US3500752A - Variable capacity fuel injection pump for fuel combustion operated pile driver - Google Patents

Variable capacity fuel injection pump for fuel combustion operated pile driver Download PDF

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Publication number
US3500752A
US3500752A US736664A US3500752DA US3500752A US 3500752 A US3500752 A US 3500752A US 736664 A US736664 A US 736664A US 3500752D A US3500752D A US 3500752DA US 3500752 A US3500752 A US 3500752A
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US
United States
Prior art keywords
fuel
injection pump
pile driver
pawl
passage
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
Application number
US736664A
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English (en)
Inventor
Helmut Sigle
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.)
Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
Original Assignee
Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
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
Priority claimed from DE19671634327 external-priority patent/DE1634327C3/de
Application filed by Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co filed Critical Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
Application granted granted Critical
Publication of US3500752A publication Critical patent/US3500752A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/12—Drivers with explosion chambers
    • E02D7/125—Diesel drivers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/22—Varying quantity or timing by adjusting cylinder-head space
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion

Definitions

  • the present invention concerns a fuel combustion operable pile driver with a fuel injection pump which is adjustable in conformity with a predetermined deliveryv
  • pile drivers of the above-mentioned type
  • the delivery of the pump per stroke which determines the driving energy is, whenever desired, adjusted in an infinitely variable manner.
  • stepless adjusting devices are known according to which the adjustment is effected by cables, by Bowden wires, or hydraulically.
  • FIGURE 1 diagrammatically illustrates a fuel pump for use in connection with the pile driver.
  • FIGURE 2 further shows the means for adjusting the control member which determines the delivery of the injection pump.
  • the pile driver energy which does not vary in conformity with the linear function relative to each step, is adjusted as linearly as possible, this may be realized according to a further development of the present invention according to which the adjusting device is equipped with a cam affect ing the adjusting element of the pump for varying the delivery thereof. This arrangement is such that the dependency of the pile driver energy from the fuel delivery per pump stroke changes from step to step by the same amount.
  • FIG. 1 shows only diagrammatically the injection pump and the device for moving the adjusting element for the delivery of the injection pump, said device when being adjusted changing the delivery per pump stroke (FIG. 1 and FIG. 2).
  • Fuel passes from a fuel reservoir 11 through a conduit 12 and an inlet passage 13a in the pump housing 13 into the compression chamber proper 13b of the pump and also into an adjacent passage having associated therewith a check valve 14 set for a certain pressure.
  • a cylinder 13f which forms the continuation of the compression chamber 13b there is reciprocably arranged a plunger 15 adapted to be actuated by a lever 17 pivotally supported by a pivot 18.
  • a spring 27 continuously urges plunger 15 to move outwardly.
  • the fuel displaced by the plunger 15 during its inward movement by lever 17 passes through the check valve 14 and through a conduit 19 to the combustion chamber of the fuel combustion operated driver (not shown) where it is burned for the next driving stroke of the driver.
  • the passage 13c is continued by a passage 13d transverse to the passage 130.
  • a control piston 20 is displaceable in the said transverse passage 13d.
  • Passage 13d is closed toward the outside by a dis placeable stopper 21 which also seals said passage 13d toward the outside.
  • Stopper 21 by means of its inner surface, serves as abutment for the control piston 20. Under the influence of a spring 22 resting against an end face of said stopper 21, the control piston is urged against a shoulder 28 formed by a constriction 13e of the passage 13d.
  • the control piston acts in such a manner that the fuel leaving the reservoir 11 and passing into the chamber 13b and passages 13c, 13a is by means of the displacement of piston 20 to the abutment formed by stopper 21 pressed to a predetermined extent into the passage 13d, and only the remainder is ejected throught check valve 14 as stroke delivery into the conduit 19 leading to the combustion chamber of the pile driver.
  • a different predetermined delivery depending on the displacement of the piston 20 is ejected.
  • the control piston 20 is each time by the spring 22 returned to its starting position when the plunger 15 has 3 freed the inlet passage 13a, in which starting position piston 20 abuts shoulder 28.
  • the arrangement is provided with a pulley 23 which, by means of a rope or cable 24 looped therearound may be turned about its axis between end abutments 23c, 23d in one or the other direction.
  • the circumferential surface of the pulley 23 is furthermore provided with (in this instance), a spiral abutment surface or cam surface 23a so that when the pulley 23 is turned the stopper 21 is pressed inwardly and when turned in the opposite direction, is under the influence of the spring 22 continuously urged outwardly out of the pump housing 13 while engaging the cam surface 23a.
  • a pawl-ratchet mechanism is provided in a central recess of the pulley.
  • This pawl-ratchet mechanism has associated therewith a predetermined number of inwardly directed teeth 23b with shoulders and two pawls 26 pivotably about pivots 25.
  • Each direction of rotation of the pulley 23 has associated therewith one of said pawls.
  • These pawls 26 are in a non-illustrated manner so designed and arranged that when pulling on one strand of the actuating rope 24, the pulley 23 can with one of its teeth be tilted 'below the end of a pawl 26, which end does not extend into the path of movement of the tooth.
  • the pawl 26 may after the passage of this tooth be so pivoted that its mentioned pawl end extends into the path of movement of the next tooth and the latter finally abuts the pawl end.
  • the pawl-ratchet mechanism comprises means by which the respective pawl, when the pull on the rope is briefly interrupted, returns to a position in which its end pivots outwardly off the path of the respective tooth abutting this end, and this tooth can again be moved below the ratchet.
  • the pulley 23 runs about an axis 34 in a housing that is not shown.
  • the pawls 26, having pivot axes 25 firmly established in the housing, are also provided with auxiliary control levers 29. These control levers 29 are swingable at the ends of the pawls 26 about the pivot pins 30 which journal the pawls.
  • the one end of the control levers extends in a nose-like manner into the area of a locking tooth, ratchet or detent 23b, without, however, extending into the path of movement of this detent 23b in rest conditon.
  • control levers project in rest condition of the detent drive on their part likewise in a noselike manner into the area of a locking tooth or detent 23b, whereby in this case the control lever in rest condition extends into the path of movement of these locking teeth 23b.
  • a V-formed bent leaf spring 31 which is held by a pin 32 suitably secured to a housing, presses with the outwardly bent ends 31a thereof against the control levers 29 so that the contact surface 29a of the control levers lies against an opposing contact surface 26a of the control levers.
  • a pin 32 suitably secured to a housing
  • a locking tooth 23b engages upon an inclined ramp 2% of the right control lever 29 and swings the same together with the corresponding control lever about the axis 25 against the urging of the spring 31 in the phantom-drawn position in a space between that in the rest position of the lowermost locking tooth 23b and the left neighboring locking tooth thereof, be cause the locking tooth 23b located below in the drawing has already passed the nose during the beginning of the turning operation.
  • the left neighboring locking tooth then engages upon the swung-in, contact serving end nose of the right pawl 26. Thereby the pulley is turned by one tooth-pitch.
  • pawl-ratchet mechanism A more detailed description of the pawl-ratchet mechanism appears to be superfluous, because pawl-ratchet mechanisms of the type involved are well known as to their construction and operation, and are possible in numerous designs. The specific design of the pawl-ratchet mechanism does not teach the invention proper.
  • a control device which includes: cylinder means communicating with said conduit means and including first abutment means, fiuid operable second plunger means reciprocable in said cylinder means and operable by fuel under pressure in said conduit means, second abutment means adjustably arranged in said cylinder means for limiting the stroke of said second plunger means in said cylinder in one direction thereof, said first abutment means limiting the stroke of said second plunger means in said cylinder in the opposite direction, spring means adjacent said second plunger means and continuously urging the same into abutment with said first abutment means away from said second abutment means, and adjusting means associated with said second abutment means for adjusting the same, said
  • An arrangement according to claim 1, which includes: spring means interposed between said second abutment means and said second plunger means and continuously urging the latter toward said first abutment means.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)
US736664A 1967-06-19 1968-06-13 Variable capacity fuel injection pump for fuel combustion operated pile driver Expired - Lifetime US3500752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671634327 DE1634327C3 (de) 1967-06-19 1967-06-19 Einstellvorrichtung an einer Einspritzpumpe für eine Brennkraftramme

Publications (1)

Publication Number Publication Date
US3500752A true US3500752A (en) 1970-03-17

Family

ID=5683613

Family Applications (1)

Application Number Title Priority Date Filing Date
US736664A Expired - Lifetime US3500752A (en) 1967-06-19 1968-06-13 Variable capacity fuel injection pump for fuel combustion operated pile driver

Country Status (3)

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US (1) US3500752A (en:Method)
BE (1) BE715814A (en:Method)
NL (1) NL150194C (en:Method)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105332809A (zh) * 2015-11-25 2016-02-17 中国船舶重工集团公司第七一一研究所 柴油打桩锤及其燃油系统
CN105351126A (zh) * 2015-11-25 2016-02-24 中国船舶重工集团公司第七一一研究所 柴油打桩锤及其燃油系统的断油装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974851A (en) * 1929-11-23 1934-09-25 Bosch Robert Governor for internal combustion engines
US2301435A (en) * 1941-05-08 1942-11-10 Mercier Jean Injection pump
US2755739A (en) * 1953-07-20 1956-07-24 Lever Brothers Ltd Proportioning pump
US3001092A (en) * 1957-09-25 1961-09-19 Otto R Nemeth Stepper motor
US3022432A (en) * 1958-11-07 1962-02-20 Globe Ind Inc Electromagnetic device
US3198421A (en) * 1963-01-30 1965-08-03 Johnson Service Co Capacity controlled compressed fluid source

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974851A (en) * 1929-11-23 1934-09-25 Bosch Robert Governor for internal combustion engines
US2301435A (en) * 1941-05-08 1942-11-10 Mercier Jean Injection pump
US2755739A (en) * 1953-07-20 1956-07-24 Lever Brothers Ltd Proportioning pump
US3001092A (en) * 1957-09-25 1961-09-19 Otto R Nemeth Stepper motor
US3022432A (en) * 1958-11-07 1962-02-20 Globe Ind Inc Electromagnetic device
US3198421A (en) * 1963-01-30 1965-08-03 Johnson Service Co Capacity controlled compressed fluid source

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105332809A (zh) * 2015-11-25 2016-02-17 中国船舶重工集团公司第七一一研究所 柴油打桩锤及其燃油系统
CN105351126A (zh) * 2015-11-25 2016-02-24 中国船舶重工集团公司第七一一研究所 柴油打桩锤及其燃油系统的断油装置
CN105351126B (zh) * 2015-11-25 2018-01-09 中国船舶重工集团公司第七一一研究所 柴油打桩锤及其燃油系统的断油装置
CN105332809B (zh) * 2015-11-25 2018-06-12 中国船舶重工集团公司第七一一研究所 柴油打桩锤及其燃油系统

Also Published As

Publication number Publication date
NL150194B (nl) 1976-07-15
NL150194C (nl) 1980-03-17
NL6808586A (en:Method) 1968-12-20
BE715814A (en:Method) 1968-10-16

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