A diesel hammer system for driving a pile, comprising a housing, an anvil member supported by the housing, a clamp assembly adapted to connect the anvil member to the pile, and a ram member disposed within the housing. A fuel pump system injects fuel into a combustion chamber defined by the housing,
A diesel hammer system for driving a pile, comprising a housing, an anvil member supported by the housing, a clamp assembly adapted to connect the anvil member to the pile, and a ram member disposed within the housing. A fuel pump system injects fuel into a combustion chamber defined by the housing, anvil member, and the ram member. A coupling system detachably engages the ram member to raise the ram member from an impact position to an upper position, the coupling system comprising a trigger member that, when engaged, causes the coupling system to release the ram member. A trigger projection mounted is on the housing to engage the trigger member to cause the coupling system to release the ram member at the upper position. The diesel hammer further comprises a pre-trigger system comprising a pre-trigger member movable between an extended position and a retracted position.
대표청구항▼
I claim: 1. A diesel hammer system for driving a pile, comprising: a housing; an anvil member supported by the housing; a clamp assembly adapted to connect the anvil member to the pile; a ram member disposed within the housing; a fuel pump system for injecting fuel into a combustion chamber defined
I claim: 1. A diesel hammer system for driving a pile, comprising: a housing; an anvil member supported by the housing; a clamp assembly adapted to connect the anvil member to the pile; a ram member disposed within the housing; a fuel pump system for injecting fuel into a combustion chamber defined by the housing, anvil member, and the ram member; and a coupling system that detachably engages the ram member to raise the ram member from an impact position to an upper position, the coupling system comprising a trigger member that, when engaged, causes the coupling system to release the ram member; a trigger projection mounted on the housing to engage the trigger member to cause the coupling system to release the ram member at the upper position; and a pre-trigger system comprising: a pre-trigger member movable between an extended position and a retracted position; wherein when the pre-trigger member is in the extended position, the pre-trigger member engages the trigger member as the ram member moves from the impact position towards the upper position to cause the coupling system to release the ram member at a pre-trigger position; and when the pre-trigger member is in the retracted position, the pre-trigger member does not engage the trigger member as the ram member moves from the impact position to the upper position; whereby when the pre-trigger member is in the retracted position, the ram member moves from the impact position to the upper position and back to the impact position such that the ram member engages a fuel pump system to cause fuel to flow into the combustion chamber; when the pre-trigger member is in the extended position, movement of the ram member from the impact position to the pre-trigger position and back to the impact position does not cause fuel to be forced out of the fuel chamber and into the combustion chamber. 2. A diesel hammer system as recited in claim 1, further comprising an extension member engaged with the housing member, where the ram member is disposed at least partly within the extension member when the ram member is in the upper position. 3. A diesel hammer system as recited in claim 1, in which at least one opening is formed in the extension member to allow a position of the ram member within the extension member to be seen from outside of the extension member. 4. A diesel hammer system as recited in claim 1, in which the fuel pump system further comprises: a pump housing defining a fuel chamber, a pump piston disposed partly within the fuel chamber, a pump lever that engages the pump piston, a cam member, where an angular position of the cam member acts on the pump lever to determine a position of the pump piston within the fuel chamber and thus determine an effective volume of the fuel chamber; an actuator assembly arranged to change the angular position of the cam member; whereby a fuel pump housing on which indicia are formed; and an indicator fixed relative to the cam member; wherein the indicator extends out of the fuel pump housing adjacent to the indicia to indicate the effective volume of the fuel chamber. 5. A diesel hammer system for driving a pile, comprising: a housing; an anvil member supported by the housing for movement relative to the housing between rest and impact positions; a clamp assembly adapted to connect the anvil member to the pile; a ram member disposed within the housing; a fuel pump system for injecting fuel into a combustion chamber defined by the housing, anvil member, and the ram member; and an extension member engaged with the housing member, where the ram member is disposed at least partly within the extension member when the ram member is in an upper position; whereby movement of the ram member from the upper position into an impact position causes the ram member to act on the fuel pump system to force fuel into the combustion chamber; and as the ram member reaches the impact position, the anvil member moves from the rest position to the impact position. 6. A diesel hammer system as recited in claim 5, in which the fuel pump system comprises: a pump housing defining a fuel chamber, a pump piston disposed partly within the fuel chamber, a pump lever that engages the pump piston, a cam member, where an angular position of the cam member acts on the pump lever to determine a position of the pump piston within the fuel chamber and thus determine an effective volume of the fuel chamber; and an actuator assembly arranged to change the angular position of the cam member; whereby a fuel pump housing on which indicia are formed; and an indicator fixed relative to the cam member; wherein the indicator extends out of the fuel pump housing adjacent to the indicia to indicate the effective volume of the fuel chamber. 7. A diesel hammer system as recited in claim 5, further comprising a coupling system that detachably engages the ram member to raise the ram member from the impact position to the upper position, the coupling system comprising a trigger member that, when engaged, causes the coupling system to release the ram member; a trigger projection mounted on the housing to engage the trigger member to cause the coupling system to release the ram member at the upper position; and a pre-trigger system comprising: a pre-trigger member movable between an extended position and a retracted position; wherein when the pre-trigger member is in the extended position, the pre-trigger member engages the trigger member as the ram member moves from the impact position towards the upper position to cause the coupling system to release the ram member; and when the pre-trigger member is in the retracted position, the pre-trigger member does not engage the trigger member as the ram member moves from the impact position to the upper position. 8. A diesel hammer system as recited in claim 6, in which at least one opening is formed in the extension member to allow a position of the ram member within the extension member to be seen from outside of the extension member. 9. A diesel hammer system for driving a pile, comprising: a housing; an anvil member supported by the housing for movement between rest and impact positions; a clamp assembly adapted to connect the anvil member to the pile; a ram member disposed within the housing; a fuel pump system for injecting fuel into a combustion chamber defined by the housing, anvil member, and the ram member; and an extension member engaged with the housing member, where the ram member is disposed at least partly within the extension member when the ram member is in an upper position; whereby a coupling system that detachably engages the ram member to raise the ram member from the impact position to the upper position, the coupling system comprising a trigger member that, when engaged, causes the coupling system to release the ram member; a trigger projection mounted on the housing to engage the trigger member to cause the coupling system to release the ram member at the upper position; and a pre-trigger system comprising a pre-trigger member movable between an extended position and a retracted position; wherein movement of the ram member from the upper position into an impact position causes the ram member to act on the fuel pump system to force fuel into the combustion chamber; when the pre-trigger member is in the extended position, the pre-trigger member engages the trigger member as the ram member moves from the impact position towards the upper position to cause the coupling system to release the ram member; and when the pre-trigger member is in the retracted position, the pre-trigger member does not engage the trigger member as the ram member moves from the impact position to the upper position. 10. A diesel hammer system for driving a pile, comprising: a housing; an anvil member supported by the housing for movement between rest and impact positions; a clamp assembly adapted to connect the anvil member to the pile; a ram member disposed within the housing; a fuel pump system for injecting fuel into a combustion chamber defined by the housing, anvil member, and the ram member, the fuel pump system comprising a pump housing defining a fuel chamber, a pump piston disposed partly within the fuel chamber, a pump lever that engages the pump piston, a cam member, where an angular position of the cam member acts on the pump lever to determine a position of the pump piston within the fuel chamber and thus determine an effective volume of the fuel chamber; and an actuator assembly arranged to change the angular position of the cam member; whereby a fuel pump housing on which indicia are formed; and an indicator fixed relative to the cam member; and an extension member engaged with the housing member, where the ram member is disposed at least partly within the extension member when the ram member is in an upper position; wherein movement of the ram member from the upper position into an impact position causes the ram member to act on the fuel pump system to force fuel into the combustion chamber; as the ram member reaches the impact position, the anvil member moves from the rest position to the impact position the indicator extends out of the fuel pump housing adjacent to the indicia to indicate the effective volume of the fuel chamber; and at least one opening is formed in the extension member to allow a position of the ram member within the extension member to be seen from outside of the extension member.
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이 특허에 인용된 특허 (4)
White, John L., Diesel hammer systems and methods.
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