摘要:
A herbicidal composition comprises a bipyridylium salt and a thiocarbamate having the formula ##STR1## wherein R and R.sub.1 each represent a lower alkyl group which in combination with each other can form a heterocyclic ring with the N atom; R.sub.2 represents ##STR2## AND X represents a halogen atom or a lower alkyl group; and n represents 0, 1 or 2.
摘要:
A pressure responsive switch performing switching operation for converting pressure variations into electric variations is disclosed in which the actuating pressure of a snap switching member is adjusted by changing the contact pressure between a pressure applied member and the snap switching member which is in contact with the pressure-applied member. The gap between the break contact of the pressure responsive switch is adjusted thereby to adjust the difference between the pressure between the make contact of the switch when it is closed and the pressure between the break contact of the same when it is closed.
摘要:
A process for producing a high-purity vinyl ether, which comprises: a step of subjecting an alcohol represented by the general formula (1) R—O—H (1) to a vinyl ether formation reaction in the presence of a catalyst to synthesize a vinyl ether represented by the general formula (2), R—O—CH═CH2 (2) a step of removing the catalyst from the reaction mixture obtained in the above step to obtain a crude vinyl ether containing the vinyl ether and the unreacted raw material alcohol, a step of reacting the unreacted raw material alcohol in the crude vinyl ether, with the vinyl ether in the presence of an acid catalyst, to convert the alcohol into an acetal represented by the general formula (3), and a step of subjecting a crude vinyl ether containing the acetal (III) to distillation to obtain a high-purity vinyl ether.
摘要:
An oil pump apparatus which includes an oil pump for being driven by a driving source and for being connected to a plurality of components to which an oil is supplied from the oil pump and a control valve preventing the oil which is unnecessary to the components from flowing into the components, wherein at least one of the components is an actuator operated by an oil pressure generated by the oil pump and wherein the control valve permits the oil of which the quantity is smaller than that of the oil which is consumed by the actuator to flow into the components when the actuator is not operated and the control valve permits the oil of which the quantity is larger than that of the oil which is consumed by the actuator to flow into the components when the actuator is operated.
摘要:
An oil pump system includes an oil pump, a first hydraulic passage, a second hydraulic passage, a return hydraulic passage, and a control valve. When a revolving speed of a rotor of the oil pump is low, and when a hydraulic pressure of a hydraulic oil, discharged out of a first outlet port of the oil pump to the first hydraulic passage, is lower than a predetermined value, a valve body of the control valve is placed at a first position, thereby joining the hydraulic oil, flowing in the first hydraulic passage, with the hydraulic oil, discharged out of a second outlet port of the oil pump to the second hydraulic passage, and delivering the thus joined hydraulic oil to a hydraulic oil receiving unit via a hydraulic-oil-delivery passage. When the revolving speed of the rotor is high, and when the hydraulic pressure of the hydraulic oil, discharged out of the first outlet port to the first hydraulic passage, is higher than the predetermined value, the valve body is placed at a second position, thereby inhibiting the hydraulic oil from joining, and delivering only the hydraulic oil, discharged out of the first outlet port to the first hydraulic passage, to the aforementioned destination. The oil pump system is downsized and lightweighted advantageously, and is improved in terms of work efficiency and on-boardability.
摘要:
Thiolcarbamic acid esters having the formula ##STR1## wherein X represents hydrogen or chlorine atom and n represents an integer of 2 to 3 are disclosed.
摘要:
A valve timing control apparatus includes a driving rotation member, a driven rotation member, an advance angle chamber displacing a rotation phase of the driven rotation member relative to the driving rotation member in an advance angle direction, a retard angle chamber displacing the relative rotation phase in a retard angle direction, a groove provided on at least one of an inner surface of the driving rotation member and an outer surface of the driven rotation member for supplying the hydraulic fluid to a sliding contact portion formed by the inner surface of the driving rotation member and the outer surface of the driven rotation member, an advance angle oil passage, a retard angle oil passage, and a groove oil passage for supplying the hydraulic fluid to the groove.
摘要:
An inexpensive and secure key management system provides a digital content copy protection system and a method for the same. The key management system is constituted by a master data memory configured to be stored with a device key, a secret data management block configured to convert the device key to a plain text key, a write-in and encryption process block including an encrypting function block for encrypting the plain text key, a nonvolatile memory configured in a first chip and stored with an encryption key encrypted by the write-in and encryption process block, and a signal processing LSI configured in a second chip and including a decrypting function block for decrypting the encryption key.
摘要:
A water pump includes a pump body and a block which are respectively provided with attachment surfaces that surround an opening defined by a vortex chamber. A first one of the attachment surfaces is provided with an annular groove. An annular sealing member is embedded in the annular groove. A sealing mechanism for the water pump includes the annular sealing member having a protruding segment protruding from a periphery of the annular sealing member such that the protruding segment extends outward from an outer periphery of a second one of the attachment surfaces; and the annular groove having a branching groove segment which branches out from the annular groove and is provided in the first one of the attachment surfaces such that the protruding segment is embedded in the branching groove segment.
摘要:
An internal gear oil pump rotor assembly which enables the construction of an oil pump that is compact and has high performance. In the oil pump rotor assembly having an inner rotor and an outer rotor, the number of teeth “Zi” of the inner rotor with trochoid tooth profiles is set to be equal to or fewer than “6”, and a ratio Si/So is set so as to satisfy the following inequalities: 0.8≦Si/So≦1.3, where Si is a cross-sectional area of one external tooth which is formed outside a root circle that is formed along the bottoms of the external teeth of the inner rotor, and So is a cross-sectional area of one internal tooth which is formed inside a root circle that is formed along the bottoms of the internal teeth of the outer rotor.
摘要翻译:内齿轮油泵转子组件,其能够构造紧凑且具有高性能的油泵。 在具有内转子和外转子的油泵转子组件中,具有次摆线齿廓的内转子的齿数“Zi”设定为等于或小于“6”,并且比率Si / So为 设定为满足以下不等式:0.8 <= Si / So <= 1.3,其中Si是沿着沿着圆的外部齿的底部形成的根圆形成的一个外齿的横截面积 内转子,以及So是形成在沿着外转子的内齿的底部形成的根圆内的一个内齿的横截面积。