178results about "Ignition sparking plugs" patented technology

To provide a sealing system for sealing two components, which enables pressure relief in a region between the two components, a valve arrangement (100) is proposed, comprising a first component (11) with a cylindrical section (17) and a second component (12) with a cylindrical receiving chamber (18) in which the first component (11) is arranged, and comprising at least one valve element (10) which is arranged along a circumference of the first component (11) and seals a first region (14) and a second region (15) of the receiving chamber (18) from each other in a sealing position of the valve element (10), wherein the valve element (10) has a sealing element (13) which is elastically designed such that when a predetermined pressure in the first region (14) is exceeded, the sealing element (13) is moved into an opening position in which the first region (14) is open towards the second region (15).

Invention relates to a fuel ignitor (10) for gaseous fuel comprising a body assembly (12) having a longitudinal axis (A), and a first axial end and a second axial end. The ignitor body assembly (12) comprises a. a prechamber (20) arranged at the first axial end and having a tip, and more than two jet openings (22) arranged to the tip of prechamber (20) at the first axial end, b. a fuel inlet (26) arranged to open into the prechamber (20), c. first cavity (28) arranged to extend from the second axial end of the body assembly (12) to proximity to the prechamber (20), wherein a solenoid actuated gas admission valve unit (29) is arranged in the first cavity (28), d. second cavity arranged to extend from the second axial end of the body assembly (12) to the prechamber (20), wherein an ignition device (31) is arranged in the second cavity in cooperation with the prechamber (20) so as to initiate combustion of fuel in the prechamber (20), when in use, e. cooling channels (32) arranged at the first axial end of the ignitor body assembly (12) arranged in heat transfer connection with the prechamber (20). Invention relates also to a cylinder head - fuel ignitor combination, a gas operated internal combustion engine and method of converting an existing internal combustion piston engine.

An ignition coil assembly with internal diagnostic features that can be used to monitor and evaluate different aspects of an ignition system and provide continuous feedback. The ignition coil assembly may be a coil-on-plug type device that converts low-voltage battery power into high-voltage ignition pulses, and may include several input terminals, an ignition coil with primary and secondary windings, ignition circuitry, an output terminal, a spark plug connector, and a housing. The ignition circuitry includes an ignition operational circuit and an ignition diagnostic circuit, which in turn has a charging evaluation circuit for monitoring a charging phase, a discharging evaluation circuit for monitoring a discharging phase, and a feedback integration circuit for combining outputs into a multiplexed digital signal that can then be sent to an engine control unit (ECU) or the like over a single output terminal.

The utility model belongs to the technical field of motorcycle parts, and discloses a mechanical motorcycle flameout switch structure which comprises a shell, a fixing presser foot is arranged on the inner wall of the bottom end of the shell through a positioning bolt, a wire welding plate is arranged on the outer wall of the fixing presser foot, a fixing block is arranged on the outer wall of the wire welding plate through a reinforcing bolt, and the fixing block is arranged on the outer wall of the fixing presser foot. A gasket is in contact with the outer wall of the reinforcing bolt, a flameout button is rotationally connected to the outer wall of the fixing block, a locking mechanism is arranged on the inner wall of the flameout button, a guide telescopic rod is fixedly connected to the inner wall of the flameout button, and a positioning ball is elastically connected to the inner wall of the flameout button through a reset spring A. Through the arrangement of the flameout button, the operation of speed reduction, braking and flameout can be rapidly completed, and under the arrangement of the locking mechanism, the problem of starting and stopping of the flameout switch caused by mistaken touch can be effectively avoided, and the problem of accidents caused by mistaken touch in the driving process is avoided.

To provide a cylinder heater capable of easily securing an installation place of an electrode for causing an electric current to flow in a cylinder liner.SOLUTION: A cylinder heater includes: an electric power conversion device that converts a DC electric current output from a DC power source into a high-frequency AC electric current; and a transformer having a primary side coil electrically connected to the electric power conversion device and a secondary side coil electrically connected to electrodes provided to correspond to one side and the other side of a cylinder liner, respectively in an axial direction of a cylinder of a cylinder block provided in an internal combustion engine. In the cylinder heater, the electrode on one side is electrically connected to a lower part of the cylinder block and the electrode on the other side is a grounding electrode of an ignition plug.SELECTED DRAWING: Figure 1

A spark plug (38) includes: a spark plug housing (40); a cathode (62) including at least one electrode fork (64) and formed primarily of iridium; and an anode (72) formed at least predominantly of iron or steel. The material composition of the cathode and anode provides extended spark plug service life, especially in high power density applications employing pre-chamber spark plugs. Related methods are also disclosed.

A gasket (20) configured to be positioned between a spark plug and a cylinder head of an internal combustion engine when a threaded section of the spark plug is screwed to the cylinder head. The gasket includes an annular body (23) and projections (25). The annular body is arranged around a threaded relief section of the spark plug where no threads are formed near the threaded section. Each of the projections extends radially inward from the annular body.The annular body, the thread relief section and the threaded section are shaped such that they satisfy a relationship of φb mm ≤ φa mm ≤ φc mm - 0.9 mm, where φa is an inner diameter of a circle (S1) defined to extend along the inner surfaces of the projecting ends (26a) of the inclined sections and centered on an annular center point (Cp) of the annular body, φb is the outer diameter of the thread relief section and φc is the nominal thread diameter of the threaded section.

An engine system (S) includes an internal combustion engine (1) and a control unit (100). The internal combustion engine includes: a main chamber (5) defined by a piston (2), a cylinder (3), and a cylinder head (4); a spark plug (10) mounted on the cylinder head; a secondary chamber tube (11) surrounding the spark plug and protruding downward from the cylinder head; a secondary chamber hole (17) formed in the piston and capable of receiving the secondary chamber tube; and an injector (9) for injecting fuel supplied into the main chamber. The control unit ignites the spark plug when the secondary chamber tube is inserted into the secondary chamber hole, and injects fuel from the injector before the spark plug is ignited and before the secondary chamber tube is inserted into the secondary chamber hole.

An ignition system (10) including an injection member (20) configured to deliver fuel to an ignition zone (140) within a combustion chamber, an ignition element (40) configured to ignite fuel within the ignition zone, and a control unit (60) configured to operate the injection member and the ignition element in a first ignition phase including ignition of a first delivery of fuel provided to the combustion chamber by the injection member and a second ignition phase including ignition of a second delivery of fuel provided to the combustion chamber by the injection member.

An ignition coil includes a joint part that is formed of a tubular elastic body. The join part has a distal end mounted to an ignition plug arranged in a plug hole having a bend, and a proximal end mounted to a coil main body part arranged at a proximal-side entrance part of the plug hole which has a greater inner diameter than the bend. On an outer circumferential surface of a main tubular portion opposed to the bend, there are formed first ribs each extending along an axis of the joint part. On an outer circumferential surface of a proximal-side tubular portion, there are formed second ribs each extending along the axis of the joint part. When viewed along the axis of the joint part, a maximum value of a first rib diameter and a maximum value of a second rib diameter satisfy the relationship of d2 > d1.

An engine ignition system, an ignition method, an engine, a vehicle and a transport, relating to the technical field of vehicle parts. The ignition system comprises: an ignition member, the ignition member being suitable to be mounted in a combustion chamber of an engine; and a heating device, the heating device being connected to the ignition member and used for heating the ignition member to a set temperature, so that fuel sprayed into the combustion chamber is heated and combusted, the set temperature being greater than or equal to the auto-ignition temperature of the fuel in the combustion chamber.

The invention relates to the technical field of low-concentration gas engines, and particularly discloses an ignition device of a high-power low-concentration gas engine and a control method, the ignition device comprises a pre-combustion assembly, an ignition module and an electric control regulating valve; the electric control adjusting valve is used for adjusting the air inlet pressure of the pre-combustion assembly and making the pressure difference between the air inlet pressure and the pressure in the engine pressure stabilizing box constant. The pre-combustion assembly comprises an air inlet assembly, a structural body connected with the air inlet assembly and the ignition module, a nozzle matched with the structural body to form a pre-combustion chamber, a spark plug installed in the structural body and a one-way valve connected with the air inlet assembly and the pre-combustion chamber. The concentration of mixed gas in the pre-combustion chamber can be independently organized, stable ignition of the spark plug is facilitated, and lean combustion with the excess air coefficient larger than 1.6 in the main combustion chamber is achieved; the intake pressure of the pre-combustion chamber is adjusted in real time according to the intake pressure of each cylinder of the engine, and the concentration of mixed gas in the pre-combustion chamber is stable.

The invention provides a multi-mode ignition spark plug, a hydrogen engine ignition method and a related device, and relates to the field of engines, the multi-mode ignition spark plug comprises a first electrode and a second electrode; the first electrode is used for being matched with a ground level structure in the preheating chamber to achieve ignition, and the second electrode is used for being matched with a central electrode hole in the pre-combustion chamber to achieve ignition. The two ignition modes of ignition inside the pre-combustion chamber and ignition outside the pre-combustion chamber can be achieved only through one spark plug, and the cost of the engine and the complexity of the wiring environment of the engine are reduced.

Arrangement of a spark plug (8) in a spark plug sleeve (6) made of a metallic material, the sleeve having a cylindrical receptacle (15) extending eccentrically to its outer mounting section for receiving an insulator body (7) of the spark plug (8), resulting in a wall section (17) of the spark plug sleeve (6) with a greater wall thickness, wherein a ground electrode (34) extending from the end face of the spark plug sleeve (6) is provided at a reduced-diameter end of the receptacle (15) and this ground electrode interacts with a central electrode (31) projecting axially beyond the insulator body (7) to generate a spark gap, wherein a fuel channel (14) extends within the wall section (17) with a greater wall thickness, the outlet of which is provided in the spark plug sleeve (6) adjacent to the spark gap, and wherein a check valve (22) is associated with the fuel channel (14), characterized in thatthat the check valve (22) is inserted into the fuel channel (14) from the outlet side and that a magnetically controlled metering valve is integrated into the spark plug sleeve (6) in conjunction with the check valve (22).

To provide a gas engine which can prevent a leaked fuel gas from catching a fire by a simple constitution.SOLUTION: A gas engine 1 includes: an engine frame 2 including a crank chamber 21 for accommodating a crankshaft 22; a cylinder 3 protruding from the engine frame 2; and a cylinder head 4 attached to the cylinder 3, and including an air supply path 41 and an exhaust path 42. Also, the gas engine 1 includes: a fuel gas valve 51 provided at the air supply pipe 13 connected to the cylinder head 4 or at the cylinder head 4, and controlling the injection of a fuel gas into supply air; a separation cover 8 forming a separation chamber 80 for accommodating the cylinder 3, the cylinder head 4 and the fuel gas valve 51 between the engine frame 2 and itself; and a ventilation fan for sucking air in the separation chamber 80.SELECTED DRAWING: Figure 1

Spark plug for spark-ignition engine Spark plug (4) for spark-ignition engine (2) comprising an electrically insulating body (41), a base (42) delimiting a passive ignition pre-chamber (43), the spark plug (4) further comprising at least one orifice (45) arranged in the base (42) and at least one channel (46) configured to allow the circulation of a flow of drain air (FV) through at least part of the spark plug (4) and at least one means for regulation (47) of the flow of drain air (FV) arranged at the level of the at least one orifice (45) and capable to passively control the circulation of said flow.

An internal combustion engine comprising: at least one cylinder, in which a combustion chamber is formed, the combustion chamber being defined by a side wall of the cylinder, a combustion chamber roof 20 formed by a cylinder head of the cylinder, and a piston movable within the cylinder; and a spark plug having a longitudinal axis, the spark plug having a housing including an end face facing the combustion chamber, an insulator arranged in the housing, a central electrode arranged on the insulator, and at least one ground electrode arranged on the housing and forming at least one ignition gap together with the central electrode, wherein the spark plug is assembled in a hole formed in the cylinder head and is configured to ignite a fuel-air mixture present in the combustion chamber, the ignition gap of the spark plug being arranged outside the combustion chamber.

An ignition system including an injection member configured to deliver fuel to an ignition zone within a combustion chamber, an ignition element configured to ignite fuel within the ignition zone, and a control unit configured to operate the injection member and the ignition element in a first ignition phase including ignition of a first delivery of fuel provided to the combustion chamber by the injection member and a second ignition phase including ignition of a second delivery of fuel provided to the combustion chamber by the injection member.

To provide an auxiliary chamber type internal combustion engine which can form air-fuel mixture having a high fuel concentration around a sub-combustion chamber in a main combustion chamber in which a tumble flow is formed.SOLUTION: An auxiliary chamber type internal combustion engine includes a main combustion chamber in which a tumble flow is formed, a sub-combustion chamber disposed across a partition wall from the main combustion chamber, and a fuel injection valve which injects fuel into the main combustion chamber. The fuel injection valve has a first injection injected toward the tumble flow, and a second injection injected toward the sub-combustion chamber.SELECTED DRAWING: Figure 1

To smoothly introduce a new air-fuel mixture from outside to an auxiliary chamber to improve ignitability in an internal combustion engine having a cap in which the auxiliary chamber accommodating at least a center electrode of an ignition plug is provided.SOLUTION: In an internal combustion engine 1 that includes an ignition plug 2 mounted to a cylinder head 4 and having a center electrode 21 and a cap 3 in which an auxiliary chamber 3s accommodating the center electrode 21 of the ignition plug 2 and communicated with outside via a plurality of nozzle holes 3s1, 3s2 is provided, the nozzle holes 3s1, 3s2 are provided in upper and lower parts of the auxiliary chamber 3s, respectively. A guide part 3g is provided between the nozzle hole 3s1 provided in the upper part of the auxiliary chamber 3s and the nozzle hole 3s2 provided in the lower part of the auxiliary chamber.SELECTED DRAWING: Figure 1

A prechamber device for facilitating a combustion reaction within a combustion chamber of an internal combustion spark-ignition gasoline engine includes a prechamber body, first and second electrodes, an insulation, first and second electrode terminals, a spark plug, and a prechamber head. The prechamber body includes orifices and at least partially contains the combustion reaction. The insulation insulates the first electrode and the second electrode from the prechamber body. The first electrode terminal receives a first amount of power and the second electrode terminal receives a second amount of power from an energy storage device. The first and second electrode terminals deliver the power to the first electrode and the second electrode that generate the electric field. The spark plug generates an ignition arc to initiate the combustion reaction. The prechamber head retains a position of the spark plug and closes off a first end of the prechamber body.

The present invention pertains to a spark plug for an internal combustion engine, comprising a metal outer shell (10) extending in a longitudinal direction (A) from a proximal end (12) to a distal tip end (14) configured to be oriented towards a combustion chamber (34), said outer shell (10) comprising a fixation portion (16) for attachment of the spark plug (1) to a metal sleeve (22) of the internal combustion engine and arranged at a region proximal of the tip end (14), wherein the outer shell (10) furthermore comprises a first contact surface (18) arranged at a region distal of the fixation portion (16) and configured to contact a distal end (24) of the sleeve (22), when the spark plug (1) is attached to the sleeve (22).

A gas engine (1) includes: a frame (2) including a crankcase (21) accommodating a crankshaft (22); a cylinder (3) projecting from the frame (2); and a cylinder head (4) attached to the cylinder (3) and including an intake path (41) and an exhaust path (42). The gas engine (1) further includes: a fuel gas valve (51) that controls injection of a fuel gas into intake air, the fuel gas valve (51) being mounted to an intake pipe (13) connected to the cylinder head (4) or mounted to the cylinder head(4); a separation cover (8) defining a separation chamber (80) between the frame (2) and the separation cover (8), the separation chamber (80) accommodating the cylinder (3), the cylinder head (4), and the fuel gas valve (51); and a ventilation fan that sucks air present in the separation chamber (80).

The invention relates to an arrangement (20) comprising a cylinder head (3) and a spark plug (4) which comprises an opening (46) opening into an internal volume (400) of the spark plug, a hole (45) capable of opening into a combustion chamber (23), and a channel (47) capable of providing a fluid connection between the opening (46) and the hole (45), the arrangement (20) comprising a circuit (5) for supplying a flow of cooling air (FR), making it possible to circulate the flow towards the internal volume (400), a pump (6) and at least one means (7) for regulating the circulation of the flow.

The invention relates to a pre-chamber ignition device (7) for an internal combustion engine (1), comprising: a pre-chamber (8); a plurality of overflow openings (9), via which the pre-chamber (8) is fluidically connected to a combustion chamber (2) of the internal combustion engine (1), and at least part of a mixture comprising fuel and air can be introduced from the combustion chamber (2) into the pre-chamber (8); and a spark plug (10) having an ignition electrode (11), by means of which at least one ignition spark can be generated in the pre-chamber (8) between the ignition electrode (11) and a corresponding ground electrode (12) for igniting the part introduced into the pre-chamber (8) via an overflow opening (9), a spark plug (10) having an ignition electrode (11) and a ground electrode (12) are configured as structurally separated members.

The present invention relates to an ignition device (1) including a pre-chamber element (2) having a main body (3) and a pre-chamber cover (4) forming a pre-chamber (5), the main body (3) having an opening (6) for receiving a spark plug (15) and a fastening portion (9) for placement in an assembly channel (10) in a cylinder head (11) or a cylinder head sleeve (12), and a transfer passage (7) formed on the main body (3) and / or the pre-chamber cover (4), the pre-chamber element (2) having an outlet opening (8) of the transfer passage (7) located at least partially outside a virtual three-dimensional body (23) defined by a geometric projection of a minimum cross section (13) of the assembly channel (10) along a longitudinal axis (14) of the assembly channel (10), and a method for assembling the ignition device (1) including the pre-chamber element (2) and the cylinder head sleeve (12) and / or the cylinder head (11).