Internal combustion engine cylinder head

Engine cylinder head intake port configuration

A cylinder head for an internal combustion engine is disclosed having an intake port geometry configured to reduce fuel puddling and improve fuel atomization. The cylinder head includes a housing having a recess defining a top portion of a combustion chamber. The cylinder head further includes intake and exhaust ports defined by channels extending from the top portion of the combustion chamber to an outer end of the housing. An intake valve is positioned within the cylinder head to control communication of the intake port with the combustion chamber, and an exhaust valve is positioned within the cylinder head to control communication of the exhaust port with the combustion chamber. The intake port further includes a cross-section having a modified D-shape with a single 90 degree corner. The modified D-shape cross-section extends substantially a length of the intake port.

Air flow guide for an internal combustion engine

An air flow guide/diverter is disclosed for mounting to a cylinder head of an internal combustion engine. The air diverter directs cooling air to multiple locations on the cylinder head. The air diverter includes a main diverter shield having a proximal end extending from a cooling source to a distal end extending to the rear of the internal combustion engine. The air diverter includes a first arcuate member attached to the main diverter shield between the proximal end and the distal end of the main diverter shield, and a second arcuate member connected to the main diverter shield near the distal end of the main diverter shield. The air flow guide creates multiple channels of air to provide more efficient cooling with little added cost.

Internal combustion engine cylinder head intake port

Internal combustion engine

AIR FLOW GUIDE FOR AN INTERNAL COMBUSTION ENGINE

An air flow guide/diverter is disclosed for mounting to a cylinder head of an internal combustion engine. The air diverter directs cooling air to multiple locations on the cylinder head. The air diverter includes a main diverter shield having a proximal end extending from a cooling source to a distal end extending to the rear of the internal combustion engine. The air diverter includes a first arcuate member attached to the main diverter shield between the proximal end and the distal end of the main diverter shield, and a second arcuate member connected to the main diverter shield near the distal end of the main diverter shield. The air flow guide creates multiple channels of air to provide more efficient cooling with little added cost. 1. An air diverter for an internal combustion engine comprising:a main diverter shield having a proximal end extending from a cooling source to a distal end extending to a back end of the internal combustion engine;a first arcuate member attached to the main diverter shield between the proximal end and the distal end of the main diverter shield; anda second arcuate member connected to the main diverter shield near the distal end of the main diverter shield.2. The air diverter of wherein the air diverter is attached to a single cylinder of a multi-cylinder engine.3. The air diverter of wherein the first arcuate member has a width less than that of the second arcuate member.4. The air diverter of wherein the first arcuate member directs airflow generally to a center of a cylinder head.5. The air diverter of wherein the airflow is directed across push rod tubes enclosing push rods of the internal combustion engine.6. The air diverter of wherein the push rod tubes extend entirely within a cylinder head of the internal combustion engine.7. The air diverter of wherein the second arcuate member directs airflow across rear air cooling fins of a cylinder head of the internal combustion engine.8. The air diverter of wherein the second arcuate ...

Engine cylinder head push rod tube configuration

A cylinder head and push rod tube configuration for an internal combustion engine is disclosed. The cylinder head includes a first end comprising a recessed rocker arm cavity. The cylinder head also includes a second end opposite the first end and defining an upper end of a combustion chamber. The recessed rocker arm cavity has a lower surface with a pair of push rod tube bores therethrough. The second end of the cylinder head has a pair of push rod tubes positioned in the push rod tube bores between the recessed rocker arm cavity and the second end. An intake port and an exhaust port each extend through the cylinder head to the combustion chamber.

ENGINE CYLINDER HEAD INTAKE PORT CONFIGURATION

A cylinder head for an internal combustion engine is disclosed having an intake port geometry configured to reduce fuel puddling and improve fuel atomization. The cylinder head includes a housing having a recess defining a top portion of a combustion chamber. The cylinder head further includes intake and exhaust ports defined by channels extending from the top portion of the combustion chamber to an outer end of the housing. An intake valve is positioned within the cylinder head to control communication of the intake port with the combustion chamber, and an exhaust valve is positioned within the cylinder head to control communication of the exhaust port with the combustion chamber. The intake port further includes a cross-section having a modified D-shape with a single 90 degree corner. The modified D-shape cross-section extends substantially a length of the intake port. 1. A cylinder head for an internal combustion engine comprising:a housing having a recess defining a top portion of a combustion chamber;an intake port defined by a first channel extending from the top portion of the combustion chamber to an outer end of the housing;an exhaust port defined by a second channel extending from the top portion of the combustion chamber to an outer end of the housing;an intake valve positioned to control communication of the intake port with the combustion chamber; andan exhaust valve positioned to control communication of the exhaust port with the combustion chamber; andwherein the intake port has a cross-section comprising a modified D-shape comprising a single 90 degree corner, the modified D-shape cross-section extending substantially a length of the intake port.2. The cylinder head of wherein the intake port comprises first and second flat surfaces joined to create the 90 degree corner.3. The cylinder head of wherein the intake port comprises a third flat surface joined to the second flat surface to create a chamfered corner thereby providing the modified D-shaped ...

Electronic ignition system for a generator engine

A standby generator includes an alternator to produce electricity for distribution to an electrical system, and an air-cooled internal combustion engine driving the alternator. The air-cooled internal combustion engine includes one or more cylinders, one or more spark plugs each configured to initiate combustion in a corresponding cylinder, and one or more ignition coils each coupled to a respective spark plug of the one or more spark plugs to provide a voltage to the respective spark plug. The standby generator also includes a battery system electrically coupled to the one or more ignition coils to provide power thereto, and a digital ignition module wiring the battery system to each of the one or more ignition coils to control operation of the one or more spark plugs.

Standby generator control and access panel

A control system for a standby generator includes a control box mounted in a standby generator enclosure with a control panel coupled to the control box that is selectively openable to provide access into the control box. One or more fasteners may be mounted to the control panel to selectively hold the control panel closed, and one or more generator control components may be mounted in the control box and operated by the control panel.

Oil drain system for a generator engine

A standby generator having an engine with oil drain tube that facilitates removal of engine oil from the standby generator is disclosed. The standby generator includes an enclosure comprising a plurality of sidewalls, with an opening formed in one of the sidewalls, and an engine positioned within the enclosure. The engine further includes an oil drain and an oil drain tube having a first end coupled to the oil drain and a second end that opens and closes to selectively drain oil from the engine, the oil drain tube being positionable so as to extend out through the opening. The opening in the one of the sidewalls is lower than the oil drain, such that the oil drain tube is positioned with a downward angle when extending from the oil drain and out of the enclosure through the opening.

STANDBY GENERATOR AIR FLOW MANAGEMENT SYSTEM

A standby generator includes a standby generator enclosure having one or more airflow openings, a first air duct and a second air duct each coupled to at least one of the one or more airflow openings, and an engine and an alternator driven by the engine mounted in the enclosure. An engine cooling fan is driven by the engine to force a first stream of cooling air from the first air duct through the engine in a direction opposite the alternator, and an alternator cooling fan is coupled to the alternator and driven by the engine to force a second stream of cooling air from the second air duct through the alternator in a direction opposite the engine. 1. A standby generator comprising: one or more airflow openings, and', 'a first air duct and a second air duct each coupled to at least one of the one or more airflow openings;, 'a standby generator enclosure comprisingan engine and an alternator driven by the engine mounted in the enclosure;an engine cooling fan driven by the engine to force a first stream of cooling air from the first air duct through the engine in a direction opposite the alternator; andan alternator cooling fan coupled to the alternator and driven by the engine to force a second stream of cooling air from the second air duct through the alternator in a direction opposite the engine.2. The standby generator of further comprising one or more engine exhaust pipes operatively coupled to the engine extending therefrom in a direction downstream from the engine cooling fan.3. The standby generator of further comprising:a muffler coupled to at least one of the one or more engine exhaust pipes, anda muffler box surrounding the muffler and having an opening in a flow path of the first stream of cooling air to direct the first stream of cooling air over the muffler.4. The standby generator of wherein the engine cooling fan is mounted to an upstream side of the engine claim 1 , andthe alternator cooling fan is mounted to a downstream side of the alternator.5. The ...

STANDBY GENERATOR ENGINE-FAN-ALTERNATOR CONFIGURATION

A standby generator includes an air-cooled engine having a crankshaft, an alternator driven by the crankshaft to produce electrical power for distribution from the standby generator, and an engine cooling fan operatively coupled to the crankshaft on a side of the engine driving the alternator. 1. A standby generator comprising:an air-cooled engine having a crankshaft,an alternator driven by the crankshaft to produce electrical power for distribution from the standby generator, andan engine cooling fan operatively coupled to the crankshaft on a side of the engine driving the alternator.2. The standby generator of further comprising a shroud positioned around a portion of the crankshaft and comprising a first end mounted to the engine and a second end mounted to the alternator.3. The standby generator of wherein the shroud further comprises an air inlet between the first end and the second end and an air outlet in the first end; andwherein the engine is cooled with air drawn through the air outlet by the engine cooling fan.4. The standby generator of wherein the alternator comprises an alternator cooling fan drawing air through the alternator in a direction opposite the engine.5. The standby generator of further comprising an air duct coupled to a side of the alternator in fluid communication with the alternator cooling fan.6. The standby generator of further comprising a multi-chamber standby generator enclosure comprising a plurality of chambers claim 1 , wherein the engine and the alternator are mounted in separate respective chambers of the plurality of chambers.7. The standby generator of further comprising: one or more exhaust pipes extending from the engine in a direction downstream from the engine cooling fan, and', 'a muffler coupled to at least one of the one or more exhaust pipes; and, 'an exhaust system operatively coupled to the engine, the exhaust system comprisinga heat shield mounted between the muffler and the engine.8. The standby generator of ...

Standby generator alternator adapter with engine cooling air intake

An alternator adapter for a generator engine includes a main body defining an airflow chamber. The main body includes an airflow outlet in a first end of the main body, an engine shaft opening in a second end of the main body opposite the first end, and an airflow inlet between the first end and the second end. The alternator adaptor also includes an engine mount coupled to the first end of the main body around the airflow outlet and aligned with the engine shaft opening, and an alternator mount coupled to the second end of the main body around the engine shaft opening.

BACKPLATE FOR ENGINE-ALTERNATOR COUPLING IN STANDBY GENERATOR

An engine assembly is provided that includes an engine having a crankshaft that is caused to rotate response to a firing of the engine, a backplate affixed to the engine and comprising one or more air flow passages formed therethrough, and an engine cooling fan operatively coupled to the crankshaft so as to be rotated by the crankshaft, the engine cooling fan coupled to the crankshaft on a side of the backplate opposite the engine. The engine assembly also includes a fan cover mounted over the engine cooling fan and secured to the backplate, the fan cover including an opening through which an air flow is provided to the engine cooling. The backplate and the fan cover collectively form an air guide that directs a flow of cooling air generated by the engine cooling fan through the one or more air flow passages of the backplate and to the engine. 1. An engine assembly comprising:an engine having a crankshaft that is caused to rotate response to a firing of the engine;a backplate affixed to the engine and comprising one or more air flow passages formed therethrough;an engine cooling fan operatively coupled to the crankshaft so as to be rotated by the crankshaft, the engine cooling fan coupled to the crankshaft on a side of the backplate opposite the engine; anda fan cover mounted over the engine cooling fan and secured to the backplate, the fan cover including an opening through which an air flow is provided to the engine cooling;wherein the backplate and the fan cover collectively form an air guide that directs a flow of cooling air generated by the engine cooling fan through the one or more air flow passages of the backplate and to the engine.2. The engine assembly of wherein the backplate comprises:a main section having an opening therein through which the crankshaft passes; anda pair of arms extending off from the main section, with each of the pair of arms having formed therein a respective air flow passage of the one or more air flow passages.3. The engine ...

Double-sided oil cooler for use in a generator engine

An oil cooler is disclosed that comprises a base plate including a recessed portion defined by an interior wall and an exterior wall and including an inlet port and an outlet port. The base plate further includes a divider wall positioned in the recessed portion and extending between the exterior wall and the interior wall to separate the inlet port and the outlet port, a plurality of protrusions arranged in the recessed portion to provide a plurality of tortuous flow paths through which oil flows from the inlet port to the outlet port, and a first set of cooling fins formed on a surface of the base plate opposite the recessed portion. A cover plate is attached to the base plate so as to cover the recessed portion and thereby define a cavity to circulate the oil therethrough, the cover plate including a second set of cooling fins formed thereon.

An air flow guide for an internal combustion engine

An air flow guide / diverter is disclosed for mounting to a cylinder head of an internal combustion engine. The air diverter directs cooling air to multiple locations on the cylinder head. The air diverter includes a main diverter shield having a proximal end extending from a cooling source to a distal end extending to the rear of the internal combustion engine. The air diverter includes a first arcuate member attached to the main diverter shield between the proximal end and the distal end of the main diverter shield, and a second arcuate member connected to the main diverter shield near the distal end of the main diverter shield. The air flow guide creates multiple channels of air to provide more efficient cooling with little added cost.

Engine cylinder head intake port configuration

A cylinder head for an internal combustion engine is disclosed having an intake port geometry configured to reduce fuel puddling and improve fuel atomization. The cylinder head includes a housing having a recess defining a top portion of a combustion chamber. The cylinder head further includes intake and exhaust ports defined by channels extending from the top portion of the combustion chamber to an outer end of the housing. An intake valve is positioned within the cylinder head to control communication of the intake port with the combustion chamber, and an exhaust valve is positioned within the cylinder head to control communication of the exhaust port with the combustion chamber. The intake port further includes a cross-section having a modified D-shape with a single 90 degree corner. The modified D-shape cross- section extends substantially a length of the intake port.

Standby generator air flow management system

A standby generator includes a standby generator enclosure having a partition wall separating a first end from an opposite second end of the enclosure, one or more airflow openings, and a first air duct and a second air duct each coupled to at least one of the one or more airflow openings. An engine mounts in the enclosure toward the first end from the partition wall, and an alternator driven by the engine mounts in the enclosure toward the second end from the partition wall. The engine includes an engine cooling fan that faces the first end to drive engine cooling air received from the first air duct toward the first end, and the alternator includes an alternator cooling fan that faces the second end to drive alternator cooling air received from the second air duct toward the second end.

Standby generator air flow management system

A standby generator includes a standby generator enclosure having a partition wall separating a first end from an opposite second end of the enclosure, one or more airflow openings, and a first air duct and a second air duct each coupled to at least one of the one or more airflow openings. An engine mounts in the enclosure toward the first end from the partition wall, and an alternator driven by the engine mounts in the enclosure toward the second end from the partition wall. The engine includes an engine cooling fan that faces the first end to drive engine cooling air received from the first air duct toward the first end, and the alternator includes an alternator cooling fan that faces the second end to drive alternator cooling air received from the second air duct toward the second end.

Backplate for engine-alternator coupling in standby generator

An engine assembly is provided that includes an engine having a crankshaft that is caused to rotate response to a firing of the engine, a backplate affixed to the engine and comprising one or more air flow passages formed therethrough, and an engine cooling fan operatively coupled to the crankshaft so as to be rotated by the crankshaft, the engine cooling fan coupled to the crankshaft on a side of the backplate opposite the engine. The engine assembly also includes a fan cover mounted over the engine cooling fan and secured to the backplate, the fan cover including an opening through which an air flow is provided to the engine cooling. The backplate and the fan cover collectively form an air guide that directs a flow of cooling air generated by the engine cooling fan through the one or more air flow passages of the backplate and to the engine.

Internal combustion engine

Intake air and carburetor heating arrangements for v-twin engines

A V-twin engine having a crankcase and a pair of cylinders defining a V-space therebetween, wherein the V-space is substantially enclosed, and a carburetor is positioned within the V-space. An intake air preheating arrangement supplies heated intake air to the carburetor, and a carburetor heating arrangement heats the V-space and the carburetor which is positioned within the V-space. Each of the foregoing arrangements, used separately or in combination within one another, aids in preventing "freeze-up" of the carburetor during running of the engine in a cold environment.

Internal combustion engine

A twin cylinder engine (50, 300), includes a pair of cylinder members (74a, 74b) mounted to mounting surfaces (72a and 72b) of a crankcase (52), and cylinder heads (96, 324) mounted to the cylinder members. The cylinder members are modular components, which may be pre-assembled with components of the valve train as packaged units before the cylinder members are attached to the crankcase. Each cylinder member rotatably supports a cam gear (156) which extends into the crankcase for driving engagement with the crankshaft (58). The cylinder members may be configured for either side valve-type ("L-head"), or overhead valve-type ("OHV") engines, and the cylinder members may also be used in single cylinder engines.

Double-sided oil cooler for use in a generator engine

A standby generator includes an internal combustion engine, an alternator driven by the internal combustion engine to produce electrical power for distribution from the standby generator, and an adaptor component comprising a first end coupled to the engine and a second end spaced apart from the first end and coupled to the alternator. The adaptor component may be positioned such that the internal combustion engine is on a first side thereof and the alternator is on a second side thereof. An air-cooled oil cooler may be integrated with or affixed to the adapter component and include cooling fins formed on an outer surface thereof, the air-cooled oil cooler fluidly connected to the internal combustion engine to receive heated oil therefrom and return cooled oil thereto.

Electronic ignition system for a generator engine

A standby generator includes an alternator to produce electricity for distribution to an electrical system, and an air-cooled internal combustion engine driving the alternator. The air-cooled internal combustion engine includes one or more cylinders, one or more spark plugs each configured to initiate combustion in a corresponding cylinder, and one or more ignition coils each coupled to a respective spark plug of the one or more spark plugs to provide a voltage to the respective spark plug. The standby generator also includes a battery system electrically coupled to the one or more ignition coils to provide power thereto, and a digital ignition module wiring the battery system to each of the one or more ignition coils to control operation of the one or more spark plugs.

Standby generator control and access panel

A control system for a standby generator includes a control box mountable in a standby generator enclosure, a control panel, one or more linkage mechanisms coupling the control panel to the control box such that the control panel is selectively openable to provide access into the control box, and one or more generator control components mounted in the control box and operated by the control panel.

Standby generator control and access panel

A control system for a standby generator includes a control box mountable in a standby generator enclosure, a control panel, one or more linkage mechanisms coupling the control panel to the control box such that the control panel is selectively openable to provide access into the control box, and one or more generator control components mounted in the control box and operated by the control panel.

Flywheel Assembly

A system for a flywheel assembly for use in conjunction with an internal combustion engine is disclosed. The flywheel assembly includes a flywheel in rotational association with a crankshaft of the internal combustion engine. The flywheel assembly further includes a cooling fan mounted over the flywheel, and capable of rotation therewith. The cooling fan and the flywheel are secured in a constant axial position relative to the crankshaft by virtue of a drive-cup and a retaining nut. Further, the flywheel includes a plurality of integrally formed, intersecting support ribs, for providing excellent dynamic stiffening (e.g., damping) capabilities to the flywheel assembly for substantially reducing and/or eliminating radiated noise.

Intake air and carburetor heating arrangement for v-twin engines

A V-twin engine having a crankcase and a pair of cylinders defining a V-space therebetween, wherein the V-space is substantially enclosed, and a carburetor is positioned within the V-space. An intake air preheating arrangement supplies heated intake air to the carburetor, and a carburetor heating arrangement heats the V-space and the carburetor which is positioned within the V-space. Each of the foregoing arrangements, used separately or in combination within one another, aids in preventing “freeze-up” of the carburetor during running of the engine in a cold environment.