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Nozzle having a variable neck section for a spacecraft thruster provided
with a mobile needle
A nozzle of variable throat section for an aerospace vehicle thruster, the nozzle including a cylindrical housing presenting a throat of aperture diameter less...
Feed system and a method of suppressing the POGO effect
A rocket engine feed system, includes a feed circuit including a device for varying a gas volume in the feed circuit to suppress the POGO effect. A method of...
Thrust reverser actuation
A thrust reverser drive arrangement is described for use in driving a thrust reverser cowl for movement relative to first and second guide tracks, the drive...
Noise reduction system
A noise reduction system includes: a microjet ring (16) provided at an exhaust side peripheral edge of a main nozzle of a jet engine, and has a plurality of...
Stirling cycle machines
Stirling cycle machines, including engines and coolers or heat pumps are described. In a disclosed arrangement, there is provided a Stirling cycle engine,...
Cylinder head gasket
The cylinder head gasket includes a gasket layer which presents an inner periphery that surrounds an opening. The gasket layer has a first thickness adjacent...
Internal combustion engine for natural gas compressor operation
This application concerns systems and methods for compressing natural gas with an internal combustion engine. In a representative embodiment, a method is...
Bore bridge cooling passage
A tool and a method of using the tool are provided for forming an engine component. The engine has a block defining a first cylinder and a second cylinder...
Method of monitoring check valves arranged in gas feed lines of a gas
A method of monitoring check valves (6) arranged in gas feed lines (5) of a gas engine includes determining a temperature (S1) according to which a signal...
NOx sensor plausibility monitor
A vehicle includes an engine, an exhaust system, and a controller. The exhaust system includes a selective catalytic reduction (SCR) device, and a rear nitrogen...
Obstacle detection device for vehicle and misacceleration mitigation
device using the same
To prevent a decrease in detection accuracy of an obstacle that occurs when an obstacle detection distance of an infrared beam at the center is set longer than...
Fuel injection apparatus
A fuel injection apparatus includes an injector that injects fuel into a combustion chamber or an intake port of an internal combustion engine; an injection...
Fuel injection device
A fuel injection device is provided with an injection instruction unit that instructs multiple fuel injection valves that inject fuel into respective multiple...
Internal combustion engine control apparatus
An internal combustion engine control apparatus includes a first period in which the target heater applied effective voltage is set to a first target voltage...
Control method for exhaust gas recirculation of hybrid electric vehicle
A control method for exhaust gas recirculation of a hybrid electric vehicle includes detecting a pressure of an intake manifold. A difference between the...
Fault detection and correction in valve assemblies
A method of controlling a valve assembly includes calculating, by a controller of the valve assembly, one or more electrical signals to move a valve element of...
Internal combustion engine and control method therefor
An internal combustion engine includes an Exhaust Gas Recirculation (EGR) system having an EGR valve and a reed valve in an EGR passage, and a control device...
Method and system for engine control
Methods and systems are provided for fuel systems including a gaseous fuel. Fuel rail over-pressure may be addressed by temporarily closing a fuel tank valve of...
Throttle control systems and methods based on pressure ratio
A torque requesting module generates a torque request for an engine based on driver input. A model predictive control (MPC) module: identifies sets of possible...
Control device for internal combustion engine
An internal combustion engine executes EGR and controls the air-fuel ratio based on a detected oxygen concentration in the exhaust. An electronic control unit...
Method of improving performance of system for controlling intermediate
lock position continuously variable...
A method for improving performance of a system that controls a intermediate lock position continuously variable valve may include: obtaining a cam position...
Hand-held power tool with an internal combustion engine
A hand-held power tool has an internal combustion engine provided with a throttle trigger adjustable between an idle position and a full throttle position. The...
Adaptive control of motor vehicle powertrain
A method and system is disclosed for blending between different torque maps of a vehicle in a smooth and progressive manner. Blending is delayed if the vehicle...
Methods and system for fuel ethanol content estimation and engine control
Methods and systems are provided for determining an amount of alcohol in fuel injected into an engine based on outputs from an exhaust gas sensor. In one...
Fuel mixture control system
A control system operative to establish a coordinated composition of gaseous fuel and distillate fuel specifically adaptable for use in high capacity, off-road,...
Firing fraction management in skip fire engine control
In various described embodiments skip fire control is used to deliver a desired engine output. A controller determines a skip fire firing fraction and (as...
System and method for model based and map based throttle position
derivation and monitoring
In one embodiment, an engine system may include an engine control system configured to receive a first pressure signal transmitted from a first pressure sensor...
System having multi-tube fuel nozzle with floating arrangement of mixing
A system includes a multi-tube fuel nozzle. The multi-tube fuel nozzle includes an end cover, a first plate, and multiple tubes. The multiple tubes are disposed...
Effusion cooled shroud segment with an abradable system
A turbine casing assembly, comprising an annular seal segment assembly for surrounding the turbine adjacent to the turbine blades. An abradable coating is...
Aircraft engine anti-icing (EAI) barrier assembly, system and method
An aircraft engine anti-icing barrier assembly having a slip joint subassembly, a barrier subassembly, and a vapor barrier subassembly. The slip joint...
Aircraft turbofan comprising an intermediate ring with simplified
This invention relates to an assembly (100) for an aircraft turbofan comprising a flowpath splitter (40) downstream from which there is firstly a fan flowpath...
Gas turbine exhaust diffuser strut fairing having flow manifold and
suction side openings
A diffuser strut fairing includes a top portion, a bottom portion, a pressure side portion, a suction side portion, an inner surface and an outer surface. The...
Systems and apparatus relating to downstream fuel and air injection in gas
A gas turbine engine that includes: an interior flowpath defined through a combustor and a turbine; an aft frame forming an interface between the combustor the...
Engine cleaning process
A method of using a kit to clean an injection combustion engine while the engine is running comprising removing a vacuum hose attached to the engine, inserting...
Internal combustion engine comprising variable compression ratio mechanism
This internal combustion engine comprising a variable compression ratio mechanism either measures an exhaust temperature or exhaust pressure which varies...
Hybrid drive device
A hybrid drive device having an engine coupling shaft member, a speed change mechanism, a rotating electrical machine, and an engine connecting clutch. A first...
Air-cooled rotary engine
An internal combustion rotary engine includes an air passage configured to allow cool air to flow through the rotor as the rotor moves relative to the housing...
Rotary internal combustion engine with pilot subchamber
A non-Wankel rotary engine having an insert in the peripheral wall of the outer body, the insert being made of a material having a greater heat resistance than...
Double bars and single wheel rotary combustion engine
In my proposed invention two bars of same length and width named as prime mover and follower are incorporated within an eccentric wheel. The follower bar-end is...
System for controlling an air handling system including an electric motor
assisted variable geometry turbocharger
A system and method are provided for controlling an air handling system for an internal combustion engine including a turbocharger having a variable geometry...
Compressor stage of a turbocharger with flow amplifier
An energy recovery system and method is provided for the compressor stage of a turbocharger during surge avoidance operation. The compressor stage includes a...
Methods and system for compensating compressor recirculation sludge
Systems and methods for compensating for deposits that may accumulate within a compressor recirculation valve positioned in parallel with a turbocharger...
Boost reservoir EGR control
Methods and systems are provided for reducing turbo lag in a boosted engine. A boost reservoir coupled to the engine may be charged with compressed intake air...
Cooling system for charge air cooler
A vehicle cooling system includes a fan, a radiator, a charge air cooler upstream of the radiator, an air conduit supplying air to the charge air cooler, and a...
Intake system for engine
An intake system for an engine is provided. The system includes a chamber room formed in an intermediate section of an intake passage, an intercooler disposed...
Method of estimating duration of auto-ignition phase in a spark-assisted
compression ignition operation
A combustion engine system in one embodiment includes a combustion engine, at least one controllable component operably connected to the combustion engine, at...
Exhaust system structure for improving noise problem
An exhaust system structure includes an exhaust manifold discharging exhaust gas through at least one runner towards an exhaust pipe. A front pipe is connected...
Malfunction diagnosis device for exhaust gas purification device of
internal combustion engine
The invention relates to a malfunction diagnosis device for an exhaust gas purification catalyst of an engine. The device calculates, on the basis of a...
On-board diagnostics system for catalyzed substrate
An on-board diagnostics system for an exhaust system of an internal combustion engine is disclosed. The system comprises a catalyzed substrate having a...
Particulate filter washcoat diagnosis based on exothermic substrate
An exhaust gas treatment system to treat exhaust gas includes a particulate filter, a second temperature sensor and a control module. The particulate filter...