2617 results about "Engine power" patented technology

Method for minimizing driver perceptible drive train disturbances during take-off in a hybrid electric vehicle when maximized power is often desired is disclosed. The method includes sensing an actual state-of-charge (SOC) value of a battery in a hybrid electric vehicle and a traveling velocity of the vehicle during take-off operation. The sensed actual SOC value is compared with a SOC reference value and computing a delta SOC value as a difference therebetween. A velocity-based SOC calibration factor is looked up that corresponds to the traveling velocity of the vehicle. A combination is utilized of the delta SOC value and the SOC calibration factor as a SOC feedback engine speed control instruction to an engine controller of the hybrid electric vehicle. A driver's desired vehicular acceleration is sensed based on accelerator position. Maximum possible engine power generatable at the sensed vehicle speed is determined, as is a required power value from the power train of the vehicle to meet the driver's desired vehicular acceleration. The maximum possible engine power generatable at the sensed vehicle speed is compared with the required power value and computing a delta power train requirement value as a difference therebetween. A velocity-based and accelerator position-based power calibration factor is looked-up that corresponds to the traveling velocity of the vehicle and the accelerator position. A combination of the delta power train requirement value and the power calibration factor is utilized as a power requirement feed-forward engine speed control instruction to an engine controller of the hybrid electric vehicle.

A well service pump system supplies high pressure working fluid to a well. The pump system is a linear design which incorporates a diesel engine, a hydraulic drive gear box, open loop hydraulic Pumps, hydraulic ram cylinders, controls for the hydraulic system hydraulic cylinders, working fluid end cylinders and a coupling to connect the hydraulic cylinders and the working fluid ends. The engine powers the hydraulic system which, in turn, provides hydraulic fluid to operate the hydraulic ram cylinders. Each of the polished rods of the hydraulic ram cylinders is connected axially to a plunger rod end of a working fluid end cylinder. There is no crankshaft or automatic transmission required. The linear design allows for a longer plunger stroke length while still allowing highway transport on a truck or skid.

An aircraft including an airframe having a fuselage which extends longitudinally, and having fixed wings including a main wing, a horizontal tail wing and a vertical tail wing. A propeller-rotor torque transmission has a bevel gear which transmits the rotation of an input shaft simultaneously to a propeller shaft and to a rotor shaft. An engine gearbox supplies the above-mentioned input shaft with rotationalal motive power. The aircraft further includes a propeller collective pitch controller, a rotor collective pitch controller, an engine power controller which controls the output of the above-mentioned engine gearbox for the purpose of changing the rotational speed of the input shaft, and a flight control system having a directional (yaw) control system which controls the flight direction of the aircraft by controlling the positions of the above-mentioned control surfaces.

An engine power extraction control system controls the main propulsion engines and the electrical machines that are coupled thereto to supply an appropriate amount of aircraft thrust and electrical energy to the aircraft. The engines and electrical machines are also controlled so that the propulsion thrust that is generated is split between the various turbines in the main propulsion engines to maintain an adequate surge margin and to minimize residual thrust generation.

In an engine system of a machine having a multi fuel engine system, an energy accumulator is provide to accumulate and store energy when the engine system is in a low engine power usage or low engine load state, and to discharge energy from the energy accumulator when the engine system is in a high engine usage or high engine load state. The energy accumulator may be implemented, for example, in the form of a gaseous fuel accumulator that delivers gaseous fuel to the engine, a hydraulic fuel accumulator that provides pressurized fluid to power a fuel pump, or a battery pack that powers an electric hydraulic pump.

The present invention relates to a diesel engine control system and methods for substantially operating a diesel engine at stoichiometric fuel to air ratios. The system may include a fuel processor which receives instructions for a desired engine output and current operating conditions. The fuel processor may also generate fueling instructions for the cylinders, including: substantially regulating fuel delivery into to a first group of cylinders at or near stoichiometric fuel levels, and substantially disabling fuel injection into to a second grouping of cylinders. The number of cylinders being fueled, and therefore undergoing a combustion event corresponds to the desired engine output. This may be calculated by dividing the desired output by the power provided by one cylinder operating at substantially stoichiometric fuel levels. The number of cylinders receiving fuel may be varied over a succession of engine revolutions such that the actual average engine power output conforms to the desired output.

A plug-in hybrid vehicle is driven by one or more electric motors powered by a battery system with supplemental electric power provided by a gasoline engine powered generator. A canister, connected by a fuel vapor vent passage, is used to admit and temporarily adsorb fuel vapor from a vehicle fuel tank during refueling. The canister also has a first fuel vapor and air flow passage for venting the canister and introducing ambient air (in the reverse flow direction) for removing vapor stored in the canister during tank refueling. The canister has a second passage for conducting air and purged vapor from the canister to the operating engine. The first and second passages are opened only during engine operation for purging of stored fuel vapor. The first flow passage is selectively opened when the tank is being refueled. The sealed fuel system eliminates diurnal fuel tank vapor generation and canister bleed emissions.

Flying Car, readable aircraft, amphibian, multimode, multifunctional, composite versatile personal transport vehicle with twin, parallel fuselages, hulls, each with inflatable pontoons and/or wheels below and a cabin. Combined, aircraft, airplane, aeroplane, flying, air, aerial, airborne vehicle with variable, folding wings which is convertible via automatic transformation to a land vehicle and to a sea vessel. Two wings are stored between the fuselages. They extend on a system of rails, pivots and counter-rotating, fuselage-mounted arms which then sink flush into the wings' undersides and lock for flight. Upon wing extension and retraction, controls for road transport and flight controls alternately emerge or are stowed inoperably, as needed. Engine power alternately drives a propeller for flight, wheels for road travel and a separate, submersible, marine propeller for water transport.

In one embodiment, a fluid mixture composition is used at least in part as a fuel for engine-powered transportation vehicles, the mixture comprising an initial concentration of an ammonia-like reductant component and an initial concentration of an ammonia-like carrier component. The mixture may also include an optional third hydrocarbon component, e.g., gasoline or diesel fuel, with modified properties when compared to conventional gasolines or diesel fuels. The mixture is separated into a first and a second stream, with the majority of the first stream being used as a fuel for the engine and at least a first portion of the second stream being injected into the engine exhaust gases to reduce NOx emissions. A second portion of the second stream is aspirated into the engine and a lean air/fuel ratio may be used to improve fuel efficiency.

A portable, combustion engine powered cutting or sawing machine comprises a rear part (1) with a motor housing (3) with a combustion engine (4), an engine block (5) with a crank house, and a front part (2) with an annular blade (30) and a blade holder (31). The blade is provided in/or adjacent to a center blade (37) of the machine. The engine block forms a central body in the machine, including portions of said body on both sides of said center plane, and the blade holder comprises a blade holder chassis (35), which is provided substantially on a first side of said center plane. The blade holder chassis is fixedly connected on one hand with the portion of the engine block, which is located on said first side of the center blade, and on the other hand with a portion which is located on a second, opposite side of the center plane.

A method is disclosed for managing torque distribution in a hybrid electric vehicle powertrain. An engine power estimation is determined for use in obtaining an optimum wheel torque command to attenuate sustained powertrain dynamic oscillations during operation of the vehicle with varying wheel torque and speed.

A method for coordinating engine operation with electrical power extraction in a more electric vehicle provided. The method includes: receiving, by an engine control (120), a command for power output reduction of an engine (140); waiting until a predetermined event occurs to request, by the engine control (120), the power output reduction of the engine (140); reducing or completely switching off, by an electrical energy management system (110), at least one load (180) applied to a high-speed spool generator (146) connected to a high-speed spool (142) of the engine (140); reducing the power output reduction of the engine (140); and shifting power extraction from the high-speed spool generator (146) to a low-speed spool generator (148) connected to a low-speed spool (144) of the engine (140).

Disclosed is a spark-ignition gasoline engine, which comprises control means operable, when an engine operation zone is a high-load operation zone including a WOT region within at least a low speed range, to adjust a closing timing of an intake valve in such a manner as to maintain an effective compression ratio at 13 or more, and retard an ignition timing to a point within a predetermined stroke range just after a top dead center of a compression stroke, wherein the effective compression ratio is calculated based on an intake-valve closing timing defined by a valve lift amount of 1 mm. The present invention can provide a spark-ignition gasoline engine having both a low-cost performance and a high engine-power performance even in a high-load operation zone (particularly WOT region) in a low speed range.

A supercharged internal combustion engine system wherein the supercharger assembly includes an ejector pump driven by high-pressure air for pumping intake air into engine combustion chamber. The ejector pump uses a supersonic driving nozzle and a diffuser, each of which can be provided either with a fixed throat area or with a variable throat area. The system includes means for sensing engine power demand and controlling the supercharging action. Effective supercharging with fast response to demand is achieved even at low engine speeds. During periods of natural engine aspiration the ejector pump can be by-passed to reduce flow impedance. The invention permits increasing power output from small displacement engines. As a result, acceleration and grade ascent capabilities of automotive vehicles with small displacement engines having good fuel economy is improved. The system can be also operated to reduce engine exhaust emissions during cold start.

Portable energy generation systems are disclosed. More particularly, a high-output mobile electrical generator system comprising a radial engine power source providing a highly compact physical format.

Smart instrumentation and monitoring provide primary engine instrumentation for an aircraft. The instrumentation generates real time engine power available data for the entire power regime and flight envelope of the aircraft while engine monitoring functions track, record and output performance usage data, trend data, and flight profile data. Generated data is provided to an aircraft flight manual and mission management module that automatically calculates and generates aircraft operational and performance data needed to safely operate the aircraft. The generated data is selectively displayed on flat-panel cockpit displays and/or electronic kneeboard displays in a graphical format that enhances aircrew situational awareness and permits aircrew members to operate the aircraft with its intended margin of safety.