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7950358 Eight-stroke engine with coordination pressure management system  
The present invention provides a coordination pressure management system for raising the maximum operational range of the eight-stroke engine; said coordination pressure management system includes...
7950357 Method for operating an internal combustion engine and an internal combustion engine  
An engine comprises a power cylinder having a power chamber, a compression cylinder having a compression chamber and a flow-through chamber connected with the compression chamber when a...
7905221 Internal combustion engine  
An engine block is disclosed in one embodiment having a cylinder shape bore, which forms the outside wall surface of a cylindrical air chamber. Radially outwards from the cylindrical air chamber...
7905204 Internal combustion engine and method with improved combustion chamber  
Constant pressure internal combustion engine having compression and expansion chambers of variable volume, an elongated combustion chamber of substantially constant volume between the compression...
7832368 Opposite radial rotary-piston engine of Choronski  
A two-stroke opposite radial rotary-piston engine is proposed, comprising a block including sleeves, pairs of pistons disposed within the sleeves and oppositely movable, guiding bearings, a power...
7823547 System and method for split-cycle engine waste heat recovery  
A waste heat recovery system for a split-cycle engine includes a heat exchange unit. An air compressor device is in communication with the heat exchange unit. A waste heat input receives waste...
7810459 Split-cycle four-stroke engine  
An engine has a crankshaft, rotating about a crankshaft axis of the engine. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such...
7757644 Internal combustion engine and method with improved combustion chamber  
Constant pressure internal combustion engine having compression and expansion chambers of variable volume, an elongated combustion chamber of substantially constant volume between the compression...
7748351 Internal combustion engine and method with improved combustion chamber  
Constant pressure internal combustion engine having compression and expansion chambers of variable volume, an elongated combustion chamber of substantially constant volume between the compression...
7690337 Spark plug location for split-cycle engine  
A split-cycle engine includes separate compression and expansion cylinders connected by a crossover passage. Crossover compression and expansion valves define a pressure chamber between them in...
7637234 Split-cycle engine with a helical crossover passage  
An engine has a crankshaft. A compression piston within a compression cylinder is connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a...
7634988 Internal combustion engine  
An engine block is disclosed in one embodiment having a cylinder shape bore, which forms the outside wall surface of a cylindrical air chamber. Radially outwards from the cylindrical air chamber...
7614369 Reciprocating cylinder engine  
An engine is disclosed having cylinders slidably disposed in an engine block. The cylinders reciprocate, engaging movable pistons at each end. A piston and cylinder end define a combustion...
7588001 Split-cycle four-stroke engine  
An engine has a crankshaft, rotating about a crankshaft axis of the engine. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such...
7571699 System and method for split-cycle engine waste heat recovery  
A waste heat recovery system for a split-cycle engine includes a heat exchange unit. An air compressor device is in communication with the heat exchange unit. A waste heat input receives waste...
7487748 Internal combustion engine and method  
Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression...
7481190 Split-cycle engine with disc valve  
A split-cycle engine with disc valve includes a crankshaft, a power cylinder and a compression cylinder. A gas crossover passage interconnects the compression cylinder and the power cylinder. An...
7451727 Internal combustion engine and method for the operation thereof  
An engine comprises a working cylinder provided with a piston, a preignition chamber provided with a spark plug and a combustion chamber which are connected to a compressor cylinder by channels....
7434551 Constant temperature internal combustion engine and method  
Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression...
7389755 Tandem-piston engine  
The piston rod of the tandem-piston engine was modified to include a crosshead that slides in a crosshead guide machined into the lower part of the charger piston for better lateral support. The...
7383798 Highly efficient two-stroke double compression combustion engine  
This invention relates to the field of diesel engines operating on two-stroke cycles. This invention further relates to said diesel engines having piston compressors. Our invention has disclosed a...
7270110 Four stroke internal combustion engine with inlet air compression chamber  
A four-stroke engine with intake air compression chamber. The intake air compression chamber has a pressure responsive displaceable member therein to compress inlet air passively in response to...
7219630 Internal combustion engine with regenerator, hot air ignition, and naturally aspirated engine control  
An internal combustion engine and method is disclosed wherein separate compression and power cylinders are used and a regenerator or pair of regenerators is mounted between them to provide heat...
7201156 Thermal transfer internal combustion engine  
A thermal transfer internal combustion engine with an air transfer cylinder located between a pair of power cylinders. The transfer cylinder has an intake valve and two transfer valves alternately...
7121236 Split-cycle engine with dwell piston motion  
A method for decelerating an expansion piston of an engine is presented. The engine includes an expansion piston slidably received within an expansion cylinder and operatively connected to a...
6994057 Compression ignition engine by air injection from air-only cylinder to adjacent air-fuel cylinder  
The internal combustion engine relies on air injection for ignition instead of Otto cycle spark or Diesel cycle fuel injection. Cylinder pairs are connected by a cylinder-connecting valve, which...
6899061 Compression ignition by air injection cycle and engine  
The herein disclosed Compression Ignition By Air Injection (CIBAI) cycle and internal combustion engine has following advantages over Otto and Diesel cycles: higher thermal efficiency and...
6880501 Internal combustion engine  
An internal combustion engine that has a pair of cylinders each having a reciprocating piston connected to a crank shaft by a connecting rod. One of the cylinders is adapted for an air and fuel...
6880502 Split four stroke engine  
An engine includes a crankshaft, rotating about a crankshaft axis of the engine. A power piston is slidably received within a first cylinder and is operatively connected to the crankshaft via...
6874454 Two-stroke cycle for internal combustion engines  
A two-stroke cycle is applicable to classical internal combustion engines (piston-rod-crankshaft) as well as to engines with a two-sided piston. At least one pair of cylinders of which one is a...
6668769 Two stroke hybrid engine  
A high efficiency two stroke hybrid engine includes a piston engine driving a trochoidal rotor compressor which compresses air injected into a combustion chamber as the piston approaches top dead...
6606970 Adiabatic internal combustion engine with regenerator and hot air ignition  
An internal combustion engine and method is disclosed wherein a separate compression cylinder and an adiabatic power cylinder are used and a regenerator or pair of regenerators is mounted between...
6601549 Two stroke homogenous charge compression ignition engine with pulsed air supplier  
A two stroke homogenous charge compression ignition engine includes a volume pulsed air supplier, such as a piston driven pump, for efficient scavenging. The usage of a homogenous charge tends to...
6571755 Two-stroke engine  
This invention provides a method of converting a four-stroke reciprocating piston engine into an efficient two-stroke engine breathing through the original overhead valves. This is achieved by...
6543398 High efficiency compression ignition aftertreatment devices for combined use of lean-burn combustion systems and three-way catalysts  
A high efficiency compression ignition after-treatment system of a combustion engine includes a first combustion chamber adapted to reciprocatably receive a first piston assembly and a second...
6536384 Two-stroke internal combustion engine with isolated crankcase  
A two-stroke engine with an isolation chamber. The isolation chamber has a pressure-sensitive wall attached to or slidably mounted within the isolation chamber. The pressure-sensitive wall is...
6467440 Two stroke internal combustion engine  
A two stroke internal combustion engine, comprising one or more power cylinders with intake and exhaust ports and a source of scavenging of the power cylinders, with improvements, including use of...
6415749 Power module and methods of operation  
Herein disclosed is a power module comprising an air compressor chamber, an air supply valve operable to control air flow to the air compressor chamber, a combustion chamber separate from the air...
6318310 Internal combustion engine  
Most internal combustion engines may be optimized for either power or efficiency. A dual mode internal combustion engine may operate in either a power mode or an efficient mode. The dual mode...
6257180 Forced coaxially ventilated two stroke power plant  
An internal combustion engine having two parallel cylinders, namely, an induction cylinder and a power cylinder, whereby the power, ventilation (comprising simultaneous intake and exhaust), and...
6216649 Low emission two-cycle internal combustion engine for powering a portable tool  
A low emission two-cycle internal combustion engine for powering a portable tool is provided. The two-cycle engine comprising a cylinder block containing two parallel cylinders adjacent to each...
6026769 Mechanical direct cylinder fuel injection  
A two-stroke internal combustion engine having at least one cylinder with a combustion chamber defined between the cylinder head and a reciprocating piston, and a carburetor which delivers a rich...
6019075 Air and fuel delivery system for fuel injected engines  
An internal combustion engine has a fuel and air mixing device which utilizes an open bore venturi to draw fuel from the device and deliver a rich fuel and air mixture to a compressor driven by...
5862781 Two-stroke internal combustion engine  
In a two-stroke internal combustion engine with a crank slide mechanism and a plurality of working cylinders which, have bases and are divided by a piston into a lower and an upper cylinder...
5857436 Internal combustion engine and method for generating power  
An internal combustion engine includes a compression cylinder having an air inlet and outlet, a conduit extending from the compression cylinder air outlet, an expansion cylinder of larger diameter...
5785015 Internal combustion engine provided with a system for direct fuel injection with pneumatic assistance  
The disclosed internal combustion engine comprises a single piston compressor (13) associated to each of the combustion chambers (1), said compressor sucking an air/fuel mixture and, due to the...
5755191 Two-stroke internal combustion engine with charging cylinder  
The invention concerns a two-stroke internal-combustion engine with a charging pump, an outlet channel controlled by the main piston being subjected to additional control by the charging-pump...
5638777 Compression or spark ignition four-stroke internal combustion engines having a variable compression ratio enabling high supercharging pressure levels  
An engine including an assembly of at least two cylinders with different displacements and two crankshafts coupled at the same rotational speed via a gear train and a variably timed transmission...
5546897 Internal combustion engine with stroke specialized cylinders  
A multi-cylinder reciprocating piston internal combustion engine is divided into a working section and a compressor section, with the working section supporting the combustion function and the...
5526778 Internal combustion engine module or modules having parallel piston rod assemblies actuating oscillating cylinders  
An internal combustion engine having one or more modules each employing fluidly-communicating, oscillating, power cylinder and air cylinder. The power and air cylinders oscillate about separate,...
Matches 51 - 100 out of 136 < 1 2 3 >