JPH0110462Y2 - - Google Patents
Info
- Publication number
- JPH0110462Y2 JPH0110462Y2 JP1986064118U JP6411886U JPH0110462Y2 JP H0110462 Y2 JPH0110462 Y2 JP H0110462Y2 JP 1986064118 U JP1986064118 U JP 1986064118U JP 6411886 U JP6411886 U JP 6411886U JP H0110462 Y2 JPH0110462 Y2 JP H0110462Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- compressor
- level
- oil supply
- throttle valve
- 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
- 239000003921 oil Substances 0.000 claims description 158
- 238000001514 detection method Methods 0.000 claims description 8
- 239000010687 lubricating oil Substances 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000010725 compressor oil Substances 0.000 claims 1
- 230000005856 abnormality Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は圧縮機、特に油冷式圧縮機への潤滑油
の給油制御装置に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a lubricating oil supply control device to a compressor, particularly an oil-fed compressor.
油冷式圧縮機においては、圧縮機の圧縮空気中
の油を分離する油分離器を備えている。この油分
離器内に貯溜した油は圧縮機への潤滑油として再
度圧縮機に供給される。この潤滑油は油分離器に
よつて十分に空気と分離されず、圧縮空気中に粒
化し、ラインに放出されて消費され給油不足が生
じる。このため、油分離器内の油のレベルを定期
的に点検し、補充する必要がある。従来、この補
給は油分離器に設けた油面レベル計の指示値を点
検し、この指示値にしたがつて、人手によつて潤
滑油を油分離器内に補給していた。このため、操
作者にとつては面倒な作業であり、給油を忘れる
ことがあつた。
An oil-cooled compressor is equipped with an oil separator that separates oil from the compressed air of the compressor. The oil stored in this oil separator is supplied to the compressor again as lubricating oil for the compressor. This lubricating oil is not sufficiently separated from the air by the oil separator, becomes particles in the compressed air, is released into the line, and is consumed, resulting in a lack of oil supply. Therefore, it is necessary to periodically check and replenish the oil level in the oil separator. Conventionally, lubricating oil has been refilled into the oil separator by checking the indicated value of an oil level gauge provided in the oil separator and manually replenishing the lubricating oil into the oil separator according to the indicated value. This is a troublesome task for the operator, who sometimes forgets to refuel.
一方、油分離器の潤滑油のレベルを検知して、
油冷式圧縮機への給油量を制御するものとして、
例えば実開昭53−125308号公報に記載されたもの
がある。 Meanwhile, the level of lubricating oil in the oil separator is detected,
To control the amount of oil supplied to the oil-fed compressor,
For example, there is one described in Japanese Utility Model Application Publication No. 53-125308.
この従来の給油制御は、圧縮機の入側を真空に
近づけ、大気圧との差により補充用の油を圧縮機
に送り込むものであり、このため補充用タンクか
らの油は吸込絞り弁の下流側に供給されている。
そして、圧縮機の入側を真空にするため、油供給
時には吸気絞り弁は閉じられるようになつてい
る。ところで、吸込絞り弁を閉じた状態で油供給
を行う場合、圧縮機入側の真空度が急激に上昇
し、必要以上の油が一度に圧縮機に吸込まれるこ
とになる。しかし、圧縮機に油が吸込まれてから
実際に油分離器内にその油が入り油レベルセンサ
がレベル上昇を検知するまでには、油の圧縮機内
での滞在時間、配管系での送給時間、油分離器に
おける油レベルセンサの応答時間等の遅れがあ
る。このため、実際の制御の応答は悪くなり、油
分離器内での油レベルの変動が大きくなると共
に、全体の制御系自体が不安定な動作となり易
い。更に、油補給期間中は、吸込絞り弁を強制的
に閉じるので、その間における圧力一定制御が中
断することとなり、需要先へ供給する圧縮空気の
圧力が大きく変動する。また、油補給期間中にお
いて、多量の油が圧縮機に供給されるので、圧縮
機の運転効率が低下する。
In this conventional oil supply control, the inlet side of the compressor is brought close to vacuum, and replenishment oil is sent into the compressor based on the difference in pressure from atmospheric pressure. Therefore, the oil from the replenishment tank is downstream of the suction throttle valve. Supplied on the side.
In order to create a vacuum on the inlet side of the compressor, the intake throttle valve is closed when oil is supplied. By the way, when oil is supplied with the suction throttle valve closed, the degree of vacuum on the inlet side of the compressor increases rapidly, and more oil than necessary is sucked into the compressor at once. However, from the time the oil is sucked into the compressor until the oil actually enters the oil separator and the oil level sensor detects a rise in the level, the amount of time the oil spends in the compressor, the amount of time the oil is fed through the piping system, etc. There is a delay in time, response time of the oil level sensor in the oil separator, etc. As a result, the actual control response deteriorates, the oil level within the oil separator increases, and the entire control system itself tends to operate unstable. Furthermore, since the suction throttle valve is forcibly closed during the oil replenishment period, the pressure constant control during that period is interrupted, and the pressure of the compressed air supplied to the demand site fluctuates greatly. Furthermore, since a large amount of oil is supplied to the compressor during the oil replenishment period, the operating efficiency of the compressor is reduced.
本考案の目的は、上述の問題に鑑み、油分離器
内の油レベル変動の少ない安定した給油制御を実
現すると共に、その給油制御によつて圧縮空気の
圧力変動や運転効率の低下が生じることを防止す
ることのできる油冷式圧縮機の給油制御装置を提
供することである。 In view of the above-mentioned problems, the purpose of the present invention is to realize stable oil supply control with less fluctuation in the oil level in the oil separator, and to prevent the oil supply control from causing compressed air pressure fluctuations and reductions in operating efficiency. An object of the present invention is to provide an oil supply control device for an oil-cooled compressor that can prevent such problems.
本考案は、油補給用の油ノズルは吸込絞り弁の
上流側に配設し、油ノズルを介して供給する油の
油量を調節可能な油供給手段は油タンクと油ノズ
ルとを連絡する導管の途中に配設すると共に、油
レベルセンサからの検出信号が油レベル低下を指
示する期間であつて、吸込絞り弁が開の期間にお
いて、第１の一定時間だけ油供給手段に油供給を
指示すると共に、この一定時間終了後、第２の一
定時間油供給の停止指示する制御部を設けたこと
を特徴とする。
In the present invention, an oil nozzle for oil replenishment is arranged upstream of the suction throttle valve, and an oil supply means that can adjust the amount of oil supplied through the oil nozzle communicates between the oil tank and the oil nozzle. The oil supply means is provided in the middle of the conduit and supplies oil to the oil supply means for a first fixed period of time during which the detection signal from the oil level sensor indicates a decrease in the oil level and the suction throttle valve is open. The present invention is characterized in that a control section is provided that gives an instruction to stop the oil supply for a second fixed period of time after the fixed period of time has ended.
油ノズルからの給油は、吸込絞り弁の上流側に
対して行なわれ、しかも圧縮機を油供給手段とは
せず、油供給手段を油タンクと油ノズルとを連絡
する導管途中に設けたことにより、真空状態での
強力な油の吸込みは生じなくなる。したがつて、
油供給は比較的おだやかなものとなり、配管系路
やセンサの応答遅れなどがあつたとしても安定に
油レベル制御ができる。更に、制御部は、圧力制
御を実行する吸込絞り弁に対して油補給のために
何等の影響も与えないので、油補給が圧縮空気の
圧力変動を生じさせるという問題は生じない。制
御部は、油レベル低下により、吸込絞り弁が開の
期間において、オンオフ制御による油供給を実行
する。すなわち、第１の一定時間油供給を指示す
る開信号を油供給手段に出力し、その後、第２の
一定時間油供給の停止を指示する閉信号を油供給
手段に出力する。この制御が油レベルが所定レベ
ルに達するまで繰り返されることは言うまでもな
い。
Oil is supplied from the oil nozzle to the upstream side of the suction throttle valve, and the compressor is not used as the oil supply means, but the oil supply means is provided in the middle of the conduit connecting the oil tank and the oil nozzle. This prevents strong oil suction under vacuum conditions. Therefore,
The oil supply is relatively gentle, and even if there is a delay in the response of the piping system or sensor, the oil level can be controlled stably. Furthermore, since the control section does not have any effect on the suction throttle valve that performs pressure control due to oil replenishment, there is no problem that oil replenishment causes pressure fluctuations in the compressed air. The control unit executes oil supply through on/off control during a period in which the suction throttle valve is open due to a drop in the oil level. That is, an open signal instructing oil supply for a first fixed period of time is outputted to the oil supply means, and then a close signal instructing to stop oil supply for a second fixed period of time is outputted to the oil supply means. Needless to say, this control is repeated until the oil level reaches a predetermined level.
以下本考案の実施例を図面を参照して説明す
る。
Embodiments of the present invention will be described below with reference to the drawings.
第１図は本考案の給油制御装置の一例を備えた
圧縮機の系統を示すもので、図において、１は圧
縮機で、この圧縮機１はその吸込管２から空気を
吸込む。吸込まれた空気は吸込管２に設けた吸込
絞り弁３を通り、圧縮機１内で油分離器４からの
油と一緒に圧縮されて、吐出管５を通つて油分離
器４に吐出される。油分離器４は圧縮空気中の油
をフイルタエレメント６によつて分離して、圧縮
空気を吐出管７によつてラインに供給し、分離さ
れた油８を貯溜する。この貯溜された油は油配管
９およびこれに設けたクーラ１０を通つて圧縮機
１に再び供給される。圧縮機１の吸込管２に設け
た吸込絞り弁３はシリンダ１１によつて操作され
る。このシリンダ１１への操作流体としては吐出
管７からの圧縮空気が用いられており、その流入
量は電磁弁１２ａ，１２ｂによつて調節される。
この電磁弁１２ａ，１２ｂの操作は圧力検出器１
３からの圧力信号を取り入れて演算処理する容量
制御回路１４によつて行われる。圧縮機１の吸込
絞り弁３部の吸込側には油注入ノズル１５が挿入
されている。この油注入ノズル１５は電磁弁１６
を通して補給用の油を貯えた補給タンク１７に連
通している。油分離器４には上側配管１８および
下側配管１９により貯溜槽２０が連結して設けら
れている。この油分離器４および貯溜槽２０には
油８とこの油８中に含まれた水２１とが分離した
状態になつている。この水は貯溜槽２０の底部に
設けた排水管２２およびこれに設けた弁２３によ
つて排出される。貯溜槽２０の上部には油分離器
４中の油８のレベルを検出する油レベルセンサ２
４が設けられている。この油レベルセンサ２４の
詳細な構成については第２図を用いて後述する。
この油レベルセンサ２４は油面レベルの設定値に
対してON−OFF信号をレベル検出回路２５に出
力する。レベル検出回路２５は油レベルセンサ２
４の信号にもとづいて油レベル低下信号Ａを制御
回路２６に出力する。制御回路２６はレベル検出
回路２５からの油レベル低下信号Ａおよび容量制
御回路１４からの吸込絞り弁３の開閉動作信号Ｂ
を取り込んで、演算処理を実行し、電磁弁１６
開、閉信号Ｃを電磁弁１６に加えて電磁弁１６を
開閉動させ、また補給タンク１７の油不足を表示
する油補充信号Ｄを表示ランプ２７に出力し、さ
らに、圧縮機の異常を知らせる異常信号Ｅをブザ
ー２８に出力する。 FIG. 1 shows a system of a compressor equipped with an example of the oil supply control device of the present invention. In the figure, 1 is a compressor, and this compressor 1 sucks air through its suction pipe 2. The sucked air passes through a suction throttle valve 3 provided in a suction pipe 2, is compressed together with oil from an oil separator 4 in a compressor 1, and is discharged to an oil separator 4 through a discharge pipe 5. Ru. The oil separator 4 separates oil from compressed air using a filter element 6, supplies the compressed air to a line via a discharge pipe 7, and stores the separated oil 8. This stored oil is again supplied to the compressor 1 through the oil pipe 9 and the cooler 10 provided therein. A suction throttle valve 3 provided in a suction pipe 2 of the compressor 1 is operated by a cylinder 11 . Compressed air from the discharge pipe 7 is used as the operating fluid for the cylinder 11, and the amount of air flowing into the cylinder 11 is regulated by electromagnetic valves 12a and 12b.
The operation of these solenoid valves 12a and 12b is controlled by the pressure detector 1.
This is performed by the capacity control circuit 14 which takes in the pressure signal from 3 and processes it. An oil injection nozzle 15 is inserted into the suction side of the suction throttle valve 3 of the compressor 1. This oil injection nozzle 15 is connected to a solenoid valve 16
It communicates with a replenishment tank 17 that stores oil for replenishment through the tank. A storage tank 20 is connected to the oil separator 4 by an upper pipe 18 and a lower pipe 19. In this oil separator 4 and storage tank 20, oil 8 and water 21 contained in this oil 8 are in a separated state. This water is discharged through a drain pipe 22 provided at the bottom of the storage tank 20 and a valve 23 provided therein. At the upper part of the storage tank 20, there is an oil level sensor 2 that detects the level of oil 8 in the oil separator 4.
4 is provided. The detailed structure of this oil level sensor 24 will be described later using FIG. 2.
The oil level sensor 24 outputs an ON-OFF signal to the level detection circuit 25 in response to the set value of the oil level. The level detection circuit 25 is the oil level sensor 2
Based on the signal No. 4, an oil level reduction signal A is output to the control circuit 26. The control circuit 26 receives an oil level drop signal A from the level detection circuit 25 and an opening/closing operation signal B for the suction throttle valve 3 from the capacity control circuit 14.
is taken in, arithmetic processing is performed, and the solenoid valve 16
Open and close signals C are applied to the solenoid valve 16 to open and close the solenoid valve 16, and an oil replenishment signal D indicating oil shortage in the replenishment tank 17 is output to the display lamp 27, and furthermore, it notifies the compressor of an abnormality. An abnormality signal E is output to the buzzer 28.
第２図は本発明の制御装置に用いられる油レベ
ルセンサ２４の一例の詳細な構成を示すもので、
この図において第１図と同符号のものは同一部分
である。油レベルセンサ２４は油面の上下動に追
従する浮子２４ａ、この浮子２４ａを案内する案
内部材２４ｂ、浮子２４ａに設けたマグネツト２
４ｃ、このマグネツト２４ｃの磁力によつて開閉
するリードリレー２４ｄ、案内部材２４ｂを固定
するナツト２４ｅおよびリード線２４ｆによつて
構成されている。 FIG. 2 shows a detailed configuration of an example of the oil level sensor 24 used in the control device of the present invention.
In this figure, the same reference numerals as in FIG. 1 are the same parts. The oil level sensor 24 includes a float 24a that follows the vertical movement of the oil level, a guide member 24b that guides the float 24a, and a magnet 2 provided on the float 24a.
4c, a reed relay 24d that opens and closes by the magnetic force of the magnet 24c, a nut 24e that fixes the guide member 24b, and a lead wire 24f.
第３図は本考案の制御装置を構成する制御部２
６の一例の構成を示すもので、この図において第
１図と同符号のものは同一部分である。この制御
部２６はこの例ではマイクロコンピユータにより
構成されており、レベル検出回路２５からの油レ
ベル低下信号Ａおよび容量制御回路１４からの吸
込絞り弁３の開閉動作信号Ｂを取り込むデイジタ
ル入力回路２６ａ、取り込んだ信号を予め記憶し
た処理手順に従つて演算処理する中央演算処理装
置２６ｂ、処理した結果を外部に出力するデイジ
タル出力回路２６ｃ、中央演算処理装置２６ｂの
処理手順を記憶するROM２６ｄ、計算結果など
を一時的に記憶するRAM２６ｅを備えている。
デイジタル出力回路２６ｃの各出力信号Ｃ，Ｄ，
Ｅは出力駆動回路２９を通つてそれぞれ電磁弁１
６、表示ランプ２７、ブザー２８に出力される。 FIG. 3 shows a control section 2 constituting the control device of the present invention.
6 shows the configuration of an example of the device shown in FIG. 6, and in this figure, the same parts as those in FIG. In this example, the control section 26 is composed of a microcomputer, and includes a digital input circuit 26a that receives the oil level reduction signal A from the level detection circuit 25 and the opening/closing operation signal B of the suction throttle valve 3 from the capacity control circuit 14; A central processing unit 26b that processes the captured signal according to a pre-stored processing procedure, a digital output circuit 26c that outputs the processed result to the outside, a ROM 26d that stores the processing procedure of the central processing unit 26b, calculation results, etc. It is equipped with a RAM 26e for temporarily storing.
Each output signal C, D, of the digital output circuit 26c
E is connected to the solenoid valve 1 through the output drive circuit 29.
6. Output to display lamp 27 and buzzer 28.
次に上述した本発明の給油制御装置の一例の動
作を第４図〜第７図に示すタイムチヤートを用い
て説明する。 Next, the operation of an example of the oil supply control device of the present invention described above will be explained using time charts shown in FIGS. 4 to 7.
油給制御の１つの制御としては、第４図に示す
ように油レベルセンサ２４からの出力が油レベル
低下を指示したならば、制御部２６は電磁弁１６
に開信号ＣをT1時間出力して電磁弁１６を開状
態にする。これにより、補給タンク１７内の油は
油注入ノズル１５を通して圧縮機１に供給され
る。次のこの電磁弁１６の開時間T1の終了後、
T2時間給油を停止して油分離器４内の油面変動
を安定にする。その後、油レベルセンサ２４から
の出力を取込み判定して、油面が低いようであれ
ば、再度上述と同様な制御を繰り返す。これによ
り、必要最小限の補給油量を供給することができ
る。 As one type of oil supply control, when the output from the oil level sensor 24 instructs a decrease in the oil level as shown in FIG.
The open signal C is output for T 1 hour to open the solenoid valve 16. Thereby, the oil in the supply tank 17 is supplied to the compressor 1 through the oil injection nozzle 15. After the next opening time T1 of this solenoid valve 16 ends,
T Stop oil supply for 2 hours to stabilize oil level fluctuations in oil separator 4. Thereafter, the output from the oil level sensor 24 is taken in and determined, and if the oil level is low, the same control as described above is repeated again. This makes it possible to supply the minimum necessary amount of replenishment oil.
他の給油制御としては、第５図に示すように、
油レベルセンサ２４の出力が油面低下を指示して
いる状態において、吸込絞り弁３の開閉動作信号
Ｂを判定して、吸込絞り弁３が開状態になつてい
る間、電磁弁１６を例えばt1，t2時間開状態に
し、この全給油時間T1（＝t1＋t2）になつたなら
ば、給油を停止し、油分離器４内の油面変動が安
定した時間T3後に、再度油レベルセンサ２４の
出力を判定して、油面が低いようであれば、再度
上述と同様な給油動作を繰り返す。これによれ
ば、吸気動作に協働して油を有効に供給すること
ができる。 Other refueling controls include, as shown in Figure 5,
In a state where the output of the oil level sensor 24 indicates a decrease in the oil level, the opening/closing operation signal B of the suction throttle valve 3 is determined, and while the suction throttle valve 3 is in the open state, the solenoid valve 16 is activated, for example. It is kept open for t 1 and t 2 hours, and when the total lubrication time T 1 (= t 1 + t 2 ) has been reached, lubrication is stopped, and after time T 3 when the oil level fluctuations in the oil separator 4 have stabilized. The output of the oil level sensor 24 is determined again, and if the oil level is low, the same oiling operation as described above is repeated again. According to this, oil can be effectively supplied in cooperation with the intake operation.
上述の給油動作において、第６図に示すように
油レベルセンサ２４からの出力が油レベル低下を
継続して指示しており、電磁弁１６の開動作すな
わち給油回数が設定回数ｎ以上になつたならば、
制御部２６は補給タンク１７の油が空状態になつ
たと判断して、油補充信号Ｄを出力しランプ２７
を点灯させる。また、第７図に示すように第１回
の給油終了後から第２回の給油実行までの時間
T4を計測し、この時間T4が設定時間より短かい
場合には、制御部２６は圧縮機１に異常が生じて
いると判断して、異常信号Ｅを出力してブザー２
８を作動させる。 In the above-mentioned refueling operation, as shown in FIG. 6, the output from the oil level sensor 24 continues to indicate a decrease in the oil level, and the opening operation of the solenoid valve 16, that is, the number of refueling times, exceeds the set number n. If so,
The control unit 26 determines that the oil in the replenishment tank 17 is empty, outputs an oil replenishment signal D, and turns on the lamp 27.
lights up. In addition, as shown in Figure 7, the time from the end of the first refueling to the execution of the second refueling
T4 is measured, and if this time T4 is shorter than the set time, the control unit 26 determines that an abnormality has occurred in the compressor 1, outputs an abnormality signal E, and turns on the buzzer 2.
Activate 8.
なお、上述の実施例は給油量を調節する手段と
して電磁弁１６を用いたが電磁ポンプを用いるこ
ともできる。また制御部２６を他のアナログ回
路、デイジタル回路の組み合せを用いることも可
能である。 In addition, although the above-mentioned embodiment used the electromagnetic valve 16 as a means to adjust the amount of oil supply, an electromagnetic pump may also be used. It is also possible to use a combination of other analog circuits and digital circuits for the control section 26.
以上述べたように、本考案によれば、油分離器
内の油レベルの変動の少ない安定した給油制御を
実現できる。更に、その給油制御が他の制御に影
響して圧縮空気の圧力変動や運転効率を低下させ
ることがなくなる。
As described above, according to the present invention, stable oil supply control with less fluctuation in the oil level in the oil separator can be realized. Furthermore, the oil supply control will not affect other controls and cause compressed air pressure fluctuations or operational efficiency to deteriorate.
第１図は本考案の給油制御装置の一例を備えた
圧縮機の系統を示す図、第２図は本考案の制御装
置を構成する油レベルセンサの一例の構成を示す
図、第３図は本考案の制御装置における制御部の
一例の構成を示す図、第４図〜第７図は本考案の
装置による給油動作を説明するためのタイムチヤ
ートである。
１……圧縮機、３……吸込絞り弁、４……油分
離器、１５……油注入ノズル、１６……電磁弁、
１７……補給タンク、２０……貯溜槽、２４……
油レベルセンサ、２５……レベル検出回路、２６
……制御部、２７……ランプ、２８……ブザー。
FIG. 1 is a diagram showing the system of a compressor equipped with an example of the oil supply control device of the present invention, FIG. 2 is a diagram showing the configuration of an example of an oil level sensor that constitutes the control device of the present invention, and FIG. 4 to 7 are time charts for explaining the refueling operation by the device of the present invention. 1... Compressor, 3... Suction throttle valve, 4... Oil separator, 15... Oil injection nozzle, 16... Solenoid valve,
17... Supply tank, 20... Storage tank, 24...
Oil level sensor, 25...Level detection circuit, 26
...Control unit, 27...Lamp, 28...Buzzer.
Claims (1)
サと、油タンク内の潤滑油を圧縮機の吸込絞り弁
部に供給する油ノズルと、該油ノズルによつて供
給される潤滑油の油量を調節可能な油供給手段
と、該油レベルセンサからの検出信号によつて前
記油分離器内の油レベルを所定レベルに維持する
ように該油供給手段を制御する制御部とを備えた
油冷式圧縮機の給油制御装置において、 前記油ノズルを前記吸込絞り弁の上流側に配設
し、 前記油供給手段を前記油タンクと前記油ノズル
とを連絡する導管の途中に配設すると共に、 前記制御部は、前記検出信号が油レベル低下を
指示する期間であつて、前記吸込絞り弁が開の期
間において、第１の一定時間該油供給手段に油供
給を指示する開信号を出力すると共に、この一定
時間経過後、第２の一定時間該油供給手段への油
供給停止を指示する閉信号を出力するものである
ことを特徴とする油冷式圧縮機の給油制御装置。[Scope of Claim for Utility Model Registration] An oil level sensor that detects the oil level in an oil separator, an oil nozzle that supplies lubricating oil in an oil tank to a suction throttle valve of a compressor, and an oil nozzle that An oil supply means capable of adjusting the amount of lubricating oil supplied, and a detection signal from the oil level sensor to control the oil supply means to maintain the oil level in the oil separator at a predetermined level. In the oil supply control device for an oil-fed compressor, the oil nozzle is disposed upstream of the suction throttle valve, and the oil supply means communicates between the oil tank and the oil nozzle. The controller is arranged in the middle of the conduit, and is configured to supply oil to the oil supply means for a first certain period of time during a period in which the detection signal instructs a decrease in the oil level and the suction throttle valve is open. An oil-cooled type oil-cooled type, characterized in that it outputs an open signal instructing oil supply, and after a certain period of time has elapsed, a close signal instructing to stop oil supply to the oil supply means for a second certain period of time. Compressor oil supply control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986064118U JPH0110462Y2 (en) | 1986-04-30 | 1986-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986064118U JPH0110462Y2 (en) | 1986-04-30 | 1986-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61186787U JPS61186787U (en) | 1986-11-21 |
| JPH0110462Y2 true JPH0110462Y2 (en) | 1989-03-24 |
Family
ID=30594902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986064118U Expired JPH0110462Y2 (en) | 1986-04-30 | 1986-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0110462Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103887A (en) * | 1990-08-22 | 1992-04-06 | Hitachi Ltd | Oil tank in oil-cooling type compressor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528832B2 (en) * | 1976-04-30 | 1980-07-30 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53125308U (en) * | 1977-03-16 | 1978-10-05 | ||
| JPS5528832U (en) * | 1978-08-16 | 1980-02-25 |
-
1986
- 1986-04-30 JP JP1986064118U patent/JPH0110462Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528832B2 (en) * | 1976-04-30 | 1980-07-30 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04103887A (en) * | 1990-08-22 | 1992-04-06 | Hitachi Ltd | Oil tank in oil-cooling type compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61186787U (en) | 1986-11-21 |
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