JPH0339180B2 - - Google Patents
Info
- Publication number
- JPH0339180B2 JPH0339180B2 JP59001042A JP104284A JPH0339180B2 JP H0339180 B2 JPH0339180 B2 JP H0339180B2 JP 59001042 A JP59001042 A JP 59001042A JP 104284 A JP104284 A JP 104284A JP H0339180 B2 JPH0339180 B2 JP H0339180B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- water pump
- pressure
- discharge pressure
- engine
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 88
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 230000005856 abnormality Effects 0.000 claims description 10
- 239000000446 fuel Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011022 operating instruction Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Description
【発明の詳細な説明】
本発明は、消防ポンプ車等に搭載される車載型
水ポンプの自動調圧装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic pressure regulating device for a vehicle-mounted water pump mounted on a fire pump vehicle or the like.
イ 従来技術
火災現場において、１台の消防ポンプ車に複数
口の消火ホースを接続して消火作業を行う場合が
ある。特に送水隊と先行隊の２台の消防ポンプ車
を１組として送水経路を形成し、消火作業を行う
場合、先行車には２口の消火ホースを接続して放
水を行う場合が多い。このような放水条件下で、
先行隊の消火ホースのうち何れか一方の放水を停
止した場合、水槌作用により他方の消火ホースお
よび消火ホースを保持する筒先作業員に瞬間的に
大きな反動力が作用し、思わぬ事故が発生するこ
とがあつた。また上記水槌作用による放水配管内
の圧力変化が平衡状態に達しても、車載型水ポン
プの吐出量は一定であるから放水中の消火ホース
の放水圧力は上昇する。B. Prior Art At a fire scene, firefighting work is sometimes carried out by connecting multiple fire hoses to a single fire pump vehicle. In particular, when a water supply route is formed using two fire pump vehicles, a water supply team and a leading team, to extinguish a fire, two fire hoses are often connected to the leading vehicle to spray water. Under such watering conditions,
If one of the fire hoses of the preceding team stops discharging water, a large reaction force will momentarily act on the other fire hose and the worker holding the fire hose due to the water hammer action, resulting in an unexpected accident. I had something to do. Further, even if the pressure change in the water discharge piping due to the water hammer action reaches an equilibrium state, the discharge amount of the on-vehicle water pump remains constant, so the water discharge pressure of the fire hose discharging water increases.
従つて、筒先に作用する放水の反動力が筒先作
業員の筒先保持力を上廻り、筒先の操作に支障を
来す欠点も認められた。 Therefore, it has been recognized that the reaction force of the sprayed water acting on the tip of the tube exceeds the force of the tip worker to hold the tip of the tube, thereby hindering the operation of the tip of the tube.
近年、上述の問題点を解消するため、車載型水
ポンプ用の安全装置あるいは自動調圧装置が、
種々、提案されている。例えば、デイーゼルエン
ジンを水ポンプの駆動源として使用する消防ポン
プ車において、該デイーゼルエンジンの回転数の
制御装置として電子ガバナ式自動調圧装置が汎用
されている。 In recent years, in order to solve the above-mentioned problems, safety devices or automatic pressure regulating devices for on-vehicle water pumps have been developed.
Various proposals have been made. For example, in a fire pump vehicle that uses a diesel engine as a driving source for a water pump, an electronic governor type automatic pressure regulating device is widely used as a control device for the rotation speed of the diesel engine.
上記電子ガバナ式自動調圧装置は、走行用エン
ジンにおける燃料噴射量の調整手段として電子ガ
バナを使用するものであつて、燃料噴射量による
エンジン回転数の変化を車載型水ポンプの吐出圧
力調整媒体として利用している。 The electronic governor type automatic pressure regulating device uses an electronic governor as a means for adjusting the fuel injection amount in a driving engine, and uses an on-vehicle water pump's discharge pressure adjustment medium to adjust the engine speed change due to the fuel injection amount. It is used as.
上記電子ガバナ式自動調圧装置に、予め車載型
水ポンプの１口放水時の吐出圧力を設定しておけ
ば、後の放水作業において放水口数が２口あるい
は３口以上に増加しても最初に設定された吐出圧
力を常に維持するように走行用デイーゼルエンジ
ンの回転数が自動制御されるから、常時一定の吐
出圧力で放水を行うことができる。 By setting the discharge pressure for one outlet of the vehicle-mounted water pump in advance on the electronic governor type automatic pressure regulating device, even if the number of water outlets increases to two or three or more in later water discharging operations, Since the rotation speed of the diesel engine for driving is automatically controlled so as to always maintain the discharge pressure set to , water can be discharged at a constant discharge pressure at all times.
慣用の電子ガバナ式自動調圧装置は、走行用デ
イーゼルエンジンにガバナ・アクチユエータ付燃
料噴射ポンプを装着したものであつて、アクセル
センサまたは圧力センサからの信号を演算回路に
入力し、該演算回路から出力されたエンジン回転
数の制御信号をガバナ・アクチユエータに入力
し、リンク機構を介して燃料の噴射量を調節する
ように構成されている。然しながら上記電子ガバ
ナ式自動調圧装置は、デイーゼルエンジンの機種
に応じて電子ガバナの構造を変更しなければなら
ず、専用設計となるため、汎用性に乏しく、また
構造的に燃料噴射ポンプを必要としないガソリン
エンジンには取り付けることができなかつた。 A conventional electronic governor type automatic pressure regulating device is a diesel engine for driving equipped with a fuel injection pump with a governor/actuator, and a signal from an accelerator sensor or a pressure sensor is input to an arithmetic circuit. The output engine speed control signal is input to the governor actuator and the fuel injection amount is adjusted via a link mechanism. However, the electronic governor type automatic pressure regulating device described above requires changing the structure of the electronic governor depending on the diesel engine model, and because it is a special design, it lacks versatility and structurally requires a fuel injection pump. It could not be installed on gasoline engines that did not have a
ロ 発明の目的
本発明の主要な目的は、放水口数の変化にかか
わらず、一定の圧力で水を吐出し得る安全性およ
び汎用性に優れた車載型水ポンプの自動調圧装置
を提供することである。B. Purpose of the Invention The main purpose of the present invention is to provide an automatic pressure regulating device for a vehicle-mounted water pump that is highly safe and versatile and can discharge water at a constant pressure regardless of changes in the number of water discharge ports. It is.
更に、本発明の他の主要な目的は、デイーゼル
エンジンのみならずガソリンエンジンにも適用可
能な車載型水ポンプの自動調圧装置を提供するこ
とにある。 Furthermore, another main object of the present invention is to provide an automatic pressure regulating device for an on-vehicle water pump that is applicable not only to diesel engines but also to gasoline engines.
ハ 発明の構成
本発明は、自動車の走行用エンジンによつて駆
動される車載型水ポンプの吐出圧が設定圧力とな
るように走行用エンジンを制御する車載型水ポン
プ用自動調圧装置において、エンジン調速レバー
に連結したサーボモータ機構と、消火ホースの筒
先作業員が携帯するリモコンボツクス及び消防ポ
ンプ車の側面に夫々設置した上記水ポンプの吐出
圧力設定手段と、上記水ポンプの吸込圧力、吐出
圧力並びに回転数を検知する各センサー手段から
の信号と上記設定手段からの信号とを比較し、演
算処理して、上記水ポンプの吐出圧力が上記設定
圧力に合致するように上記サーボモータ機構を作
動させると共に、上記吐出圧力と設定圧力との差
がサーボモータ機構による調整可能範囲を超えた
異常時及び上記水ポンプの回転数が最高回転数に
なつた異常時上記走行用エンジンをアイドリング
回転に低下させる制御回路と、上記異常時に作動
する警報装置とを具備させたものである。C. Structure of the Invention The present invention provides an automatic pressure regulator for a vehicle-mounted water pump that controls the vehicle-mounted water pump driven by the vehicle's vehicle-mounted engine so that the discharge pressure of the vehicle-mounted water pump becomes a set pressure. a servo motor mechanism connected to an engine speed control lever, a remote control box carried by a worker at the end of a fire hose, a discharge pressure setting means for the water pump installed on the side of the fire pump vehicle, and a suction pressure for the water pump; The servo motor mechanism compares the signals from each sensor means for detecting the discharge pressure and rotation speed with the signal from the setting means and performs arithmetic processing so that the discharge pressure of the water pump matches the set pressure. In addition, in the event of an abnormality in which the difference between the discharge pressure and the set pressure exceeds the adjustable range by the servo motor mechanism, or in the event of an abnormality in which the rotation speed of the water pump reaches the maximum rotation speed, the driving engine is idling. The system is equipped with a control circuit that lowers the power level, and an alarm device that operates in the event of the above-mentioned abnormality.
ニ 実施例
図面は、本発明に係る車載型水ポンプ用自動調
圧装置の全体構造を例示する斜視図である。D. Embodiment The drawing is a perspective view illustrating the overall structure of an automatic pressure regulator for a vehicle-mounted water pump according to the present invention.
図面において、走行用エンジンＥおよび車載型
水ポンプＰは図示しないトラツクシヤーシ上に架
装されている。上記車載型水ポンプＰは、走行用
エンジンＥに装着されたポンプ用ミツシヨンＭを
介して走行用エンジンＥによつて駆動され得るよ
うに接続されている。 In the drawing, a driving engine E and an on-vehicle water pump P are mounted on a truck chassis (not shown). The vehicle-mounted water pump P is connected to the driving engine E via a pump transmission M mounted on the driving engine E so as to be driven by the driving engine E.
車載型水ポンプＰは、図示しない消防ポンプ車
の左右に１口ずつ計２口に分岐した吸込管１（図
では１口のみ図示）と、該消防ポンプ車の左右に
２口ずつ計４口に分岐した吐出管２（図では２口
のみ図示）とを有し、上記吸込管１及び吐出管２
の先端にはそれぞれコツクＣが設けられている。 The on-vehicle water pump P has a suction pipe 1 branched into two ports, one port on the left and right sides of a fire pump vehicle (not shown) (only one port is shown in the figure), and a total of four ports, two ports on the left and right sides of the fire pump vehicle. The suction pipe 1 and the discharge pipe 2 have branched discharge pipes 2 (only two ports are shown in the figure).
A tip C is provided at each tip.
車載型水ポンプＰには、該車載型水ポンプＰの
吸込圧力を検知する負圧センサーＳ１、該車載型
水ポンプＰの吐出圧力を検知する圧力センサーＳ
２ならびに該車載型水ポンプＰの主軸の回転数を
検知する回転センサーＳ３が取り付けられてい
る。また上記車載型水ポンプＰには、呼び水用の
真空ポンプを備えた揚水装置３が装着されてい
る。 The vehicle-mounted water pump P includes a negative pressure sensor S1 that detects the suction pressure of the vehicle-mounted water pump P, and a pressure sensor S that detects the discharge pressure of the vehicle-mounted water pump P.
2 as well as a rotation sensor S3 that detects the rotation speed of the main shaft of the vehicle-mounted water pump P. Further, the vehicle-mounted water pump P is equipped with a water pumping device 3 equipped with a vacuum pump for priming water.
上記車載型水ポンプＰの吐出圧力設定器４ある
いは４′は、消防ポンプ車の左右の側面に設けら
れた図示しない操作盤に直接取り付けるか、ある
いは、延長コード５を介して筒先作業員の携帯す
る図示しないリモコンボツクスに取り付けられて
いる。 The discharge pressure setting device 4 or 4' of the vehicle-mounted water pump P can be directly attached to an operation panel (not shown) provided on the left and right sides of the fire pump vehicle, or can be carried by a worker at the end of the pipe via an extension cord 5. It is attached to a remote control box (not shown).
上記各センサー手段Ｓ１，Ｓ２およびＳ３なら
びに圧力設定器４または４′の出力信号は、制御
回路６で比較演算処理され、サーボモータ機構７
の制御信号として出力される。 The output signals of the respective sensor means S1, S2 and S3 and the pressure setting device 4 or 4' are compared and processed in the control circuit 6, and the servo motor mechanism 7
output as a control signal.
上記サーボモータ機構７は、サーボモータ本体
８、電磁クラツチ９、ギアボツクス１０，１１な
らびに手動調整用のダイヤル１２，１２から構成
されている。 The servo motor mechanism 7 is composed of a servo motor main body 8, an electromagnetic clutch 9, gear boxes 10, 11, and dials 12, 12 for manual adjustment.
バツテリー１３は、制御回路６ならびにサーボ
モータ機構７に安定した一定の電圧を供給する電
源として持続されている。 The battery 13 continues as a power source that supplies a stable and constant voltage to the control circuit 6 and the servo motor mechanism 7.
尚、参照番号１４は、前記揚水装置３の操作
盤、参照番号１５は揚水装置３の真空ポンプ（図
示せず）に伝達すべき駆動力を継断する電磁クラ
ツチ、参照番号１６は車載型水ポンプＰに異常が
発生した際にこれを報知するための警報装置であ
る。上記操作盤１４および警報装置１６は、図面
から理解し得る如く制御回路６に対し電気的に接
続されている。 In addition, reference number 14 is an operation panel of the water pumping device 3, reference number 15 is an electromagnetic clutch that connects and disconnects the driving force to be transmitted to the vacuum pump (not shown) of the water pumping device 3, and reference number 16 is a vehicle-mounted water pump. This is an alarm device for notifying when an abnormality occurs in the pump P. The operation panel 14 and alarm device 16 are electrically connected to the control circuit 6, as can be understood from the drawings.
以下に上記車載型水ポンプ用自動調圧装置の操
作要領を説明する。 The operating procedure of the automatic pressure regulator for a vehicle-mounted water pump will be explained below.
消防ポンプ車が火災現場に到着した後、上記吸
込管１に、該吸込管１と消火栓、河川等の給水源
とを連絡するホース（図示せず）を接続し、吸込
管１の先端に設けられたコツクＣを開位置にし
て、車載型水ポンプＰ及び揚水装置３を作動させ
る。 After the fire pump vehicle arrives at the fire scene, a hose (not shown) connecting the suction pipe 1 with a fire hydrant, a water supply source such as a river, etc. is connected to the suction pipe 1, and a hose (not shown) is installed at the tip of the suction pipe 1. The tank C that has been opened is placed in the open position, and the on-vehicle water pump P and water pumping device 3 are operated.
上記揚水装置３によつて車載型水ポンプＰおよ
び吸込管１は、内部の空気が大気中に放出されて
負圧状態となり、該負圧による吸引力によつて前
記車載型水ポンプＰ及び吸込管１の内部に給水源
からの水が吸込まれる。上記車載型ポンプＰの内
部が水で満たされ、呼び水動作が完了した時点
で、揚水装置３は自動的に停止し、車載型水ポン
プＰは、放水可能な状態となる。 The on-vehicle water pump P and the suction pipe 1 are discharged into the atmosphere by the water pumping device 3, and become in a negative pressure state. Water from a water supply source is drawn into the interior of the pipe 1 . When the interior of the vehicle-mounted pump P is filled with water and the priming operation is completed, the water pumping device 3 automatically stops, and the vehicle-mounted water pump P becomes ready to discharge water.
然る後、車載型水ポンプＰの吐出管２に消火ホ
ースを接続し、該車載型水ポンプＰの吐出圧力を
圧力設定器４によつて設定する。この状態で吐出
管２のコツクＣを開くと、前記圧力設定器４によ
つて設定された所定の吐出圧力で車載型水ポンプ
Ｐから消火ホースに水が送給される。 After that, a fire hose is connected to the discharge pipe 2 of the vehicle-mounted water pump P, and the discharge pressure of the vehicle-mounted water pump P is set by the pressure setting device 4. When the outlet C of the discharge pipe 2 is opened in this state, water is supplied from the vehicle-mounted water pump P to the fire hose at a predetermined discharge pressure set by the pressure setting device 4.
上記のような操作要領に従つて消火活動を行う
のであるが、放水中に何らかの理由で消火ホース
の放水口数を増減させると、車載型水ポンプＰの
吐出量は一定なので、残余の吐出管２における水
の吐出圧力が変化する。該吐出圧力の変化は、圧
力センサーＳ２によつて検知され、該圧力センサ
ーＳ２からの信号は、制御回路６において、圧力
設定器４からの信号と比較演算処理され、該制御
回路６は、上記圧力差を零にすべくサーボモータ
機構７に制御信号を伝達する。 Fire extinguishing activities are carried out according to the operating instructions described above, but if the number of water outlets of the fire hose is increased or decreased for some reason while water is being sprayed, the discharge amount of the on-vehicle water pump P is constant, so the remaining discharge pipe 2 The water discharge pressure at changes. The change in the discharge pressure is detected by the pressure sensor S2, and the signal from the pressure sensor S2 is compared with the signal from the pressure setting device 4 in the control circuit 6, and the control circuit 6 A control signal is transmitted to the servo motor mechanism 7 to make the pressure difference zero.
上記サーボモータ機構７は、制御回路６から出
力された制御信号によつてサーボモータ本体８を
正逆いずれか一方向に回転させ、電磁クラツチ
９、ギアボツクス１０，１１を介して、エンジン
調速レバーＡを増速側または減速側のいずれか一
方に変位させる。上記エンジン調速レバーＡの変
位により、燃料噴射量または混合気供給量が変化
し、これに伴つて走行用エンジンＥの回転数が増
減する。 The servo motor mechanism 7 rotates the servo motor main body 8 in either forward or reverse direction in response to a control signal output from the control circuit 6, and rotates the servo motor main body 8 in one direction, either forward or reverse, and rotates the engine speed control lever via an electromagnetic clutch 9 and gear boxes 10, 11. A is displaced to either the speed increasing side or the decelerating side. The displacement of the engine speed regulating lever A changes the amount of fuel injection or the amount of air-fuel mixture supplied, and the rotational speed of the driving engine E increases or decreases accordingly.
従つて、上記走行用エンジンＥによつて駆動さ
れる車載型水ポンプＰは、前記吐出圧力設定器４
によつて設定された設定圧力と実際の吐出圧力と
の差を解消すべくその主軸回転数が調整される。 Therefore, the vehicle-mounted water pump P driven by the traveling engine E has the discharge pressure setting device 4.
The main shaft rotational speed is adjusted to eliminate the difference between the set pressure set by and the actual discharge pressure.
ところで上記自動調圧装置の作動時において、
上記車載型水ポンプＰの吸込圧力がキヤビテーシ
ヨン発生寸前の圧力になつた場合、吸込管１に接
続されたホースの先端が、河川等の給水源から飛
び出して空気を吸入した場合、吐出圧力と設定圧
力との差が自動調圧装置による調整範囲を超えた
場合、あるいは吸入側または吐出側ホースに破損
が生じる等、何らかの原因で走行用エンジンＥが
最高回転数まで吹き上がつた場合には、前記制御
回路６は各センサー手段Ｓ１，Ｓ２，Ｓ３からの
信号により車載型水ポンプＰの運転状態に異常が
生じたものと判断し、前記警報装置１６によつて
作業員に異常事態の発生を報知すると共に数秒以
内に走行用エンジンＥの回転数をアイドリンク状
態迄低下せしめ、車載型水ポンプＰによる送水状
態を中止させる。 By the way, when the automatic pressure regulating device is activated,
If the suction pressure of the vehicle-mounted water pump P reaches a pressure on the verge of cavitation, and if the end of the hose connected to the suction pipe 1 jumps out from a water supply source such as a river and sucks air, the discharge pressure and setting If the difference in pressure exceeds the adjustment range of the automatic pressure regulator, or if the drive engine E revs up to its maximum speed for some reason, such as damage to the suction or discharge hose, The control circuit 6 determines that an abnormality has occurred in the operating state of the on-vehicle water pump P based on the signals from the sensor means S1, S2, and S3, and the alarm device 16 alerts the worker to the occurrence of an abnormal situation. At the same time as notification, the rotational speed of the driving engine E is lowered to an idle state within a few seconds, and the water supply state by the on-vehicle water pump P is stopped.
また、上記車載型水ポンプ用自動調圧装置にお
いては、サーボモータ機構７の電磁クラツチ９を
非接続状態に切換えることにより、手動調整ダイ
ヤル１２を操作して手動方式で車載型水ポンプＰ
の吐出圧力を調整することも可能である。 In addition, in the automatic pressure regulating device for a vehicle-mounted water pump, the electromagnetic clutch 9 of the servo motor mechanism 7 is switched to a disconnected state, and the manual adjustment dial 12 is operated to manually control the vehicle-mounted water pump P.
It is also possible to adjust the discharge pressure.
更に本発明に係る自動調圧装置においては、リ
モコンコード５を介してリモコンボツクスに取り
付けた吐出圧力設定器４′を、消火ホースの筒先
作業員が操作することによつて筒先で車載型水ポ
ンプＰの吐出圧力を遠隔調整することができる。 Furthermore, in the automatic pressure regulating device according to the present invention, a discharge pressure setting device 4' attached to the remote control box via the remote control cord 5 is operated by a worker at the end of the fire hose, so that the on-vehicle water pump can be operated at the end of the fire hose. The discharge pressure of P can be adjusted remotely.
ホ 発明の効果
本発明は、サーボモータ機構を、エンジン調速
レバーに連結したから、デイーゼルエンジン及び
ガソリンエンジンのいずれにも適用することがで
き、別型式のエンジンにも共通に適用できるた
め、汎用性が向上する。また、水ポンプの吐出圧
力設定手段を、消火ホースの筒先作業員の携帯す
るリモコンボツクス及び消防ポンプ車の側面に
夫々設置したから、消防ポンプ車の側面で設定で
きることはもとより、特に、消防ポンプ車から離
隔した消火ホースの筒先で、火災現場の状況に応
じた最適の吐出圧力を自由に設定することができ
る。さらに、制御回路によつて、通常時、放水口
数に関係なく水ポンプの吐出圧力を略一定に保持
させることができ、特に、異常時には、走行用エ
ンジンをアイドリング回転に低下させたから、エ
ンジン及び水ポンプの破損を防止することがで
き、安全性が向上する。そして、上記異常時に
は、警報装置を作動させたから、消防士にはすぐ
に適切な処置をとらせることができる。E. Effects of the Invention Since the servo motor mechanism is connected to the engine speed regulating lever, the present invention can be applied to both diesel engines and gasoline engines, and can also be commonly applied to different types of engines. Improves sex. In addition, since the water pump discharge pressure setting means is installed in the remote control box carried by the worker at the end of the fire hose and on the side of the fire pump vehicle, it is possible to set the water pump discharge pressure from the side of the fire pump vehicle. At the end of the fire hose, which is located far away from the fire hose, you can freely set the optimal discharge pressure depending on the situation at the fire scene. Furthermore, the control circuit allows the discharge pressure of the water pump to be maintained at a substantially constant level regardless of the number of water outlets under normal conditions.In particular, when an abnormality occurs, since the driving engine is reduced to idling speed, the engine and Damage to the pump can be prevented, improving safety. Furthermore, in the event of the above abnormality, since the alarm device is activated, firefighters can immediately take appropriate measures.
図面は、本発明に係る車載型水ポンプ用自動調
圧装置の全体構造を例示する斜視図である。
Ｐ……車載型水ポンプ、Ｅ……走行用エンジ
ン、Ｓ１，Ｓ２，Ｓ３……センサー手段、４，
４′……吐出圧力の設定手段、６……制御回路、
７……サーボモータ機構。
The drawing is a perspective view illustrating the overall structure of an automatic pressure regulator for a vehicle-mounted water pump according to the present invention. P... Vehicle-mounted water pump, E... Traveling engine, S1, S2, S3... Sensor means, 4,
4'...Discharge pressure setting means, 6...Control circuit,
7... Servo motor mechanism.
Claims (1)
車載型水ポンプの吐出圧が設定圧力となるように
走行用エンジンを制御する車載型水ポンプ用自動
調圧装置において、 エンジン調速レバーに連結したサーボモータ機
構と、 消火ホースの筒先作業員が携帯するリモコンボ
ツクス及び消防ポンプ車の側面に夫々設置した上
記水ポンプの吐出圧力設定手段と、 上記水ポンプの吸込圧力、吐出圧力並びに回転
数を検知する各センサー手段からの信号と上記設
定手段からの信号とを比較し、演算処理して、上
記水ポンプの吐出圧力が上記設定圧力に合致する
ように上記サーボモータ機構を作動させると共
に、上記吐出圧力と設定圧力との差がサーボモー
タ機構による調整可能範囲を超えた異常時及び上
記水ポンプの回転数が最高回転数になつた異常時
上記走行用エンジンをアイドリング回転に低下さ
せる制御回路と、 上記異常時に作動する警報装置とを具備させた
ことを特徴とする車載型水ポンプ用自動調圧装
置。[Scope of Claims] 1. An automatic pressure regulator for a vehicle-mounted water pump that controls a vehicle-mounted water pump driven by the vehicle's vehicle engine so that the discharge pressure of the vehicle-mounted water pump reaches a set pressure, the engine A servo motor mechanism connected to a speed regulating lever, a remote control box carried by a worker at the end of a fire hose, a means for setting the discharge pressure of the water pump installed on the side of the fire pump vehicle, and suction pressure and discharge pressure of the water pump. Signals from each sensor means for detecting pressure and rotational speed are compared with signals from the setting means, and the servo motor mechanism is operated so that the discharge pressure of the water pump matches the set pressure by arithmetic processing. In addition to operating the engine, in the event of an abnormality in which the difference between the discharge pressure and the set pressure exceeds the adjustable range by the servo motor mechanism, or in the event of an abnormality in which the rotational speed of the water pump reaches the maximum rotational speed, the driving engine is set to idling speed. An automatic pressure regulating device for a vehicle-mounted water pump, characterized by comprising a control circuit for lowering the pressure, and an alarm device that operates in the event of the above-mentioned abnormality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP104284A JPS60145432A (en) | 1984-01-06 | 1984-01-06 | Automatic pressure regulator for car mount water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP104284A JPS60145432A (en) | 1984-01-06 | 1984-01-06 | Automatic pressure regulator for car mount water pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60145432A JPS60145432A (en) | 1985-07-31 |
| JPH0339180B2 true JPH0339180B2 (en) | 1991-06-13 |
Family
ID=11490502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP104284A Granted JPS60145432A (en) | 1984-01-06 | 1984-01-06 | Automatic pressure regulator for car mount water pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60145432A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2567222B2 (en) * | 1986-04-01 | 1996-12-25 | 株式会社小松製作所 | Engine control method and apparatus for wheeled construction machine |
| JP2521085Y2 (en) * | 1990-05-25 | 1996-12-25 | 株式会社フジクラ | In-pipe passage device |
| JP5921085B2 (en) * | 2011-05-17 | 2016-05-24 | 株式会社モリタホールディングス | Pump device and work vehicle equipped with the pump device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5347144U (en) * | 1976-09-17 | 1978-04-21 | ||
| JPS5814436B2 (en) * | 1975-12-22 | 1983-03-18 | タイホウヤクヒンコウギヨウ カブシキガイシヤ | Pyrazolopyridine |
| JPS592357A (en) * | 1982-06-28 | 1984-01-07 | Toshiba Corp | Semiconductor integrated circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814436U (en) * | 1981-07-23 | 1983-01-29 | 株式会社ボッシュオートモーティブ システム | Starting protection circuit for electronic governor for fire engines |
-
1984
- 1984-01-06 JP JP104284A patent/JPS60145432A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5814436B2 (en) * | 1975-12-22 | 1983-03-18 | タイホウヤクヒンコウギヨウ カブシキガイシヤ | Pyrazolopyridine |
| JPS5347144U (en) * | 1976-09-17 | 1978-04-21 | ||
| JPS592357A (en) * | 1982-06-28 | 1984-01-07 | Toshiba Corp | Semiconductor integrated circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60145432A (en) | 1985-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |