JPS5852540A - Pressure gauge - Google Patents
Pressure gaugeInfo
- Publication number
- JPS5852540A JPS5852540A JP15054381A JP15054381A JPS5852540A JP S5852540 A JPS5852540 A JP S5852540A JP 15054381 A JP15054381 A JP 15054381A JP 15054381 A JP15054381 A JP 15054381A JP S5852540 A JPS5852540 A JP S5852540A
- Authority
- JP
- Japan
- Prior art keywords
- receiving plate
- pressure receiving
- strain
- cylindrical body
- pressure
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
- G01L23/08—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically
- G01L23/18—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid operated electrically by resistance strain gauges
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は内燃機関のシリンダ内の圧力々どを計測するの
に適した圧力計の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a pressure gauge suitable for measuring pressures within a cylinder of an internal combustion engine.
内燃機関のシリンダ内は高温で、圧力計の取付位置が限
られている。また内燃機関のシリンダ内の圧力を計測す
る圧力計には高周波数特性が要求されている。これに適
した従来の圧力計を第１．２図により説明すると、（、
）が下端外周部に取付用ネ：）（ａ□）を設けた円筒状
本体、（ｂ）が同円筒状本体（ａ）の下端開口部に固定
した受圧板、（Ｃ）が同円筒状本体（ａ）内に収納して
下端部を同受圧板（ｂ）の内面に固定するとともに上端
部を同円筒状本体（ａ）の上部に固定した起歪筒、（ｄ
）が同起歪筒（Ｃ）の内面に貼布した歪ゲージ、（ｄｌ
）が同歪ゲージ（ｄ）のり一ド線、（ｅ）が上記円筒状
本体（ａ）と上記起歪筒（Ｃ）との間に形成した冷却水
通路、（ｆ）（ｇ）が上記円筒状本体（ａ）の上部に設
けた冷却水の入口及び出［１で、円筒状本体（ａ）を取
付用ネジ（ａｌ）により被計測体に取付けたときに、受
圧板（ｂ）に働く圧力を起歪筒（Ｃ）に伝えて、歪ゲー
ジ（ｄ）により計測するように、壕だ冷却水を冷却水入
口（ｆ）から冷却水通路（ｅ）を経て冷却水出口（ｇ）
へ導いて、受圧板（ｂ）の焼損を防止するとともに出力
の温度ドリフトを少なくするようになっている。The temperature inside the cylinder of an internal combustion engine is high, and there are restrictions on where pressure gauges can be installed. Moreover, high frequency characteristics are required for pressure gauges that measure the pressure inside the cylinders of internal combustion engines. A conventional pressure gauge suitable for this purpose is explained using Fig. 1.2.
) is a cylindrical body with a mounting hole provided on the outer periphery of the lower end, (b) is a pressure receiving plate fixed to the lower end opening of the cylindrical body (a), and (C) is the same cylindrical body. a strain-generating cylinder (d) housed in the main body (a) and having its lower end fixed to the inner surface of the pressure receiving plate (b) and its upper end fixed to the upper part of the cylindrical main body (a);
) is attached to the inner surface of the same strain tube (C), (dl
) is the same strain gauge (d) as the glue line, (e) is the cooling water passage formed between the cylindrical body (a) and the strain tube (C), (f) and (g) are the When the cylindrical body (a) is attached to the object to be measured using the mounting screws (al), the cooling water inlet and outlet provided at the top of the cylindrical body (a) are connected to the pressure receiving plate (b). The working pressure is transmitted to the strain tube (C), and the cooling water is transferred from the cooling water inlet (f) through the cooling water passage (e) to the cooling water outlet (g) as measured by the strain gauge (d).
This is to prevent the pressure receiving plate (b) from burning out and to reduce the temperature drift of the output.
前記圧力計では、円筒状本体（ａ）を取付用ネジ（ａｌ
）により被計測体に取付けたときに、円筒状本体←）の
締付けひずみが受圧板（ｔ））を介し起歪筒（Ｃ）に伝
えられて、歪ゲージ（ｄ）により計測される。壕だ取付
後に歪ゲー：）（ｄ）をゼロセットしても円筒状本体（
ａ）の温度変形に伴うひずみが受圧板（ｂ）を介し起歪
筒（Ｃ）に伝えられ、これが歪ゲージ（ｄ）により計測
されて、計測誤差が生じる。まだ冷却水入口（ｆ）から
の新たな冷却水が受圧板（ｂ）にゆきわたりにくく、こ
の部分が充分に冷却されなくて、出力の温度ドリフトが
大きいという問題があった。In the pressure gauge, the cylindrical body (a) is attached to the mounting screw (al
), when the clamping strain of the cylindrical body ←) is transmitted to the strain cylinder (C) via the pressure receiving plate (t)), and measured by the strain gauge (d). After installing the groove, the cylindrical body (
Strain due to the temperature deformation in a) is transmitted to the strain tube (C) via the pressure receiving plate (b), and this is measured by the strain gauge (d), resulting in a measurement error. There is still a problem in that new cooling water from the cooling water inlet (f) does not easily reach the pressure receiving plate (b), and this portion is not sufficiently cooled, resulting in a large temperature drift in the output.
本発明は前記の問題点に対処するもので、下端外周部に
取付用ネジを設けた円筒状本体と、同円筒状本体の下端
開口部に固定した受圧板と、同円筒状本体内に収納して
下端部を同受圧板の内面に固定するとともに上端部を同
円筒状本体側の部材に取付けた起歪筒と、同起歪筒の内
面に貼布した歪ゲージと、同起歪筒の周シに形成した冷
却液通路とよりなる圧力計において、前記受圧板にリン
グ状スリットを設けて同受圧板を内外の部分に分割する
とともにこれらの部分を可撓性部材によシ連結し、前記
起歪筒の下端部を同内側の受圧板に固定したことを特徴
とする圧力計に係シ、その目的とする処は、円筒状本体
から受圧板を介した起歪筒へのひずみの伝達を防止でき
る改良された圧力計を供する点にある。The present invention addresses the above-mentioned problems, and includes a cylindrical body with mounting screws provided on the outer periphery of the lower end, a pressure receiving plate fixed to the opening at the lower end of the cylindrical body, and a pressure receiving plate housed within the cylindrical body. A strain tube whose lower end is fixed to the inner surface of the pressure receiving plate and whose upper end is attached to the member on the cylindrical body side, a strain gauge affixed to the inner surface of the strain tube, and a strain tube whose lower end is fixed to the inner surface of the pressure receiving plate. In the pressure gauge, the pressure receiving plate is provided with a ring-shaped slit to divide the pressure receiving plate into inner and outer parts, and these parts are connected by a flexible member. , relates to a pressure gauge characterized in that the lower end of the strain cylinder is fixed to a pressure receiving plate on the same inner side, the purpose of which is to transfer strain from the cylindrical body to the strain cylinder via the pressure receiving plate. The object of the present invention is to provide an improved pressure gauge that can prevent the transmission of
本発明は前記のように下端外周部に取付用ネジを設けた
円筒状本体と、同円筒状本体の下端開口部に固定した受
圧板と、同円筒状本体内に収納して下端部を同受圧板の
内面に固定するとともに上端部を同円筒状本体側の部材
に取付けた起歪筒と、同起歪筒の内面に貼布した歪ゲー
ミンと、同起歪筒の周りに形成した冷却液通路とよりな
る圧力計において、前記受圧板にリング状スリットを設
けて同受圧板を内外の部分に分割するとともにこれらの
部分を可撓性部材により連結し、前記起歪筒の下端部を
同内側の受圧板に固定したので、円筒状本体を取付用ネ
ジによシ被言１測体に取付けたときの円筒状本体の締付
けひずみ、及び取付後の円筒状本体の温度変形に伴うひ
ずみが可撓性部材の弾性変形によシ吸収されて、内側の
受圧板に伝えられず、円筒状本体から受圧板を介した起
歪筒へのひずみの伝達が防止される。As described above, the present invention includes a cylindrical body provided with mounting screws on the outer periphery of the lower end, a pressure receiving plate fixed to the opening at the lower end of the cylindrical body, and a pressure receiving plate that is housed in the cylindrical body and has the same lower end. A distortion tube fixed to the inner surface of the pressure receiving plate and whose upper end was attached to the member on the cylindrical body side, a distortion gamer pasted on the inner surface of the distortion tube, and a cooling device formed around the distortion tube. In a pressure gauge consisting of a liquid passage, a ring-shaped slit is provided in the pressure receiving plate to divide the pressure receiving plate into inner and outer parts, and these parts are connected by a flexible member, and the lower end of the strain cylinder is Since it is fixed to the pressure receiving plate on the same inner side, the tightening strain of the cylindrical body when the cylindrical body is attached to the target body with the mounting screw, and the strain due to temperature deformation of the cylindrical body after installation. The strain is absorbed by the elastic deformation of the flexible member and is not transmitted to the inner pressure receiving plate, thereby preventing strain from being transmitted from the cylindrical body to the strain cylinder via the pressure receiving plate.
また本発明は下端部に取付用ネジを設けた円筒状本体と
、同円筒状本体の下端開口部に固定した受圧板と、同円
筒状本体内に収納して）端部を同受圧板の内面に固定す
るとともに上端部を同円筒状本体側の部材に取付けた起
歪筒と、同起歪筒の内面に貼布した歪ケージと、同起歪
筒の周りに形成した冷却液通路とよりなる圧力計におい
て、前記受圧板にリング状スリットを設けて同受圧板を
内外の部分に分割するとともにこれらの部分を可撓性部
材により連結し、前記起歪筒の下端部を同内側の受圧板
に固定するとともに前記起歪筒の上部から同起歪筒と前
記円筒状本体との間を受圧板の方向に延びた内筒の下端
部を同外側の受圧板に固定したことを特徴とする圧力計
に係シ、前記と同様の作用効果を有する。しかも本発明
では、円筒状本体と起歪筒との間に内筒を設けておシ、
冷却液入口からの冷却液を円筒状本体と内筒との間の冷
却液通路を経て外側の受圧板の内方へ導き、次いで内筒
壁を貫通した冷却液通路を経て内側の受圧板の内方へ導
き、次いで起歪筒と内筒との間の冷却液通路を経て冷却
液出口へ導くことが可能で、新たな冷却液を受圧板にゆ
きわたらせることができ、この部分を充分に冷却できて
、出力の温度ビリフトを少なくできる効果がある。Further, the present invention includes a cylindrical body provided with a mounting screw at the lower end, a pressure receiving plate fixed to the lower end opening of the cylindrical body, and an end portion of the pressure receiving plate that is housed in the cylindrical body. A strain tube fixed to the inner surface and having its upper end attached to a member on the cylindrical body side, a strain cage affixed to the inner surface of the strain tube, and a coolant passage formed around the strain tube. In the pressure gauge, a ring-shaped slit is provided in the pressure receiving plate to divide the pressure receiving plate into inner and outer parts, and these parts are connected by a flexible member, and the lower end of the strain cylinder is connected to the inner part of the pressure receiving plate. The lower end of the inner cylinder is fixed to the pressure receiving plate and extends from the upper part of the strain cylinder toward the pressure receiving plate between the strain cylinder and the cylindrical body, and is fixed to the outer pressure receiving plate. Regarding the pressure gauge, it has the same effect as described above. Moreover, in the present invention, an inner cylinder is provided between the cylindrical main body and the strain-generating cylinder.
The coolant from the coolant inlet is guided to the inside of the outer pressure receiving plate through the coolant passage between the cylindrical body and the inner cylinder, and then to the inside of the inner pressure receiving plate through the coolant passage passing through the inner cylinder wall. It is possible to guide the coolant inward and then to the coolant outlet through the coolant passage between the strain cylinder and the inner cylinder, allowing new coolant to spread to the pressure plate, making this part sufficiently This has the effect of reducing the temperature bias of the output.
次に本発明の圧力計を第３．４図に示す一実施例により
説明すると、（１）が下端外周部に取付用ネジ（１ａ）
を設けた円筒状本体、（２）が同円筒状本体（１）の下
端開口部に固定した受圧板で、同受圧板（２）はリング
状スリットにより内外の部分に分割されるとともにこれ
らの部分が可撓性部材（２ａ）により連結されている。Next, the pressure gauge of the present invention will be explained with reference to an embodiment shown in Fig. 3.4.
(2) is a pressure receiving plate fixed to the lower end opening of the cylindrical body (1), and the pressure receiving plate (2) is divided into inner and outer parts by a ring-shaped slit, and these The parts are connected by a flexible member (2a).
また（３）が同円筒状本体（１）内に収納して下端部を
同内側の受圧板（２）に固定するとともに上端部を同円
筒状本体（１）の上部に固定しだ起歪筒、（４）が同起
歪筒（３）の内面に貼布した歪ゲージ、（４ａ）が同歪
ゲージ（４）のリード線で、増幅器（図示せず）に接続
されている。また（５）が上記円筒状本体（１）と上記
起歪筒（３）との間に形成した冷却水通路、（６）（力
が上記円筒状本体（１）の上部に設けた冷却水の入口及
び出口で、円筒状本体（１）を取付用ネ） （ｌａ）に
より被計測体に取付けたときに、受圧板（２）に働く圧
力を起歪筒（３）に伝えて、歪ゲージ（４）により計測
するように、壕だ冷却水を冷却水入口（６）から冷却水
通路（５）を絆で冷却水出口（カへ導いて、受圧板（力
（２）の焼損を防止するとともに出力の温度ドリフトを
少なくするようになっている。In addition, (3) is housed in the same cylindrical body (1) and its lower end is fixed to the pressure receiving plate (2) inside the same, and its upper end is fixed to the upper part of the same cylindrical body (1). The tube, (4) is a strain gauge attached to the inner surface of the strain tube (3), and (4a) is a lead wire of the strain gauge (4), which is connected to an amplifier (not shown). (5) is a cooling water passage formed between the cylindrical body (1) and the strain tube (3); When the cylindrical body (1) is attached to the object to be measured using the mounting screw (la), the pressure acting on the pressure receiving plate (2) is transmitted to the strain tube (3) at the inlet and outlet of the tube, causing strain. As measured by the gauge (4), the trench cooling water is guided from the cooling water inlet (6) through the cooling water passage (5) to the cooling water outlet (F) with ties to prevent burnout of the pressure plate (force (2)). It is designed to prevent this and reduce temperature drift in the output.
前記圧力計では、受圧板（２）にリング状スリットを設
けて同受圧板（２）を内外の部分に分割するとともにこ
れらの部分を可撓性部材（２ａ）により連結し、起歪筒
（３）の下端部を同内側の受圧板（２）に固定したので
、円筒状本体（１）を取付用ネジ（１ａ）により被計測
体に取付けたときの円筒状本体（１）の締付けひずみ、
及び取付後の円筒状本体（１）の温度変形に伴うひずみ
が可撓性部材（２ａ）の弾性変形により吸収されて、内
側の受圧板（２）に伝えられず、円筒状本体（１）から
受圧板（２）を介しだ起歪筒（３）へのひずみの伝達が
防止される。In the pressure gauge, a ring-shaped slit is provided in the pressure receiving plate (2) to divide the pressure receiving plate (2) into inner and outer parts, and these parts are connected by a flexible member (2a). 3) Since the lower end is fixed to the pressure receiving plate (2) on the same inner side, the tightening strain of the cylindrical body (1) when the cylindrical body (1) is attached to the object to be measured using the mounting screw (1a) can be reduced. ,
The strain caused by the temperature deformation of the cylindrical body (1) after installation is absorbed by the elastic deformation of the flexible member (2a) and is not transmitted to the inner pressure receiving plate (2), causing the cylindrical body (1) to Transmission of strain from the pressure receiving plate (2) to the strain tube (3) is prevented.
次に本発明の圧力計を第５．６図に示す他の実施例によ
り説明すると、（１）が下端外周部に取付用ネジ（１ａ
）を設けた円筒状外筒、（２）が同円筒状本体（１）の
下端開口部に固定した受圧板で、同受圧板（２）はリン
グ状スリットによシ内外の部分に分割されるとともにこ
れらの部分が可撓性部材（２ａ）により連結されている
。また（３）が同円筒状本体（１）内に収（８）
納して下端部を同内側の受圧板（２）に固定した起歪筒
、（３ａ）が同起歪筒（３）の上部、（３ｂ）が同上部
（あ）に設けた短筒部で、同短筒部（３ｂ）は上記円筒
状本体（１）の上端部に設けた環状溝（１ｂ）に摺動自
在に嵌挿されている。また（８）が同環状溝（１ｂ）か
ら冷却水を漏洩させないようにするシール部材、（３ｃ
）が上記起歪筒（３）と上記円筒状本体（１）との間に
収納して下端部を外側の受圧板（２）に、上端部を起歪
筒（３）の上部（３ｂ）に、それぞれ固定した内筒（反
力筒）、（３ｃ １）が同内筒（３ｃ）の下端近傍に設
けた冷却水通路、（６）（力が冷却水の入口及び出口で
、本実施例でも受圧板（２）リング状スリットを設けて
同受圧板（２）を内外の部分に分割するとともにこれら
の部分を可撓性部材（２ａ）により連結し、起歪筒（３
）の下端部を同内側の受圧板（２）に固定しており、前
記第３．４図の圧力計と同様の作用効果を有する。しか
も本実施例では、円筒状本体（１）と起歪筒（３）との
間に内筒（３Ｃ）を設けており、冷却液入口（６）から
の冷却液を円筒状本体（１）と内筒（３Ｃ）との間の冷
却液通路を経て外側の受圧板（２）の内方へ導き、次い
で内筒（３Ｃ）壁を貫通した冷却液通路（３ｃ１）を経
て内側の受圧板（２）の内方へ導き、次いで起歪筒（３
）と内筒（３ｃ）との間の冷却液通路を経て冷却液出口
（７）へ導くことが可能で、新たな冷却液を受圧板（２
）にゆきわたらせることができ、この部分を充分に冷却
できて、出力の温度ドリフトを少なくできる効果がある
。Next, the pressure gauge of the present invention will be explained with reference to another embodiment shown in Fig. 5.6.
), and (2) is a pressure receiving plate fixed to the lower end opening of the cylindrical main body (1), and the pressure receiving plate (2) is divided into inner and outer parts by a ring-shaped slit. At the same time, these parts are connected by a flexible member (2a). In addition, (3) is a strain tube (8) housed in the same cylindrical body (1) and its lower end is fixed to the pressure receiving plate (2) on the inside, and (3a) is the strain tube (3). The upper part (3b) is a short cylindrical part provided in the upper part (A), and the short cylindrical part (3b) is slidable in the annular groove (1b) provided in the upper end of the cylindrical body (1). is inserted into. Further, (8) is a sealing member (3c) that prevents cooling water from leaking from the annular groove (1b).
) is housed between the strain cylinder (3) and the cylindrical main body (1), and its lower end is connected to the outer pressure receiving plate (2), and its upper end is connected to the upper part (3b) of the strain cylinder (3). , a fixed inner cylinder (reaction force cylinder), (3c 1) a cooling water passage provided near the lower end of the inner cylinder (3c), and (6) (the force is applied at the inlet and outlet of the cooling water. In this example, a ring-shaped slit is provided in the pressure receiving plate (2) to divide the pressure receiving plate (2) into inner and outer parts, and these parts are connected by a flexible member (2a).
) is fixed to the pressure receiving plate (2) on the same inner side, and has the same effect as the pressure gauge shown in Fig. 3.4. Moreover, in this embodiment, an inner cylinder (3C) is provided between the cylindrical body (1) and the strain tube (3), and the coolant from the coolant inlet (6) is transferred to the cylindrical body (1). The coolant passes through the coolant passage between the inner cylinder (3C) and the outer pressure receiving plate (2), and then passes through the coolant passage (3c1) passing through the wall of the inner cylinder (3C) to the inner pressure receiving plate. (2), and then the strain tube (3).
) and the inner cylinder (3c) to the coolant outlet (7), and new coolant can be guided to the pressure receiving plate (2
), this part can be sufficiently cooled and the temperature drift of the output can be reduced.
なお円筒状本体（１）の温度変形に伴うひずみはすでに
述べたように可撓性部材（２ａ）の弾性変形により吸収
されて、内側の受圧板（２）に伝わらないが、起歪筒（
３）及び内筒（３ｃ）の熱による伸縮は、短筒部（３ｂ
）が環状溝（１ｂ）内を摺動することにより吸収されて
、内側の受圧板（２）に伝わらず、本実施例はこの点で
も出力の温度ドリフトを少なくできる。As already mentioned, the strain caused by temperature deformation of the cylindrical body (1) is absorbed by the elastic deformation of the flexible member (2a) and is not transmitted to the inner pressure receiving plate (2).
3) and the inner cylinder (3c) due to heat, the short cylinder part (3b
) is absorbed by sliding in the annular groove (1b) and is not transmitted to the inner pressure receiving plate (2), and this embodiment can also reduce the temperature drift of the output.
以上本発明を実施例について説明したが、勿論本発明は
このような実施例にだけ局限されるものではなく、本発
明の精神を逸脱し々い範囲内で種々の設計の改変を施し
うるものである。Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to these embodiments, and that various design modifications may be made without departing from the spirit of the present invention. It is.
第１図は従来の圧力計を示す縦断側面図、第２図は第１
図矢視Ｉ［−Ｉｔ線に沿う横断平面図、第３図は本発明
に係る圧力計の一実施例を示す縦断側面図、第４図は第
３図矢祝■−１ｖ線に沿う横断平面図、第５図は本発明
に係る圧力計の他の実施例を示す縦断側面図、第６図は
第５図矢視ＶＩ−ＶＩ線に清う横断平面図である。
（１）・・・円筒状本体、（２）・・・受圧板、（２ａ
）・・・可撓性部材、（３）・・・起歪筒、（３ａ）・
・・上部、（３ｂ）・・・内筒、（４）・・・歪ゲージ
、（５）・・・冷却液通路。
復代理人 弁理士量水重文
外２名
第２図Figure 1 is a vertical side view of a conventional pressure gauge, and Figure 2 is a side view of a conventional pressure gauge.
Figure 3 is a longitudinal cross-sectional side view showing an embodiment of the pressure gauge according to the present invention; Figure 4 is a cross-sectional view taken along line I [-1v in Figure 3]. 5 is a vertical sectional side view showing another embodiment of the pressure gauge according to the present invention, and FIG. 6 is a lateral plan view taken along the line VI--VI in FIG. 5. (1)...Cylindrical body, (2)...Pressure plate, (2a
)... Flexible member, (3)... Strain tube, (3a)...
... Upper part, (3b) ... Inner cylinder, (4) ... Strain gauge, (5) ... Coolant passage. Sub-agents: Patent Attorneys, 2 persons outside of the law
Claims (1)
円筒状本体の下端開口部に固定した受圧板と、同円筒状
本体内に収納して下端部を同受圧板の内面に固定すると
ともに上端部を同円筒状本体側の部材に取付けだ起歪筒
と、同起歪筒の内面に貼布した歪ゲージと、同起歪筒の
周りに形成した冷却液通路とよシなる圧力計において、
前記受圧板にリング状スリットを設けて同受圧板を内外
の部分に分割するとともにこれらの部分を可撓性部材に
より連結し、前記起歪筒の下端部を同内側の受圧板に固
定したことを特徴とする圧力計。 ２）下端部に取付用ネジを設けた円筒状本体と、同円筒
状本体の下端開口部に固定した受圧板と、同円筒状本体
内に収納して下端部を同受圧板の内面に固定するととも
に上端部を同円筒状本体側の部材に取付けた起歪筒と、
同起歪筒の内面に貼布した歪ケージと、同起歪筒の周り
に形成した冷却液通路とよりなる圧力計において、前記
受圧板にリング状スリットを設けて同受圧板を内外の部
分に分割するとともにこれらの部分を可撓性部材により
連結し、前記起歪筒の下端部を同内側の受圧板に固定す
るとともに前記起歪筒の上部から同起歪筒と前記円筒状
本体との間を受圧板の方向に延びた内筒の下端部を同外
側の受圧板に固定したことを特徴とする圧力計。[Scope of Claims] 1) A cylindrical body with mounting screws provided on the outer periphery of the lower end, a pressure receiving plate fixed to the opening at the lower end of the cylindrical body, and a pressure receiving plate that is housed within the cylindrical body and whose lower end A strain tube fixed to the inner surface of the pressure receiving plate and having its upper end attached to a member on the cylindrical body side, a strain gauge affixed to the inner surface of the strain tube, and a strain gauge formed around the strain tube. In pressure gauges similar to coolant passages,
A ring-shaped slit is provided in the pressure-receiving plate to divide the pressure-receiving plate into inner and outer parts, and these parts are connected by a flexible member, and the lower end of the strain-generating tube is fixed to the inner pressure-receiving plate. A pressure gauge featuring: 2) A cylindrical body with a mounting screw provided at the lower end, a pressure receiving plate fixed to the lower end opening of the cylindrical body, and a pressure receiving plate housed within the cylindrical body and the lower end fixed to the inner surface of the pressure receiving plate. and a strain-generating cylinder whose upper end is attached to the member on the side of the cylindrical main body,
In a pressure gauge consisting of a strain cage affixed to the inner surface of a strain tube and a coolant passage formed around the strain tube, a ring-shaped slit is provided in the pressure receiving plate, and the pressure receiving plate is connected to the inner and outer parts. The lower end of the strain tube is fixed to the pressure receiving plate on the inner side, and the strain tube and the cylindrical body are connected from the top of the strain tube. A pressure gauge characterized in that the lower end of an inner cylinder extending in the direction of the pressure receiving plate between the inner cylinder and the inner cylinder is fixed to the outer pressure receiving plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15054381A JPS5852540A (en) | 1981-09-25 | 1981-09-25 | Pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15054381A JPS5852540A (en) | 1981-09-25 | 1981-09-25 | Pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5852540A true JPS5852540A (en) | 1983-03-28 |
Family
ID=15499162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15054381A Pending JPS5852540A (en) | 1981-09-25 | 1981-09-25 | Pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5852540A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005018938A1 (en) * | 2005-04-22 | 2006-11-02 | Siemens Ag | Pressure sensor, for hot media used in internal combustion engine of motor vehicle, has measuring component in high thermal region of flexible component, and conductive strips for connecting measuring component to electronic evaluating unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49984B1 (en) * | 1968-10-02 | 1974-01-10 | ||
| JPS493673A (en) * | 1972-04-21 | 1974-01-12 | ||
| JPS5329780A (en) * | 1976-09-01 | 1978-03-20 | Makoto Matsuoka | Pencil type high temperature and pressure indicator |
| JPS5459185A (en) * | 1977-10-19 | 1979-05-12 | Ishikawajima Harima Heavy Ind | Marine diesel engine pressure detector and heat removing heat pipe |
-
1981
- 1981-09-25 JP JP15054381A patent/JPS5852540A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49984B1 (en) * | 1968-10-02 | 1974-01-10 | ||
| JPS493673A (en) * | 1972-04-21 | 1974-01-12 | ||
| JPS5329780A (en) * | 1976-09-01 | 1978-03-20 | Makoto Matsuoka | Pencil type high temperature and pressure indicator |
| JPS5459185A (en) * | 1977-10-19 | 1979-05-12 | Ishikawajima Harima Heavy Ind | Marine diesel engine pressure detector and heat removing heat pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005018938A1 (en) * | 2005-04-22 | 2006-11-02 | Siemens Ag | Pressure sensor, for hot media used in internal combustion engine of motor vehicle, has measuring component in high thermal region of flexible component, and conductive strips for connecting measuring component to electronic evaluating unit |
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