摘要:
An automatic transmission includes a gear transmission mechanism including first and second friction mechanisms which are alternatively engaged by alternative supply of first and second pressures thereto when the highest speed stage and the next to highest speed stage are alternatively engaged, and a torque converter including a lockup clutch. A transmission control system includes a pressure control system which controls the gear transmission mechanism by selectively supplying those pressures and possibly others thereto, a lockup clutch control valve which according to its switched position controls the engagement of the lockup clutch and which is switched to its engage position by a control pressure, and a lockup clutch interrupt valve, which selectively transmits the first pressure to the lockup clutch control valve as the control pressure, which is supplied with the second pressure which when present switches it positively to its non communicating condition, and which is also supplied with governor pressure which in the absence of the second pressure switches it to the communicating condition when this governor pressure is higher than a certain value, and otherwise leaves it in the non communicating condition.
摘要:
Described herein is a hydraulic servo suitable for friction coupling elements in automatic transmissions. The hydraulic servo of the invention is compact in construction and easy to assemble, including an annular drum rotatably or fixedly mounted in an automatic transmission case, a piston provided in a predetermined position of the drum, a return spring provided on the piston, and a connecting member for connecting the return spring and the piston, characterized in that the piston is provided with a guide sleeve at the tip end of one end face thereof for guiding one end of said connecting member.
摘要:
A multi-disk brake for an automatic transmission having a plurality of annular outer lamellae having a larger diameter and a plurality of annular inner lamellae having a smaller diameter, the outer and inner lamellae being alternately arranged and interleaved in the axial direction. The outer lamellae are splined to the transmission case while the inner lamellae are rotatably supported on the case. The multi-disk brake has an engagement/disengagement mechanism capable of pressing the outer and inner lamellae so as to bring the same into frictional engagement and capable of disengaging and releasing the outer and inner lamellae from each other. A support member is inserted into the lowermost portion of an annular gap formed between outer the peripheral surfaces of the outer lamellae and the inner peripheral surface of the case, the support member supporting the outer lamellae biases them upward, thereby preventing any rotational drag motion of the outer lamellae.
摘要:
A hydraulic control device for an automatic transmission capable of adjusting the amount of lubricating oil in accordance with a load on a torque converter is provided. A main regulator valve regulates hydraulic oil from an oil pressure source on the basis of a stator reaction force of the torque converter to generate a line pressure for operating engagement of a frictional engagement element. A line pressure switching section switches the line pressure to a low line pressure in a region in which a higher line pressure is not required in response to a driving state of a vehicle, and switches the line pressure to a high line pressure when a target value of an engagement hydraulic oil pressure exceeds a predetermined pressure. A lubricating regulator valve is provided in a lubricating oil passage connected from the main regulator valve to regulate a hydraulic pressure in the lubricating oil passage to a given pressure in response to a driving state of the vehicle. A torque converter regulator valve controls a pressure inside the torque converter. A lubricating shift valve switches between an oil passage for supplying hydraulic oil discharged from the torque converter into the lubricating oil passage and an oil passage for discharging lubricating oil discharged from the torque converter regulator valve.
摘要:
An optical film for protecting a polarizer is provided that is excellent in mass productivity and is capable being imparted with characteristics by application while maintaining optical characteristics and moisture resistance of polypropylene polymerized with a metallocene catalyst. A polarizer film and an image display device using the same are also provided that have high performance.The optical film for protecting a polarizer of the present invention contains a mixed resin containing polypropylene that is polymerized with a metallocene catalyst, and graft-modified polypropylene.
摘要:
Provided are an optical film for a protection film for polarizer, excellent in optical properties such as small haze, excellent transparency and small birefringence, having good mechanical strength and heat resistance, and excellent in water vapor transmission rate; a polarizing film having the film as a protection film on one or both surfaces of a polarizer; and an image display device comprising the polarizing film. The optical film for a protection film for polarizer comprises a polypropylene-based resin produced with a metallocene catalyst.
摘要:
An ultrasonic sensor includes a resin substrate and an ultrasonic oscillator. The ultrasonic oscillator is provided approximately at the center of a component side of the resin substrate and generates and detects an ultrasonic wave. The resin substrate is made of, for example, a polycarbonate resin, i.e., the same material as a car bumper, and is shaped into a flat plate. The component side of the resin substrate is provided with a pad 11 adjacent to the ultrasonic oscillator. The pad is used for metal wiring based on wire bonding. The pad is made of a hard metal material excellent in conductivity and heat resistance such as stainless steel, and Al or Al alloy, for example. The resin substrate is formed as a single piece through insert molding by pouring a melted resin. Through this process, the pad is provided for the component side of the resin substrate.
摘要:
An object of the present invention is to provide an ink compositions which, when used with an ink jet recording apparatus, can realize excellent ink ejection stability while maintaining safety and satisfactory penetration of ink. The ink composition according to the present invention comprises at least a colorant, a humectant, a glycol monoether as a penetrating agent, a 1,2-alkanediol, and water, the weight ratio of the glycol monoether to the 1,2-alkanediol being in the range of 1:5 to 5:1. According to another aspect of the present invention, there is provided an ink composition comprising at least a pigment, a dispersant for dispersing the pigment, a 1,2-alkanediol, and water as a main solvent, the content of the 1,2-alkanediol being 0.5 to 10% by weight based on the total amount of the ink composition.
摘要:
A process for producing a pigment dispersion is disclosed. This process comprises the steps of: providing a mixture consisting essentially of a pigment, a dispersant, a polysiloxane surfactant and/or an alkanediol, a polyhydric alcohol, and water; and dispersing the ingredients of the mixture in one another. A process for producing an ink composition is also disclosed wherein the above pigment dispersion is mixed with a member selected from the group consisting of water, a surfactant, a wetting agent, a pH adjustor, and mixtures thereof. This ink composition can realize good image quality.
摘要:
A water-based ink composition for ink-jet printing, containing at least pigment, a dispersing resin, a surface active agent, an organic solvent and water, in which the pigment is dispersed with the dispersing resin, characterized in that the dispersing resin comprises a copolymer (I) prepared by polymerizing a monomer mixture (I) containing a monomer (A) represented by the formula (I), a monomer (B) represented by the formula (II) and a monomer (C) represented by the formula (III) and a copolymer (II) prepared by polymerizing a monomer mixture (II) containing a monomer (D) represented by the formula (IV) and a monomer (E) represented by the formula (V).