14 results about "Four-stroke engine" patented technology

This invention proposes a lubricating oil composition for a four-stroke engine specifically designed for unmanned aerial vehicles (UAVs) and its preparation method. The lubricating oil composition for a four-stroke engine of this invention comprises the following components: (A) a nitrogen-containing organoboron compound; (B) an alkyl diphenylamine; (C) polyisobutylene succinimide; (D) sulfonates and / or sulfurized alkylphenol salts; (E) zinc dialkyl dithiophosphate; (F) dialkyl dithiocarbamate; (G) polymethyl methacrylate; and (H) a base oil in a major amount. The structure of the nitrogen-containing organoboron compound is shown in formula (I) and / or formula (II), with the definitions of each group provided in the specification. The lubricating oil composition for a four-stroke UAV engine of this invention exhibits excellent extreme pressure anti-wear, anti-oxidation, and detergency properties, effectively suppressing the increased wear caused by the high power-to-weight ratio and harsh lubrication conditions of four-stroke UAV engines.

The present invention relates to a method for controlling a five-stroke engine (2) of a vehicle (1), comprising the implementation by data processing means (11) of a computer (10) of steps of: Receiving, from a sensor (3) equipping the vehicle (1), a value of at least a first operating parameter of the five-stroke engine (2); Determining optimized values ​​of at least a second operating parameter of the five-stroke engine (2), using a simulation model of a four-stroke engine (2') calculating the values ​​of at least one parameter representative of the performance of said simulated four-stroke engine (2') as a function of the values ​​of said operating parameters, in which, for each connecting rod (21) of the five-stroke engine (2), the simulated four-stroke engine (2') includes a corresponding virtual connecting rod (21') having a variable length so as to reproduce the operation of the five-stroke engine (2);Application of the determined value(s) of the second operating parameter(s) of said five-stroke engine (2). [Fig. 1a];

The embodiments described herein provide a system and method for using an integrated starter generator (ISG) for electric torque assistance in specific strokes of a 2-stroke or 4-stroke internal combustion (IC) engine (300) with reduced inertial mass compared to a conventional IC engine with inertial mass loading. This is intended to overcome a speed variation problem caused by the engine's lower inertia at low speeds and idle, thus compensating for the crankshaft's lower speed. Furthermore, allowing the 2-stroke and 4-stroke engines to operate with a lean fuel-air mixture improves emissions at low speeds and idle, leading to better control of IC engine emissions.

The invention discloses an air inlet channel oil film generation characteristic adjusting device and method for a rotor engine, the air inlet channel oil film generation characteristic adjusting device comprises a driving module and an execution module, the driving module is internally provided with a steering engine and a microcontroller, and the execution module is composed of a fuel spray impact unit, a universal movement assembly and a fixed support; the universal assembly comprises a short rotating shaft, a circular ring universal shaft and a long rotating shaft, and multi-shaft rotation can be achieved. And the steering engine drives the long rotating shaft to rotate, so that the spraying impact unit is matched with the fixed support through the bevel notch to complete unfolding and folding switching. The device integrated ceramic heating element is used for oil film evaporation control. According to the scheme, the spraying direction and the oil film generation state can be dynamically adjusted according to the working condition of the engine, so that the valveless rotor engine obtains the capability of controlling the quality of an oil film in an air inlet channel according to a valve opening or closing injection strategy of an air inlet channel injection type four-stroke engine, and the combustion efficiency and the emission performance are improved.

The utility model relates to a cavity structure core box based on a ship four-stroke engine, and belongs to the technical field of ship large-cylinder-diameter medium-speed four-stroke engines. The air inlet valve seat ring and the exhaust valve seat ring are arranged at the bottom of the core box shell, the air valve mechanism penetrates through the core box shell and is matched with the air inlet valve seat ring and the exhaust valve seat ring, and the air inlet channel and the exhaust channel are arranged in the core box shell and are connected with the air inlet valve seat ring and the exhaust valve seat ring respectively. The top of the core box shell and the air valve mechanism are connected with an air valve spring pressing mechanism; a plurality of hollow cavities which are not communicated are formed in the core box shell, the hollow cavities are connected through reinforcing ribs, and preset distances are reserved between the hollow cavities and the air inlet channel and between the hollow cavities and the air outlet channel. By arranging the hollow cavity and the reinforcing rib structure, the weight is effectively reduced, and the structural stability is ensured; an integral processing structure is adopted, so that the assembly complexity is reduced; the air passage test of engines with different cylinder diameters is realized through a principle of similar structure and flow.

A double-circulation high-power engine is characterized in that an engine piston is designed into double layers which are overlapped together, a lower-layer piston is a main moving piston, an upper-layer piston is an air suction and exhaust piston, and the upper-layer air suction and exhaust piston slides through a positioning sliding rod and a positioning guide pipe in the center of the main moving piston and can be separated from the lower-layer main moving piston to do up-down relative movement; a through conical round hole is formed in the air suction and exhaust piston, and a conical cover plate capable of moving upwards is arranged on the conical round hole; a main movement piston rotates one circle on a crank arm to complete circulation of a compression stroke and a power stroke, an air suction and exhaust piston moves upwards with the help of a separation executing mechanism when the crank arm of the main movement piston rotates to the range of 155 degrees to 205 degrees to complete circulation of the two strokes of air suction and air exhaust, and therefore the circulation of four strokes is actually completed. And the oil-saving effect of a four-stroke engine is also achieved, and the power is doubled.

The invention belongs to the technical field of engines, and particularly discloses an engine cylinder block structure and an operation method thereof, an engine and a vehicle, the engine cylinder block structure comprises a first cylinder and a second cylinder, a first piston is slidably connected in the first cylinder in the axial direction, and a second piston is slidably connected in the second cylinder in the axial direction; the driving assembly is used for driving the first piston and the second piston to slide; the first cylinder is provided with a sealable first air inlet hole and a sealable first air outlet hole, the second cylinder is provided with a sealable second air inlet hole and a sealable second air outlet hole, and the device further comprises a communicating assembly used for communicating the first air outlet hole with the second air inlet hole; the volume of the first cylinder is larger than that of the second cylinder. By the adoption of the scheme, the advantages of a two-stroke engine and a four-stroke engine can be integrated, the variable compression ratio is achieved, the homogeneous compression ignition acting mode of the engine is achieved, and the heat efficiency and acting efficiency of the engine are improved.

A vehicle having a framework; at least two or more wheels, the at least two or more wheels are into engagement with the framework; a seat engaged with the framework; a four (4) stroke engine; an electric drive system, wherein the electric drive system is configured to propel the vehicle by itself or in tandem with the four (4) stroke engine; at least one or more batteries that is configured to provide power to the electric drive system; at least one or more solar panels, and wherein the solar power device is configured to power the electric drive system and / or charge the at least one or more batteries. The SSR1 Rocket Autocycle includes a 100-amp alternator which is connected to a Drivetrain and charges all battery components on the vehicle when needed and in motion.

Four Stroke Engine Housing

A vehicle having a framework; at least two or more wheels, the at least two or more wheels are into engagement with the framework; a seat engaged with the framework; a four (4) stroke engine; an electric drive system, wherein the electric drive system is configured to propel the vehicle by itself or in tandem with the four (4) stroke engine; at least one or more batteries that is configured to provide power to the electric drive system; at least one or more solar panels, and wherein the solar power device is configured to power the electric drive system and / or charge the at least one or more batteries. The SSR1 Rocket Autocycle includes a 100-amp alternator which is connected to a Drivetrain and charges all battery components on the vehicle when needed and in motion.

To provide a new standard governor capable of optimizing ignition timing after start of an engine and improving combustion efficiency of the engine.SOLUTION: A governor 1 is configured to adjust ignition timing of a two-cylinder, four-stroke engine. The governor 1 comprises: a mounting bolt 15 fixed to a camshaft 21 driven by the engine; and a governor weight 12 attached to the mounting bolt 15, advances the ignition timing of the engine after the engine starts and cancels the advance when the engine stops.SELECTED DRAWING: Figure 1

1. The name of the design product: Four-stroke engine (G139F-1L). 2. The use of the design product: Four-stroke engine used with lawn mower, grass trimmer and other garden and agricultural machinery. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model discloses an air cooling structure for a hydrogen fuel engine. A four-stroke engine is fixedly installed on the top of the gearbox, the right side of the four-stroke engine is communicated with an exhaust pipe, the top of the exhaust pipe is communicated with an air exhaust mechanism, the air exhaust mechanism comprises a turbine, a connecting cylinder, a hollow sleeve and an exhaust pipe, and the top of the exhaust pipe is communicated with the turbine. The front end of the turbine communicates with a connecting cylinder, the front end of the connecting cylinder communicates with a hollow sleeve, the right side of the hollow sleeve communicates with a discharge pipe, and the end, away from the hollow sleeve, of the discharge pipe communicates with a waste gas pipe. Through the arrangement of the air exhaust mechanism, the turbine can be matched with the exhaust pipe to guide waste gas of the four-stroke engine to enter, the waste gas enters the connecting cylinder and is guided into the hollow sleeve, the hollow sleeve is matched with the exhaust pipe to guide the waste gas into the waste gas pipe to be exhausted to the outside, and waste gas exhaust is completed.