US3905428A - Fuel stop means for a diesel pile hammer - Google Patents

Fuel stop means for a diesel pile hammer Download PDF

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Publication number
US3905428A
US3905428A US464320A US46432074A US3905428A US 3905428 A US3905428 A US 3905428A US 464320 A US464320 A US 464320A US 46432074 A US46432074 A US 46432074A US 3905428 A US3905428 A US 3905428A
Authority
US
United States
Prior art keywords
fuel
valve
ram
fuel pump
conduit
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
US464320A
Other languages
English (en)
Inventor
Shojiro Nishimura
Masanori Yonehara
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.)
Kobe Steel Ltd
Original Assignee
Kobe Steel Ltd
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 JP4821373A external-priority patent/JPS49134108A/ja
Priority claimed from JP5377173A external-priority patent/JPS503799A/ja
Application filed by Kobe Steel Ltd filed Critical Kobe Steel Ltd
Application granted granted Critical
Publication of US3905428A publication Critical patent/US3905428A/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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • F02D2700/05—Controlling by preventing combustion in one or more cylinders
    • F02D2700/052—Methods therefor
    • F02D2700/056—Methods therefor by interrupting the medium supply

Definitions

  • ABSTRACT A fuel stop means for a diesel pile hammer especially a fuel-stop-means for a diesel pile hammer of the type wherein a fuel pump is driven by a cam mechanism in contact with a ram, wherein the fuel delivered from the fuel pump is injected into a cylinder through a fuel injection valve adapted to open at high pressure.
  • the invention ensures quick stopping of the operation of the diesel pile hammer irrespectively of its operation cycle and improves the safety and efficiency in the work to be done utilizing the diesel pile hammer, whereby the work may be done in a relatively short period of time.
  • the present invention relates to a fuel stop means for a diesel pile hammer and more particularly to a fuelstop-means for a diesel pile hammer of the type wherein a fuel pump is driven by a cam mechanism in contact with a ram.
  • Another object of the present invention is to provide a means ensuring quick stopping of a diesel pile hammer, in safety, without effecting any excessive pressure and stress by quickly stopping the injection of fuel even in a diesel pile hammer of the type wherein the fuel pump driven by the cam mechanism is provided and fuel is injected into the cylinder through a valve set to open at high pressure above the combustion gas pressure.
  • a further object of the invention is to provide a manually operated valve for ensuring quick stopping of a diesel pile hammer.
  • FIG. 1 is an illustrative view of the preferred embodiment of the invention.
  • FIGS. 2 to 4 are side vertical views of various embodiments of the fuel pump, manually operated valve and injection valve of the present invention.
  • the diesel pile hammer is provided with a ram 2 for vertically reciprocating in the cylinder 1.
  • An anvil 3 is provided at the lower portion of the cylinder 1 in opposed position to the ram 2.
  • a suction and exhaust port 8 is provided in the cylinder.
  • a cam mechanism 4 makes contact with the ram 2, and a fuel pump 5 is driven thereby.
  • An injector valve 6 for injecting fuel delivered from the fuel pump 5 is provided between the anvil 3 and the ram 2 within the cylinder.
  • a manually operated valve 7 is provided in the fuel conduit connecting the fuel pump 5 to the injection valve 6 for the purpose of discharging fuel out of the conduit.
  • a valve body 9 for externally sealing the fuel conduit is utilized as a manually operated valve.
  • the fuel pump 5 has a valve body 11 and a plunger 10 vertically slidable in association with the cam mechanism 4.
  • the fuel pump pressurizes the fuel introduced into the intake port 12 from the fuel tank etc. and delivers it to the outlet port 13.
  • Fuel delivered from the outlet port 13 is directed to theinjection valve 6, and is injected from the nozzle 16 when its pressure reaches a high pressure at which the valve body 14 is forced to open against the spring 15.
  • valve body toward the discharge port 17, and a lever for separating the 'valve body 9 from the discharge port 17 against the spring member 18.
  • valve body 9 for externally blocking the fuel conduit permits reduction in the force required to actuate the lever for stopping the pile hammer during or immediately before its fuel injection. It can be said that this action will render easier stopping of the ram on its downward stroke. It should be remembered that the usual diesel pile hammer can be only stopped at the lower dead center.
  • H6. 3 shows another embodiment of the invention wherein a valve body 21 for internally blocking the fuel conduit is used as a manually operated valve, and wherein a fuel pump 5, cam mechanism 4, and injection valve 6 are utilized, as in FIG. 2.
  • the valve body 21 is biased by the spring member 24 to block the discharge port 23 directed to the chamber 22 of the fuel pump and is connected to the lever 25 for thrusting the valve body 21 into the chamber 22.
  • the lever 25 is rocked to discharge fuel within the chamber 22 to quickly stop its fuel injection.
  • the discharge port 23 is directly connected to the chamber 22, such that it may be in parallel with the valve body 11 of the fuel pump 5, whereby difficulty of thrusting the valve body 21 into the fuel conduit may be eliminated and fuel may readily be discharged.
  • FIG. 4 shows still another embodiment wherein both valve bodies 26, 27 one for blocking the fuel conduit from the outside, the other from the inside, are used as manually operated valves, such valves being actuated by a single lever 28.
  • the lever 28 is adapted to actuate the valve body 27 after it would actuate the valve body 26, and is so disposed as to leave a distance I with the valve body 26 when the valve body 27 is in the closed position.
  • the valve body 26 is at first opened to reduce the pressure in the fuel conduit to a slight degree. Thereafter, the valve body 27 is opened to discharge a large amount of fuel into the discharge port 29.
  • valve body 26 which is liable to open at a high pressure as compared with valves for blocking from the inside under a high pressure, and thereafter by opening the valve body 27, which is liable to open at a reduced pressure. Consequently, easy and quick stopping of injection can be obtained.
  • a diesel pile hammer is provided with a fuel pump actu ated by a cam mechanism, it can quickly be stopped without generation of any overpressure or overstress thereby improving the safety and quickness in operation.
  • a manually operated valve provided in a fuel conduit for directing fuel from said fuel pump for discharging fuel therefrom, wherein said manually operated valve comprises a discharge port in communication with said fuel conduit, a valve body for blocking said fuel conduit from the outside thereof, a spring member biasing said valve toward said discharge port, and a lever separating said valve body from said discharge port against said spring member.
  • a fuel stop means for a diesel pile hammer having a vertically slidable ram and an anvil opposite to the ram at the lower portion of a cylinder comprising:
  • a manually operated valve provided in a fuel conduit for directing fuel from said fuel pump for discharging fuel therefrom, wherein said manually operated valve comprises a discharge port in communication with said fuel conduit and arranged in parallel with said valve body of said fuel pump, a valve body for blocking said fuel conduit from the inside, and a lever for thrusting said valve into said fuel conduit against the internal pressure therein.
  • a fuel stop means for a diesel pile hammer having a vertically slidable ram and an anvil opposite to the ram at the lower portion of a cylinder comprising:
  • a manually operated valve provided in a fuel conduit for directing fuel from said fuel pump for discharging fuel therefrom
  • said manually operated valve comprises two valves, one of said valves comprising a discharge port in communication with said fuel conduit, a valve body for externally block ing said fuel conduit, a spring member for biasing said valve toward said discharge port, and a lever separating said valve from said discharge port against said spring member, the other of said valves comprising a discharge port in communication with said fuel conduit and arranged in parallel with said valve body of said fuel pump, a valve for internally blocking said fuel conduit, and a lever for thrusting said valve into said fuel conduit against pressure therein, said two valves being provided with a common lever which operates for causing the internally blocked valve to open after said internally blocked valve would cause the externally blocked valve to

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
US464320A 1973-04-27 1974-04-26 Fuel stop means for a diesel pile hammer Expired - Lifetime US3905428A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4821373A JPS49134108A (enrdf_load_stackoverflow) 1973-04-27 1973-04-27
JP5377173A JPS503799A (enrdf_load_stackoverflow) 1973-05-15 1973-05-15

Publications (1)

Publication Number Publication Date
US3905428A true US3905428A (en) 1975-09-16

Family

ID=39092282

Family Applications (1)

Application Number Title Priority Date Filing Date
US464320A Expired - Lifetime US3905428A (en) 1973-04-27 1974-04-26 Fuel stop means for a diesel pile hammer

Country Status (3)

Country Link
US (1) US3905428A (enrdf_load_stackoverflow)
DE (1) DE2418855B2 (enrdf_load_stackoverflow)
NL (1) NL7405240A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379849A (en) * 1991-04-10 1995-01-10 Russell; James B. Hydraulic ram assemblies
US10590622B2 (en) * 2016-07-18 2020-03-17 Kunshan Construct Engineering Quality Testing Center Drop hammer height adjusting device for high strain detection of pile foundation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740385A (en) * 1950-06-24 1956-04-03 Haage Konrad Hammer and starting device therefor
US2804856A (en) * 1954-12-22 1957-09-03 Syntron Co Diesel hammer starting device
US2936743A (en) * 1956-11-19 1960-05-17 Stirling A Colgate Internal combustion apparatus
US3679005A (en) * 1969-10-24 1972-07-25 Ishikawajima Harima Heavy Ind Diesel hammer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2740385A (en) * 1950-06-24 1956-04-03 Haage Konrad Hammer and starting device therefor
US2804856A (en) * 1954-12-22 1957-09-03 Syntron Co Diesel hammer starting device
US2936743A (en) * 1956-11-19 1960-05-17 Stirling A Colgate Internal combustion apparatus
US3679005A (en) * 1969-10-24 1972-07-25 Ishikawajima Harima Heavy Ind Diesel hammer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5379849A (en) * 1991-04-10 1995-01-10 Russell; James B. Hydraulic ram assemblies
US10590622B2 (en) * 2016-07-18 2020-03-17 Kunshan Construct Engineering Quality Testing Center Drop hammer height adjusting device for high strain detection of pile foundation

Also Published As

Publication number Publication date
DE2418855A1 (de) 1974-11-07
DE2418855B2 (de) 1978-11-02
NL7405240A (enrdf_load_stackoverflow) 1974-10-29

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