring and a heat insulation chamber rear hood form a double chamber cooling means of the secondary cooling cycle chamber D. The jointing surfaces of the cooling system are increased. The requirements for cooling the engine are more reasonable so that the portions of the engine with high heat are ensured to be timely cooled and provide a highly cooling effective for the engine.

Abstract of the DisclosureThe invention relates to an air duct for allowing cooling air to flow toward an electronic equipment, and provides the air duct for allowing cooling air to flow installed in a space in the equipment and also provides an electronic equipment using the same air duct. The air duct is structured to be formed of an elastic material, and has a duct body, a ventilation path, an intake part, and an exhaust part. The duct body is detachably installed in a space of an interior of the equipment, and the ventilation path through which air passes is formed in the duct body, and an intake part for taking air in the ventilation path and an exhaust part for exhausting air through the ventilation path are formed respectively in the duct body.

Provided is an electric motorcycle including a traveling motor, and a power supply circuit of an inverter and the like, in which a non-conducting cooling oil is supplied to be brought into direct contact with at least one of an electromagnetic coil of the traveling motor and a circuit board of the inverter. A radiator is disposed outside cases of a power plant and a power control controller so as to allow a traveling wind to pass by. Cooling oil is circulated between the radiator and a case of at least one of the power plant and power control controller. A cooling structure for an electric motor and the like that can obtain a higher cooling efficiency than a conventional art while having a simple structure which hardly causes increases in size, weight, cost, and the like can be provided.

The present invention can achieve the prevention of the corrosion of a metal separator, a reduction in contact resistance and an enhancement in cooling effect in a fuel cell. The separator includes an electrically conductive flat plate and two electrically conductive channel plates superposed on each other with the electrically conductive flat plate interposed therebetween. A plurality of manifolds for passing a reaction fluid to an adjacent cell are provided in the electrically conductive flat plate. A plurality of zigzag or straight through-channels for permitting the flowing of the reaction fluid from the manifolds are formed in each of the two channel plates. The through-channels in any one of the two electrically conductive channel plates are disposed so that they are partially overlapped with the manifolds in the electrically conductive flat plate, and the through-channels in the other electrically conductive channel plate are formed to be partially larger than the contour of the electrically conductive flat plate.

New Peltier semiconductor heat transfer systems are presented herein. In particular, Peltier heat transfer systems of Peltier semiconductor elements of highly unique shape are arranged to bias the cooling side with respect to its size and consequently performance. In effect, a Peltier heat transfer system is created whereby the Peltier called side is greatly reduced in size and the Peltier hot side is greatly expanded in size. Such ‘high aspect ratio’ Peltier systems promote ‘focused’ cooling effect, which is particularly useful in conjunction with high-performance electronic devices having a small footprint. The entire cooling a fact of the Peltier device is brought to the small space approximated by a point. Thus a ‘point’ heat source such as a semiconductor laser are high-performance light emitting diode is more effectively cooled by these systems.

A minimal quantity lubricating system for a handheld electric power tool is configured to output a lubricating fluid for cooling and / or lubricating a material machining process. The system comprises at least one oscillating unit, an electronic unit for applying at least control and / or feedback signals to the at least one oscillating unit, an operating power unit for providing electric power to the electronic unit, a storage tank for the lubricating fluid, and at least one nozzle associated with the at least one oscillating unit for feeding and atomizing the lubricating fluid in a tool working area. A fluid feed line connects the storage tank to a capillary feed of the lubricating fluid to the oscillating unit, and at least one fluid channel at least partially runs through the oscillating unit to connect the oscillating unit to the nozzle for pulsing the lubricating fluid.

An internal cooling structure for a motor, which is effective to remove the heat in the rotor to achieve high cooling effect is provided. The motor includes a stator having a stator coil and a stator core, and a rotor positioned on an inner side of the stator core. The rotor includes a tubular rotor spindle on a rotor drive shaft, and the rotor core is fitted to the rotor spindle. A cooling space is defined between the rotor drive shaft and the rotor spindle. An inner peripheral surface of the rotor spindle confronting the cooling space has tapered shape having large diameter at an end portion. An oil feed passage for a cooling oil is defined inside the rotor drive shaft, and a cooling oil discharge port of such oil feed passage is formed in the rotor drive shaft confronting the cooling space.

A rotor for a steam turbine for working steam and including at least two rotor parts welded to one another using a circumferential, annular weld zone, which is closed in the circumferential direction. A cooling channel system is formed in the rotor and has at least one inlet flow channel, at least one outlet flow channel and at least one cooling channel. In order to simplify the integration of the cooling channel system in the rotor, the weld zone surrounds a cavity which forms a component of the cooling channel system and through which cooling steam flows.

In a hollow valve for an internal combustion engine, including a stem portion, an umbrella portion provided at one end of the stem portion, a gastight cavity that communicates the interior of the stem portion with that of the umbrella portion, and a coolant contained in the cavity, the umbrella portion has a wall portion (a lower cap) having a combustion-chamber-side wall that forms a part of a wall of a combustion chamber of the engine, and a cavity-side wall that forms a part of a wall of the cavity, and at least one high-thermal-conductivity member is provided on the cavity-side wall, for conduction of heat between the wall portion and one of at least the coolant and the stem portion as a heat-conduction medium.

In a diagnostic device and a diagnostic method for a motor unit of an electric vehicle, an oil degradation / others detection unit is provided which is configured to detect at least any one detection item of a contamination degree, a degradation degree, and an oil amount of an oil used for cooling a motor unit or a reduction gear unit during a non-traveling period when the vehicle is powered on. An abnormalities-time control unit is provided which is configured to send notice of abnormalities of an oil supply system or not permit start of rotation of the motor unit when a detection value detected by the oil degradation / others detection unit is out of a setting range.

A transition piece of a combustor that sends high temperature combustion gas to a turbine includes a cylindrical body wall and cooling air passages. The passages are formed in the body wall so as to extend in an axial direction thereof, and each of the passages has cooling air inlet ports opened at an outer circumferential surface of the transition piece and cooling air outlet ports opened at an inner circumferential surface of the transition piece. The cooling air outlet ports form a plurality of lines in a direction oblique with respect to the axial direction of the body wall. A first distance between a first line of the cooling air outlet ports and a second line of the cooling air outlet ports adjacent to the first line is larger than a second distance between the cooling air outlet ports adjacent to each other.

The present invention provides an air-cooled four-stroke internal combustion engine capable of achieving a high degree of cooling. The present invention is directed to an air-cooled four-stroke internal combustion engine including a crankshaft and a fan rotor rotatably driven by the crankshaft to generate cooling air for cooling the engine. The engine comprises an oil pan disposed below the crankshaft. A space formed below the oil pan extends in the axial direction of the crankshaft along the lower surface of the oil pan and allows a cooling air to pass therethrough. An upstream portion of the lower surface is inclined upward, toward the upstream, in a vertical section taken along the axis of the crankshaft to receive the cooling air therein.

An object of the invention is to achieve a high intensity, a compact structure, a cost reduction and a heat radiation of a liquid crystal panel, in a projection type video display apparatus employing a combination of LED light sources and a light pipe. The light pipe is formed in a hollow type so as to be utilized as a cooling wind path. Further, a permeable or reflective baffle plate is provided within the light pipe. Further, the light pipe is formed by coating a mirror on an inner surface of an optical case integrally formed by fixing optical parts. Further, a dichroic mirror is arranged in an LED light source outgoing surface.

Provided is a rotary electric machine housing and a rotary electric machine equipped with the same. The housing allows the reduction of press fitting force required in each of two press fitting steps and has a high cooling effect. This rotary electric machine housing includes an internal cylinder 10 allowing press fitting of a stator 20 along an inner diameter end of the internal cylinder. The internal cylinder 10 has an internal cylinder-side tapered face on its outer diameter end surface. The housing further includes an external cylinder 11 having an external cylinder-side tapered face on an inner diameter end of the external cylinder. The external cylinder-side tapered face fits onto the internal cylinder-side tapered face. It is preferred that an inner diameter of the internal cylinder be smaller than an outer diameter of the stator; an outer diameter of the internal cylinder be larger than an inner diameter of the external cylinder; and a difference between the outer diameter of the internal cylinder and the inner diameter of the external cylinder be larger than a difference between the inner diameter of the internal cylinder and the outer diameter of the stator.

A high voltage electric device attached to a cooling unit includes heating components, an electric circuit board, a case, and an insulating member. The heating components are used at high voltage and are different in size. The heating components are fixed via lead wires respectively to the electric circuit board. The case accommodates the heating components and the electric circuit board. The insulating member seals the heating components and the electric circuit board in the case. An outermost peripheral surface of the insulating member on the cooling unit-side cooled by refrigerant is referred to as a reference surface. Respective shortest distances from the reference surface to the heating components are the same as each other. An electric compressor includes the high voltage electric device, an electric motor that is operated by electric power supplied by the high voltage electric device, and a compression mechanism that is driven by the electric motor and is applied to a refrigeration cycle. The cooling unit is cooled by the refrigerant drawn into the compression mechanism.

The invention relates to a propulsion device, in particular to an underwater propulsion device for divers (1) and swimmers comprising one or several drives (2) provided with electric motors (4) and means (3) for fixing the drives (2) to the legs or arms of the diver (1) or swimmer, wherein the electric motors (4) are provided with a sump cooling, with the electric motors (4) being arranged in waterproof housings (5) and each waterproof housing (5) only being partially filled with a cooling liquid. By arranging the drives (2) on the extremities of the diver (1) or swimmer, the flexibility and mobility are significantly increased; at the same time, the provision of a sump cooling system improves heat dissipation and thus increases the power density.

A fluid discharge pipe structure comprises a cylindrical body 2, an inlet side connection member 4 having a through hole 3 formed in one end part of the cylindrical body 2, an outlet side connection member 6 having a through hole 5 formed in the other end part of the cylindrical body 2, a spiral blade body 7 having spiral blades 24a, 24b and 24c on an outer circumference thereof and built in close to the inlet side connection member 4 of the cylindrical body 2, and a flip-flop phenomenon generating shaft body 8 built in close to the outlet side connection member 6 of the cylindrical body 2.

A gas turbine engine includes a front cooling plate (85) provided on a front stationary section (69) in the vicinity of a front side of a turbine disc (55), a front cooling passage (87) formed between an opposing surface of the front cooling plate (85) and a front surface of a rim of the turbine disc (55), a rear cooling plate (93) provided on a rear stationary section (81) in the vicinity of a rear side of the turbine disc (55), and a rear cooling passage (95) formed between an opposing surface of the rear cooling plate (93) and a rear surface of the rim of the turbine disc (55).

A power conversion device is capable of achieving three requirements to restrict a surge voltage, ensure high radiation performance of SW elements, and restrict ringing at the same time. In a power conversion device, element modules of two SW elements are stacked in a thickness direction via an insulating layer in such a manner that lateral surfaces are aligned parallel to each other in a same orientation, and a positive terminal of one SW element and a negative terminal of the other SW element are disposed so as to overlap each other in the thickness direction.

The present invention relates to a cooling system for an engine inside a power generator, in the field of the power generator, which mainly includes a cool air suction hood, an engine housing side cover, an engine housing, a cool air cooling fan, an exhaust pipe; the cool air suction hood is jointed to the engine housing side cover, the left air guide plate and the right air guide plate on the upper of the engine secured to the engine housing, thus form two main cooling and ventilating chambers A and B on the left and right upper portion of the engine. An engine bottom air guide plate is secured to the bottom of engine housing side cover and forms the bottom cooling and ventilating chamber C of the engine with the side cover and an engine crank case rear cover. The engine crank case rear cover, the above-mentioned members, a heat insulation chamber body, a sealing ring and a heat insulation chamber rear hood form a double chamber cooling means of the secondary cooling cycle chamber D. The jointing surfaces of the cooling system are increased. The requirements for cooling the engine are more reasonable so that the portions of the engine with high heat are ensured to be timely cooled and provide a highly cooling effective for the engine.

In a structure for internally cooling a turbine blade, a cooling medium passage is provided in the turbine blade. The cooling medium passage has a shape in which a plurality of cylindrical spaces, each having substantially cylindrical shape, extending in parallel with each other partially overlap each other. A cooling medium supply passage that supplies a cooling medium to the cooling medium passage is connected to a portion of the cooling medium passage that includes a peripheral wall, in a direction that forms an acute angle with respect to a longitudinal direction of the cooling medium passage.

A ball screw apparatus is provided which is less likely to increase dynamic friction torque even when a nut is contracted by cooling, and in which cooling effect is made as high as possible and which does not invite excessive machining efficiency droop and increase in pressure loss. The ball screw apparatus includes a screw shaft, a nut screwed with the screw shaft via a plurality of balls, and a cooling section cooling the nut. The plurality of balls to which preload is applied in a two-point contact state, with a preload direction as a tensile direction, are disposed between a screw groove of the screw shaft and a screw groove of the nut. Or, a ratio of the axial length L of the through hole axially formed in the nut and the diameter D of the through hole axially formed in the nut is given by an equation “10≦L / D≦60”.

To provide a semiconductor equipment having high heat-transfer effect and breakdown voltage, and a method of manufacturing the same. The semiconductor equipment includes: a sealed container; a stem connected to the sealed container via a stem peripheral portion; and a semiconductor chip mounted on a top surface of the stem, inside the sealed container. The semiconductor chip is electrically connected to a lead provided to the stem, the stem peripheral portion, which is of a material that is different from the material of stem and the same as the material of the sealed container, is bonded along a periphery of the stem, and the sealed container is filled with a working fluid including at least one of ethanol, a perfluorocarbon, and a fluoroether.