Abstract: A cylinder head includes a hydraulic lash adjuster attachment portion provided with a hydraulic lash adjuster bore in which a hydraulic lash adjuster is inserted; a main oil provided at a position away from the hydraulic lash adjuster bore; a connection oil passage which connects the hydraulic lash adjuster bore and the main oil passage; and a side wall that defines a radially outer portion of the hydraulic lash adjuster bore. The side wall includes a first side wall portion and a second side wall portion that is positioned closer to an opening of the hydraulic lash adjuster bore than the first side wall portion is. A thickness of the second side wall portion is greater than a thickness of the first side wall portion.

Abstract: An engine oil passage structure for an engine contributing to downsizing the engine and achieving protection of an oil passage against external forces is provided. Provided is an oil passage structure for an engine installed in a small vehicle, the engine including an engine body formed of a crankcase and a cylinder block and a cylinder head stacked inclined vehicle frontward on the crankcase, the crankcase, the cylinder block, and the cylinder head being integrally fastened. The oil passage structure includes, near a bent part formed by a case front wall of the crankcase and a cylinder front wall of the cylinder block forming a valley part by an obtuse angle, a right-left direction oil passage extending in a right-left direction along the valley part.

Abstract: The present invention is an internal combustion engine composed of a plurality of cylinders arranged into banks. Located near the mid-point of each bank of cylinders is a section formed with passages that are configured to provide distribution and recovery of cooling and lubrication fluids. This section is located such that the path of these fluids begins and ends at a mid-point so as to provide a shortened path across each half of the bank of cylinders within which the section is located.

Abstract: The oil mist separator includes a separator case, a gas inlet portion, a gas outlet portion, a separating component and a wall portion. The separator case is formed with a gas flow path. The gas inlet portion introduces the blow-by gas into the separator case on one side of the gas flow path. The gas outlet portion discharges the blow-by gas out of the separator case on the other side of the gas flow path. The separating component is disposed in the separator case and located between the gas inlet and outlet portions to separate the oil mist from the blow-by gas when the blow-by gas flows along the gas flow path. The wall portion is erected on the bottom wall in the separator case and faces the gas outlet portion at a position leaning toward the gas outlet portion between the separating component and the gas outlet portion.

Abstract: An engine device including, in a cylinder block thereof, a cylinder bore, a cam chamber accommodating a camshaft, a push-rod chamber accommodating a push-rod, and a tappet holder configured to hold a tappet in a slidable manner, the tappet being configured to transmit the drive force from the camshaft to the push-rod. The tappet holder partitions the cam chamber and the push-rod chamber. A bypass passage communicating the cam chamber with the push-rod chamber is formed between the tappet holder and the cylinder bore.

Abstract: A valve actuating device includes a camshaft, a cam, and a lubricant conducting device. The camshaft has an oil supply duct extending in a longitudinal direction of the camshaft and a discharge orifice extending in a radial direction of the camshaft and in fluid communication with the oil supply duct. The cam is fixedly mounted to the camshaft to rotate with the camshaft, the cam having a contact surface and a lateral wall facing in an axial direction of the camshaft towards the discharge orifice. The lubricant conducting device is arranged to direct oil over the lateral wall of the cam towards the contact surface.

Abstract: A camshaft and methods of installing a camshaft, the camshaft having at least one detachable bearing journal to enable varied camshaft designs to be assembled into an engine.

Abstract: An oil supply path passes through members separate from a cylinder head (4) to supply a lubricant to bearings (73, 74) of camshaft journals. The oil supply path includes an oil supply passage (66) for the camshaft above the camshaft (19, 20), a connection passage (64) for the camshaft between the oil supply passage for the camshaft and an internal passage (61, 62) in the cylinder head (4), and branch oil passages (68) for the camshaft journals. Each branch oil passage branches off from the oil supply passage for the camshaft, and is connected to one of the bearings (73, 74) from above. Each of the branch passages includes a throttle (168) with a smaller cross-sectional flow area than the oil supply passage for the camshaft.

Abstract: The invention relates to a camshaft, especially for motor vehicle engines, comprising a hollow outer shaft (1) and an inner shaft (2) arranged coaxially in the outer shaft (1) and mounted in such a way that it can rotate in relation to the outer shaft (1). Said camshaft also comprises first cams (3a) arranged on the outer shaft (1) in a rotationally fixed manner, and second cams (3b) that are arranged on the outer shaft (1) and fixed to the inner shaft (2). According to the invention, a supporting element (7) is provided on at least one of the end regions of the inner shaft (2), said supporting element projecting past the outer shaft (1) in the radial direction. An outer peripheral surface (8) of the outer shaft (1) and an associated inwardly facing surface (9) of the supporting element (7) form a radial bearing.

Abstract: Systems and methods for operating an engine with deactivating valves are presented. In one example, a groove in a camshaft controls oil flow to a valve operator that selectively activates and deactivates a poppet valve of a cylinder. The groove moves with the camshaft so that oil delivery to the valve operator is timed properly to deactivate and reactivate the cylinder.

Abstract: A oil supply structure of an internal combustion engine, includes: an oil flowing path which is formed to extend along a camshaft vertically above at least one of intake and exhaust camshafts (3a, 3b) of the internal combustion engine, and in which oil flows; an oil supply portion provided on one end side of the oil flowing path, and supplying oil to the oil flowing path; and oil ejection holes aligned along the oil flowing path, provided to be opened vertically downward, and through which the oil of the oil flowing path is ejected toward the camshaft, wherein, in the oil flowing path, a partitioning portion, which extends along the oil ejection holes toward the other end side opposite to the oil supply portion from one end side, and partitions the inside of the oil flowing path, is provided.

Abstract: A container sealing apparatus is provided, comprising a sealing tool having a lower tool half and an upper tool half; a feed lane for transferring one or more containers to and away from means for transferring containers on to the lower tool half of the sealing tool; and a lifting mechanism for moving the lower tool half towards the upper tool half. The container sealing apparatus also comprises an elongate container guide extending along the feed lane and sealing tool to laterally locate containers as they are transported along the teed lane and sealing tool, and control apparatus adapted to adjust the lateral position of at least the part of said container guide extending along said feed lane.

Abstract: Provided is a lubricant feed mechanism for an engine in which space above a cam cap is not used. A lubricant feed mechanism for an engine is configured to feed lubricant through a cylinder head, a camshaft, and a cam cap to a cam of a valve gear. The mechanism includes an oil feed member that is disposed in the cam cap such that an upper end thereof is set at a lower level than an upper end of the cam cap in a height-wise direction and has an oil passage configured to guide lubricant to be fed through the cam cap to the cam.

Abstract: Embodiments in accordance with the present disclosure may provide a camshaft having a central oil passage and a radial passage to supply oil from the central passage to a bearing surface. The camshaft may include a filter disposed within the central passage which may allow oil to pass through the radial passage to the bearing surface, and which may prevent particles larger than a predetermined size to pass to the bearing surface.

Abstract: An engine, including a crankcase, a cylinder body extending upward from the crankcase, a cylinder head coupled to an upper portion of the cylinder body, a cylinder head cover coupled to an upper portion of the cylinder head, and a gasket disposed between the cylinder head and the cylinder head cover. The gasket includes a projection that projects along directions from an inner wall of the cylinder head and from the cylinder head cover toward a camshaft. The projection is located in a cam chain chamber, which is formed in the engine along the cylinder body, the cylinder head and the cylinder head cover, and a cam chamber formed in the engine along the cylinder head and the cylinder head cover. The projection has an oil supply portion disposed in the cam chain chamber and above a cam chain guide guiding a cam chain.

Abstract: An internal combustion engine may include at least one camshaft mounted via at least one bearing with at least one phase adjuster. The at least one bearing may be a rolling bearing. An oil feed ring may surround the camshaft adjacent to the rolling bearing, wherein the oil feed ring may have at least one external annular channel and at least one first radial bore aligned with a second radial bore in the camshaft. An outer diameter of the oil feed ring may be smaller than an outer diameter of the rolling bearing. An oil supply of the at least one phase adjuster may be introduced via an oil gallery defined in a cylinder head through the annular channel through the second radial bore into the camshaft.

Abstract: A cam bearing lubrication structure for an internal combustion engine includes a cylinder head having a cam bearing region, a plug hole for an ignition plug and a plug tube fitted liquid-tight therein. The cam bearing lubrication structure includes an outer periphery oil path bypassing along an outer peripheral face of the plug tube, a main lubricating oil passage extending through the plug hole and formed to connect to the outer periphery oil path and a guide passage formed in and through the cam bearing region to connect a sliding face of the cam bearing region from the outer periphery oil path and supplying lubricating oil to a sliding face of the cam bearing region and a camshaft. In addition, a lubricating oil supplying structure is provided for a valve apparatus for further increasing the oil supply amount to achieve a further increase in the speed of the engine.

Abstract: An oil supply device includes a plurality of hollow cam shafts, cam shaft journals, and a shaft side path. The hollow cam shafts have through holes that pass in a longitudinal direction from interior to exterior thereof. The cam shaft journals are provided on every position at which the through holes are formed. Each of the cam shaft journals has a path connected with an associated through hole and is coupled with a cylinder head. The shaft side path is formed to supply oil into each hollow cam shaft after the oil sequentially passing from an oil pump through an associated cam shaft journal and an associated through hole.

Abstract: A cylinder head of an internal combustion engine comprises a camshaft that is mounted in the axial direction via at least one rolling bearing, wherein the at least one rolling bearing may be formed such that all occurring axial forces may be absorbed via the at least one rolling bearing.

Abstract: An internal combustion engine for a vehicle, such as a motorcycle, includes a crankcase defining a sump, and a lubrication system scavenging oil from the crankcase and supplying oil to the crankshaft and to first and second cylinder heads. The lubrication system includes a pump with housing and rotor, the housing being fixed to the crankcase and the rotor being rotatable around a crankshaft axis and being rotated by the crankshaft. A plurality of oil supply passages extend through the crankcase, potentially including at least one being formed in the crankcase.

Abstract: A pressure accumulator includes a housing having a housing cavity, a piston axially displaceable in the housing cavity between a first final position and a second final position and having a pressure surface which together with a wall of the housing cavity delimits at least partially a reservoir connectable to an ICE consumer in a fluid-conveying manner, an energy store cooperating with the piston, the piston being displaceable against the force of the energy store from the first final position into the second final position in that the reservoir is acted on by pressure using a pressure medium, and a locking device for locking the piston in the second final position. A locking tube is connected to the piston and supported within the housing in an axially shiftable manner, and lockable at an end of the housing facing away from the reservoir with the aid of a locking pin.

Abstract: There is provided a lubricating structure for an internal combustion engine which has a crankcase, a cylinder block, a cylinder head housing a valve driving device, and a cam housing provided on an upper portion of the cylinder head to support an intake-side camshaft and an exhaust-side camshaft, the lubricating structure including: a main oil passage formed in the cam housing; an oil passage formed in an outer wall upper portion of the cylinder head so as to communicate with the main oil passage; and a pipe connection portion formed so as to allow an external oil pipe to be connected to the oil passage from an outside.

Abstract: In an internal combustion engine comprising a plurality of cylinders with at least one cylinder head including inlet channels extending from an inlet flange surface to a cylinder inlet and outlet channels extending from a cylinder outlet to an opening in an outlet flange surface and an oil chamber provided in the cylinder head for supplying lubricant to an actuation device for gas exchange valves, the inlet flange and the outlet flange have flat surfaces which are arranged at an angle relatively to each other so that the surface planes intersect above the cylinder head and the cylinder head, as a result, has an essentially triangular cross-section.

Abstract: In an internal combustion engine comprising a plurality of cylinders with at least one cylinder head including inlet channels extending from an inlet flange surface to a cylinder inlet and outlet channels extending from a cylinder outlet to an opening in an outlet flange surface and an oil chamber provided in the cylinder head for supplying lubricant to an actuation device for gas exchange valves, the inlet flange and the outlet flange have flat surfaces which are arranged at an angle relatively to each other so that the surface planes intersect above the cylinder head and the cylinder head, as a result, has an essentially triangular cross-section.

Abstract: An internal combustion engine, having a camshaft having at least one one-piece thrust plate, which is arranged and captively fixed between a drive element, and a function element, wherein the drive element and the function element are fixedly joined with the camshaft, wherein the thrust plate is in the cylinder crankcase and is an axial bearing plate and includes at least one of a wear reducing coating and a friction reducing coating, and wherein the thrust plate is guided at a radially outer edge in the cylinder crankcase

Abstract: An engine includes a camshaft supported in a housing for rotation about an axis of rotation. A cam gear is attached to one end of the camshaft and includes a first thrust bearing surface. A thrust ring is attached to the cam gear and includes a second thrust bearing surface. A thrust ring retainer is attached to the housing with a plurality of bolts and includes a pair of thrust surfaces trapped between the first thrust bearing surface of the cam gear and a second thrust bearing surface of the thrust ring. The thrust ring retainer also defines a portion of a lubrication connection passage that facilitates pressure equalization among a plurality of lubrication galleries arranged in parallel adjacent the camshaft.

Abstract: A switchable device for supplying at least one consumer of an internal combustion engine with pressure.

Abstract: Embodiments in accordance with the present disclosure may provide a camshaft having a central oil passage and a radial passage to supply oil from the central passage to a bearing surface. The camshaft may include a filter disposed within the central passage which may allow oil to pass through the radial passage to the bearing surface, and which may prevent particles larger than a predetermined size to pass to the bearing surface.

Abstract: An engine assembly includes an engine block, a cylinder head coupled to the engine block and first and second lubrication systems. The first lubrication system includes a first pump in communication with the engine block and providing a first fluid to the engine block. The second lubrication system is isolated from the first lubrication system and includes a second pump in communication with the cylinder head and providing a second fluid to the cylinder head.

Abstract: A vehicle engine includes: a cylinder head; a cam housing fixed to a top of the cylinder head; a cam cap fixed to a top of the cam housing; a camshaft rotatably supported between the cam housing and the cam cap, the camshaft supporting a cam; a rocker arm configured to be pushed by the cam; and a valve configured to operate by being pushed by the rocker arm; and an oil pipe that is formed integrally with the cam cap. Lubricant oil is supplied through the oil pipe to a contact point between the cam and the rocker arm.

Abstract: A pressure accumulator for a camshaft phaser of an internal combustion engine, including a housing that accommodates a piston and forms a cavity fillable with a hydraulic fluid. The cavity is configured as a hole and is closed by a cover on at least one side so as to be fluid-tight, whereby the cover is fastened to the housing by a flanged connection. A method for the production of a pressure accumulator for a camshaft phaser, including a pressure accumulator that forms a cavity, whereby a piston is placed into the cavity, and subsequently, a cover is put in place over the cavity—sealing it off towards the outside—in such a way that a material portion of the housing or of the cover creates such a positive connection between the cover and the housing that the cover is affixed in its position relative to the housing.

Abstract: In an engine equipped with a variable valvetrain including a second cam phase alteration mechanism 31 for altering the phase of second intake cams 12 actuating second intake valves, relative to a crankshaft, the second cam phase alteration mechanism 31 is arranged at an end opposite to an end at which a cam sprocket is provided to receive power from the crankshaft, to be located outside a cylinder head 2, and an actuator cover 40 is fixed to the cylinder head 2 to cover at least a lower portion of the second cam phase alteration mechanism 31.

Abstract: A vehicle engine includes a cylinder head, a cam housing fixed to a top of the cylinder head, a cam cap fixed to a top of the cam housing, a camshaft rotatably supported between the cam housing and the cam cap, the camshaft supporting a cam, a rocker arm configured to be pushed by the cam, and a valve configured to operate by being pushed by the rocker arm. The vehicle engine has an oil pipe that is formed integrally with the cam housing.

Abstract: A device for variably adjusting the valve timing of gas exchange valves of an internal combustion engine which has an input element, an output element and a camshaft. The input element can be brought in a driving connection with the crankshaft of the internal combustion engine. The output element is non-rotationally connected to the camshaft and swivelable in relation to the input element. An axial lateral face of the camshaft rests against an axial lateral face of the output element. A form-locking element on one of the axial lateral faces resting against each other aligns the output element on the camshaft with respect to its circumferential direction and engages in a mating form-locking element of the other component.

Abstract: A cylinder head for an internal combustion engine includes a casting having a number of camshaft support bulkheads. Each of the support bulkheads has a portion of a parent bore bearing for mounting a camshaft. A bulkhead thrust surface is formed in an outer surface of at least one of the support bulkheads. A camshaft is rotatably mounted upon the support bulkheads. The camshaft has at least one thrust bearing member abutting a bulkhead thrust surface which is provided with lubricating oil by means of a radially extending, surface-piercing lubricant distribution channel formed in the bulkhead thrust surface, such that oil flowing in the parent bearing will be caused to be deposited upon the bulkhead thrust surface as well as upon the camshaft thrust surface.

Abstract: An oil pressure control apparatus includes a control valve mechanism being in communication with a pump via a first fluid passage and being in communication with a control apparatus via a second fluid passage, a third fluid passage diverging from the first fluid passage to supply oil to a predetermined portion other than the control apparatus, and a fluid passage dimension regulating mechanism including a movable member provided at the third fluid passage and including an opening for regulating a fluid passage dimension of the third fluid passage. The fluid passage dimension regulating mechanism is in communication with a fourth fluid passage diverging from the second fluid passage and biases the movable member to a side increasing the fluid passage dimension by applying the hydraulic pressure of the fourth fluid passage to the movable member separately from the hydraulic pressure of the third fluid passage.

Abstract: There is provided a lubricating structure for an internal combustion engine which has a crankcase, a cylinder block, a cylinder head housing a valve driving device, and a cam housing provided on an upper portion of the cylinder head to support an intake-side camshaft and an exhaust-side camshaft, the lubricating structure including: a main oil passage formed in the cam housing; an oil passage formed in an outer wall upper portion of the cylinder head so as to communicate with the main oil passage; and a pipe connection portion formed so as to allow an external oil pipe to be connected to the oil passage from an outside.

Abstract: A valve train mechanism of an internal combustion engine including a cylinder head formed with an intake port and an exhaust port, and a camshaft including a valve for opening or closing the intake port and the exhaust port formed in the cylinder head of the engine, a cam mounted to the camshaft so as to be rotated together, and a rocker arm supported on a rocker shaft to be swingable, in which the valve is opened or closed by swinging the rocker arm by rotation of the cam. The rocker shaft is formed with an oil passage, inside the rocker shaft, extending in an axial direction and with an oil outlet communicating with the oil passage and extending in a radial direction of the rocker shaft.

Abstract: A switchable device for supplying at least one consumer of an internal combustion engine with pressure, comprising: a cavity formed inside a camshaft; a first displacement element arranged in the cavity having a first pressure surface which at least partially delimits a first accumulator chamber together with the wall of the cavity; a first energy accumulator which interacts with the first displacement element; a locking mechanism by which the first displacement element can be locked in the second end position; a switching mechanism which can be actuated by an actuator, having a switch element that can be brought into at least two switching positions; a second displacement element arranged in the cavity having a second pressure surface which at least partially delimits a second accumulator chamber together with the wall of the cavity; a second energy accumulator which interacts with the second displacement element; the first accumulator chamber and the second accumulator chamber communicating with each other

Abstract: A four-stroke engine is provided to lubricate driving parts including a crankshaft and valve operating members while circulating oil, using pressure fluctuation in a crank chamber, the pressure fluctuation being caused by reciprocating motion of a piston. A cam driving parts move with rotation of the crankshaft; a driving chamber and a rocker chamber are connected to one another; the rocker chamber is connected to the crank chamber and a gas-liquid separator; the oil accumulated in a tank is sucked up into the crank chamber and circulated through each part of the four-stroke engine; the crank chamber and the driving chamber are connected to one another via a communicating passage and a return passage; and the crank chamber and the driving chamber connected to one another via the return passage communicate with one another only when the piston is located in a vicinity of the top dead center.

Abstract: A camshaft support structure for an internal combustion engine includes a cylinder head, a camshaft, a plurality of bearings, an auxiliary machine drive cam, an auxiliary machine, and a pulsar plate. The plurality of bearings include a terminal bearing supporting the camshaft to be rotatable with respect to the cylinder head about a rotational axis. The auxiliary machine has a plunger provided to be moved forward and backward by the auxiliary machine drive cam. The pulsar plate projects from the camshaft in a radial direction of the camshaft and is provided on an opposite side of the auxiliary machine drive cam with respect to the terminal bearing. The pulsar plate has a second surface facing the terminal bearing in the axial direction. Each of the first surface and the second surface is provided to slidably contact the terminal bearing.

Abstract: An engine assembly may include a cylinder head defining a first bearing surface supporting a camshaft, a bearing cap fixed to the cylinder head and a lubrication rail. The first bearing surface may have a first oil inlet extending therethrough. The camshaft may define an axial bore, a first radial passage and a second radial passage. The first radial passage may extend from the axial bore through an outer circumference of the camshaft and may be in communication with the first oil inlet. The second radial passage may extend from the axial bore through an outer circumference of the camshaft. The bearing cap may be fixed to the cylinder head and include a first oil outlet in communication with the second radial passage. The lubrication rail may include a second oil inlet in communication with the first oil outlet and a first lubrication supply passage aligned with a camshaft lobe.

Abstract: A switchable device for supplying at least one consumer of an internal combustion engine with pressure.

Abstract: A method of forming a cylinder head may include machining an upper surface of a cam tower of the cylinder head to form a generally planar surface. An oil passage may be drilled in the upper surface to provide an oil feed. A bearing bore may be formed in the upper surface of the cam tower. The bearing bore may include a recess having first and second circumferential ends. The oil passage may intersect the first circumferential end.

Abstract: A needle roller bearing (21) as a roller bearing comprises an outer ring (22) formed by connecting a plurality of arc-shaped outer ring members in a circumferential direction, and a plurality of needle rollers (23) arranged along the inner diameter surface of the outer ring (22), and an oil groove (22i) extending in a circumferential direction so as to contain a position opposed to an opening (13e) of an oil path of a housing is formed in the outer diameter surface of the outer ring member.

Abstract: A lubrication apparatus of a fuel pump, which lubricates a tappet and a fuel pump drive cam of the fuel pump, may include a cylinder head having an oil gallery formed therein and a camshaft disposed therethrough, wherein the fuel pump is coupled to the cylinder head, and a penetrating passage penetrating the cylinder head and connected to the oil gallery to supply oil from the oil gallery to the inside of a fuel pump adaptor connected to the fuel pump.

Abstract: A method of purging air from an oil passage in communication with a lifter assembly in an engine assembly may include isolating the oil passage from a pressurized oil source while the lifter assembly is engaged with a base region of a cam lobe to operate the first lifter assembly in the activated mode. The pressurized oil may be provided to the lifter assembly via the oil passage after the isolating when the lifter assembly is engaged with a lift region of the cam lobe. The lifter assembly may be maintained in the activated mode after the providing. Air may be purged from the oil passage based on the pressurized oil provided to the oil passage.

Abstract: A lubrication apparatus of a fuel pump driven by a fuel pump drive cam, which lubricates a tappet moving reciprocally at an interior circumference of a fuel pump adaptor and the fuel pump operating the tappet, may include a cylinder head provided with a camshaft, an oil supplying passage formed in the camshaft as a hollow type so as to take oil to the interior of the camshaft, at least an oil branch passage formed to a cam lobe of the fuel pump drive cam so as to be communicated with the oil supplying passage, and a circular groove formed at the interior circumference of the fuel pump adaptor and corresponding to an injection direction of the oil supplied from the at least an oil branch passage.

Abstract: The present invention relates to a bearing device (1) for supporting a camshaft (2) in a cylinder head with at least two bearing blocks (3) which support the camshaft (2), and which are axially penetrated by the camshaft (2) to be supported in a first through-opening (6), and with a connection element (5), at which the at least two bearing blocks (3) are fastened in an aligned position, wherein the bearing blocks (3) together with the connection element (5) and the camshaft (2) form a prefabricatable module which is mountable in an aligned position at the cylinder head.

Abstract: A gasket provided in a gasket groove, receives the force that acts in the direction in which two pressure-adjusting oil passages are aligned in line, and the magnitude and direction of this force change as the difference between the hydraulic pressures in the pressure-adjusting oil passages varies. However, because the opening of a hydraulic oil supply passage is located on an imaginary line extending through between the openings of the two pressure-adjusting oil passages, pressure is applied from the hydraulic oil supply passage to the gasket, whereby constant and large frictional force occurs between the gasket and the side wall of the gasket groove. Thus, the gasket is firmly retained in the gasket groove, whereby the vibration of the gasket is suppressed.