EP0146538A1 - Dispositif pour moteurs marins a refroidissement par eau - Google Patents

Dispositif pour moteurs marins a refroidissement par eau

Info

Publication number
EP0146538A1
EP0146538A1 EP19830901839 EP83901839A EP0146538A1 EP 0146538 A1 EP0146538 A1 EP 0146538A1 EP 19830901839 EP19830901839 EP 19830901839 EP 83901839 A EP83901839 A EP 83901839A EP 0146538 A1 EP0146538 A1 EP 0146538A1
Authority
EP
European Patent Office
Prior art keywords
arrangement
opening
line
openings
cooling water
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.)
Withdrawn
Application number
EP19830901839
Other languages
German (de)
English (en)
Inventor
Knut Bergdahl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Np New Products Nordinvent Investment AB
Original Assignee
Np New Products Nordinvent Investment AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Np New Products Nordinvent Investment AB filed Critical Np New Products Nordinvent Investment AB
Publication of EP0146538A1 publication Critical patent/EP0146538A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/06—Cleaning; Combating corrosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/06—Cleaning; Combating corrosion
    • F01P2011/061—Cleaning or combating corrosion using filters

Definitions

  • the present invention relates to an arrangement for water—cooled marine engines which exhibit at least one suction opening and at Least one discharge opening for cooling water, said openings being intended to be situated beneath the surface of the water surrounding the vessel in which the engine is installed, in which case there run between the openings and the engine a first and a second line for the transport of the cooling water which is to be carried to and from the engine.
  • the medium utilized for cooling the engine is the surrounding water, which is sucked in and pumped round inside the engine or a heat exchanger in order to provide indirect cooling, whereupon it is once more discharged.
  • a filter or a sieve At the inlet point for the water is arranged a filter or a sieve so as to ensure that the channels in the engine or the heat exchanger and any pumps do not become choked with any impurities which may be present in the surrounding water.
  • the arrangement in accordance with the invention is provided with an arrangement for changing over the connection between the openings and the lines in such a way that for a given period the
  • first opening is connected to the first line and the second opening is connected to the second line,, whilst during an immediately following period the first opening is connected to the second line and the second opening is connected to the first line, and so on.
  • first opening is connected to the first line and the second opening is connected to the first line, and so on.
  • FIG. 1 is a schematic representation of a first embodiment
  • Figs. 2 and 3 show the second embodiment, with Fig. 2 being more detailed and consisting of a cross—section, whilst Fig. 3 is more schematic and shows a partly sectioned view.
  • the basic concept of the invention is that both the inlet and the outlet for the cooling water are fitted with filters or sieves, in conjunction with which an arrangement is provided for switching over the flows in such a way that one of the sieves, after having served as an inlet sieve for a s certain period, will serve as a discharge sieve for a following period, and vice versa. in this way any impurities which may have collected on the sieve during the inlet period will be washed away during the discharge period.
  • the arrangement illustrated in Fig. 1 exhibits a first line 1 , which is connected to the inlet side for the cooling water on the engine or the aforementioned heat exchanger, and a second line 2 , which is connected to the outlet point on the
  • OMPI WiPO engine or the heat exchanger These lines are connected to a change—over valve 3 with an operating shaft 4 .
  • Two lines 5 and 6 run from the change—over valve.
  • the valve -3 is in this case so arranged that when it is in one operating position it will maintain the line 1 connected to the line 6 and the line 2 to the line 5 , whereas when it is in its other operating position it will maintain the line 1 connected to the line 5 and the line 2 to the line 6 .
  • Change—over valves of this kind are previously disclosed and do not require to be described in any greater detail here.
  • the two lines 5 and 6 terminate outside the planking of the vessel and beneath the surface of the water, and each is fitted with its own sieve 7 and 8 .
  • the operating shaft 4 exhibits a lever arm 10 , to the outer end of which is connected a so—called ovei—centre spring 11 and a second spring 12 referred to in the following as the driving spring.
  • the driving spring 12 is connected by its other end to the free end of a second lever arm 13 , referred to below as the driving arm, which is supported on a shaft 14 and is acted upon by a crank pin 15 which is driven round by a slowly— otating motor 16 .
  • a valve arrangement 20 is formed from a housing 21 with a seat 22 and a guide 23 .
  • three channels these being a discharge channel 24 , an inlet channel 25 and an operating channel 26 .
  • the channels 24 and 25 are each situated in its own half of the guide, whilst the channel 26 extends along the centre of the guide.
  • the channel 24 is connected to the outlet point for the cooling water on the engine which is to be served by the sieve arrangement 20 , and the channel 25 extends to the inlet point for the cooling water.
  • the channel 26 is so arranged as to be connected alternately to the discharge point and the inlet point, as will be described in detail below.
  • a tubular slide 27 with a shell 28 and a base 29 . From the channel 24 there extend outwards as far as the outside of the guide 23 a first opening 30 and a second opening 31 . In the same way there extend inwards as far as the channel 25 from the outside of the guide two openings 32 and 33 .
  • the aforementioned openings are matched by four openings in the slide 27 , which is so arranged as to interact with the aforementioned openings, so that a first opening 34 in the slide 27 will interact with the opening 30 , an opening 35 in the slide will interact with the opening 31 , an opening 36 in the slide will interact with the opening 32 and an opening 37 in the slide will interact with the opening 33 .
  • the slide 27 is provided with rotational stops so that the openings in the slide cannot be rotated out of line with corresponding openings in the guide 23 , and with axial stops so that the slide can adopt not only the inner position illustrated in Fig. 2, but also an outer position.
  • Axial displacement of the slide produces two areas of movement, these being an inner area within which the openings 34 and " 36 are able to move and an outer area within which the openings 35 and 37 are able to move. Both these areas are served by a single sieve 38 , although this sieve exhibits a separating wall 39 which forms two individual chambers 41 and 42 in it and within which the two areas of movement are sit ' uatedr
  • the sieve is attached to the frame 21 by means of an end ring 40 which engages with the seat 22 .
  • the openings in the guide 23 and the slide 27 are matched one to the other in such a way with regard to their axial positions that, with the slide in its inner position as shown in Fig. 2, the openings 31 and 35 will be directly in line with each other and the openings 32 and 36 will also be directly in line with each other.
  • the other openings will, on the other hand, be displaced in relation to each other.
  • the channel 24 will be connected with the outer chamber 42 of the sieve 38
  • the channel 25 will be connected with the inner chamber 41 of the sieve.
  • the slide 27 adopts its outer position, the situation will be reversed.
  • the channel 24 will then be connected via the openings 30 and 34 with the inner chamber 41 of the sieve, whereas the channel 25 will be connected via the openings 33 and 37 with the outer chamber 42 of the sieve.
  • the previously open connections will thus be closed.
  • Fig. 3 are shown not only the outlet line 43 , but also the inlet line 44 to which the channels 24 and 25 are connected.
  • the channel 26 is connected to a third line 45 , which can be connected by means of a valve 46 either to the outlet line 43 or to the inlet line 44 .
  • This can be achieved in the manner shown by means of a movable valve body 47 , which is so arranged as to be activated by means of an operating device 48 . Movement of the valve body 47 between its two end positions (in the end position shown in Fig. 3, the channel 26 is connected via the line 45 to the inlet line 44 ) takes place at certain intervals, and the control device 48 may be a slowly rotating electric motor which is capable of causing the valve body 47 to move backwards and forwards.
  • check valves may be arranged between the lines 43 and 44 and the valve arrangement 46 .
  • the motor 16 imparts a slow rotation to the crank pin 15 . This will then cause the driving arm 13 to move from side to side.
  • the driving spring 12 will be further tensioned if it is assumed that the driving arm 13 is caused to rotate further about its shaft 14 in an anti—clockwise direction. Once a certain level of tension has been reached the force of the spring 11 will be overcome and the lever arm 10 will swing rapidly over to the second operating position in which the connection between the lines 1 and 2 on the one hand and 5 and 6 on the other hand is reversed.
  • the driving spring 12 will gradually be tensioned in the other direction and a new shift will take place, although this time in the opposite direction, thereby causing the flow to be switched in the lines 5 and 6 .
  • the sieve 7 will act as a suction sieve and the sieve 8 will act as a discharge sieve, whereas during the.intervening periods the situation will be the opposite.
  • one of the sieves having become choked during the period when it acts as a suction sieve, it will be washed clean during the period when it acts as a discharge sieve.
  • valve 3 If it is assumed that the valve 3 is situated relatively close to the motor and that the lines 5 and 6 are relatively long, the switching of the flow will cause a relatively large quantity of discharged, heated water from the engine or the heat exchanger to be sucked back into the system. This can lead to problems if the lines are long, especially if they are also of large bore and contain a considerable quantity of water. Accordingly, it would be desirable if the switching—over could take place as close as possible to the inlet and outlet sieves.
  • valve 3 it is, of course, possible to move the valve 3 to the inlet and outlet points on the actual planking of the vessel, although in this case the valve will be situated at a certain distance from the motor and it may be desirable for the mechanical equipment constituted by the valve switch—over arrangement to be positioned adjacent to the motor installation.
  • this has been achieved by the remote control of the valve arrangement.
  • Remote control takes place in such a way that water under alternating pressure from the line 43 and water from the suction line 44 is connected to the cavity 50 which is formed between the ends of the guide 23 and the base 29 of the slide 27 .
  • the slide 27 will be forced outwards so that the aforementioned connections with the slide in its outer position " will be achieved.
  • the charactersitic feature of the invention is thus that the flows of water to and from the cooling water inlet and outlet are reversed periodically. As has been shown, this can take place by means of a valve arrangement near the engine or a valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)

Abstract

Dispositif pour moteurs marins à refroidissement par eau qui présnte au moins une ouverture d'aspiration (7) et au moins une ouverture d'évacuation (8) pour l'eau de refroidissement. Les ouvertures sont prévues pour être situées en-dessous de la surface de l'eau entourant le navire dans lequel est installé le moteur. Entre les ouvertures et le moteur se trouvent une première et une seconde lignes (1, 2) pour le transport de l'eau de refroidissement qui doit être amenée au moteur et en être évacuée. Un mécanisme de commutation est capable de commuter la connexion entre les ouvertures (7, 8) et les lignes (1, 2) de telle manière que, pendant une période donnée, la première ouverture est connectée à la première ligne et la seconde ouverture à la seconde ligne, alors que, pendant une période suivant immédiatement, la première ouverture est connectée à la seconde ligne et la seconde ouverture à la première ligne, ainsi de suite. Toutes les impuretés pouvant avoir été attrapées dans la première ouverture par aspiration lorsque celle-ci était utilisée comme ouverture d'aspiration seront évacuées lorsqu'elle est utilisée comme ouverture de décharge pendant la période suivante.
EP19830901839 1983-05-24 1983-05-24 Dispositif pour moteurs marins a refroidissement par eau Withdrawn EP0146538A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1983/000203 WO1984004734A1 (fr) 1983-05-24 1983-05-24 Dispositif pour moteurs marins a refroidissement par eau

Publications (1)

Publication Number Publication Date
EP0146538A1 true EP0146538A1 (fr) 1985-07-03

Family

ID=20349615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830901839 Withdrawn EP0146538A1 (fr) 1983-05-24 1983-05-24 Dispositif pour moteurs marins a refroidissement par eau

Country Status (2)

Country Link
EP (1) EP0146538A1 (fr)
WO (1) WO1984004734A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2075444C (fr) * 1991-08-28 2002-05-28 Richard F. Creeron Appareil et procede servant a changer un systeme de refroidissement
US5809945A (en) * 1995-08-10 1998-09-22 Prestone Products Corporation Drain-and-fill methods and apparatus for automotive cooling systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2550497A1 (de) * 1975-11-11 1977-05-12 Fahr Ag Maschf Maehdrescher mit einem luftleit- und reinigungssystem fuer die kuehl- und verbrennungsluft
SE428793B (sv) * 1981-12-08 1983-07-25 New Prod Invest Npi Ab Anordning vid vattenkylda marinmotorer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8404734A1 *

Also Published As

Publication number Publication date
WO1984004734A1 (fr) 1984-12-06

Similar Documents

Publication Publication Date Title
ES2351978T3 (es) Filtro con aparato para limpieza de filtro.
CS169891A3 (en) Self-cleaning filter
FR2524092A1 (fr) Embrayage de regulation hydrodynamique
RU2305208C1 (ru) Вертикальный шнеково-центробежный насос
EP0146538A1 (fr) Dispositif pour moteurs marins a refroidissement par eau
FR3095018B1 (fr) Pompe cardiaque à couplage magnétique et à flux inverse.
CN112943804B (zh) 一种罗茨真空泵用自润滑轴承
EP1029782A2 (fr) Appareil de basculement motorisé, en particulier pour lever et pour abaisser un ensemble de propulsion marine
US3418886A (en) Vane type oscillating hydraulic motor
US5474101A (en) Rapid clean-out valve assembly
KR100381801B1 (ko) 고압 용적식 펌프
JP3877037B2 (ja) 往復ポンプ装置
CA2326366C (fr) Lubrificateur pour moteur a combustion a carter sec
FR2587677A1 (fr) Dispositif de propulsion marin comportant un dispositi f de refroidissement d'huile
JP3127368B2 (ja) 船外機
US20220177099A1 (en) Outboard motor and lubricating oil introducing method thereof
JPH09112495A (ja) スクリーン装置
CN210343715U (zh) 一种新型多级排水泵
JP3882152B2 (ja) 揺動弁形コンクリートポンプの揺動管跳上方法
CN117404041B (zh) 一种注采气井口装置
SE428793B (sv) Anordning vid vattenkylda marinmotorer
SU1147854A1 (ru) Клапанный узел скважинного электроприводного насоса
FR2473646A1 (fr) Pompe volumetrique
CA1208538A (fr) Mecanisme auto-inverseur de commande hydraulique
KR860001333Y1 (ko) 콘크리이트 펌프용 유로 전환밸브 유닛

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL SE

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850426

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BERGDAHL, KNUT