摘要:
A compact self-ballasted fluorescent lamp which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp includes a cover, a lighting circuit, an arc tube-a base and a globe and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube is comprised of a plurality of U-shaped bent bulbs which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope comprising the cover and the globe has a height ranging from 110 to 125 mm, including the height of the base.
摘要翻译:提供一种相当于典型灯泡的紧凑型自镇流荧光灯。 自镇流荧光灯包括盖,点灯电路,电弧管 - 基座和球形体,并且形成为轮廓尺寸几乎与典型灯泡的标准尺寸相同的形状。 电弧管由多个U形弯管构成,其内管直径范围为6至9mm,彼此平行。 具有50至60mm的灯泡高度和200至300mm长的放电路径,电弧管被设计为使得总光通量不小于700lm,灯效率不低于60lm / W 当灯以7至15W的灯功率点亮时。包括盖和地球的信封具有110至125mm的高度,包括底座的高度。
摘要:
A compact self-ballasted fluorescent lamp which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp includes a cover, a lighting circuit, an arc tube, a base and a globe and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube is comprised of a plurality of U-shaped bent bulbs which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope comprising the cover and the globe has a height ranging from 110 to 125 mm including the height of the base.
摘要翻译:提供一种相当于典型灯泡的紧凑型自镇流荧光灯。 自镇流荧光灯包括盖,点灯电路,电弧管,基座和球形体,并且形成为外形尺寸几乎与典型灯泡的标准尺寸相同的形状。 电弧管由多个U形弯管构成,其内管直径范围为6至9mm,彼此平行。 具有50至60mm的灯泡高度和200至300mm长的放电路径,电弧管被设计为使得总光通量不小于700lm,灯效率不低于60lm / W 当灯以7至15W的灯功率点亮时。包括盖和地球的信封具有110至125mm的高度,包括底座的高度。
摘要:
A compact self-ballasted fluorescent lamp (10) which is equivalent to a typical light bulb is provided.The self-ballasted fluorescent lamp (10) includes a cover (14), a lighting circuit (16), an arc tube (18), a base (12) and a globe (17) and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube (18) is comprised of a plurality of U-shaped bent bulbs (31) which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube (18) is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope (19) comprising the cover (14) and the globe (17) has a height ranging from 110 to 125 mm, including the height of the base (12).
摘要:
A compact self-ballasted fluorescent lamp (10) which is equivalent to a typical light bulb is provided. The self-ballasted fluorescent lamp (10) includes a cover (14), a lighting circuit (16), an arc tube (18), a base (12) and a globe (17) and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube (18) is comprised of a plurality of U-shaped bent bulbs (31) which have an inner tube diameter ranging from 6 to 9 min and arranged in parallel with one another. Having a bulb height -ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube (18) is designed such that the total luminous flux is not less than 700 1m with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W, An envelope (19) comprising the cover (14) and the globe (17) has a height ranging from 110 to 125 mm including the height of the base (12).
摘要:
A compact self-ballasted fluorescent lamp (10) which is equivalent to a typical light bulb is provided The self-ballasted fluorescent lamp (10) includes a cover (14), a lighting circuit (16), an arc tube (18), a base (12) and a globe (17) and formed into a shape whose outline dimensions are nearly identical to the standard dimensions of a typical light bulb. The arc tube (18) is comprised of a plurality of U-shaped bent bulbs (31) which have an inner tube diameter ranging from 6 to 9 mm and arranged in parallel with one another. Having a bulb height ranging from 50 to 60 mm and a discharge path from 200 to 300 mm long, the arc tube (18) is designed such that the total luminous flux is not less than 700 lm with a lamp efficiency of not less than 60 lm/W when the lamp is lit at the lamp power of 7 to 15 W. An envelope (19) comprising the cover (14) and the globe (17) has a height ranging from 110 to 125 mm, including the height of the base (12).
摘要:
A fluorescent lamp unit includes a fluorescent lamp having a bulb constituting one discharge path, said bulb including three U-shaped tube portions, a lighting circuit operatively connected to the fluorescent lamp for lighting the fluorescent lamp, and a cover part having a cap at one end thereof and having a globe at other end thereof for containing the lighting circuit and the fluorescent lamp. Each of the three U-shaped tube portions has a pair of straight tube portions provided straight in a direction along to a basic center axis of the fluorescent lamp unit and has a bent portion being bent so as to be convexly curved toward the globe side opposite to the cap side thereby to form substantially U-shape and linking the glove side ends of the pair of straight tube portions. The straight tube portions are arranged equidistantly on a circumference of a certain radius from the basic center axis. The three U-shaped tube portions are formed so that minimum gaps c1, c2a, and c2b between the inner surface of the globe and each of the outer surfaces of the globe side ends of the three U-shaped tubes have substantially a same length.
摘要:
A pump liquid chamber (9) is formed inside a pump bellows (7). A suction port (18) and a discharge port (19) are formed in a wall face (4a) facing the liquid chamber (9). The suction port (18) communicates with a pump inflow passage (5), and the discharge port (19) communicates with a pump outflow passage (6). A suction check valve (20) is disposed in the suction port (18). An accumulator liquid chamber (31) is formed inside an accumulator bellows (29). An inflow port (23) and an outflow port (24) are formed in a wall face (28a) facing the liquid chamber (31). The inflow port (23) communicates with an accumulator inflow passage (33), and the outflow port (24) communicates with an accumulator outflow passage (34). The accumulator inflow passage (33) is connected to the downstream of the pump outflow passage (6). A discharge check valve (21) of the pump (P) is disposed in the accumulator inflow passage (33) in an accumulator body (25).
摘要:
It is an object of the invention to, even in the case where liquid containing a sedimenting material such as slurry is used, prevent sedimenting and aggregation from occurring in a pump. As means for attaining the object, a bellows 7 that is extendingly and contractingly deformable in the axial direction is placed in a pump body 1 with setting the axis B of the bellows vertical so as to be driven to perform extending and contracting deformation, and form a liquid chamber 9 inside the bellows 7. A suction port 18 and a discharge port 19 are formed in an inner bottom face 4a of the pump body 1 facing the liquid chamber 9. Liquid is sucked from the suction port 18 into the liquid chamber 9 by extension of the bellows 7, and the liquid in the liquid chamber 9 is discharged from the discharge port 19 by contraction of the bellows 7. The inner bottom face 4a is formed into a conical shape in which the face is downward inclined as moving toward the discharge port 19. Therefore, also liquid containing a sedimenting material such as slurry can be always smoothly discharged toward the discharge port 19 along the downward inclined face of the inner bottom face 4a without collecting on the inner bottom face 4a of the liquid chamber.
摘要:
In a pipe joint made of resin, a cap nut-like pressing ring is screwed to the outer periphery of a pipe receiving port of a joint body, and presses an inner ring from the outer side of a pipe member as a result of screw advancement toward the joint body. The inner peripheral face of an annular pressing portion of the pressing ring is formed into a straight shape. The inner diameter D of the annular pressing portion is set to be 1.0 to 1.1 times, preferably, 1.01 to 1.05 times the outer diameter d of the pipe member, and the length L of the straight inner peripheral face portion in the axial direction is set to be 0.2 to 1.0 times, preferably, 0.2 to 0.8 times the outer diameter d of the pipe member, whereby the rotational resistance in a process of fastening the pressing ring is reduced, so that the loss of fastening torque can be reduced and a predetermined sealing force and a predetermined slipping off resistance can be ensured.
摘要:
A synthetic resin-made fastening-limiting device employed for limiting a fastening force of a fastening member in case of fastening a connection portion between a pipe receiving port of the joint and a pipe by means of the fastening member. In the fastening-limiting device, an appropriate sealing property of the pipe connection portion and a screw amount of the fastening member required in trying to preventing the pipe from slipping off can be surely determined. Furthermore, the operator can recognize easily the appropriate screw amount of the fastening member by a sound and a touch. This fastening-limiting device has a ring portion fittable onto the pipe receiving port of the joint A and a protrusion disposed on the ring portion. On a side of one end in an axial direction of the ring portion, a first abutting portion is formed. On a side of the other end in an axial direction of the ring portion, a second abutting portion is formed. A gap a between the first abutting portion and the second abutting portion is equal to a distance between a reference face and a confronting portion in a state wherein the fastening member exhibits functions such as sealing property and prevention of slipping-off. On either side of the protrusion, recessed portions and are formed, and projections are disposed on a side of the joint.