摘要:
Al and Al alloy materials for a fin are disclosed which contain Fe of 0.2% or less and Si of 0.1% or less and exhibit improved thermal conductivity, sacrificial anode effect and sagging resistance. Also, a heat exchanger having a fin made of the Al and Al alloy material incorporated therein is disclosed. The heat exchanger is lightweight and excellent in corrosion resistance and heat radiation.
摘要:
A piston is slidably provided in a cylinder and partitions a first pump chamber, and a second pump chamber connected to an object to be operated. A first on-off valve is provided between the first pump chamber and the outside. A second on-off valve is provided in a connecting flow passage that connects the first pump chamber and the second pump chamber to each other. When the piston is moved forward by an electromagnetic force of a solenoid portion, a capacity of the first pump chamber decreases, and a capacity of the second pump chamber increases. When the piston is moved backward by a biasing force of a spring, the capacity of the first pump chamber increases, and the capacity of the second pump chamber decreases. A pressure receiving area of the front face of the piston is larger than that of the back face thereof.
摘要:
A collector device of a non-woven fabric manufacturing apparatus electrostatically attracts and stacks fibers charged at a first electrical polarity on a front surface of a base sheet. The collector device comprises an electrode disposed to face a back surface of the base sheet at a distance, the electrode is supplied with a voltage having a second electrical polarity opposite to the first electrical polarity or grounded, and a plurality of charge holding members positioned between the base sheet and the electrode. The charge holding members serially come in contact with and get away from the back surface of the base sheet at random.
摘要:
A hydraulic control apparatus for an automatic transmission has a circulating oil supply passage that supplies circulating oil to a starting apparatus, a circulating oil discharge passage that discharges circulating oil from the starting apparatus, and a speed change mechanism oil supply passage that supplies oil to a speed change mechanism. The oil discharged from an oil pump is supplied to the starting apparatus and the speed change mechanism. A first flow rate changing device that can change the flow rate of the circulating oil is arranged in the circulating oil discharge passage. A first flow rate instructing portion output a command to the flow rate changing device to change the flow rate when the amount of oil discharged from the oil pump is low, and reduces the flow rate to the starting apparatus, which enables the hydraulic pressure necessary for shifting to be obtained in the speed change mechanism.
摘要:
In a hydraulic control device, when a solenoid pressure from a linear solenoid valve is not supplied to a brake, which is normally not engaged at the same time as a brake, not to engage the brake, a switching valve is supplied with a line pressure as a signal pressure for establishing a blocked/discharge state in which supply of the solenoid pressure to the brake is blocked and a hydraulic pressure can be discharged from the brake. When the solenoid pressure is supplied to the brake to engage the brake, the switching valve is supplied with a modulator pressure, which is lower than the line pressure, as a signal pressure for establishing a communicated state in which the solenoid pressure can be supplied to the brake.
摘要:
A nanofiber manufacturing apparatus for fabricating nanofibers from a raw material liquid by electrostatic explosions includes a housing internally having an electrospinning space in which nanofibers are fabricated, and a support structure for supporting an electrospinning head including nozzles for ejecting the raw material liquid into the electrospinning space. The support structure is fittable to and removable from the housing and is enabled to self-stand in a state of having been removed from the housing.
摘要:
The present technology is an epoxy resin composition containing an epoxy resin (A), a urethane resin (B) in which the terminal isocyanate of the urethane prepolymer is blocked by at least one of an ε-polycaprolactam, an oxime, or a pyrazole, and in which bisphenol A is included in the backbone of the aforementioned urethane prepolymer, and a curing agent (C).
摘要:
An exemplary control device includes an input torque detection unit that detects an input torque input to the input shaft; and a controller that: determines torque distribution of two of the friction engagement elements that form the shift speeds; and calculates a transmission torque of the two friction engagement elements based on the input torque and the torque distribution and sets the engagement pressure to obtain a torque capacity that can transmit the transmission torque, wherein the controller sets the engagement pressure such that slippage does not occur in the two friction engagement elements in a state where engagement of the two friction engagement elements forms the shift speeds and such that, even if an additional friction engagement element engages based on the line pressure while the two friction engagement elements are engaged, one of the three friction engagement elements is caused to slip.
摘要:
A hydraulic control apparatus of an automatic transmission which can supply a hydraulic oil pressure to one or more hydraulic servos of frictional engagement elements at a failure time when a de-energized condition is attained. The apparatus includes a normally closed type first solenoid valve for generating the hydraulic oil pressure, and a normally open type second solenoid valve for outputting a first signal pressure for adjusting and controlling an oil pressure to a line pressure; a signal output device for outputting the line pressure or a modulator pressure. The line pressure is reduced to a certain pressure, as a second signal pressure at a normal time, and causes the second signal pressure not to be output at the failure time; and an oil pressure switching device switchable between a normal time position in which the hydraulic oil pressure from the first solenoid valve can be supplied to the hydraulic servo, and a failure time position in which the input line pressure is supplied to the hydraulic servo, is switched to the normal time position by the first signal pressure and second signal pressure, which are input opposed to each other, being input, and switched to the failure time position by the first signal pressure being input and the second signal pressure not being input.
摘要:
A nanofiber production device produces nanofibers by stretching, in a space, a solution. The nanofiber production device includes: an effusing body which effuses the solution into the space by centrifugal force; a driving source which rotates the effusing body; a supplying electrode which is placed at a predetermined distance from the effusing body and supplies charge to the solution via the effusing body; a charging electrode to which a potential of reverse polarity to a polarity of the effusing body is applied, with the charging electrode being placed at a predetermined distance from the effusing body; and a charging power source which applies a predetermined voltage between the supplying electrode and the charging electrode.