JPH028196Y2 - - Google Patents
Info
- Publication number
- JPH028196Y2 JPH028196Y2 JP8893784U JP8893784U JPH028196Y2 JP H028196 Y2 JPH028196 Y2 JP H028196Y2 JP 8893784 U JP8893784 U JP 8893784U JP 8893784 U JP8893784 U JP 8893784U JP H028196 Y2 JPH028196 Y2 JP H028196Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- valve
- pressure chamber
- chamber
- compressor
- 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.)
- Expired
Links
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Control Of Fluid Pressure (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、点火プラグの耐久試験を行う点火プ
ラグ試験装置等に利用される圧力チヤンバ内の圧
力を調整する装置に関する。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a device for adjusting the pressure in a pressure chamber used in a spark plug testing device that tests the durability of spark plugs.
従来のこの種の点火プラグ試験装置における圧
力チヤンバ内の圧力調整は、(1)点火プラグ試験装
置が設置される工場に設けられた大型コンプレツ
サから送出される圧縮空気による圧力を減圧弁に
より圧力調整するか、あるいは(2)小型コンプレツ
サからの圧縮空気による圧力を減圧弁により圧力
調整することにより実施していた。
Conventionally, the pressure inside the pressure chamber in this type of spark plug testing equipment is adjusted by: (1) using a pressure reducing valve to adjust the pressure of compressed air sent from a large compressor installed in the factory where the spark plug testing equipment is installed; or (2) by adjusting the pressure of compressed air from a small compressor using a pressure reducing valve.
しかし、上記した圧力調整方式のうち(1)の方式
では省エネルギー化のために工場に設置されてい
る大型コンプレツサの送気圧力が低く設定されて
いるので、点火プラグを耐久試験する際に高圧で
の評価ができず、また休日を含む連続耐久試験が
できないという問題があつた（休日では工場に設
置される大型コンプレツサは停止させられる。）。
However, in method (1) of the above pressure adjustment methods, the air supply pressure of the large compressor installed in the factory is set low in order to save energy, so when testing the durability of spark plugs, high pressure is used. There was a problem in that it was not possible to conduct continuous durability tests including on holidays (large compressors installed in the factory were shut down on holidays).
更に(2)の方式では、単独連続耐久試験はできる
ものの、小型コンプレツサの送気圧力を制御する
圧力スイツチのオン・オフ時における圧力変動幅
ΔPが大きい（約２Kg／cm2位）という問題があつ
た（第１図）。この場合に圧力変動幅を小さくす
るために減圧弁を取り付けると、減圧弁による通
路の圧力降下が生じるために圧力チヤンバ内の圧
力は小型コンプレツサの送気圧力より低くなり、
圧力チヤンバ内の設定圧力を高くすることはでき
ない。 Furthermore, although method (2) allows independent continuous durability testing, there is a problem in that the pressure fluctuation range ΔP is large (approximately 2 kg/ cm2 ) when the pressure switch that controls the air supply pressure of the small compressor is turned on and off. Atsuta (Figure 1). In this case, if a pressure reducing valve is installed to reduce the width of pressure fluctuation, the pressure in the pressure chamber will be lower than the air supply pressure of the small compressor because the pressure in the passage will drop due to the pressure reducing valve.
It is not possible to increase the set pressure in the pressure chamber.
本考案の目的は、圧力チヤンバ内の圧力の変動
を抑制し、且つ圧力チヤンバ内の圧力をコンプレ
ツサの吐出圧より高く設定可能とすることにあ
る。 An object of the present invention is to suppress fluctuations in the pressure within the pressure chamber and to enable the pressure within the pressure chamber to be set higher than the discharge pressure of the compressor.
本考案は、内部空気圧を設定圧力に維持される
圧力チヤンバと、該圧力チヤンバに圧縮空気を送
出するコンプレツサと、該コンプレツサと前記圧
力チヤンバとを連通する通路に直列に配設され、
圧力チヤンバ内の圧力を減圧調整する減圧弁及び
増圧調整する増圧弁と、該減圧弁をバイパスする
通路に設けられる第１のバイパス弁と、前記増圧
弁をバイパスする通路に設けられる第２のバイパ
ス弁とを有し、圧力チヤンバ内の設定圧力がコン
プレツサ吐出圧以下の所定値に比べて低い場合に
は、前記両バイパス弁のうち第２のバイパス弁の
み開弁させ、他方、圧力チヤンバ内の設定圧力が
コンプレツサ吐出圧以下の所定値に比べて高い場
合には、前記両バイパス弁のうち少なくとも第２
のバイパス弁を開弁させることを特徴とする。
The present invention includes a pressure chamber in which the internal air pressure is maintained at a set pressure, a compressor that delivers compressed air to the pressure chamber, and a passage that communicates the compressor with the pressure chamber, which are arranged in series,
A pressure reducing valve that reduces and adjusts the pressure in the pressure chamber, a pressure increasing valve that increases the pressure, a first bypass valve provided in a passage that bypasses the pressure reducing valve, and a second bypass valve provided in a passage that bypasses the pressure increasing valve. If the set pressure in the pressure chamber is lower than a predetermined value below the compressor discharge pressure, only the second bypass valve of the two bypass valves is opened; If the set pressure is higher than a predetermined value below the compressor discharge pressure, at least the second
The bypass valve is opened.
コンプレツサ吐出圧以下の所定値、例えば、減
圧弁が発生しうる圧力の最高設定値に比べて圧力
チヤンバの設定圧力が低いときには、減圧弁が機
能させられ、減圧弁により圧力調整が行われるの
で、圧力チヤンバ内の圧力を変動の少ない安定し
た圧力に維持することができる。一方、コンプレ
ツサ吐出圧以下の所定値、例えば、減圧弁が発生
しうる圧力の最高設定値に比べて圧力チヤンバの
設定圧力が高い場合には、増圧弁が機能させら
れ、増圧弁により増圧が行われるので、圧力チヤ
ンバ内の圧力をコンプレツサの吐出圧より高くす
ることができる。このとき、減圧弁を併用して圧
力変動を抑制するか否かは、状況に応じて任意に
選択可能である。
When the set pressure of the pressure chamber is lower than a predetermined value below the compressor discharge pressure, for example, the maximum set pressure that can be generated by the pressure reducing valve, the pressure reducing valve is activated and the pressure is adjusted by the pressure reducing valve. The pressure within the pressure chamber can be maintained at a stable pressure with little fluctuation. On the other hand, if the set pressure of the pressure chamber is higher than a predetermined value below the compressor discharge pressure, for example, the highest set pressure that can be generated by the pressure reducing valve, the pressure increasing valve is activated and the pressure is increased by the pressure increasing valve. This allows the pressure in the pressure chamber to be higher than the compressor discharge pressure. At this time, whether or not to use a pressure reducing valve in combination to suppress pressure fluctuations can be arbitrarily selected depending on the situation.
本考案の実施例を図面に基づいて説明する。本
考案の一実施例の構成を第２図に示す。同図にお
いて、１は小型コンプレツサであり、該小型コン
プレツサ１と圧力チヤンバ６とを連通する通路２
０には小型コンプレツサ１より送出される圧縮空
気中の水分を除去する除湿装置２、オイルフイル
タ３、圧力チヤンバ６内の圧力調整を行う減圧弁
４、増圧弁５が直列的に設けられている。
Embodiments of the present invention will be described based on the drawings. FIG. 2 shows the configuration of an embodiment of the present invention. In the figure, 1 is a small compressor, and a passage 2 communicating between the small compressor 1 and a pressure chamber 6 is shown.
0 is provided in series with a dehumidifier 2 for removing moisture from the compressed air sent out from the small compressor 1, an oil filter 3, a pressure reducing valve 4 and a pressure increasing valve 5 for adjusting the pressure in the pressure chamber 6. .
圧力チヤンバ６には、保温箱７が一体的に設け
られており、保温箱７によつて覆われた部分の圧
力チヤンバ６の壁面に点火プラグ１１が装着さ
れ、点火プラグ１１は火花ギヤツプが圧力チヤン
バ６内に臨むようにされている。点火プラグ１１
に高電圧を供給するハイテンシヨンコード（図示
せず）は、保温箱７内に配線され、図示しないグ
ロメツトを介して保温箱外に導出され、高圧電源
に接続されている。保温箱内にはヒータ８、撹拌
フアン９が設けられており、ヒータ８で加熱され
た空気がフアン９によつてハイテンシヨンコード
に吹きつけられるようにされている。すなわち、
ハイテンシヨンコードは、高温に曝され続けると
絶縁抵抗が低下するが、本件試験装置ではそれを
試験することができるようにされている。ハイテ
ンシヨンコードに吹きつけられる温風の温度を可
変として各種の条件下での試験を可能としてい
る。 A heat insulation box 7 is integrally provided in the pressure chamber 6, and a spark plug 11 is attached to the wall surface of the pressure chamber 6 in a portion covered by the heat insulation box 7. It is designed to face the inside of chamber 6. spark plug 11
A high tension cord (not shown) for supplying high voltage to the heat insulating box 7 is wired inside the heat insulating box 7, led out of the heat insulating box via a grommet (not shown), and connected to a high voltage power source. A heater 8 and a stirring fan 9 are provided in the heat insulating box, and air heated by the heater 8 is blown onto the high tension cord by the fan 9. That is,
The insulation resistance of high-tension cords decreases when exposed to high temperatures for a long time, and the present test equipment is designed to be able to test this. The temperature of the warm air blown onto the high tension cord can be varied to enable testing under various conditions.
更に１２は圧力チヤンバ内の圧力を表示する圧
力計、１３は圧力チヤンバ内の圧力を検出し、該
圧力が設定圧を超えたとき動作する圧力スイツ
チ、１４は圧力チヤンバ内の圧縮空気を排出する
ための換気用減圧弁、１５は流量計、１６はサイ
レンサーである。 Furthermore, 12 is a pressure gauge that displays the pressure inside the pressure chamber, 13 is a pressure switch that detects the pressure inside the pressure chamber and operates when the pressure exceeds a set pressure, and 14 is a pressure switch that discharges the compressed air inside the pressure chamber. 15 is a flow meter, and 16 is a silencer.
また１７は制御盤であり、該制御盤１７は小型
コンプレツサ１の吐出圧を検出する圧力スイツチ
１８、保温箱７内の温度を検出する温度センサ１
０、圧力チヤンバ６内の圧力を検出する圧力スイ
ツチ１３の各検出出力を取り込み、圧力チヤンバ
６及び保温箱７内の状態に応じて小型コンプレツ
サ１、除湿装置２、ヒータ８に運転あるいは運転
停止させるための制御信号を出力する。更に３
０，３２はそれぞれ減圧弁４、増圧弁５をバイパ
スする通路４０，４２に設けられたバイパス弁で
あり、これらのバイパス弁３０，３２は本実施例
では手動で開閉するようにしているが、制御盤１
７からの制御信号により開閉するようにしてもよ
い。 Reference numeral 17 denotes a control panel, which includes a pressure switch 18 that detects the discharge pressure of the small compressor 1, and a temperature sensor 1 that detects the temperature inside the heat insulation box 7.
0. Takes in each detection output of the pressure switch 13 that detects the pressure inside the pressure chamber 6, and causes the small compressor 1, dehumidifier 2, and heater 8 to operate or stop depending on the conditions inside the pressure chamber 6 and heat insulation box 7. Outputs control signals for 3 more
0 and 32 are bypass valves provided in passages 40 and 42 that bypass the pressure reducing valve 4 and the pressure increasing valve 5, respectively, and these bypass valves 30 and 32 are manually opened and closed in this embodiment, Control panel 1
It may be opened and closed by a control signal from 7.
上記構成において、既述したように圧力チヤン
バ６内の圧力は減圧弁４、増圧弁５により調整さ
れるが、増圧弁５はその作動に伴い圧縮空気を消
費する（大気放出する）ため、圧力チヤンバ６の
圧力調整は極力、減圧弁４のみにより行い、減圧
弁４の最高設定値を超えた場合のみ増圧弁５を使
用して省エネルギー運転を行う。 In the above configuration, as described above, the pressure in the pressure chamber 6 is adjusted by the pressure reducing valve 4 and the pressure increasing valve 5, but the pressure increasing valve 5 consumes compressed air (releases into the atmosphere) as it operates, so the pressure inside the pressure chamber 6 is adjusted by the pressure reducing valve 4 and the pressure increasing valve 5. The pressure in the chamber 6 is adjusted as much as possible using only the pressure reducing valve 4, and only when the maximum set value of the pressure reducing valve 4 is exceeded, the pressure increasing valve 5 is used to perform energy-saving operation.
さて、圧力チヤンバ６内の設定圧力が減圧弁４
が発生しうる圧力の最高設定値に比べて低い場合
にはバイパス弁３０を閉弁状態にし且つバイパス
弁３２を開弁状態にすることにより小型コンプレ
ツサ１より減圧弁４を介して圧力チヤンバ６に圧
縮空気を送り込む。このとき減圧弁４が圧力調整
を行うので、チヤンバ６内の圧力変動を少なくす
ることができる。 Now, the set pressure in the pressure chamber 6 is the pressure reducing valve 4.
If the pressure is lower than the maximum setting value of the pressure that can be generated, the bypass valve 30 is closed and the bypass valve 32 is opened, thereby reducing the pressure from the small compressor 1 to the pressure chamber 6 via the pressure reducing valve 4. Inject compressed air. Since the pressure reducing valve 4 adjusts the pressure at this time, pressure fluctuations within the chamber 6 can be reduced.
また、圧力チヤンバ６内の設定圧力が減圧弁４
が発生しうる最高設定値に比べて高い場合にはバ
イパス弁３０，３２を閉弁状態にし、小型コンプ
レツサ１より減圧弁４、増圧弁５を介して圧力チ
ヤンバ６に圧縮空気を送り込むか、あるいはバイ
パス弁３０を開弁状態にし且つバイパス弁３２を
閉弁状態にすることにより、小型コンプレツサ１
より増圧弁５を介して圧力チヤンバ６に圧縮空気
を送り込むようにする。このとき増圧弁５が空気
圧の増圧を行うので、圧力チヤンバ６内の圧力を
小型コンプレツサ１の吐出圧より高くすることが
できる。 Also, the set pressure in the pressure chamber 6 is set to the pressure reducing valve 4.
If the value is higher than the maximum set value that can occur, the bypass valves 30 and 32 are closed, and compressed air is sent from the small compressor 1 to the pressure chamber 6 via the pressure reducing valve 4 and the pressure increasing valve 5, or By opening the bypass valve 30 and closing the bypass valve 32, the small compressor 1
Compressed air is sent into the pressure chamber 6 via the pressure increase valve 5. At this time, the pressure increase valve 5 increases the air pressure, so that the pressure within the pressure chamber 6 can be made higher than the discharge pressure of the small compressor 1.
一方、点火プラグ１１の点火により発生するオ
ゾンの影響を少くするために圧力チヤンバ６内の
圧縮空気は換気用減圧弁１４、流量計１５、サイ
レンサー１６を介して排出される。そして小型コ
ンプレツサ１の吐出圧及び保温箱７内の温度は圧
力スイツチ１８及び温度センサ１０の検出出力に
基づいて制御盤１７により制御され、小型コンプ
レツサ１の吐出圧力や保温箱７内の温度が異常に
上昇した場合には制御盤１７からの制御信号によ
り装置の運転は停止させられる。 On the other hand, in order to reduce the influence of ozone generated by the ignition of the spark plug 11, the compressed air in the pressure chamber 6 is discharged via a ventilation pressure reducing valve 14, a flow meter 15, and a silencer 16. The discharge pressure of the small compressor 1 and the temperature inside the heat insulation box 7 are controlled by the control panel 17 based on the detection output of the pressure switch 18 and the temperature sensor 10, so that the discharge pressure of the small compressor 1 and the temperature inside the heat insulation box 7 are abnormal. If the temperature rises to above, the operation of the device is stopped by a control signal from the control panel 17.
次に第３図に本考案に係る点火プラグ試験装置
における試験条件設定方式の一例を示す。同図に
おいて横軸は換気量Ｑ（m3／ｈ）を縦軸は圧力Ｐ
（Kg／cm2Ｇ）を示しており、○は小型コンプレツ
サ１と減圧弁４により、△は小型コンプレツサ１
と増圧弁５により、また×は小型コンプレツサ
１、減圧弁４及び増圧弁５により、それぞれ圧力
チヤンバ６内の圧力調整を行う場合を示してい
る。 Next, FIG. 3 shows an example of a test condition setting method in the spark plug testing device according to the present invention. In the figure, the horizontal axis is the ventilation volume Q (m 3 /h) and the vertical axis is the pressure P.
(Kg/cm 2 G), ○ indicates small compressor 1 and pressure reducing valve 4, △ indicates small compressor 1
and the pressure increasing valve 5, and x indicates the case where the pressure in the pressure chamber 6 is adjusted by the small compressor 1, the pressure reducing valve 4, and the pressure increasing valve 5, respectively.
上記した圧力設定方式により圧力チヤンバ６内
の圧力変動△Ｐを実測した結果を第４図に示す。
同図から明らかなように第３図において０≦Ｐ≦
P0である領域ｌでは小型コンプレツサ１と減圧
弁４の組合せによる方式を、またP0＜Ｐ≦10で
且つQ0≦Ｑ≦９である領域ｍでは小型コンプレ
ツサ１と増圧弁５の組合せによる方式を、更に
P0＜Ｐ≦10で且つ０≦Ｑ＜Q0である領域ｎでは
小型コンプレツサ１、減圧弁４及び増圧弁５の組
合せによる方式をそれぞれ採用した場合に圧力変
動を小さく抑制することが判る。 FIG. 4 shows the results of actually measuring the pressure fluctuation ΔP in the pressure chamber 6 using the above-described pressure setting method.
As is clear from the same figure, in Figure 3, 0≦P≦
In region l where P 0 , a combination of small compressor 1 and pressure reducing valve 4 is used, and in region m, where P 0 < P ≦ 10 and Q 0 ≦ Q ≦ 9, a combination of small compressor 1 and pressure increasing valve 5 is used. method, further
It can be seen that in the region n where P 0 <P < 10 and 0 < Q < Q 0 , pressure fluctuations are suppressed to a small level when a combination of the small compressor 1, the pressure reducing valve 4 and the pressure increasing valve 5 is adopted.
尚、第３図において圧力制御方式を切り換える
圧力P0、換気量Q0の値は小型コンプレツサ１、
減圧弁４の仕様により異なる。 In addition, in Fig. 3, the values of pressure P 0 and ventilation volume Q 0 for switching the pressure control method are for small compressor 1,
It varies depending on the specifications of the pressure reducing valve 4.
本考案によればコンプレツサを従来のまま使用
しても圧力チヤンバ内の圧力変動を小さく抑制し
且つ圧力チヤンバ内の圧力をコンプレツサの吐出
圧より高く設定することができる。
According to the present invention, even if the compressor is used as it is conventionally, pressure fluctuations in the pressure chamber can be suppressed to a small level, and the pressure in the pressure chamber can be set higher than the discharge pressure of the compressor.
第１図は小型コンプレツサの圧力制御特性を示
す図、第２図は本考案に係る圧力チヤンバーの圧
力調整装置の一実施例を示す構成図、第３図は第
２図に示した実施例における試験条件設定方式を
示す説明図、第４図は第２図に示した実施例にお
ける圧力チヤンバ内の圧力変動を各種試験条件に
応じて実測した結果を示す図である。
１……小型コンプレツサ、４……減圧弁、５…
…増圧弁、６……圧力チヤンバ、１１……点火プ
ラグ、１７……制御盤、３０，３２……バイパス
弁。
Fig. 1 is a diagram showing the pressure control characteristics of a small compressor, Fig. 2 is a block diagram showing an embodiment of a pressure adjustment device for a pressure chamber according to the present invention, and Fig. 3 is a diagram showing the pressure control characteristics of a small compressor. FIG. 4 is an explanatory diagram showing a method of setting test conditions. FIG. 4 is a diagram showing the results of actually measuring pressure fluctuations in the pressure chamber in the embodiment shown in FIG. 2 according to various test conditions. 1...Small compressor, 4...Reducing valve, 5...
...Pressure booster valve, 6...Pressure chamber, 11...Spark plug, 17...Control panel, 30, 32...Bypass valve.
Claims (1)
バと、該圧力チヤンバに圧縮空気を送出するコン
プレツサと、該コンプレツサと前記圧力チヤンバ
とを連通する通路に直列に配設され、圧力チヤン
バ内の圧力を減圧調整する減圧弁及び増圧調整す
る増圧弁と、該減圧弁をバイパスする通路に設け
られる第１のバイパス弁と、前記増圧弁をバイパ
スする通路に設けられる第２のバイパス弁とを有
し、圧力チヤンバ内の設定圧力がコンプレツサ吐
出圧以下の所定値に比べて低い場合には、前記両
バイパス弁のうち第２のバイパス弁のみ開弁さ
せ、他方、圧力チヤンバ内の設定圧力がコンプレ
ツサ吐出圧以下の所定値に比べて高い場合には、
前記両バイパス弁のうち少なくとも第２のバイパ
ス弁を閉弁させることを特徴とする圧力チヤンバ
の圧力調整装置。 A pressure chamber that maintains internal air pressure at a set pressure, a compressor that delivers compressed air to the pressure chamber, and a passage that communicates the compressor and the pressure chamber are arranged in series to reduce the pressure inside the pressure chamber. A pressure reducing valve for adjusting and a pressure increasing valve for adjusting pressure increasing, a first bypass valve provided in a passage bypassing the pressure reducing valve, and a second bypass valve provided in a passage bypassing the pressure increasing valve, When the set pressure in the pressure chamber is lower than a predetermined value below the compressor discharge pressure, only the second bypass valve of the two bypass valves is opened, and on the other hand, the set pressure in the pressure chamber is lower than the compressor discharge pressure. If it is higher than the prescribed value below,
A pressure regulating device for a pressure chamber, characterized in that at least a second bypass valve of the two bypass valves is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8893784U JPS615447U (en) | 1984-06-15 | 1984-06-15 | Pressure chamber pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8893784U JPS615447U (en) | 1984-06-15 | 1984-06-15 | Pressure chamber pressure regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS615447U JPS615447U (en) | 1986-01-13 |
| JPH028196Y2 true JPH028196Y2 (en) | 1990-02-27 |
Family
ID=30642554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8893784U Granted JPS615447U (en) | 1984-06-15 | 1984-06-15 | Pressure chamber pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS615447U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63161231A (en) * | 1986-12-22 | 1988-07-04 | 旭化成株式会社 | Pillar and beam connection apparatus |
| JP2521924Y2 (en) * | 1990-03-22 | 1997-01-08 | 文化シヤッター株式会社 | Metal balcony support device |
-
1984
- 1984-06-15 JP JP8893784U patent/JPS615447U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS615447U (en) | 1986-01-13 |
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