US3359720A - Maneuvering mechanism for reversible internal combustion engines - Google Patents

Maneuvering mechanism for reversible internal combustion engines Download PDF

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Publication number
US3359720A
US3359720A US551716A US55171666A US3359720A US 3359720 A US3359720 A US 3359720A US 551716 A US551716 A US 551716A US 55171666 A US55171666 A US 55171666A US 3359720 A US3359720 A US 3359720A
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United States
Prior art keywords
engine
maneuvering
valve
air
disc
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Expired - Lifetime
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US551716A
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English (en)
Inventor
Brelen Eric Georg Fridolf
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Goetaverken AB
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Goetaverken AB
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/21—Control means for engine or transmission, specially adapted for use on marine vessels
    • B63H21/213—Levers or the like for controlling the engine or the transmission, e.g. single hand control levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/22—Use of propulsion power plant or units on vessels the propulsion power units being controlled from exterior of engine room, e.g. from navigation bridge; Arrangements of order telegraphs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D27/00—Controlling engines characterised by their being reversible
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
    • B63H23/08—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing with provision for reversing drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2760/00—Control of valve gear to facilitate reversing, starting, braking of four stroke engines
    • F01L2760/002—Control of valve gear to facilitate reversing, starting, braking of four stroke engines for reversing or starting four stroke engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/07—Automatic control systems according to one of the preceding groups in combination with control of the mechanism receiving the engine power

Definitions

  • FIG. 3 MANEUVERING MECHANISM FOR REVERSIBLE INTERNAL COMBUSTION ENGINES Filed May 20, 1966 4 Sheets-Sheet 5 FIG. 3
  • a pressure medium impulse operated maneuvering mechanism for an internal combustion engine includes a first circuit to start, and if necessary to reverse the engine, as well as a second circuit for determining the fuel supply.
  • a maneuvering shaft in this mechanism is adapted to be turned in relation to the magnitude of the fuel supply and has a disc fixed thereon, which is provided with two notches in its periphery.
  • a catching memher in the first (reversing) circuit is adapted to co-operate with the first notch, and a blocking member in the second circuit is adapted to co-operate with the second notch, said catching member and said blocking member each containing an axially displaceable slide adapted to be shifted in dependence of the impulses in said circuits.
  • the present invention refers to a mechanism for maneuvering internal combustion engines adapted to be started and reversed by means of compressed air.
  • One object of the invention is to provide a simple remote control mechanism by means of which the required governing impulses will always be effected in the proper order.
  • a further object of the invention is to include means to ensure that the fuel supply to the engine will only take place after a suitable delay ensuring a proper starting in the correct direction by means of the starting air.
  • Another inventive object is the provision of means for interrupting the pressure medium supply to the remote control and for directly influencing the vital parts of the Patented Dec. 26, 1967 maneuvering mechanism for the governing of the engine in cases of emergency.
  • FIGURE 1 shows schematically the essential components of a reversing mechanism according to the invention as utilized with a ships reversible engine.
  • FIGURE 2 shows on a larger scale a section through a part which in the following will be called the maneuvering box.
  • FIGURE 3 is a section along line IIIIII in FIG- URE 2.
  • FIGURE 4 shows a section along line IV--IV in FIG- URE 2.
  • FIGURE 1 is schematic and the parts contained therein have been arranged in such a manner that the working thereof may be better understood.
  • the engine is intended to be governed either from a maneuvering post arranged on the ships bridge (BC) or from the engine room (ERC).
  • BC ships bridge
  • ERP engine room
  • the latter can be resorted to in cases of emergency, when the ship is brought into or out of harbor, when repeated maneuvers are required, or during overhaul work when the ship is in harbor.
  • a maneuvering box which, in FIG. 1, is divided by dash dotted lines and contains all necessary means for controlling and blocking the reversing and fuel supply members.
  • This maneuvering box contains a maneuvering shaft 1 on which is fixed a disc 2. This disc is adapted to be blocked by a member 3, co-operating with the fuel supply, as well as by a catching member 4, which is adapted to co-operate with the reversing mechanism.
  • This disc 2 is provided with two notches 2a and 2b, respec tively, arranged in such a manner that they, when the maneuvering shaft 1 is in a certain position only, will correspond with the blocking member 3 and the reversing catch 4, respectively.
  • the part 4 contains a slide 5 having two recesses 6 and 7, spaced by an intermediate portion 8. Each recess and the portion has a breadth somewhat exceeding the thickness of the disc 2 and they will during displacement of the slide one after the other be brought into co-operation with the disc.
  • position I will be utilized to indicate that recess 6 is opposite to disc 2
  • position II implies that the intermediate portion 8 has been pushed into the recess 2b of the disc
  • position III is used when the disc corresponds with the recess 7.
  • a yoke 9 is pivoted to one end of slide '5.
  • One arm, 9a, of said yoke is connected to the rod of a piston 10 belonging to a reversing cylinder 11.
  • the piston 10 has a stroke, which corresponds to a displacement of a slide 5 from position I to position II or from position III to position II.
  • the slide is moved from free positionrecesses 7 or 6, respectively, corresponding with the disc 2-to blocked positionthe intermediate body 8 corresponding with the recess- 2b in the disc.
  • the other arm 9b of the yoke 9 is connected to a part of the reversing mechanism which upon completed reversing displaces the slide from position 11 to position I or position III, respectively, in such a manner that the blocking of disc 2 will be released.
  • any turning of yoke 9 will always occur with one end of said arms as a fixed pivot.
  • the rod of piston 10 continues through reversing cylinder 11 and extends through the end thereof opposite 9a and is connected to a lever 12 by means of which a manual setting of the direction of the rotation of the engine may be effected.
  • the blocking member 3 for the fuel supply (FIGURES '1 and 4) contains a cylinder 13 in which a differential piston 14 is displaceable.
  • the disc 2 is arranged to cooperate with this piston, which to that end is provided with a recess a, which is one end position of the piston 14 permits a turning of the disc but in the opposite position of the piston 14 will block movements thereof.
  • the piston 14 is provided with two plungers 14a and 14b, which are connected by means of a piston rod 15, the plunger 14b having a smaller diameter than the other plunger.
  • a spring 3a will force the piston to the end position in which recess 15a in the piston rod will correspond with the disc 2.
  • a maneuvering lever 16 is connected to the maneuvering shaft 1 in an angularly fixed position, which makes it possible to turn the maneuvering shaft 1 manually in such a manner that it directly will act as a start or fuel control member. In one end position said lever may be swung axially in relation to the shaft and will then influence a three-way valve 17.
  • the maneuvering lever 16- is further designed in such a manner that it can be locked in arbitrary position in relation to a notched segment 16a or the like.
  • the maneuvering shaft 1 may be directly connected to the shaft determining the setting of the fuel pumps of the engine (not shown).
  • the starting air distributor of the engine is denoted by 21.
  • the cams of said distributor will for reversing operation be axially displaced by means of a link 21a, operated by piston 10 in cylinder 11.
  • a reversing mechanism 22 is by Way of links 23 adapted to transfer the result of the reversing movement to arm 9b of yoke 9.
  • air from the selector valve reaches a set of valves, later to be described, governed by the lever BC of the bridge control stand. From the set of valves a first pressure medium circuit reaches the members controlling the start and the reversing of the engine and a second circuit branches off and reaches the fuel supply governing members.
  • Air is conducted to the small diameter plunger 14b of the differential piston 14 and also to a valve 31. Air is also by way of conduit 32 led to two three-way valves 33 and 34, respectively, which are intended to determine operation of the engine AHEAD or ASTERN, respectively. Air furthermore reaches a pressure regulator 35, influencing the fuel supply. Valves 33 and 34 as well as pressure regulators 35are operated by means of an intermediate disc-like member 70, which is worked by means of a maneuvering handle 71 which is the main part of the remote control stand on the ships bridge (BC).
  • BC ships bridge
  • valve 33 for AHEAD air by way of pipe 36 is conducted to a shuttle valve 37, which supplies air to a member 38 sensitive to the initial movements of the engine.
  • This member contains a piston 39, which when subjected to air pressure depresses a contact member 40 to coeoperate witha rotating part 41- in the engine.
  • a contact member 40 to coeoperate witha rotating part 41- in the engine.
  • valves 42 and 43 respectively (say valve 42).
  • From conduit 36 air is further distributed to said valve 42 and to one end of the reversing cylinder 11. If the engine has not begun to rotate valve 42 remains closed.
  • piston 10 already is in a position for AHEAD, no movement of piston 10 will occur and air may thus pass through the outlet 11 at the middle portion of cylinder 11. From this it is conducted by way of pipe 43 to a second shuttle valve 4-4. This is mechanically actuated from a cam 45 arranged on the maneuvering shaft 1 to deaerate the suc ceeding parts of the system when the maneuver is completed.
  • the pumps operate the fuel pumps 62, one for each engine cylinder, which feed the fuel oil to injector 63 mounted in the cylinder head.
  • the pumps are of the known type, where the plunger is provided with an oblique recess in its side wall for cooperation with a pressure relief outlet.
  • a turning of the plunger implies a change of the eifective stroke of the fuel pump. This turning is brought about by a rod 64, which is a direct elongation of maneuvering shaft 1 or is connected thereto by means of suitable gear-
  • the speed governor 2i) and the starting air distributor 21 are mounted on a shaft 65, which also is driven by the crank shaft, but in a fixed relation thereto. This shaft may be the same as shaft 41.
  • a pipe 48 leads to valve 49 which will be operated by the cams of starting air distributor 21 in positions suitable for the direction of rotation.
  • valve 49 which will be operated by the cams of starting air distributor 21 in positions suitable for the direction of rotation.
  • Valve '31 is connected to the large diameter plunger of the differential piston 14. When air is supplied thereto the piston will be displaced to the right whereby recess 15a on the piston rod will correspond with 'disc 2 to release the latter.
  • Pressure regulator 35 operated by the maneuvering handle at BC, permits a pressure impulse to pass by way of pipe 52 to the cylinder 53. This impulse is proportional to the position of the maneuvering lever 16 and corresponds to a certain number of revolutions. Cylinder 53 is mounted upon and co-operates with the hydraulic speed governor 20 for operating link 18.
  • valve 34 will instead be influenced by the maneuvering handle and air reaches shuttle valve 37 from the opposite side as well as valve 43. After completed reversing, air also reaches shuttle valve 50. By way of pipe 54, air is further led to the other side of the cylinder 11, whereby piston 10 tends to move to the right (according to the drawing). This can, however, only take place if the disc 2 on shaft 1 is brought in such a positionfuel supply completely out ffthat the notches of the disc 2a, 2b correspond to the position of slide 5 and differential piston 14. During a displacement of piston the outer end of arm 9b of the yoke 9 will serve as a fixed pivot center.
  • the stroke of piston 10 will correspond to a displacement of slide 5 from one position to the next, that is from free position to locked position.
  • air from pipe 54 may pass through an outlet at the intermediate portion of the cylinder 10 to open valve 29, in such a manner that on the one hand, starting valve 30 will open and on the other hand, cylinder 58 is caused to operate the reversing mechanism at cam shaft 59.
  • the reversing movement of this shaft is, as above described, transferred by a link 23 to arm 92) of the yoke, whereby slide 5 will be displaced one position further to the right (according to the drawing) and the blocking of disc 2 is released. Thereafter, fuel supply may be brought about in the same manner as above described for operation AHEAD.
  • valve 28 is brought to a position for engine room operation, whereby air will reach valve 17. This is opened by handle 16 fitted to the maneuvering shaft 1 due to a slight axial swinging movement. Valve 17 is so located that it may only be operated in one end position of the leverstop po s-ition-that is when the two notches 2a, 2b of the disc correspond with slide 5 and differential piston 14. When valve 17 is opened, air is conducted to shuttle valve 44 in such a manner that the shuttle 60 thereof will be displaced and the air can pass the intermediate outlet of valve 44 to open valve 29, whereupon the engine is started as above described.
  • the direction of rotation of the engine is determined by a lever 12 fitted to piston 10.
  • the levers 12 and 16 must not be directly fitted on the corresponding members 10 and 1, respectively, but can of course be operated by means of links from a place outside the maneuvering box.
  • a pressure medium impulse operated maneuvering mechanism for an internal combustion engine including a first circuit to start and, when necessary, reverse the engine as well as a second circuit for determining the fuel supply thereto a maneuvering shaft adapted to be turned in relation to the magnitude of the fuel supply a disc fixed on said shaft having first and second notches in its periphery a catching member in the first (reversing) circuit adapted to cooperate with the first notch in the disc and containing an axially displaceable slide having two recesses spaced by an intermediate portion and a blocking member in the second (fuel supply determining) circuit adapted to cooperate with the second notch in the disc and containing an axially displaceable slide having one recess.
  • a maneuvering mechanism in which the second circuit includes a valve operated by the initial turning of the engine and adapted to release an impulse to the blocking member after a certain delay.
  • a maneuvering mechanism in which the middle part of a yoke is pivotally connected to one end of the slide in the catching member a pressure medium operated cylinder in the first circuit arranged parallel to the catching member and having a piston connected to one end of the yoke and links to connect the other end of the yoke to a reversing mechanism mounted on the engine. 4.
  • a maneuvering mechanism in which the middle part of a yoke is pivotally connected to one end of the slide in the catching member, said maneuvering mechanism further including a pressure medium operated cylinder in the first circuit arranged parallel to the catching member and having a piston connected to one end of the yoke links connecting said end of the yoke to a starting air distributor of the engine, and
  • a maneuvering mechanism in which the slide in the blocking member is designed as a differential piston with two plungers acted upon by impulses in the second circuit and also by a spring adapted to bring the recess in the slide into position for cooperation with the disc when the cylinder is relieved of pressure.
  • a maneuvering shaft adapted to be turned in relation to the magnitude of the fuel supply
  • a disc fixed on said shaft having first and second notches in its periphery a catching member in the first (reversing) circuit adapted to cooperate with the first notch in the disc and containing an axially displaceable slide having two recesses spaced by an intermediate portion a yoke pivotally connected to one end of the slide in the catching member a pressure medium operated cylinder in the first circuit arranged parallel to the catching member and having a piston connected to one end of the yoke links connecting that end of the yoke to a starting air distributor of the engine links connecting the other end of the yoke to a reversing mechanism mounted on the engine a blocking member in the second (fuel supply determining) circuit cooperating with the second notch in the disc and containing
  • a maneuvering mechanism containing a selector valve for interrupting the pressure medium flow to the first and the second circuits, respectively, and means for governing the engine by directly operating the catching member and the maneuvering shaft, respectively.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Interface Circuits In Exchanges (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
US551716A 1965-06-09 1966-05-20 Maneuvering mechanism for reversible internal combustion engines Expired - Lifetime US3359720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7541/65A SE301899B (enrdf_load_stackoverflow) 1965-06-09 1965-06-09

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US3359720A true US3359720A (en) 1967-12-26

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US551716A Expired - Lifetime US3359720A (en) 1965-06-09 1966-05-20 Maneuvering mechanism for reversible internal combustion engines

Country Status (6)

Country Link
US (1) US3359720A (enrdf_load_stackoverflow)
DE (1) DE1526479C3 (enrdf_load_stackoverflow)
GB (1) GB1085336A (enrdf_load_stackoverflow)
NL (1) NL6607942A (enrdf_load_stackoverflow)
NO (1) NO115769B (enrdf_load_stackoverflow)
SE (1) SE301899B (enrdf_load_stackoverflow)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Also Published As

Publication number Publication date
NL6607942A (enrdf_load_stackoverflow) 1966-12-12
GB1085336A (en) 1967-09-27
NO115769B (enrdf_load_stackoverflow) 1968-11-25
DE1526479A1 (de) 1970-04-02
DE1526479B2 (de) 1974-06-06
SE301899B (enrdf_load_stackoverflow) 1968-06-24
DE1526479C3 (de) 1975-03-06

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