摘要:
A solenoid for an electromagnetic valve is provided with a bobbin on which a coil has been wound, a movable iron core fitted into an iron core hole of the bobbin and a fixed magnetic pole member attracting the movable iron core, the movable iron core has a main body portion with an even section fitted into the iron core hole, and a flange portion with an even section formed on a portion extending from the iron core hole of the main body distal end, and the ring has a first portion which is positioned on a distal end side and which has a large diameter hole in which the flange portion is fitted and a second portion which is positioned on a proximal end side and which has a small diameter hole in which the main body portion is fitted.
摘要:
A pilot operated change-over valve which can operate either as a double solenoid type or as a single solenoid type by replacement of part of its components, and includes a valve casing accommodating a valve member 8, a large diameter piston 12a and a small diameter piston 12b, an electromagnetic pilot valve 3a provided at one axial end of the valve casing 4 on the side of the large diameter piston 12a for driving same, and a common interfacial end face 6b provided at the other axial end of the valve casing 4 on the side of the small diameter piston 12b, the common interfacial end face being connectible either to a second electromagnetic pilot valve 3b for driving the small diameter piston or to an adapter plate 26 for supplying a pilot fluid constantly toward the small diameter piston.
摘要:
A pilot-type change-over valve which includes a main valve segment, a poppet-type amplifying pilot valve that switches the main valve segment by use of a pilot fluid, and a solenoid pilot valve that switches the amplifying pilot valve by use of the pilot fluid. The use of the amplifying pilot valve whose capacity is larger than that of the solenoid pilot valve and corresponds to that of the main valve segment permits switching the large-capacity main valve segment with the small solenoid pilot valve with small power requirement.
摘要:
Purine derivatives shown by general formula [I] or pharmacologically acceptable salts thereof. Suppressants for inflammatory diseases containing an effective ingredient of said purine derivative. ##STR1## (wherein, R represents one group selected from the groups composed of H atom, a straight chain alkyl group having 1-10 carbon atoms, a branched chain alkyl group having 3-10 carbon atoms, an alkyl group having 1-10 carbon atoms substituted with one carboxyl group, 4-carboxybenzyl group and phenethyl group).Above mentioned purine derivatives prevent the tissue damages due to mediators such as active oxygen and TXA.sub.2 in the initial stage of inflammation, and prevent the subsequent aggravation of inflammatory responses due to the adhesion of activated leukocytes to the cells in the lesion, and exhibit efficacy as anti-inflammatory drugs in all stages of inflammatory diseases caused by leukocytes.
摘要:
In a pilot-driven spool type change-over valve, a lateral width of a valve body and sizes of each port and valve hole are efficiently determined in such a manner that flow rate or fluid per unit time reaches the highest value without substantially impairing responsiveness in order to increase ability to change over the fluid. An inner diameter of the valve hole a lateral length of an opening of the port are set to substantially the highest value as determined by lateral width of the valve body, and longitudinal diameter a of an opening of each port, i.e. length in axial direction in the valve hole, is set to such a size that a characteristic value given by a/W.sup.2 is 1.5 to 2.2.times.10.sup.-2.
摘要:
A mixed carbon material is useful for an electrode of a nonaqueous secondary battery. The material has two component materials: carbon material A and carbon material B. Both materials have high capacity and rapid charge-discharge characteristics. Carbon material A, a multilayer-structure material containing an amorphous carbon covering the surface of a graphitic particle, has particularly excellent charging-discharging properties. Carbon material B has particularly excellent electrical conductivity properties. A battery with an electrode having the mixed carbon material can have both rapid charge-discharge characteristics and high cycle characteristics.
摘要:
A negative-electrode active material for a lithium ion secondary battery, which is capable of storing/releasing lithium ions, wherein the negative-electrode active material is obtained by crosslinking a surface functional group of a raw material for negative electrode; a process for producing the negative-electrode active material; and a negative electrode for a lithium ion secondary battery and a lithium ion secondary battery both employing the negative-electrode active material. According to the invention, a negative-electrode active material for a lithium ion secondary battery can be provided which facilitates electrode production and gives a battery reduced in irreversible capacity in charge/discharge.
摘要:
To provide an electromagnetic valve where an end cover can easily be fitted into a valve hole, and a valve body can be small-sized. In an electromagnetic valve, an end cover 30 for closing a hole end 21e of a valve hole 21a formed in a valve body 21 is constituted by a lid plate 31, a plurality of arm pieces 31a provided so as to extend from a peripheral edge of the lid plate 31, engagement resilient pieces 32 provided on a side of an inner face of the lid plate 31 from the arm pieces 31a in a standing manner, respectively, and which are formed at their distal end portions with engagement claws 33 expanding in a taper shape, and a fitting cylindrical portion 34 which is provided in a projecting manner on an inner face of the lid plate 31 such that its height from the inner face is lower than those of the engagement resilient pieces 32 and which is disposed on its outer periphery with a seal member 25, the fitting cylindrical portion 34 is tightly fitted into the hole end 21e opened in the valve body 21, and the engagement claws 33 are engaged with stepped portions 21c in engagement grooves 21b provided in a recessed manner in the vicinity of the hole end 21e of the valve body 21.
摘要:
To provide an electromagnetic valve where constitution and assembling of a current conduction system to a solenoid portion is simplified to improve assembling easiness and an insulation performance of the current conduction system can easily be secured. In an electromagnetic valve provided with a valve portion 1 having a valve body switching flow paths according to approach to/separation from a valve seat in a housing 10 and a solenoid portion 2 driving the valve body, the housing 10 is formed from electrically insulating synthetic resin, a current conduction terminals 40 constituting a current conduction system of the solenoid portion is inserted into a terminal insertion hole 45 opened on a joining face 10a of the housing 10 with the solenoid portion 2 so that the solenoid portion and the valve portion are fixed to each other, and an opening 48 through which contact terminals 53 extend front the outside to the current conduction terminals 40 in the terminal insertion hole 45 to be electrically connected thereto is provided in the housing.
摘要:
There is provided a solenoid for electromagnetic valve, which has a small size and large attraction force, and is excellent in economization. In the solenoid for electromagnetic valve, a stationary iron core 5, a movable iron core 6 and the center hole 4a of a bobbin 4 individually have an elliptic or substantially rectangular cross section. Further, a relation of d=(0.4 to 0.8) W is formed between a winding outer diameter W on a shorter axis or side of a coil 7 wound around the bobbin 4 and having an elliptic or rectangular cross section and a diameter “d” of virtual cylindrical iron core having the same cross sectional area as a coil inside cross sectional area S. Further, a ratio of a length “a” of a longer axis or side to a length “b” of the shorter axis or side is set to a range of 1.3≦a/b≦3.0 in the cross section of the stationary iron core 5 and the moving iron core 6.
摘要翻译:提供了一种具有体积小,吸引力大的电磁阀用螺线管,节省了优异的效果。 在电磁阀的螺线管中,固定铁芯5,可动铁芯6和绕线管4的中心孔4a分别具有椭圆形或大致矩形的截面。 此外,在线圈架4上卷绕的线圈7的短轴或侧面的卷绕外径W之间形成d =(0.4〜0.8)W的关系,并且具有椭圆形或矩形截面,直径“d” 具有与横截面积S内的线圈相同的横截面积的虚拟圆柱形铁芯。此外,设定长轴或侧的长度“a”与短轴或侧的长度“b”的比率 在固定铁芯5和移动铁芯6的横截面中为1.3 <= a / b <= 3.0的范围。