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7634979 |
Combustion-powered linear air motor/compressor
A new and improved combustion-powered linear air motor/compressor wherein the new and improved combustion-powered linear air motor/compressor comprises new and improved structure for achieving the...
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7591249 |
Actuation structure for internal fuel cell metering valve and associated combustion tool
In a combustion-powered fastener driving tool employing a fuel cell having an internal fuel metering valve with an axially reciprocating delivery stem, an actuator is provided for causing the...
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7467607 |
Free piston vacuum producing apparatus
The free piston vacuum producing apparatus is an internal combustion device with no piston rod or constraining mechanism attached to the free piston. After fuel ignition the piston is rapidly...
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7455037 |
Gas fastening apparatus having an internal combustion engine and gas induction device connected by a flexible tube
The apparatus includes a handle ( 1 ) with a gas cartridge housing and the gas induction device ( 4 ) designed to be mounted on the cartridge and connected to the engine. The engine and the...
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7426910 |
Engine system having improved efficiency
A propulsion system for a vehicle, comprising of an internal combustion engine, a thermoelectric device in thermal communication with the engine, and a control system for controlling the engine and...
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7383796 |
Internal combustion engine
Embodiments in accordance with the present invention provide an opposed piston, opposed cylinder (OPOC) internal combustion engine. The OPOC engine comprises two cylinders opposed at 180 degrees. A...
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7363887 |
Dynamic mass transfer rapid response power conversion system
The present invention features a rapid fire rapid response power conversion system comprising (a) a chamber having at least one fluid port configured to supply combustible fluid to the chamber, and...
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7318506 |
Free piston engine with linear power generator system
A free piston engine with a linear power generation system with a variable stroke piston and improved construction and control is provided. The free piston engine includes a single double-ended...
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7316116 |
Flywheel combustion engine
A free piston drive combustion engine is provided wherein the piston are reciprocated by the force of combustion in combination with its compressed exhaust gases. A compressed air fuel mixture is...
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7314025 |
Combustion powered fastener-driving tool with interconnected chambers
A combustion tool has a housing with an air intake end and an opposite bumper end, a combustion-powered power source in the housing including a cylinder encircling a reciprocating piston associated...
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7308997 |
Combustion-operated setting tool
A combustion-operated setting tool for driving fastening elements in a constructional component includes a device ( 30 ) for adjusting setting energy applied to a setting piston ( 15 ) axially...
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7308996 |
Gas combustion-type impact device
An injection nozzle 21 for injecting a combustible gas into an annular combustion chamber 10 formed above a driving cylinder 4 is formed so as to face the interior of the combustion chamber ...
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7299963 |
Temperature sensor for combustion nailer
A combustion nailer includes a housing substantially enclosing a combustion engine having a cylinder head, a control unit associated with the housing for controlling operation of the tool, at least...
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7284510 |
Combustion-engined setting tool
A combustion-engined setting tool for driving fastening elements in constructional components includes a member ( 32 ) arranged in the combustion chamber ( 13 ) for generating turbulence of an...
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7284511 |
Combustion-engined setting tool
A combustion-engined setting tool for driving fastening elements in a constructional component end including a combustion chamber ( 13 ) for combusting a gas mixture, an inlet/outlet device ( 40 )...
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7263955 |
Combustion powered linear actuator
The present invention provides robotic vehicles having wheeled and hopping mobilities that are capable of traversing (e.g. by hopping over) obstacles that are large in size relative to the robot...
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7261071 |
Combustion type power tool facilitating cleaning to internal cleaning target
A combustion-type power tool including a housing, a combustion chamber provided in the housing, an ignition plug exposed to the combustion chamber, a cleaning passage communicatable with the...
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7258085 |
Control device for free piston engine and method for the same
A free piston engine has a pair of pistons opposing to each other and movable in a cylinder, to form a combustion chamber between the pistons. A mixed gas of air and fuel is supplied into the...
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7258086 |
Four-cylinder, four-cycle, free piston, premixed charge compression ignition, internal combustion reciprocating piston engine with a variable piston stroke
A four-cycle, four-cylinder, premixed charge compression ignition internal combustion reciprocating free piston engine with a variable piston stroke and a compression ratio that varies as needed to...
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7210430 |
Rapid response power conversion device
An apparatus and method for extracting energy from an internal combustion engine. The internal combustion engine includes a chamber having a primary piston and a secondary piston with a combustion...
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7210431 |
Combustion-type power tool with exhaust gas flow regulating rib
A combustion-type power tool includes a cylinder and a combustion chamber frame disposed to surround the cylinder and movable along the cylinder. A partition wall divides an inner space of an outer...
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7174862 |
Combustion-engined setting tool
A combustion-engined setting tool ( 10 ) for driving in fastening elements such as bolts, nails, and the like in a constructional components includes an inlet/outlet valve arrangement ( 20 ) that...
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7131404 |
Combustion-type power tool having gas canister cooling arrangement
A combustion-type power tool having a cooling arrangement for cooling a gas canister. The tool includes a housing having a gas canister accommodating section in which a gas canister is...
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7100546 |
Crankshaftless internal combustion engine
The engine of the present invention provides the direct transfer of energy from the burning down of fuel in the engine cylinders into shaft power by forcing working liquid through guide devices and...
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7077080 |
Hydraulic synchronizing coupler for a free piston engine
A free piston engine has a pair of opposed cylinders on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each in a respective one of the...
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7066116 |
Valve system for a rapid response power conversion device
An apparatus and method for transferring energy from an internal combustion engine to drive a load. The system includes a rapid response component, a valve system and an actuator. The rapid...
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7047916 |
Two-stroke internal combustion engine with free opposed pistons
A two-stroke internal combustion engine comprises a first cylinder and a second cylinder arranged on a common axis. A first piston pair comprises a first piston and a second piston located in the...
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7032548 |
Piston guides for a free piston engine
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each...
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7021251 |
Combustion type power tool having avoiding unit for avoiding overheating to mechanical components in the tool
A combustion type power tool capable of avoiding damage to seal members and a housing to prolong a service life, and capable of enhancing operability and workability. Temperature elevation of a...
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7011051 |
Hybrid two cycle engine, compressor and pump, and method of operation
The hybrid comprises a two-cycle engine, boosted by the engine power compressor and a hydraulic pump. The pump plunger fastened to engine piston and located coaxially with the compressor piston and...
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6997145 |
Recycler for linear motor
A recycling system for linear motors includes a dual piston within a cylinder housing that is moved from an upper position to a lower position by combustion pressure such that a first portion of...
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6983724 |
Starting a compression ignition free piston internal combustion engine having multiple cylinders
A method for starting a free piston, internal combustion engine includes supplying an air charge to a space in a combustion cylinder, and reciprocating the piston in the cylinder so that the...
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6981474 |
Setting tool
A setting tool for driving fastening elements and including a setting piston ( 20 ) axially displaceably arranged in the hollow chamber ( 14 ) of a piston guide ( 13 ), and a piston stop device (...
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6973898 |
Piston stopper for a free piston engine
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each...
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6971340 |
Compression pulse starting of a free piston internal combustion engine
A method for starting an engine uses an actuator, such as a hydraulic or pneumatic pump-motor or an electric linear alternator-starter to move the pistons to a position where the inlet ports are...
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6971339 |
Electromagnetic servo valve strategy for controlling a free piston engine
A method for controlling a servo for an actuator that applies a force to a piston that reciprocates in a cylinder of a free piston engine having axially-aligned cylinders and a pair of mutually...
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6971341 |
Piston lubrication for a free piston engine
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each...
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6966280 |
Compression pulse starting of a free piston internal combustion engine having multiple cylinders
A method for starting a free piston internal combustion engine that includes a first pair of mutually connected pistons, a second pair of mutually connected pistons, a first piston of each pair...
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6964553 |
Port for a fan chamber
A port is employed for a fan chamber which defines a volume formed by at least one generally continuous vertical wall connecting a horizontal base wall with an opposing horizontal exit wall. Within...
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6959672 |
Fuel injection for a free piston engine
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each...
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6957632 |
Air charging system for an opposed piston opposed cylinder free piston engine
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each...
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6953010 |
Opposed piston opposed cylinder free piston engine
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each...
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6951194 |
Combustion type power tool
A combustion-type power tool capable of preventing a sub-stream of air-fuel mixture from passing through a gap between an electrode and an opposing electrode section, and yet capable of providing a...
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6948459 |
Position sensing for a free piston engine
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each...
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6945202 |
Free piston engine and power generation system therewith
A first piston connected to a first shaft and a second piston connected to a second shaft are supported within a housing by using a first leaf-spring unit and a second leaf-spring unit,...
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6941903 |
System and method for adding air to an explosion chamber in an engine cylinder
An engine includes a piston located in a cylinder, an inlet through which at least a portion of fuel for an ignition and combustion is passed into the cylinder, an outlet through which exhaust from...
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6941904 |
Air scavenging for an opposed piston opposed cylinder free piston engine
A free piston engine is configured with a pair of opposed engine cylinders located on opposite sides of a fluid pumping assembly. An inner piston assembly includes a pair of inner pistons, one each...
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6938588 |
Controllable combustion method and device
A method and device for controllably combusting combustible material, including a combustion device comprising an elongate combustion tube having an inlet section including an inlet for combustible...
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6932031 |
Scavenging system for intermittent linear motor
The intermittent linear motor of this invention incorporates features which enhance the exhaust scavenging and cooling processes, as well as simplifying overall construction including a compression...
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6932030 |
Microgenerator of electrical energy
Described herein is a microgenerator of electrical energy with a high power density, which uses an internal-combustion micromotor with two combustion chambers set opposite to one another, within...
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