摘要:
An improved structure of a mechanical seal for keeping a gas chamber and a reference gas chamber airtight in a sensor body. A packing seal is disposed between a shoulder formed on an inner wall of a housing of the sensor body and a tapered surface of an insulation porcelain installed in the housing to define the gas chamber and the reference gas chamber hermetically. The packing ring is formed by a metal plate which has a thickness of 0.1 mm or more and a Vickers hardness of 200 or less and which is made of at least one of a nickel, a nickel alloy, a titanium, and a stainless steel.
摘要:
An insolation sensor for detecting a substantial insolation direction from the sun including a light shading film an aperture defined therein and provided on one of the surfaces of a glass substrate. A position detection element having a photoelectric conversion film made of a semiconductor is formed on the other surface. The rays of light from the sun are incident as a spot beam H onto the position detection element through the aperture. The position detection element detects a center of the intensity of photocurrent at the beam receiving portion. Therefore, even when the intensity of each of the direct rays and scattered rays from the sun change on the ground depending on the weather conditions, the center position of the distribution of the insolation intensity can be detected in accordance with the weather conditions, and a substantial insolation direction can be detected.
摘要:
A throwaway tip for use in a lathe cutting tool. The tip has a cutting edge along the outer periphery and a succession of recesses are formed on the cutting surface. The recesses form a chip curling and cutting mechanism irrespective of the driving direction of the tip. The recesses may be of uniform diameter or preferably increase toward the center of the cutting edge line. The recesses may also be bevelled to facilitate entry and cutting of the chips.
摘要:
In order to provide an engine oil supply apparatus including a second oil pump (12) which can draw in and discharge oil quickly regardless of whether or not a first oil pump (11) is driven and which does not need to be large, an engine oil supply apparatus (Y) includes a first oil pump (11) drawing oil through a first oil passage (21) from an oil holder (13) holding oil, a second oil pump (12) connected in series with the first oil pump (11) through a connection oil passage (26) and driven independently of the first oil pump (11), a first supply oil passage (23) for supplying oil to a first circulation section (41) from the first oil pump (11), and a second supply oil passage (24) for supplying oil to a second circulation section (42) from the second oil pump (12). In the engine oil supply apparatus (Y), a first oil reservoir (15) holds oil to be supplied to the second oil pump (12) and is provided independently of the oil holder (13) is provided.
摘要:
The engine balancer unit includes a first oil pan attaching to the bottom of an engine cylinder block, a second oil pan attaching to the first oil pan to close a bottom of the first oil pan, and a unitary case inserted in the first oil pan to support counterbalance shafts with balance weights. The cylinder block does not need to be modified to install the engine balancer unit because the first oil pan which encloses the unitary case is attached under the cylinder block. Further, fluid tightness between the first oil pan block is not spoiled by the unitary case because the unitary case is provided inside the first oil pan. Furthermore, fluid tightness between the first oil pan and the second oil pan is not spoiled by conventional fastening structure.
摘要:
A process for production of inositol comprising the steps of (1) culturing a microorganism capable of extracellularly secreting inositol and belonging to the genus Candida in a medium so as to extracellularly accumulate inositol in the medium; and optionally (2) recovering inositol from the culture. Preferably, the producer microorganism is resistant to an antibiotic such as cerulenine or D-cycloserine, or resistant to a glucose metabolism antagonist such as 2-deoxyglucose.
摘要:
A supercharged diesel engine is comprised an intake pipe, a diesel engine which is including an air cleaner and a cylinder which are installed both end of the intake pipe, respectively, a supercharger provided in the intake pipe and set to be driven by the diesel engine via clutch device, a bypass passage which is installed in the intake pipe in parallel with the supercharger, a bypass valve and a throttle device which are arranged on the bypass passage in series and the supercharger being supplied air in the case of that the bypass valve is opened and being rotated by the air.
摘要:
Microorganisms belonging to the genus Providencia or the genus Escherichia and having a resistance to isoleucine antagonist, produce L-threonine by fermentation in higher yield and in more amount of L-threonine accumulated.
摘要:
A centrifugal supercharger includes a housing, an input shaft rotatably supported on the housing, a pulley related with one end of the input shaft, an output shaft rotatably supported on the housing, a compressor rotor fixed to one end of the output shaft, a cover located around the compressor rotor, and fixed to the housing, and forming a supercharging passage, an rotating speed step-up device connecting between other end of the input shaft and other end of the output shaft, an oil-supplying device integrated with the step-up device, and a distributing device faced with the oil-supplying device, and formed on the housing.
摘要:
An ultrasonic test method for detecting a defective portion more precisely in a noncontact reflection way, and ultrasonic test instrument used for the method. An ultrasonic wave is transmitted from a transmitter (20 (21)) provided on one side of an object under test, and the reflected wave is received by a receiver (30 (31)) provided on the same side. The ultrasonic wave is transmitted/received through an air layer between the transmitter and the object (100) under test and between the receiver and the object (100). The relative positions of the transmitter (20), the receiver (30), and the object (100) are so determined that the air propagation time ta of the air path (RA) between the transmitter and the receiver is longer than the propagation time tb of the reflected wave in the reflection path (RB). The propagation of the ultrasonic wave through the solid body between the transmitter and the receiver is blocked. This invention is suitable to test laminated material (100) such as a laminate of CFRP (101) and insulation (102) in a noncontact way.