JPH06215956A - Oil tank - Google Patents
Oil tankInfo
- Publication number
- JPH06215956A JPH06215956A JP5021697A JP2169793A JPH06215956A JP H06215956 A JPH06215956 A JP H06215956A JP 5021697 A JP5021697 A JP 5021697A JP 2169793 A JP2169793 A JP 2169793A JP H06215956 A JPH06215956 A JP H06215956A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- temperature
- oil tank
- pressure
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Casings For Electric Apparatus (AREA)
- Transformer Cooling (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、潤滑や電気的絶縁距
離を小さくする目的で、電子部品などを浸漬した油の温
度を表示可能にする油タンクに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil tank capable of displaying the temperature of oil in which an electronic component or the like is immersed for the purpose of lubrication and shortening the electrical insulation distance.
【０００２】[0002]
【従来の技術】図７は従来の油タンクの斜視図であり、
図において、１は油タンクの蓋、２は油タンク、３は油
タンク２に蓋１を固定するためのねじ、４は密封された
油タンク２内のエアーを出し入れし、内部圧力を一定に
保つエアブリーザ、５は油のレベルを確認するための油
面計、６は油タンク２内の油である。2. Description of the Related Art FIG. 7 is a perspective view of a conventional oil tank.
In the figure, 1 is a lid of an oil tank, 2 is an oil tank, 3 is a screw for fixing the lid 1 to the oil tank 2, and 4 is a valve for letting air in and out of the sealed oil tank 2 to keep the internal pressure constant. An air breather to keep 5 is an oil level gauge for confirming the oil level, and 6 is oil in the oil tank 2.
【０００３】また、７は油面計５を固定する取付ねじ、
１０は油タンク２内に油６を入れる給油口であり、１１
は油６の上部に残った空気、２１は油タンク２内の温度
を測定する温度センサである。Also, 7 is a mounting screw for fixing the oil level gauge 5,
Reference numeral 10 is a filler port for putting the oil 6 in the oil tank 2, and 11
Is air remaining above the oil 6, and 21 is a temperature sensor for measuring the temperature in the oil tank 2.
【０００４】次に動作について説明する。油タンク２内
の油６は、例えば内部に浸漬したトランスなどの温度の
上昇により体積が増大し、この体積の増大や減少によ
り、図８に示すように、油面計５のローＬからハイＨま
での各目盛間を変動する。Next, the operation will be described. The volume of the oil 6 in the oil tank 2 increases due to a rise in temperature of, for example, a transformer immersed in the oil tank 2. Due to the increase or decrease in the volume, as shown in FIG. Vary between each scale up to H.
【０００５】従って、上記のように油６の体積が増大し
た場合には、空気１１が圧縮され、内部圧力が上昇する
ので、エアブリーザ４を介して空気１１は放出され、油
タンク内部の圧力が一定に保たれる。また、このとき、
温度センサ２１によって油タンク２内の油６の温度が測
定される。Therefore, when the volume of the oil 6 is increased as described above, the air 11 is compressed and the internal pressure rises, so that the air 11 is released through the air breather 4 and the pressure inside the oil tank is increased. Is kept constant. Also, at this time,
The temperature of the oil 6 in the oil tank 2 is measured by the temperature sensor 21.
【０００６】[0006]
【発明が解決しようとする課題】従来の油タンクは以上
のように構成されているので、油タンク２内の油温は温
度センサ２１によって測定されているものの、その測定
値は特定部分（一定領域内）の温度であり、油タンク２
内の全領域における平均温度を測定することができず、
一方、その平均温度を得るために多数の温度センサを複
数箇所に設けた場合には、コストが高くなり、また温度
測定作業が繁雑になるなどの問題点があった。Since the conventional oil tank is constructed as described above, the oil temperature in the oil tank 2 is measured by the temperature sensor 21, but the measured value is a specific portion (constant). Temperature in the area), oil tank 2
It is not possible to measure the average temperature in all areas of
On the other hand, when a large number of temperature sensors are provided at a plurality of locations in order to obtain the average temperature, there are problems that the cost becomes high and the temperature measurement work becomes complicated.
【０００７】請求項１の発明は上記のような問題点を解
消するためになされたもので、油タンク内の平均温度を
容易にしかも安価に測定できる油タンクを得ることを目
的とする。The first aspect of the present invention has been made to solve the above problems, and an object thereof is to obtain an oil tank capable of easily and inexpensively measuring the average temperature in the oil tank.
【０００８】請求項２の発明は油量の温度換算値にて油
の平均温度を表示できる油タンクを得ることを目的とす
る。It is an object of the invention of claim 2 to obtain an oil tank capable of displaying the average temperature of oil by a temperature conversion value of the oil amount.
【０００９】請求項３の発明は内部圧力の変化に伴うベ
ローズ継手の伸縮量の温度換算値にて油の平均温度を温
度表示できる油タンクを得ることを目的とする。It is an object of the invention of claim 3 to obtain an oil tank capable of displaying the average temperature of oil as a temperature by a temperature conversion value of the expansion / contraction amount of a bellows joint due to a change in internal pressure.
【００１０】[0010]
【課題を解決するための手段】請求項１の発明に係る油
タンクは、油の温度上昇に伴う圧力変化を温度値に換算
して表示する温度目盛付圧力ゲージを設けたものであ
る。An oil tank according to a first aspect of the present invention is provided with a pressure gauge with a temperature scale for converting a pressure change due to a temperature rise of oil into a temperature value and displaying the temperature value.
【００１１】請求項２の発明に係る油タンクは、油の温
度変化に伴う油量レベルの変化を温度値に換算して表示
する温度目盛板を設けたものである。The oil tank according to the second aspect of the present invention is provided with a temperature scale plate for converting the change of the oil amount level due to the temperature change of the oil into a temperature value and displaying the temperature value.
【００１２】請求項３の発明に係る油タンクは、油の温
度変化に伴う内部圧力の変化によって伸縮するベローズ
継手と、該ベローズ継手の伸縮レベルを温度値に換算し
て表示する温度目盛部材とから構成したものである。An oil tank according to a third aspect of the present invention includes a bellows joint that expands and contracts due to a change in internal pressure due to a change in oil temperature, and a temperature scale member that displays the expansion and contraction level of the bellows joint as a temperature value. It is composed of.
【００１３】[0013]
【作用】請求項１の発明における油タンクは、油の温度
変化による体積の増減を、タンク容量と油およびタンク
の体積膨張率から計算し、その増減量値に換算し、温度
目盛として表示し、直ちに読み取れるようにする。In the oil tank of the first aspect of the present invention, the volume increase / decrease due to the temperature change of the oil is calculated from the tank capacity and the volume expansion coefficient of the oil and the tank, converted into the increase / decrease value, and displayed as a temperature scale. , Read immediately.
【００１４】請求項２の発明における油タンクは、油量
レベルを温度換算値にて、温度目盛上に表示し、油温を
直ちに読み取れるようにする。In the oil tank according to the second aspect of the invention, the oil amount level is displayed as a temperature conversion value on the temperature scale so that the oil temperature can be read immediately.
【００１５】請求項３の発明における油タンクは、油の
温度変化に伴う内部圧力の変化によって伸縮するベロー
ズ継手の伸縮量を、予め計算した温度値に換算して、温
度目盛部材上の目盛にて温度表示可能にする。In the oil tank according to the third aspect of the invention, the expansion / contraction amount of the bellows joint that expands / contracts due to the change in internal pressure due to the change in oil temperature is converted into a temperature value calculated in advance, and is scaled on the temperature scale member. Temperature display.
【００１６】[0016]
実施例１．以下、請求項１の発明の一実施例を図につい
て説明する。図１において、１は油タンクの蓋、２は油
タンク、３は蓋１と油タンク２とを固定するためのね
じ、５はタンク２内の油量を測定する油面計である。Example 1. An embodiment of the invention of claim 1 will be described below with reference to the drawings. In FIG. 1, 1 is an oil tank lid, 2 is an oil tank, 3 is a screw for fixing the lid 1 and the oil tank 2, and 5 is an oil level gauge for measuring the amount of oil in the tank 2.
【００１７】また、６はタンク内の油、７は油面計５を
取り付ける取付ねじ、８は油６および油タンク２の熱膨
張による体積の増減を温度目盛として読み取る、温度目
盛付圧力ゲージ、９は油タンク２内の圧力を、温度目盛
付圧力ゲージ８に伝えるパイプである。Further, 6 is oil in the tank, 7 is a mounting screw for mounting the oil level gauge 5, 8 is a pressure gauge with a temperature scale for reading increase / decrease in volume due to thermal expansion of the oil 6 and the oil tank 2 as a temperature scale, Reference numeral 9 is a pipe for transmitting the pressure in the oil tank 2 to the pressure gauge 8 with a temperature scale.
【００１８】さらに、１０は油タンク２内に油６を入れ
る給油口、１１は油６の上部に残った空気である。ま
た、図２は温度目盛付圧力ゲージ８の詳細図である。Further, 10 is an oil supply port for putting the oil 6 in the oil tank 2, and 11 is air remaining above the oil 6. 2 is a detailed view of the pressure gauge 8 with a temperature scale.
【００１９】次に動作について説明する。油タンク２内
の油６は温度の上昇により体積を増大し、油面計５のロ
ーおよびハイの目盛間を変動する。また、この時、油６
の体積が増大することにより、油タンク２内上部の空気
１１が圧縮され、内部圧力が上昇する。Next, the operation will be described. The oil 6 in the oil tank 2 increases in volume due to a rise in temperature, and fluctuates between the low and high scales of the oil level gauge 5. At this time, oil 6
Due to the increase in the volume, the air 11 in the upper part of the oil tank 2 is compressed and the internal pressure rises.
【００２０】このため、この上昇した圧力がパイプ９を
介して温度目盛付圧力ゲージ８に導かれ、この圧力表示
指針を、圧力および温度の目盛上に振らせる。ここで、
油６および油タンク２の体積膨張による圧力上昇量より
換算した温度目盛により、油６の平均温度が測定できる
こととなる。Therefore, the increased pressure is guided to the pressure gauge 8 with a temperature scale through the pipe 9, and the pressure indicating pointer is swung on the pressure and temperature scales. here,
The average temperature of the oil 6 can be measured by the temperature scale converted from the pressure increase amount due to the volume expansion of the oil 6 and the oil tank 2.
【００２１】このように、この実施例１の油温測定装置
によれば、油タンク２内の油温を油の熱膨張にもとづい
て直ちに読み取ることが可能になり、油６の平均温度を
簡単に測定でき、しかもかかる効果を少ない部品点数
で、しかもローコストに得ることができる。As described above, according to the oil temperature measuring apparatus of the first embodiment, the oil temperature in the oil tank 2 can be immediately read based on the thermal expansion of the oil, and the average temperature of the oil 6 can be easily calculated. Moreover, it is possible to obtain such effects with a small number of parts and at low cost.
【００２２】実施例２．なお、上記実施例では油タンク
２を気密構造として、油６の体積増加により空気部が圧
縮され、その圧力上昇から温度を読み取るものを示した
が、内部圧力をエアブリーザにて一定に保って、直接油
面変動を読み取ることによっても、油６の平均温度を測
定できる。Example 2. In the above embodiment, the oil tank 2 has an airtight structure and the air portion is compressed by the increase in the volume of the oil 6 and the temperature is read from the increase in the pressure. However, the internal pressure is kept constant by the air breather, The average temperature of the oil 6 can also be measured by directly reading the oil level fluctuation.
【００２３】図３はかかる実施例２の斜視図であり、図
において、１は油タンクの蓋、２は油タンク、３は蓋１
と油タンク２を固定するためのねじ、４は密封された油
タンク２内の空気を出し入れし、内部圧力を一定に保つ
エアブリーザ、５は油レベルを確認するための油面計、
６は油タンク２内の油である。FIG. 3 is a perspective view of the second embodiment, in which 1 is an oil tank lid, 2 is an oil tank, and 3 is a lid 1.
And a screw for fixing the oil tank 2, 4 is an air breather for keeping air inside the sealed oil tank 2 in and out, and keeping the internal pressure constant, 5 is an oil level gauge for checking the oil level,
6 is the oil in the oil tank 2.
【００２４】また、７は油面計５を図４に示すように取
り付ける取付ねじ、１０は油タンク２内に油６を入れる
給油口、１１は油６の上部に残った空気、１２は温度を
測定するための温度目盛板、１３は温度目盛板１２を固
定する取付ねじである。Further, 7 is a mounting screw for mounting the oil level gauge 5 as shown in FIG. 4, 10 is an oil supply port for inserting the oil 6 into the oil tank 2, 11 is air left above the oil 6, and 12 is temperature. Is a temperature scale plate for measuring, and 13 is a mounting screw for fixing the temperature scale plate 12.
【００２５】次に動作について説明する。油タンク２内
の油６は温度上昇により体積を増大し、油面計５のロー
からハイまでの目盛間を変動する。この時、油６の体積
が増大することにより、空気１１が圧縮され、内部圧力
が上昇するので、エアブリーザ４を介して、空気１１は
油タンク２外へ放出され、油タンク２内部の圧力を一定
に保っている。Next, the operation will be described. The volume of the oil 6 in the oil tank 2 increases as the temperature rises, and the oil 6 fluctuates between the low and high scales of the oil level gauge 5. At this time, as the volume of the oil 6 increases, the air 11 is compressed and the internal pressure rises. Therefore, the air 11 is discharged to the outside of the oil tank 2 via the air breather 4, and the pressure inside the oil tank 2 is reduced. It keeps constant.
【００２６】ここで温度変化による油６の体積の増減
を、タンク容量と油および油タンク２の体積膨張率とか
ら温度に換算した油６の平均温度として温度目盛板１２
上にて測定できる。Here, the temperature scale plate 12 is used as the average temperature of the oil 6 which is calculated by converting the increase / decrease in the volume of the oil 6 due to the temperature change into the temperature from the tank capacity and the volume expansion coefficient of the oil and the oil tank 2.
Can be measured above.
【００２７】このようにこの実施例の油温測定装置によ
れば、実施例１と同様の効果を奏すると共に、温度目盛
付圧力ゲージ８という特殊な目盛付ゲージを使用しなく
てもよく、簡単な目盛板で代用でき、さらに安価になる
油温測定装置を得ることができる。As described above, according to the oil temperature measuring apparatus of this embodiment, the same effect as that of the first embodiment is obtained, and it is not necessary to use the special pressure gauge 8 with the temperature scale, which is simple. It is possible to obtain an oil temperature measuring device that can be replaced with a simple scale plate and is less expensive.
【００２８】実施例３．図５は実施例１の温度目盛付圧
力ゲージ８をベローズ継手に置き換えたものを示し、図
において、１４は蓋１上に立設された温度目盛部材とし
ての温度目盛付ガイド棒、１５は蓋１上に立設された目
盛なしのガイド棒、１６はこれらの各ガイド棒１４，１
５に沿って昇降するガイド板、１７は油タンク２内の油
６の体積膨張による油タンク２内の体積増加を吸収する
図６に示すようなベローズ継手で、これの内部が油タン
ク２内に通孔２０を通じて連通している。Example 3. FIG. 5 shows a pressure gauge 8 with a temperature scale of Example 1 replaced with a bellows joint. In the figure, 14 is a guide rod with a temperature scale as a temperature scale member erected on the lid 1, and 15 is a lid. 1 is a guide rod that is erected on the scale 1 and has no scale, and 16 is each of these guide rods 14, 1.
5 is a guide plate which moves up and down along with 5, and 17 is a bellows joint as shown in FIG. 6 which absorbs the volume increase in the oil tank 2 due to the volume expansion of the oil 6 in the oil tank 2, the inside of which is inside the oil tank 2. Through the through hole 20.
【００２９】また、１８はベローズ継手１７を油タンク
２の蓋１に取り付ける取付板、１９は取付板１８と油タ
ンク２の蓋１との間を気密に保つＯリング、２１は取付
板１８と油タンク２の蓋１とを固定するねじである。Further, 18 is a mounting plate for mounting the bellows joint 17 to the lid 1 of the oil tank 2, 19 is an O-ring for keeping the space between the mounting plate 18 and the lid 1 of the oil tank 2 airtight, and 21 is a mounting plate 18. It is a screw that fixes the lid 1 of the oil tank 2.
【００３０】次に動作について説明する。油タンク２内
の油６は温度の上昇により体積を増大するが、油タンク
２内が気密のため、体積の増加は空気１１を圧縮し、圧
力の上昇となって、ベローズ継手１７に伝わる。Next, the operation will be described. The volume of the oil 6 in the oil tank 2 increases due to the rise in temperature, but since the inside of the oil tank 2 is airtight, the increase in volume compresses the air 11 and increases the pressure, which is transmitted to the bellows joint 17.
【００３１】このため、ベローズ継手１７のばね定数に
よる抵抗力と上記圧力が比例しながら、ベローズ継手１
７は伸び縮みする。このため、この伸縮量に応じて昇降
するガイド板１６が指標する温度値に換算した温度目盛
付ガイド棒１４上の目盛にて、油６の平均温度が測定で
きることになる。Therefore, while the resistance force due to the spring constant of the bellows joint 17 and the above pressure are proportional, the bellows joint 1
7 expands and contracts. Therefore, the average temperature of the oil 6 can be measured by the scale on the guide rod 14 with the temperature scale converted into the temperature value indexed by the guide plate 16 that moves up and down according to the amount of expansion and contraction.
【００３２】このように、実施例３の油温測定装置によ
れば、油タンク２内の油温を油６の熱膨張より直接読み
取ることができ、また、油６の体積とベローズ継手１７
の内部体積の比率を大きく取ることにより、温度の微妙
の変化に対しても拡大でき、より精度のよい油温測定を
実施できる。As described above, according to the oil temperature measuring apparatus of the third embodiment, the oil temperature in the oil tank 2 can be directly read from the thermal expansion of the oil 6, and the volume of the oil 6 and the bellows joint 17 can be read.
By taking a large ratio of the internal volume of the oil, it is possible to expand to a slight change in the temperature, and more accurate oil temperature measurement can be performed.
【００３３】[0033]
【発明の効果】以上のように、請求項１の発明によれ
ば、油の温度上昇に伴う圧力変化を温度値に換算して表
示する温度目盛付圧力ゲージを設置するように構成した
ので、圧力ゲージに温度目盛を並置するという簡単な構
成で、油タンク内の油の温度をこの油の熱膨張より直接
読み取ることができ、また、油の平均温度として測定で
きるため、油タンク内の平均温度を測定する上では、部
品点数が少なく、しかもコストの安いものが得られる効
果がある。As described above, according to the first aspect of the invention, the pressure gauge with a temperature scale for converting the pressure change due to the temperature rise of the oil into the temperature value and displaying the temperature value is installed. With a simple configuration in which a temperature gauge is juxtaposed to the pressure gauge, the temperature of the oil in the oil tank can be read directly from the thermal expansion of this oil, and it can be measured as the average temperature of the oil. In measuring the temperature, the number of parts is small and the cost is low.
【００３４】また、請求項２の発明によれば、油の温度
変化に伴う油量レベルの変化を温度値に換算して表示す
る温度目盛板を設けるように構成したので、極めて簡単
な構成にて、油量レベルから直ちにタンク内油の温度を
正確に測定できるものが得られる効果がある。Further, according to the invention of claim 2, since the temperature scale plate for converting the change of the oil amount level due to the temperature change of the oil into the temperature value and displaying the temperature value plate is provided, the structure is extremely simple. Thus, there is an effect that the temperature of the oil in the tank can be immediately measured accurately from the oil level.
【００３５】さらに、請求項３の発明によれば、油の温
度変化に伴う内部圧力の変化によって伸縮するベローズ
継手と、該ベローズ継手の伸縮レベルを温度値に換算し
て表示する温度目盛部材とを設置するように構成したの
で、内圧変動によるベローズ継手の伸縮量から、内部の
油の温度変化を高感度にしかも確実に表示できるものが
得られる効果がある。Further, according to the invention of claim 3, a bellows joint that expands and contracts due to a change in internal pressure due to a temperature change of oil, and a temperature scale member that displays the expansion and contraction level of the bellows joint by converting it into a temperature value. Since it is configured to be installed, there is an effect that a change in the temperature of the internal oil can be displayed with high sensitivity and certainty from the amount of expansion and contraction of the bellows joint due to internal pressure fluctuation.
【図１】請求項１の発明の実施例による油タンクを示す
斜視図である。FIG. 1 is a perspective view showing an oil tank according to an embodiment of the present invention.
【図２】図１における温度目盛付圧力ゲージを示す正面
図である。FIG. 2 is a front view showing a pressure gauge with a temperature scale in FIG.
【図３】請求項２の発明の実施例による油タンクを示す
斜視図である。FIG. 3 is a perspective view showing an oil tank according to an embodiment of the present invention.
【図４】図３における温度目盛板を示す正面図である。FIG. 4 is a front view showing a temperature scale plate in FIG.
【図５】請求項３の発明の実施例による油タンクを示す
斜視図である。FIG. 5 is a perspective view showing an oil tank according to an embodiment of the present invention.
【図６】図５におけるベローズ付近の構成を示す断面図
である。FIG. 6 is a cross-sectional view showing the configuration near the bellows in FIG.
【図７】従来の油タンクを示す斜視図である。FIG. 7 is a perspective view showing a conventional oil tank.
【図８】図７における油面計を示す正面図である。8 is a front view showing the oil level gauge in FIG. 7. FIG.
２ 油タンク ６ 油 ８ 温度目盛付圧力ゲージ １２ 温度目盛板 １４ 温度目盛付ガイド棒（温度目盛部材） １７ ベローズ継手 2 Oil tank 6 Oil 8 Pressure gauge with temperature scale 12 Temperature scale plate 14 Guide rod with temperature scale (temperature scale member) 17 Bellows joint
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 // Ｇ０１Ｋ 5/42 9107−2Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Internal reference number FI technical display location // G01K 5/42 9107-2F
Claims (3)
おいて、上記油の温度上昇に伴う圧力変化を温度値に換
算して表示する温度目盛付圧力ゲージを備えたことを特
徴とする油タンク。1. An oil tank, in which electric parts and the like are immersed in oil, provided with a pressure gauge with a temperature scale for converting and displaying a pressure change due to temperature rise of the oil as a temperature value. tank.
おいて、上記油の温度変化に伴う油量レベルの変化を温
度値に換算して表示する温度目盛板を備えたことを特徴
とする油タンク。2. An oil tank in which electric parts and the like are immersed in oil, further comprising a temperature scale plate for converting the change of the oil amount level due to the temperature change of the oil into a temperature value and displaying the temperature value. Oil tank.
おいて、上記油の温度変化に伴う内部圧力の変化によっ
て伸縮するベローズ継手と、該ベローズ継手の伸縮レベ
ルを温度値に換算して表示する温度目盛部材とを備えた
ことを特徴とする油タンク。3. An oil tank in which electric parts and the like are immersed in oil, and a bellows joint that expands and contracts due to a change in internal pressure due to a temperature change of the oil, and an expansion and contraction level of the bellows joint is converted into a temperature value and displayed. An oil tank, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5021697A JPH06215956A (en) | 1993-01-18 | 1993-01-18 | Oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5021697A JPH06215956A (en) | 1993-01-18 | 1993-01-18 | Oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06215956A true JPH06215956A (en) | 1994-08-05 |
Family
ID=12062268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5021697A Pending JPH06215956A (en) | 1993-01-18 | 1993-01-18 | Oil tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06215956A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2372571A (en) * | 2001-02-23 | 2002-08-28 | Dimitrios Myzithras | Pressure gauge with means for adjusting for temperature |
| US7347089B1 (en) | 2005-08-30 | 2008-03-25 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Gas volume contents within a container, smart volume instrument |
| JP4493061B2 (en) * | 1999-04-22 | 2010-06-30 | 油研工業株式会社 | Hydraulic pump with built-in electric motor |
| KR101388188B1 (en) * | 2012-09-04 | 2014-04-23 | 엘아이지넥스원 주식회사 | Apparatus and system for regulating internal state of launching tube |
| CN112201462A (en) * | 2020-08-31 | 2021-01-08 | 国家电网有限公司 | Special tool for multipoint vacuum pumping of super-huge transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226019B2 (en) * | 1981-12-02 | 1990-06-07 | Kinji Tateno | |
| WO1991008156A1 (en) * | 1989-12-06 | 1991-06-13 | Vsr Engineering Gmbh Fördertechnik | Retarding-disc conveyor |
| JPH05116729A (en) * | 1991-10-29 | 1993-05-14 | Katsuo Mizuno | Pipe conveyor |
-
1993
- 1993-01-18 JP JP5021697A patent/JPH06215956A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0226019B2 (en) * | 1981-12-02 | 1990-06-07 | Kinji Tateno | |
| WO1991008156A1 (en) * | 1989-12-06 | 1991-06-13 | Vsr Engineering Gmbh Fördertechnik | Retarding-disc conveyor |
| JPH05116729A (en) * | 1991-10-29 | 1993-05-14 | Katsuo Mizuno | Pipe conveyor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4493061B2 (en) * | 1999-04-22 | 2010-06-30 | 油研工業株式会社 | Hydraulic pump with built-in electric motor |
| GB2372571A (en) * | 2001-02-23 | 2002-08-28 | Dimitrios Myzithras | Pressure gauge with means for adjusting for temperature |
| US7347089B1 (en) | 2005-08-30 | 2008-03-25 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Gas volume contents within a container, smart volume instrument |
| KR101388188B1 (en) * | 2012-09-04 | 2014-04-23 | 엘아이지넥스원 주식회사 | Apparatus and system for regulating internal state of launching tube |
| CN112201462A (en) * | 2020-08-31 | 2021-01-08 | 国家电网有限公司 | Special tool for multipoint vacuum pumping of super-huge transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Goodwin | Apparatus for Determination of Pressure-Density-Temper-ature Relations and Specific Heats of Hydrogen to 350 Atmospheres at Temperatures Above 14 K | |
| US4630478A (en) | Liquid volume sensor system | |
| US4390956A (en) | Apparatus for correcting measured gas flow | |
| Jones | Instrument Technology: Measurement of pressure, level, flow and temperature | |
| US3082621A (en) | Extensometer | |
| JPH11501120A (en) | Pressure transmitter with remote seal diaphragm and its compensation circuit | |
| GB2041523A (en) | Weighing apparatus | |
| US5895861A (en) | Combination pressure/temperature gauge employing two bourdon tubes | |
| US4618268A (en) | Method and apparatus for sensing average temperature | |
| US3880008A (en) | Arrangement for occasionally determining the pressure in a hydraulic or pneumatic system | |
| Brombacher | Mercury barometers and manometers | |
| Gillum | Industrial pressure, level, and density measurement | |
| JPH06215956A (en) | Oil tank | |
| US2758474A (en) | Apparatus for measurement of levels of materials in tanks | |
| US3023622A (en) | Manometers | |
| US6553822B2 (en) | Liquid volume measurement | |
| CN115060414B (en) | Device and method for providing high-precision pressure standard | |
| US3465588A (en) | Floatless electrical fluid level gauge | |
| JPH0635933U (en) | Measuring instruments for temperature and pressure | |
| JP2019168323A (en) | Pressure measurement device | |
| US2909927A (en) | Fluid pressure gauge | |
| CN216668903U (en) | Resistance type liquid level metering device | |
| RU2006802C1 (en) | Pressure measuring device | |
| EP0077329A1 (en) | Pressure transducer | |
| RU70776U1 (en) | DEVICE FOR MEASURING THE PRESSURE DISTRIBUTION ON THE FOOT SUPPORT SURFACE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Effective date: 20040305 Free format text: JAPANESE INTERMEDIATE CODE: A621 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060622 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20061030 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A521 | Written amendment |
Effective date: 20070130 Free format text: JAPANESE INTERMEDIATE CODE: A523 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20080128 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20080428 |
|
| A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20080502 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080725 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Effective date: 20090316 Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090415 |
|
| R150 | Certificate of patent (=grant) or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 3 Free format text: PAYMENT UNTIL: 20120424 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120424 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130424 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130424 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 5 Free format text: PAYMENT UNTIL: 20140424 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |