CYLINDER HOUSING OF AN INTERNAL COMBUSTION ENGINE

Aspects of the present disclosure are directed to a cylinder housing of an internal combustion engine. In one embodiment of the present disclosure, the cylinder housing includes at least two adjacently arranged cylinders, each of which includes a wet cylinder liner, a support structure, and a coolant jacket arranged between the support structure and the cylinder liner. The cylinder housing further including at least one screw receptacle for a cylinder head screw, and is positioned between at least two adjacently arranged cylinders in a region of at least one engine transverse plane. 1. Cylinder housing of an internal combustion engine , the cylinder housing comprising: a wet cylinder liner,', 'a support structure which receives the wet cylinder liner, and', 'a coolant jacket is arranged between the support structure and the wet cylinder liner, the coolant jacket including a closed deck forming a cylinder head sealing surface;, 'at least two adjacently arranged cylinders, each of which includes'}at least one screw receptacle, configured and arranged to receive a cylinder head screw, and is positioned between the at least two adjacently arranged cylinders in a region of at least one engine transverse plane; andwherein the support structures are free from each other in an intersection region (S) of the at least one engine transverse plane, with an engine longitudinal plane containing a cylinder axes.2. Cylinder housing according to claim 1 , characterized in that the minimum distance (a) between two adjacent support structures in a region of the coolant jacket corresponds at least to half the cylinder head screw diameter.3. The cylinder housing according to claim 1 , characterized in that at least one screw receptacle is spaced from the closed deck.4. The cylinder housing according to one of claim 1 , characterized in that at least one screw receptacle is arranged in a central region of the cylinder.5. The cylinder housing according to claim 1 , characterized in that ...

WATER JACKET OF ENGINE

A water jacket of an engine is capable of implementing cooling water flows as both a cross flow and a parallel flow. The water jacket includes a head water jacket formed in a cylinder head of an engine; a block water jacket formed in a cylinder block of the engine; and a variable partition wall which is configured to induce a cross flow of cooling water in a space between positions of cylinders in the head water jacket, where the variable partition wall has a shape configured to be varied according to an engine operating condition, and the variable partition wall allows the cooling water to flow in a selected one of the cross flow and a parallel flow according to the shape which is varied in head water jacket. 1. A water jacket of an engine , comprising:a head water jacket formed in a cylinder head of an engine;a block water jacket formed in a cylinder block of the engine; anda variable partition wall which is configured to induce a cross flow of cooling water in a space between positions of cylinders in the head water jacket,wherein the variable partition wall has a shape configured to be varied according to an engine operating condition, and the variable partition wall allows the cooling water to flow in a selected one of the cross flow and a parallel flow according to the shape which is varied in the head water jacket.2. The water jacket of claim 1 , wherein the engine operating condition includes a temperature of the cooling water.3. The water jacket of claim 2 , wherein the variable partition wall is installed on a bottom of a cooling water path so as to allow a height of the variable partition wall to be varied according to the temperature of the cooling water in the space between the positions of the cylinders in the head water jacket.4. The water jacket of claim 2 , wherein the variable partition wall includes a wax which is expanded or contracted according to the temperature of the cooling water and of which shape is varied.5. The water jacket of claim 4 , ...

COOLANT JACKET INSERT

Methods and systems are provided for a coolant jacket insert. In one example, a system may include a coolant jacket arranged in a block comprising an insert with a first internal passage configured to direct coolant from an inlet manifold of the coolant jacket directly to a portion of the coolant jacket arranged in a cylinder head. 1. A system , comprising:an insert arranged in a portion of a coolant jacket in a block, wherein the insert comprises a first internal passage configured to flow coolant directly to a portion of the coolant jacket in a head without mixing with coolant in the portion of the coolant jacket in the block, wherein the insert further comprises a second internal passage and a third internal passage, wherein the second and third internal passages are configured to flow coolant to an upper region of the portion of the coolant jacket in the block, wherein the upper region is arranged between a lower surface of the head and a lip of the insert, wherein an engine comprises the block and the head.2. (canceled)3. The system of claim 1 , wherein the second internal passage is configured to direct coolant in a clockwise direction and the third internal passage is configured to direction coolant in a counterclockwise direction.4. The system of claim 1 , wherein the first claim 1 , second claim 1 , and third internal passages are fluidly sealed from one another.5. The system of claim 1 , wherein a number of the first internal passage claim 1 , the second internal passage claim 1 , and the third internal passage is equal to a number of cylinders arranged in the block.6. The system of claim 1 , wherein the second internal passage is arranged in a portion of the insert between the first internal passage and a cylinder liner.7. The system of claim 1 , wherein the first claim 1 , second claim 1 , and third internal passages are arranged adjacent to an intake side of the block claim 1 , wherein the insert further comprises a plurality of outlet passages arranged ...

COOLING LIQUID CIRCULATION DEVICE FOR INTERNAL COMBUSTION ENGINE

A device seating a valve body with the aid of an urging force of a spring by stopping the operation of a pump, changes over an energization state of a coil of at least one of the liquid shutoff valves which is changed over to the closed-valve state where the coil is energized, and then resumes the operation of the pump. Upon detecting the start of operation of the pump, a valve control unit causes a pump control unit to perform opening-closing force-feed control, where an amount of the cooling liquid force-fed by the pump is set to an amount within such a range that the valve body of the liquid shutoff valves whose coil is energized is not displaced in a valve-opening direction while the valve body of the liquid shutoff valves whose coil is not energized is displaced in the valve-opening direction. 1. A cooling liquid circulation device for an internal combustion engine provided with a plurality of cooling liquid passages which are connected in parallel to one another and through which cooling liquid for the internal combustion engine circulates , the cooling liquid circulation device comprising:a pump that is configured to force-feed cooling liquid in the cooling liquid passages at a variable flow rate;control valves that are provided separately in the plurality of the cooling liquid passages, each of the control valves being configured to block up a corresponding one of the cooling liquid passages, and each of the control valves including a valve body, a spring member and an electromagnet, the valve body being configured to be urged in a valve-opening direction by a flow momentum of cooling liquid, the spring member being configured to constantly urge the valve body in a valve-closing direction, and the electromagnet including a core and a coil and configured to generate a magnetic force for suctioning the valve body in the valve-closing direction; andan electronic control unit that is configured to(i) make a changeover between a state where the coil is energized ...

INTERNAL COMBUSTION ENGINE

A cylinder structure includes cylinders arranged inline. A cooling channel facing a first side wall of the cylinder structure includes a first inner channel and a first outer channel. The first inner channel is arranged for a first cooling medium to flow through. The first outer channel is away from the first side wall than the first inner channel is, and arranged for a second cooling medium to flow through. A cooling channel facing a second side wall of the cylinder structure includes a second outer channel and a second inner channel. An upstream part of the second outer channel is connected to a downstream part of the first outer channel. The second inner channel is close to the second side wall than the second outer channel is. Connection channels connecting between the second outer channel and the second inner channel are respectively provided at positions facing the cylinders. 1. An internal combustion engine comprising:a cylinder structure comprising a plurality of cylinders arranged inline; anda cooling channel arranged around a side wall of the cylinder structure, and through which a cooling medium flows, wherein a first side wall on one of an intake side and an exhaust side; and', 'a second side wall on another of the intake side and the exhaust side, and, 'the side wall of the cylinder structure comprises an inlet to which the cooling medium is injected;', 'a first inner channel facing the first side wall, whose upstream part being connected to the inlet, and arranged for a first cooling medium of the injected cooling medium to flow through;', 'a first outer channel facing the first side wall, being away from the first side wall than the first inner channel is, whose upstream part being connected to the inlet, and arranged for a second cooling medium of the injected cooling medium to flow through;', 'a second outer channel facing the second side wall, whose upstream part being connected to a downstream part of the first outer channel, and arranged for the ...

METHOD AND APPARATUS FOR COOLING A CYLINDER HEAD

A water jacket for a cylinder head of an internal combustion engine includes a coolant chamber arranged to permit the flow of coolant within the water jacket and a coolant conduit positioned to permit the flow of coolant proximate to a recess for receiving an exhaust valve mounted to the cylinder head. The coolant conduit is in fluid communication with the coolant chamber, and the coolant conduit is shaped as a complex curve. A water jacket includes a pair of apertures arranged to receive a spark plug and a fuel injector. The apertures are separated by a separating member, and a coolant chamber is arranged to permit the flow of coolant about the apertures. The separating member includes a coolant channel in fluid communication with the coolant chamber so as to permit the flow of coolant between the apertures. 1. A water jacket for a cylinder head of an internal combustion engine , the water jacket comprising:a coolant chamber arranged to permit a flow of a coolant within a water jacket; anda coolant conduit positioned to permit the flow of the coolant proximate to a recess for receiving an exhaust valve mounted to a cylinder head, said coolant conduit in fluid communication with the coolant chamber, wherein said coolant conduit is shaped as a complex curve.2. The water jacket according to claim 1 , wherein each curve within the complex curve has a finite radius.3. The water jacket according to claim 1 , wherein the complex curve is one or a combination of a double reverse curve claim 1 , a spline or a dual radius curve.4. The water jacket according to claim 3 , wherein the complex curve is a double radius curve having the relationship Θ/11 Подробнее

COOLING STRUCTURE OF WATER-COOLED ENGINE

A cooling structure of a water-cooled engine includes: a plurality of cylinders arranged in a cylinder block ; and a water jacket W formed around the plurality of cylinders . The water jacket W includes a pair of main flow paths formed in a state of extending in a cylinder arrangement direction outside the cylinders, and inter-bore flow paths formed between adjacent cylinders in a state of connecting the pair of main flow paths . Guide walls , capable of guiding the cooling water flowing in the main flow paths to the inter-bore flow paths , are formed in the cylinder block 1. A cooling structure of a water-cooled engine , comprising:a plurality of cylinders arranged in a cylinder block; anda water jacket formed around the plurality of cylinders,whereinthe water jacket includes a pair of main flow paths formed in a state of extending in a cylinder arrangement direction outside the cylinders, and inter-bore flow paths formed between adjacent cylinders in a state of connecting the pair of main flow paths, andguide walls, capable of guiding the cooling water flowing in the main flow paths to the inter-bore flow paths, are formed in the cylinder block.2. The cooling structure of the water-cooled engine according to claim 1 , wherein the guide walls corresponding to the inter-bore flow paths claim 1 , adjacent to each other in the cylinder arrangement direction claim 1 , are formed in a state of guiding the cooling water to the inter-bore flow paths in opposite directions to each other.3. The cooling structure of the water-cooled engine according to claim 1 , wherein the guide walls corresponding to the inter-bore flow paths claim 1 , adjacent to each other in the cylinder arrangement direction claim 1 , are formed in a state of guiding the cooling water to the inter-bore flow paths in the same direction with each other.4. The cooling structure of the water-cooled engine according to claim 1 , wherein the guide walls are formed in a cylinder outer frame portion that ...

Structure Mounted in Water Jacket for Cylinder Block

A structure is mounted in a water jacket for a cylinder block of an engine. The structure includes a body forming a housing mounting portion including a panel formed in an arc shape so as to have inner and outer curved surfaces to be surrounded by a block bore. A pad-housing is formed in a plate shape to have curved surfaces with a curvature equal to the inner and outer curved surfaces of the housing mounting portion. The pad-housing is inserted into a housing mounting hole and is formed in a shape to correspond with the housing mounting hole. A pad is formed in a shape to correspond with a pad mounting hole which is bored through the pad-housing through. The pad has a curved surface and is inserted into the pad mounting hole to achieve water tightness. 1. A structure to be mounted in a water jacket for a cylinder block of an engine , the structure comprising:a body forming a housing mounting portion comprising a panel formed in an are shape so as to have inner and outer curved surfaces to be surrounded by a block bore, the housing mounting portion having a housing mounting hole;a pad-housing formed in a plate shape to have curved surfaces with a curvature equal to the inner and outer curved surfaces of the housing mounting portion, the pad-housing inserted into the housing mounting hole and formed in a shape to correspond with the housing mounting hole; anda pad formed in a shape to correspond with a pad mounting hole which is bored through the pad-housing through, the pad having a curved surface and inserted into the pad mounting hole to achieve water tightness.2. The structure of claim 1 , wherein the body is disposed in an up and down direction of the water jacket.3. The structure of claim 1 , wherein the body and the pad-housing are formed of a plastic material and the pad is formed of a hydrophilic expansion rubber material.4. The structure of claim 1 , wherein the structure includes a plurality of pad-housings and pads and wherein the body is formed in a ...

Method for the Production of a Cast Engine Block for a Combustion Engine and Engine Block

The invention provides a method for easily producing an engine block for a combustion engine. The method includes: a) providing an engine block with an open water jacket opening; b) placing an insert in the water jacket opening; and c) fixing the insert in the water jacket opening by friction welding. The shape of the insert is adapted to the shape of the water jacket opening such that the insert, when being placed, at least partially closes the water jacket opening and bridges the distance between the outer wall and the cylinder wall, thereby supporting the cylinder wall against the outer wall of the engine block. An engine block produced accordingly shows the advantages of a closed deck engine block. 115.-. (canceled)16. A method for the production of a cast engine block for a combustion engine , the engine block comprising:a deck,at least one cylinder opening, and an open water jacket,which is formed into the engine block between a cylinder wall defining a cylinder opening and an outer wall, wherein a contact face is provided on the top of the deck for mounting a cylinder head of the combustion engine, the cylinder opening and the opening of the water jacket being formed in the contact face, the method comprising:a) providing an engine block with an open water jacket opening;b) placing an insert in the water jacket opening, the shape of the insert being adapted to the shape of the water jacket opening such that the insert, when being placed, at least partially closes the water jacket opening and bridges the distance between the outer wall and the cylinder wall, thereby supporting the cylinder wall against the outer wall of the engine block;and,c) fixing the insert in the water jacket opening by friction welding,wherein the friction welding is performed as friction stir welding,wherein the welding (process step c)) is executed with a friction stirring tool which rotates around a rotating axis aligned at an angle to the contact face, the friction stirring tool ...

Reciprocating piston engine with liner

A reciprocating piston engine which has a cylinder block, at least one combustion chamber arranged in the cylinder block and a liner which borders the combustion chamber and is composed of a first material is provided. In one example, the reciprocating piston engine comprises a reinforcing element composed of a second material for the radial reinforcement of the liner, said reinforcing element being arranged between the cylinder block and the liner and at least partially surrounding the liner, with the second material having a higher modulus of elasticity than the first material.

ENGINE COOLING STRUCTURE

An engine cooling structure includes a cylinder block including a block inner peripheral wall that defines a water jacket and a block outer peripheral wall, a spacer housed in the water jacket, and a cooler provided outside the engine body. The spacer includes: a peripheral wall surrounding the block inner peripheral wall; and a dividing wall protruding from the peripheral wall to divide the water jacket into an upper passage and lower passages below the upper passage. A coolant introduced from a coolant inlet into the upper passage passes through an inter-bore part of the block inner peripheral wall. The coolant in the lower passages is introduced into the cooler through a coolant exit. 1. An engine cooling structure for cooling an engine body including a plurality of cylinders by using a coolant , the engine cooling structure comprising:a cylinder block including: a block inner peripheral wall defining the plurality of cylinders; and a block outer peripheral wall surrounding the block inner peripheral wall to define a water jacket through which the coolant circulates between the block outer peripheral wall and the block inner peripheral wall;a spacer housed in the water jacket; anda cooler provided outside the engine body,wherein the block outer peripheral wall includes: a coolant inlet configured to introduce the coolant into the water jacket; and a coolant exit configured to lead out the coolant from the water jacket to the cooler,the block inner peripheral wall includes an inter-bore part positioned between adjacent cylinders of the plurality of cylinders,the spacer includes: a peripheral wall surrounding the block inner peripheral wall; and a dividing wall protruding from the peripheral wall to divide the water jacket into an upper passage and a lower passage below the upper passage,the coolant inlet is provided at a position to introduce the coolant into the upper passage,the upper passage allows the coolant introduced from the coolant inlet to pass through ...

Water jacket for an internal combustion engine

A water jacket having a coolant flow crossing the space over the cylinder head is provided for an internal combustion engine of an automotive system. The internal combustion engine is equipped with a cylinder and a cylinder head. The water jacket includes a lower water jacket having side passages surrounding the cylinder and connected together by a plurality of branches disposed over the cylinder head, so as to create the coolant flow crossing the space over the cylinder head.

ENGINE COOLER

An engine cooler capable of suppressing a piston slap sound is provided. The engine cooler includes a cylinder block including a cylinder barrel and a water jacket, and a spacer stored in the water jacket, the water jacket surrounds the cylinder barrel, and the spacer encloses the cylinder barrel. Given that a width direction of the cylinder block is a lateral direction, a pressed member is pressed between the cylinder barrel and the spacer on lateral sides of the cylinder barrel, and a lower end of the pressed member is disposed above a lower end of each of right and left skirts of a piston located at a top dead center. 1. An engine cooler comprising:a cylinder block having a cylinder barrel and a water jacket, and a spacer stored in the water jacket,the water jacket surrounding the cylinder barrel, and the spacer enclosing the cylinder barrel, whereinthe engine cooler further comprising a pressed member,given that a width direction of the cylinder block is a lateral direction, the pressed member is pressed between the cylinder barrel and the spacer on lateral sides on the cylinder barrel, anda lower end of the pressed member is disposed above a lower end of each of right and left skirts of a piston located at a top dead center.2. The engine cooler according to claim 1 , whereinthe lower end of the pressed member is disposed above a piston maximum-diameter section of each of the right and left skirts of the piston located at the top dead center.3. The engine cooler according to claim 1 , whereina front end of the pressed member is disposed in front of a front end of each of the right and left skirts of the piston fitted in the cylinder barrel pressing the pressed member, and a rear end of the pressed member is disposed in the rear of a rear end of the skirt.4. The engine cooler according to claim 1 , whereinan upper end of the pressed member is disposed below a lower end of a pressure ring of the piston located at the top dead center.5. The engine cooler according ...

Engine block of a diesel engine with integrated cylinder head, and casting method

An engine block of a diesel engine cast integrally with the cylinder head, with a number of cylinders in line, including an outer wall ( 21 ) and a cylinder wall ( 13 ) for each cylinder with a first cooling space ( 22 ) for a liquid cooling medium and with a second cooling space ( 25 ) on top of a cylinder ceiling ( 14 ) with openings ( 15,16 ) for gas exchange valves, the first cooling space ( 22 ) enclosing all the cylinder walls ( 13 ) entirely. In order to strengthen and cooling the vulnerable zone at the transition from cylinder wall ( 13 ) to cylinder ceiling ( 14 ) the first cooling space of adjacent cylinders forms a gap ( 23 ) with a width ( 35 ) constant or increasing from top to bottom.

CYLINDER BLOCK

A cylinder block defines a cylinder, in which a piston is reciprocated. The cylinder includes an upper bore, a center bore, and a lower bore arranged in order from proximity to a cylinder head in the axial direction of the cylinder. The inner diameter of the center bore is greater than the inner diameters of the upper bore and the lower bore. The cylinder block defines an upper recess that serves as an upper water jacket surrounding the upper bore and a lower recess that serves as a lower water jacket surrounding the lower bore. The upper recess and the lower recess are spaced apart from each other in the axial direction of the cylinder so as to sandwich a spacer. 1. A cylinder block comprising:a cylinder, in which a piston is reciprocated; anda water jacket, through which coolant flows, wherein an upper bore,', 'a center bore that is connected to the upper bore and has an inner diameter that is greater than an inner diameter of the upper bore, and', 'a lower bore that is connected to the center bore and has an inner diameter that is less than the inner diameter of the center bore,, 'the cylinder includes'}wherein the upper bore, the center bore, and the lower bore are arranged in order in an axial direction of the cylinder from proximity to a cylinder head fixed to the cylinder block, an upper water jacket that surrounds the upper bore at an outer side in a radial direction of the cylinder, and', 'a lower water jacket that surrounds the lower bore at the outer side in the radial direction of the cylinder, and, 'the water jacket includes'}the upper water jacket and the lower water jacket are spaced apart from each other in the axial direction of the cylinder so as to sandwich a non-formation area in which the water jacket is not formed.2. The cylinder block according to claim 1 , whereinwhen viewed in a cross section including a central axis of the cylinder, a cross-sectional passage area of the upper water jacket is greater than a cross-sectional passage area of ...

INTERNAL COMBUSTION ENGINE

The invention relates to a fluid-cooled internal combustion engine () having at least one cylinder block () and at least one cylinder head () for at least two cylinders (), wherein the internal combustion engine () has a first side () and an opposite second side () of a longitudinal center plane () spanned by at least two cylinder axes () of the cylinders (). In at least one web portion () between two cylinders () positioned next to one another in the region of a motor transverse plane () arranged in a normal position to the longitudinal center plane in the cylinder head (), at least one second cooling channel () connecting the first side () and the second side (), having at least one first opening () on the first side () and at least one second opening () on the second side (), is arranged. The aim of the invention is to cool the web portion () in a most space-saving manner. This aim is achieved in that between the first opening () and the second opening (), the second cooling channel () is molded into the cylinder head as a closed cross section, and has, from a cylinder head sealing plane () of the cylinder head (), at least in the region of the longitudinal center plane () in the direction of a cylinder axis (), a sealing plane distance (a). 1. An internal combustion engine with liquid cooling , comprising:at least one cylinder block and at least one cylinder head for at least two cylinders,a first side and an opposite second side of a longitudinal center plane which is spanned by at least two cylinder axes of the cylinders and at least one second cooling channel,the at least one second cooling channel connects the first side and the second side and has at least one first opening on the first side and at least one second opening on the second side, and the at least one second cooling channel is arranged in at least one web region between two adjacently disposed cylinders in the region of an engine transverse plane in the cylinder head.the at least one cylinder ...

COOLING STRUCTURE FOR INTERNAL COMBUSTION ENGINE

The cooling structure for internal combustion engine includes: a cylinder head including a fixing part for fuel injection valve of a cylinder-direct-injection type; a cylinder block; and a water jacket spacer. A surface on a cylinder block side of the cylinder head is recessed so as to be sectioned into a recessed coolant passage communicating with a block-side water jacket formed in the cylinder block. The recessed coolant passage surrounds periphery of the fixing part for the fuel injection valve. An edge on a cylinder head side of the water jacket spacer that is disposed in the block-side water jacket is provided with projection projecting toward the recessed coolant passage so as to direct at least part of the coolant flowing inside the block-side water jacket toward the recessed coolant passage. 1. A cooling structure for an internal combustion engine , allowing a coolant to flow along periphery of a fixing part for fuel injection valve so as to cool the fuel injection valve , the cooling structure comprising:a cylinder head including the fixing part for the fuel injection valve of a cylinder-direct-injection type;a cylinder block; anda water jacket spacer, whereina surface on a cylinder block side of the cylinder head is recessed so as to be sectioned into a recessed coolant passage communicating with a block-side water jacket formed in the cylinder block, the recessed coolant passage surrounding periphery of the fixing part for the fuel injection valve, andan edge on a cylinder head side of the water jacket spacer that is disposed in the block-side water jacket is provided with a projection projecting toward the recessed coolant passage so as to direct at least part of the coolant flowing inside the block-side water jacket toward the recessed coolant passage.2. The cooling structure for the internal combustion engine according to claim 1 , wherein:the cooling structure is provided in a multiple-cylinder internal combustion engine;in the block-side water ...

INTERNAL COMBUSTION ENGINE

An internal combustion engine includes an anisotropic thermal conductivity member () provided on a wall surface defining a cylinder or a wall surface of a cooling water passage on a side of the cylinder, a thermal conductivity of the anisotropic thermal conductivity member in an axial direction of the cylinder being higher than a thermal conductivity of the anisotropic thermal conductivity member in a radial direction of the cylinder, and a thermally insulating member () provided on an outer surface of the anisotropic thermal conductivity member with respect to the radial direction of the cylinder. 1. An internal combustion engine , comprising:a cylinder block defining a cylinder receiving a piston and a cooling water passage provided radially outwardly of the cylinder;an anisotropic thermal conductivity member provided on a wall surface defining the cylinder or a wall surface of the cooling water passage on a side of the cylinder, a thermal conductivity of the anisotropic thermal conductivity member in an axial direction of the cylinder being higher than a thermal conductivity of the anisotropic thermal conductivity member in a radial direction of the cylinder; anda thermally insulating member provided on an outer surface of the anisotropic thermal conductivity member with respect to the radial direction of the cylinder.2. The internal combustion engine according to claim 1 , wherein the cooling water passage has a greater length in the axial direction of the cylinder than a stroke length of the piston.3. The internal combustion engine according to claim 2 , wherein the anisotropic thermal conductivity member and the thermally insulating member each have a greater length in the axial direction of the cylinder than the stroke length of the piston.4. The internal combustion engine according to claim 3 , wherein the anisotropic thermal conductivity member and the thermally insulating member each have an upper end located above a top ring of the piston at a top dead ...

ENGINE

An engine is disclosed of the V-configuration having an integrated engine and transmission. The engine has a crankshaft which directly couples to drive the water pump, oil pump and transmission clutch. The water pump has a drive shaft coupled to the crankshaft that extends across the crankcase from a first to a second side. The water pump includes a housing where at least a portion is defined in the face of the crankshaft. 1. An engine , comprising:a crankcase profiled in a V-configuration;two cylinders, each having a cylinder bore;a head positioned over each of the cylinders;a crankshaft journalled in the crankcase;two pistons coupled to the crankshaft and positioned in respective cylinders to reciprocate therein; anda water pump coupled to the crankshaft, the water pump comprising a water pump housing, wherein at least a portion of the water pump housing is defined in the outer face of the crankcase.2. The engine of claim 1 , wherein the water pump housing comprises an opening at an outer surface of the crankcase claim 1 , and the water pump comprises an impeller positioned in the opening.3. The engine of claim 2 , wherein the water pump includes first and second convolutes extending from the water pump opening.4. The engine of claim 3 , wherein the convolutes are defined in the outer face of the crankcase.5. The engine of claim 4 , wherein an acute angle is defined by a first line drawn between a rotational axis of the crankshaft and a centerline of a first cylinder bore claim 4 , and a second line drawn between the rotational axis of the crankshaft and a centerline of a second cylinder bore claim 4 , and the water pump opening is within the acute angle.6. The engine of claim 5 , further comprising a water pump drive shaft having a drive end and an impeller end claim 5 , the drive end of the water pump shaft is positioned on a first side of the crankcase and the impeller end of the water pump shaft is positioned on a second side of the crankcase.7. The engine of ...

DIVIDING COMPONENT OF COOLING WATER CHANNEL OF WATER JACKET, INTERNAL COMBUSTION ENGINE, AND AUTOMOBILE

A water jacket coolant passage division member includes: a partition member that has a planar shape that conforms to a groove-like coolant passage provided to a cylinder block that is provided to an internal combustion engine; an inner-side rubber member that is provided to an inner side of the partition member, and comes in contact with a cylinder bore-side wall surface of the groove-like coolant passage; and an outer-side rubber member that is provided to an outer side of the partition member, and comes in contact with an outer wall surface of the groove-like coolant passage. An internal combustion engine in which a cylinder bore wall has a uniform temperature can be provided by utilizing the water jacket coolant passage division member. 1. A water jacket coolant passage division member comprising:a partition member that divides a groove-like coolant passage into an upper part and a lower part, the groove-like coolant passage being provided to a cylinder block that is provided to an internal combustion engine;an inner-side rubber member that is provided to an inner side of the partition member, and comes in contact with a cylinder bore-side wall surface of the groove-like coolant passage; andan outer-side rubber member that is provided to an outer side of the partition member, and comes in contact with an outer wall surface of the groove-like coolant passage.2. The water jacket coolant passage division member according to claim 1 ,wherein the partition member has a shape that conforms to the entirety of the groove-like coolant passage,the inner-side rubber member is provided to the entirety or part of the inner side of the partition member along a longitudinal direction, andthe outer-side rubber member is provided to the entirety or part of the outer side of the partition member along the longitudinal direction.3. The water jacket coolant passage division member according to claim 1 ,wherein the partition member has a shape that conforms to part of the groove-like ...

Internal combustion engine

An internal combustion engine that can ensure an adequate cooling performance by using a small number of component parts, and can be minimized in size. The cooling device includes a boiling water cooling device including a water jacket, coolant piping, steam piping and a radiator, an air cooling fan connected to one end of a crankshaft projecting from an outer surface of the engine main body, and a cover member provided on the engine main body so as to cover the air cooling fan, and define a cooling air passage extending to a radiator core.

Liquid-cooled internal-combustion engine i.e. four-cylinder internal-combustion engine, has supply channel provided from coolant supply channel in coolant channel in longitudinal side that opens out in wedge area of bar

The engine has cylinders (2), and a bar formed between the cylinders. A coolant jacket (1) in a crankcase is equidistantly extended along the cylinders. The jacket is formed in a cylinder head (7). A coolant supply channel (3a) extends along the coolant jacket. A supply channel (4) is provided from the coolant supply channel in a coolant channel in a longitudinal side (1a) that opens out in a wedge area (5) of the bar from geodetically down into the coolant channel in the longitudinal side. A screw connection of the cylinder head and the crankcase is provided in the wedge area.

内燃机主体

一种内燃机主体，具备多个汽缸、具有第1水套及第2水套的汽缸体、以及具有盖内水套的汽缸盖。所述盖内水套具备进气侧流路，所述汽缸体及所述汽缸盖形成为，流入到所述第1水套的冷却水中的向所述进气侧流路直接流入的冷却水的流量比流入到所述第1水套的冷却水中的向所述进气侧流路以外直接流入的冷却水的流量多。

エンジンのシリンダブロックおよびその製造方法

Cylinder block structure for multi-cylinder internal-combustion engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Production of cylinder block

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

FOLDING BAYDARKA

Multi-cylinder engine cooling system

Cylinder block for reciprocating piston type internal combustion engine

Metal laminate gasket with edge support shims

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Engine block assembly

一种发动机缸体组件，包括发动机缸体铸造件，所述铸造件包括串序设置的多个汽缸孔，每一个气缸具有汽缸壁。外发动机缸体壁在汽缸壁周围。通道形成在汽缸壁的外周表面和外发动机缸体壁之间。冷却剂通道通过外缸体壁流体连接到通道。水套插入件包括上凸缘、支柱部分和下凸缘。多个孔口形成在支柱部分中。可压缩密封件附接到水套插入件的下凸缘，其被组装到通道中且顺应于通道的底部部分。

Internal combustion engine body

복수의 실린더 (21) 와, 제 1 워터 재킷 (41) 및 제 2 워터 재킷 (42) 을 갖는 실린더 블록 (20) 과, 헤드 내 워터 재킷 (51) 을 갖는 실린더 헤드 (30) 를 구비한다. 상기 헤드 내 워터 재킷 (51) 은, 흡기측 유로 (52) 를 구비하고, 상기 실린더 블록 (20) 및 상기 실린더 헤드 (30) 는, 상기 제 1 워터 재킷 (41) 에 유입된 냉각수 중 상기 흡기측 유로 (52) 로 직접 유입되는 냉각수의 유량이, 상기 제 1 워터 재킷 (41) 에 유입된 냉각수 중 상기 흡기측 유로 (52) 이외로 직접 유입되는 냉각수의 유량보다 많아지도록 형성되는, 내연 기관 본체 (10).

Internal combustion engine, motor vehicles and water jacket

本实用新型涉及一种内燃机(10)，其具有至少一个在气缸(12)中可沿着冲程(h)在上止点(OT)与下止点(UT)之间移动的活塞(14)以及用于冷却活塞(14)和气缸(12)的水套(16)。根据本实用新型，水套(16)在下行冲程方向上从上止点(OT)最大延伸直至冲程(h)的中心。此外，螺纹起始部(26)位于内燃机(10)的水套底部(20)以下至少3mm且最大30mm。

Stock of other light metal parts to be cast into light metal casting parts and production of stock

(57)【要約】 【目的】 なるべく過共晶アルミニウム−珪素から成り クランクケースへ鋳込むべきシリンダライナの特別な表 面処理により、シリンダライナとクランクケースとの特 に良好な物質結合を行う。 【構成】 シリンダライナの素材９は、その外側に、角 錐状又はランセツト状の突出材料肌傷又は材料堆積部の 形の３０ないし６０μｍの粗さを持つている。これは、 約７０μｍの平均粒度の脆い硬質材料なるべく高級コラ ンダムから成り角ばつた縁を持つように破砕される粒子 を素材９の表面に吹付けることによつて行われる。形成 される微粒成分は連続的に分離され、新しい粒子の添加 により平均粒度を維持する。

Locomotive diesel engine (versions) as well as device and cylinder assembly to be incorporated therewith

FIELD: engines and pumps. SUBSTANCE: proposed engine consists of housing, cylinder head, cylinder liner and separate water jacket. Note here that said water jacket is arranged between cylinder liner and engine housing and cylinder liner rests on said water jacket. Cylinder liner outer shoulder rests on water jacket inner ledge to rule out direct contact between cylinder liner and engine housing. There is cooling channel between water jacket and cylinder liner arranged so that cylinder liner outer surface is subjected to cooling agent nearby top piston ring. Liner top seal is arranged above cooling channel and liner bottom seal is arranged between cylinder liner and engine housing below cooling channel. Opening for coolant is arranged directly between cylinder head and water jacket and is provided with seal, other than any other seal between water jacket and cylinder head. EFFECT: higher efficiency of heat rejection, reduced wear of liner and ruling out of coolant leakage. 20 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 393 364 (13) C2 (51) МПК F02F F01P 1/16 3/02 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2007119377/06, 19.10.2005 (24) Дата начала отсчета срока действия патента: 19.10.2005 (73) Патентообладатель(и): ДЖЕНЕРАЛ ЭЛЕКТРИК КОМПАНИ (US) (43) Дата публикации заявки: 27.11.2008 2 3 9 3 3 6 4 (45) Опубликовано: 27.06.2010 Бюл. № 18 (56) Список документов, цитированных в отчете о поиске: SU 1537863 A1, 23.01.1990. US 4640236 A, 03.02.1987. US 6164260 A, 26.12.2000. ЕР 0814243 A1, 29.12.1997. SU 1588890 A1, 30.08.1990. 2 3 9 3 3 6 4 R U (86) Заявка PCT: US 2005/037707 (19.10.2005) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 25.05.2007 (87) Публикация PCT: WO 2006/047206 (04.05.2006) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. С.А.Дорофееву, рег.№ 146 (54) ...

A engine block of vehicle

The present invention relates to an engine block for a vehicle, comprising: a water jacket provided with a cooling water inlet and a plurality of cooling water outlets as a groove provided to surround an outer circumferential surface of a cylinder; A first insert panel inserted into the water jacket to surround at least a part of an exhaust-side outer circumferential surface of the cylinder; A second insert panel inserted into the water jacket to surround at least a part of an outer circumferential surface of an intake side of the cylinder; And a rib which is provided on the first insert panel or the second insert panel and protrudes toward the cylinder wall, the water jacket portion extending along the cylinder array direction and having the first insert panel or the second insert panel inserted therein, And an isolation membrane for partitioning the space into a space and a lower space.

Engine And Cooling Method For Vehicle

본 발명은 피스톤이 왕복하는 연소실과, 상기 연소실을 냉각시키도록 냉각수가 유동하는 워터재킷이 형성되고, 엔진의 골격을 이루는 실린더 블록을 포함하는 차량용 엔진에 있어서, 상기 실린더 블록은 상기 연소실이 형성된 실린더 블록 본체와 상기 실린로 블록 본체로 공급되는 냉각수와 열교환되는 복수의 EGR쿨러가 장착된 차량용 엔진의 냉각 장치에 관한 것이다. The present invention relates to a vehicle engine having a combustion chamber in which a piston reciprocates, and a cylinder block constituting a skeleton of an engine, in which a water jacket through which cooling water flows to cool the combustion chamber is formed, And more particularly to a cooling system for a vehicle engine having a block body and a plurality of EGR coolers that are heat-exchanged with cooling water supplied to the cylinder block body.

Head gasket in motor of ship - made with aluminium@ core having similar electrode potential to that of surface of motor block and cylinder head

Head gasket for a ships motor which is cooled by the motor in which the strip moves consists of a metal core (52) with upper and low (58,60) coatings. The electrode potential of the core is approx. equal to that of the non-ferrous metal surfaces of the motor block (14) and cylinder head (12). The surface of the motor block and cylinder head are made of Al as is the core of the head gasket. The coating layers may be fixed to the core by using an adhesive (64) which is solvent based and water resistant or by mechanical means. The core is perforated to correspond to the openings in the head and block sections. The main openings (66) are provided with ring shaped metallic fire seals (74) which overlays the core on both the upper and lower surfaces (76,78). The fire seal is pref. made from stainless steel. ADVANTAGE - Galvanic corrosion between the gasket and motor surfaces is minimised.

Method of optimization of profile of side surface of piston, position of piston rings and minimal clearance between piston and cylinder of engine in cold state and device for its implementation

FIELD: mechanical engineering. SUBSTANCE: device includes semiconductor meter 1 which output 2 is electrically coupled to cathode-ray unit 3 and to input 4 of mirror- galvanometer oscillograph 5. Cathode-ray unit 3 can be placed in electric circuit both in series and in parallel. Unit 6 registering temperature of head of piston of engine provided with marker of upper dead center communicates with temperature transducer of head of piston. Engine 7 is coupled to brake unit via rigid coupling 10. Meter operates by principle of frequency modulation. Change of capacitance of pickup 16 connected in circuit of generator of high-frequency oscillations causes proper deviation of generator frequency from rated value. EFFECT: improved operational reliability. 4 cl, 6 dwg

Internal combustion engine

本发明具备以围绕多个气缸(#1-#4)的方式形成的环状冷却水通路(16)。包括具有比气缸体(10)大的热膨胀系数，并将环状冷却水通路(16)划分成第一通路(22)和第二通路(24)的两个分隔构件(12、14)。第一通路(22)主要在沿着气缸体(10)的长度方向延伸的长度方向缸膛中心面的一侧延伸，第二通路(24)主要在其另一侧延伸。设有与第一通路(22)连通的入口和与第二通路(24)连通的出口。具备向第一通路(22)及第二通路(24)这双方开口的冷却水通路的气缸盖安装于气缸体(10)。气缸体(10)及分隔构件(12、14)形成为内燃机的预热时作用在两者间的应力不会达到分隔构件(12、14)的破坏应力。

Metallic cylinder head gasket

Cooling water path for v-type multi-cylinder internal- combustion engine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Method for producing collapsible sand core

Internal combustion engine

Manufacturing method of cylinder liner blank cast into light metal crankcase of reciprocating engine

(57)【要約】 シリンダライナに表面活性化処理を施して、シリンダライナと軽金属製クランクケースの鋳造材料との間の結合力を高める。シリンダライナの表面に、機械的に粗面処理を施すことによって、表面活性化処理を施す。その処理表面に銅粒子を埋込むことで更に良好な効果が得られる。表面活性化処理が完了してから鋳込みまでの経過時間を短時間にすることが重要である。更に、表面活性化処理を施した表面にはなるべく手を触れないようにすべきである。

Metal laminated cylinder head gasket

Patent FR2200894A6

Patent FR2441073B1

Internal combustion engine with several intake valves per cylinder.

Cylinder head gasket with aluminium core for marine engines and marine engine equipped with such a gasket

A cylinder head gasket for use in a marine engine designed to be cooled by the water in which it is operating, the engine including a cylinder head made of a non-ferrous alloy and an engine block made of a non-ferrous alloy, the engine block and cylinder head both, preferably, being made of aluminium alloy. The gasket comprises a metal sheet forming a core (52), the core including upper (54) and lower (56) surfaces, layers (58, 60) of external material located fixedly on the said upper (54) and lower (56) surfaces, and in which the electrolytic solution potential of the metallic sheet is substantially equal to the respective electrolytic solution potentials of the engine block and of the cylinder head.

BLOCK FOR INTERNAL COMBUSTION PISTON ENGINE, PARTICULARLY DIESEL ENGINE

CHAQUE CYLINDRE 3 EST FIXE AU BLOC MOTEUR 1 PAR UNE PLAQUE DE LIAISON 8 DISPOSEE A UNE CERTAINE DISTANCE DU PLAN SUPERIEUR 18 DE JONCTION A LA CULASSE. LA PARTIE SUPERIEURE 9 DU CYLINDRE, TRES EXPOSEE A LA CHALEUR DE COMBUSTION PEUT AINSI SE DEFORMER ELASTIQUEMENT LIBREMENT, CE QUI EVITE LES DEFORMATIONS PERMANENTES. EACH CYLINDER 3 IS FIXED TO ENGINE BLOCK 1 BY A LINK PLATE 8 ARRANGED AT A CERTAIN DISTANCE FROM THE UPPER PLANE 18 OF JUNCTION TO THE CYLINDER HEAD. THE UPPER PART 9 OF THE CYLINDER, VERY EXPOSED TO THE HEAT OF COMBUSTION, CAN THUS DEFORM ELASTICALLY FREELY, WHICH PREVENTS PERMANENT DEFORMATIONS.

CYLINDER BLOCK AND ITS COOLING WATER PIPES

BLOC-CYLINDRES EN UNE SEULE PIECE, FABRIQUE PAR MOULAGE SOUS PRESSION, POUR UN MOTEUR A COMBUSTION INTERNE AVEC DEUX RANGEES DE CYLINDRES DISPOSEES EN V, POURVU D'UN CANAL LONGITUDINAL 4 POUR L'ARRIVEE DE L'EAU DE REFROIDISSEMENT. CELUI-CI EST EN LIAISON AVEC LES CHAMBRES DE LIQUIDE DE REFROIDISSEMENT 5, 6, 7, 8 DES CYLINDRES, QUI SONT DISPOSEES CHACUNE ENTRE LA CHEMISE INTERIEURE DE CHACUN DESDITS CYLINDRES ET UNE PARTIE DE L'ENVELOPPE EXTERIEURE QUI LES ENTOURE. LE CANAL LONGITUDINAL EST DISPOSE DANS LE BLOC-CYLINDRES ENTRE LES RANGEES DE CYLINDRES 2, 3, ET DANS LA ZONE DES CHAMBRES DE LIQUIDE DE REFROIDISSEMENT IL EST PREVU POUR CHAQUE CYLINDRE AU MOINS UN ORIFICE DE PASSAGE 13, 14, 15, 16. CES ORIFICES DE PASSAGE VIENNENT DE FONDERIE ET ILS SONT DISPOSES SELON UNE ORIENTATION APPROXIMATIVEMENT RADIALE PAR RAPPORT AUX CYLINDRES CORRESPONDANTS, DANS LES PAROIS DE CARTER DU BLOC-CYLINDRES QUI SE TROUVENT IMMEDIATEMENT A COTE DU CANAL LONGITUDINAL.

Hollow metal part provided with a seal, such as a motor vehicle engine crankcase.

L'invention est relative à une pièce métallique creuse, telle qu'un carter inférieur de moteur de véhicule automobile. Elle est monobloc et comporte à sa partie supérieure un rebord périphérique (2) réalisé par déformation de sa paroi (3), rebord dans lequel sont ménagés des trous traversants (6) pour le passage d'organes de fixation, tels que des vis de serrage, et une gorge réalisée par déformation de la paroi dudit rebord périphérique (2) pour la réception d'un joint d'étanchéité (8, 9). The invention relates to a hollow metal part, such as a lower casing for a motor vehicle engine. It is in one piece and comprises at its upper part a peripheral rim (2) produced by deformation of its wall (3), a rim in which through holes (6) are formed for the passage of fasteners, such as screws. clamping, and a groove produced by deformation of the wall of said peripheral rim (2) for receiving a seal (8, 9).

CYLINDER COVER WITH INTEGRATED AIR FILTER.

"MOTOR BLOCK OF MOTOR VEHICLE"

INTERNAL COMBUSTION ENGINE PROVIDED WITH IMPROVED MEANS FOR COOLING THE CYLINDER BLOCK

PROCESS FOR REALIZING INTERFUT CHANNELS IN A CYLINDER CRANKCASE

La présente invention se rapporte à un procédé de réalisation de canal interfûts dans un carter-cylindres avec des fûts (20) adjacents séparés l'un de l'autre par une cloison interfûts (21), comprenant les étapes suivantes : - réalisation d'une saignée sur la face supérieure du carter-cylindres, s'étendant dans l'épaisseur d'au moins une cloison interfûts et transversalement à la direction d'alignement des fûts adjacents, puis - une opération de soudage par friction malaxage de manière à joindre les bords supérieurs de la saignée en un pontet (32), de manière à former un canal (30) dans la cloison interfûts. L'invention concerne également un carter-cylindres avec un canal interfûts obtenu selon ce procédé. The present invention relates to a method of making an inter-barrel channel in a cylinder block with adjacent barrels (20) separated from each other by an inter-barrel partition (21), comprising the following steps: a groove on the upper face of the cylinder block, extending in the thickness of at least one inter-barrel partition and transversely to the direction of alignment of the adjacent barrels, then - a friction stir welding operation so as to join the upper edges of the groove in a bridge (32), so as to form a channel (30) in the inter-barrel partition. The invention also relates to a cylinder block with an inter-barrel channel obtained according to this process.

INTERNAL COMBUSTION ENGINE HAVING FLANGING FACES FOR CONNECTING THE GOING AND RETURN PIPES OF A COOLING WATER HEAT EXCHANGER

Explosion wire spray coating of aluminium based surfaces - for coating cylinders for internal combustion engine

An Al based sliding surface is explosion wire spray coated with a bonding layer of Mo, W or Mo-W and then with several alternate layers of C steel and Mo, Mo-W, Cr, Ni-Cr or Ti. The coated product is then ground. Used for coating the internal surface of Al based cylinders for i.c. engines. Coated surfaces with good wear resistance, peel resisance and uniform quality are inexpensively mass produced without an effluent causing pollution problems.

CYLINDER BLOCK FOR INTERNAL COMBUSTION ENGINE

CE BLOC-CYLINDRES COMPORTE UNE PARTIE 1 DELIMITANT DES CYLINDRES, AYANT UNE SERIE D'ALESAGES 3 DE CYLINDRES ET UNE ENVELOPPE D'EAU 6 ENTOURANT CEUX-CI, UNE PARTIE 2 DELIMITANT LE CARTER MOTEUR VENUE DE MATIERE AVEC LA PARTIE 1 ET COMPORTANT PLUSIEURS PAROIS 7 PORTANT DES PALIERS, ESPACEES DANS LA DIRECTION DANS LAQUELLE SONT DISPOSES LES ALESAGES DES CYLINDRES, DES EVIDEMENTS SUR LES COTES OPPOSES DES PARTIES DELIMITANT LES CYLINDRES ET LE CARTER MOTEUR, ENTRE LES ALESAGES ADJACENTS 3 DES CYLINDRES, CES EVIDEMENTS SE TROUVANT ENTRE L'ENVELOPPE D'EAU 6 ET LES PAROIS 7 FORMANT DES PALIERS, ET UNE SERIE DE SYSTEMES 9 DE NERVURES DE RENFORCEMENT SUR LES COTES OPPOSES DU BLOC, CHAQUE SYSTEME DE NERVURES ENTOURANT L'UN DES EVIDEMENTS. THIS CYLINDER BLOCK INCLUDES A PART 1 DELIMING CYLINDERS, HAVING A SERIES OF 3 CYLINDERS BALEAGES AND A WATER ENCLOSURE 6 SURROUNDING THEM, PART 2 DELIMING THE ENGINE CRANKCASE COMING FROM PART WITH PART 1 AND CONTAINING SEVERAL WALLS 7 BEARING BEARINGS, SPACED IN THE DIRECTION IN WHICH THE BORES OF THE CYLINDERS ARE LOCATED, RECESSES ON THE OPPOSITE SIDES OF THE PARTS DELIMING THE CYLINDERS AND THE CRANKCASE, BETWEEN THE ADJACENT BORES 3 OF THE CYLINDERS, THESE RECESSES LOCATED BETWEEN THE WATER ENVELOPE 6 AND THE WALLS 7 FORMING LEVELS, AND A SERIES OF SYSTEMS 9 OF REINFORCING RIBS ON THE OPPOSITE SIDES OF THE BLOCK, EACH SYSTEM OF RIBS SURROUNDING ONE OF THE RECESSES.

Engine cooling structure

Combined IC engine and air compressor - has air cushion cylinder to reverse direction at end of stroke between combustion and compression cylinders

The combined internal combustion engine and air compressor has a common cylinder block (1) containing an engine cylinder (5), a compressor cylinder (40) and an air cushion cylinder (38). The engine is started, by supplying compressed air to the air cushion cylinder, which drives the engine cylinder (2) to the left to make its compression stroke as the compressor piston (3) draws in air through the valve (16). The charge in the engine cylinder (5) is fired, and the piston moves to the right, compressing the air in the compressor cylinder (40). When the engine piston has uncovered the port (8), the rise in pressure in the air cushion cylinder reverses the piston direction.

Internal combustion engine with cushioned skirts and large bowl.

Patent FR2727727B1

ENGINE CYLINDER BOX WITH CARTER GAS DRAIN CIRCUIT AND OIL RECYCLING SYSTEM.

L'invention concerne un carter ou bloc-cylindres pour un moteur à combustion interne de type quelconque, par exemple du type à cylindres en V ou en ligne. Ce carter supérieur (1) comporte des conduits internes (7, 8) qui relient la partie supérieure (143) du carter à des compartiments inférieurs (5) séparant des paliers (12) de vilebrequin, ces conduits permettant l'évacuation des gaz du carter et le recyclage de l'huile moteur et débouchant dans une chambre (9) de forme aplatie, cette chambre et les conduits internes formant un circuit (C) venu de fonderie. L'invention s'applique notamment à l'industrie automobile. The invention relates to a crankcase or cylinder block for an internal combustion engine of any type, for example of the V-cylinder or in-line type. This upper casing (1) comprises internal conduits (7, 8) which connect the upper part (143) of the casing to lower compartments (5) separating the crankshaft bearings (12), these conduits allowing the evacuation of gases from the crankshaft. crankcase and recycling the engine oil and opening into a chamber (9) of flattened shape, this chamber and the internal ducts forming a circuit (C) coming from the foundry. The invention applies in particular to the automotive industry.

WATER COOLING CIRCUIT OF A V-ENGINE, ESPECIALLY FOR AN OUTBOARD ENGINE ASSEMBLY

MOTEUR A DEUX TEMPS, A BLOC-CYLINDRES EN V, A COMPRESSION DANS LE CARTER-MOTEUR, A REFROIDISSEMENT PAR EAU. IL COMPORTE DES CHEMISES EXTERIEURES 37 DE REFROIDISSEMENT DES CYLINDRES DISPOSEES DE CHAQUE COTE, A L'EXTERIEUR DU V, AU VOISINAGE DU CARTER-MOTEUR SITUE A LA POINTE DU V, UN PASSAGE DE REFROIDISSEMENT CENTRAL 27 DISPOSE ENTRE LES CYLINDRES 16 ET LA TUBULURE D'ECHAPPEMENT 23, DES CHEMISES DE REFROIDISSEMENT SUPERIEURES 36 QUI ENTOURENT LE SOMMET DE CHAQUE RANGEE DE CYLINDRES ET UNE CHEMISE 39 DISPOSEE AU-DESSUS DE LA TUBULURE D'ECHAPPEMENT ET QUI SERT A PRECHAUFFER L'EAU AVANT DE L'ENVOYER DANS LES AUTRES CHEMISES. APPLICATION A UN ENSEMBLE MOTEUR HORS-BORD.

EXHAUST MANIFOLD FOR INTERNAL COMBUSTION ENGINE

INTERNAL COMBUSTION ENGINE WITH AIR INTAKE DEVICE INTEGRATED IN THE CYLINDER HEAD.

L'invention propose un moteur à combustion interne du type comportant au moins une culasse (14) à plusieurs cylindres alignés, un dispositif d'admission d'air comportant un boîtier de répartition de l'air d'admission auxquels sont raccordés un tube d'entrée d'air et au moins un conduit d'admission dont la sortie est reliée à une tubulure d'admission formée dans la culasse (14), caractérisé en ce qu'il comporte un couvercle de culasse (16) monté sur la face supérieure (48) de la culasse (14) et qui comporte des cloisons (58, 60) qui en divisent la cavité interne en compartiments (62) pour constituer au moins partiellement ledit dispositif d'admission, et qui débouchent dans la face inférieure (50) du couvercle de culasse (16) pour coopérer avec des alvéoles (68) formés en regard dans la face supérieure (48) de la culasse (14). The invention provides an internal combustion engine of the type comprising at least one cylinder head (14) with several aligned cylinders, an air intake device comprising an intake air distribution box to which an air tube is connected. 'air inlet and at least one intake duct, the outlet of which is connected to an intake manifold formed in the cylinder head (14), characterized in that it comprises a cylinder head cover (16) mounted on the face upper (48) of the cylinder head (14) and which comprises partitions (58, 60) which divide its internal cavity into compartments (62) to at least partially constitute said intake device, and which open into the lower face ( 50) of the cylinder head cover (16) to cooperate with cells (68) formed opposite in the upper face (48) of the cylinder head (14).

THERMAL ENGINE FOR A MOTOR VEHICLE EQUIPPED WITH A COMPRESSOR AIR CONDITIONING DEVICE

Le moteur thermique pour véhicule automobile comprend un compresseur (4) fixé au bloc (1) dudit moteur, ce compresseur (4) comprenant un boîtier métallique renfermant un organe de compression entraîné en rotation par le moteur. Le boîtier métallique du compresseur est réalisé d'une seule pièce avec le bloc moteur (1) par moulage de celui-ci, de sorte qu'une partie de la paroi dudit boîtier est commun avec la paroi du bloc moteur (1). The heat engine for a motor vehicle comprises a compressor (4) fixed to the block (1) of said engine, this compressor (4) comprising a metal casing enclosing a compression member driven in rotation by the engine. The metal case of the compressor is made in one piece with the engine block (1) by molding the latter, so that part of the wall of said housing is common with the wall of the engine block (1).

INTERNAL COMBUSTION ENGINE WITH IMPROVED COOLING CIRCUIT.

La présente invention concerne un moteur à combustion interne possédant un circuit de refroidissement perfectionné. Le circuit dans lequel circule le liquide pour le refroidissement du bloc-cylindres 1 et de la culasse 2 comporte successivement un orifice d'entrée 16 ayant son axe perpendiculaire à l'alignement des cylindres, un évidement annulaire 34 dans la chemise de cylindre 28, des cheminées de communication 22-23 et 24-25, des canaux de circulation 36, et un orifice de sortie 18 de diamètre inférieur à l'orifice d'entrée 16, et situé sur la même face du moteur. Ce moteur, à titre principal ou auxiliaire, trouve son application pour la traction de tous types d'engins ou pour l'entraînement de machines pouvant de préférence fonctionner à régime constant. The present invention relates to an internal combustion engine having an improved cooling circuit. The circuit in which the liquid circulates for cooling the cylinder block 1 and the cylinder head 2 successively comprises an inlet port 16 having its axis perpendicular to the alignment of the cylinders, an annular recess 34 in the cylinder liner 28, communication ducts 22-23 and 24-25, circulation channels 36, and an outlet orifice 18 of smaller diameter than the inlet orifice 16, and located on the same face of the engine. This engine, as a main or auxiliary, finds its application for the traction of all types of machinery or for driving machines which can preferably operate at constant speed.

ARRANGEMENT OF CAMSHAFT IN THE CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE.

Agencement d'arbre à cames comprenant des demi-paliers supérieurs (7) et des demi-paliers inférieurs (8) assemblés les uns aux autres au moyen de vis (9), et un couvre-culasse (6) de recouvrement de l'ensemble fixé à la culasse. Les demi-paliers supérieurs sont venus de matière avec le couvre-culasse. Camshaft arrangement comprising upper half-bearings (7) and lower half-bearings (8) assembled to each other by means of screws (9), and a cylinder head cover (6) for covering the assembly attached to the cylinder head. The upper half-bearings are integral with the cylinder head cover.

Internal combustion engine with cushioned skirts and large bowl.

Le moteur à combustion interne comprend une culasse (1), un bloc cylindre (2) allongé, des paliers (3) de vilebrequin en dessous du bloc cylindre, et un carter d'huile (8). Le bloc cylindre se prolonge vers le bas par deux jupes latérales pendantes (4) qui n'entrent pas directement en contact avec les paliers de vilebrequin. Les paliers de vilebrequin présentent des chapeaux de paliers (3b) qui sont reliés mécaniquement les uns aux autres par deux barres de rigidification (6) parallèles. Le carter d'huile (8) est sous forme d'une grande cuvette fixée, découplée, sur deux brides latérales (2c) le long du bloc cylindre au dessus des jupes pendantes.

IC engine exhaust duct

Dispositif d'échappement pour moteur à combustion interne multicylindre comprenant des conduits d'échappement (4) ménagés dans la culasse (1) du moteur, un collecteur d'échappement (8) et une ligne d'échappement munie d'un pot catalytique, chacun desdits conduits d'échappement (4) mettant en communication une chambre de combustion (3) avec la face latérale d'échappement (10) de la culasse (1) sur laquelle vient se fixer le collecteur d'échappement (8), caractérisé en ce que lesdits conduits d'échappement (4) débouchent dans une capacité de volume adapté, ladite capacité étant divisée en deux parties (7, 14) portées respectivement par la culasse (1) et le collecteur d'échappement (8).

CYLINDER HEAD GASKET FOR INTERNAL COMBUSTION ENGINE HAVING CYLINDER HEAD GASKET BY COMBUSTION CHAMBER.

Internal combustion engine with several intake valves per cylinder.

L'invention propose un moteur du type comportant pour chacun de ses cylindres (50): - une culasse (42) qui forme couvercle au-dessus de la partie supérieure (48) du cylindre (50) et qui comporte une chambre de combustion (10) du cylindre qui communique directement avec l'extrémité supérieure (48) du cylindre (50); - une première (20) et une seconde (22) soupapes d'admission d'air frais qui débouchent toutes les deux (20, 22) dans la chambre de combustion (10); - une soupape d'échappement de gaz qui s'ouvre dans la chambre de combustion (10); et - une bougie d'allumage (28) montée à travers la paroi de la chambre de combustion (10) et dirigée vers l'intérieur de la chambre; Caractérisé en ce que le fond de la paroi de la chambre de combustion (10), opposé à l'extrémité supérieure (48) du cylindre (50), comporte une cavité (11) dans laquelle débouche la seconde soupape d'admission (22). The invention proposes an engine of the type comprising for each of its cylinders (50): - a cylinder head (42) which forms a cover above the upper part (48) of the cylinder (50) and which comprises a combustion chamber ( 10) of the cylinder which communicates directly with the upper end (48) of the cylinder (50); - a first (20) and a second (22) fresh air intake valves which both open (20, 22) into the combustion chamber (10); - a gas exhaust valve which opens into the combustion chamber (10); and - a spark plug (28) mounted through the wall of the combustion chamber (10) and directed towards the interior of the chamber; Characterized in that the bottom of the wall of the combustion chamber (10), opposite the upper end (48) of the cylinder (50), has a cavity (11) into which the second inlet valve (22) opens. ).

OSCILLATING PLATE COMPRESSOR

Ce compresseur comprend des pistons à double effet qui coulissent dans des cylindres répartis en couronne autour d'un axe central et entraînés par un plateau oscillant 18 lui-même entraîné par un arbre 20. Trois cylindres sont enfermés dans une enveloppe extérieure 12 ménageant des espaces libres entre eux-mêmes et cette enveloppe. Dans l'espace libre supérieur on introduit un mélange de gaz réfrigérant et de lubrifiant. Le gaz réfrigérant entraîne avec le lubrifiant s'en dégage sur les cylindres chauffés et refroidit ces derniers cependant que le lubrifiant ainsi libéré est entraîné par le courant de gaz et frappe les faces du plateau oscillant 18 pour lubrifier les interfaces entre ce plateau et des patins ou demi-rotules 36, 36'. En même temps, le lubrifiant descend dans les paliers de butée à aiguilles 40 et 42 et vient lubrifier les paliers radiaux 22 et 24. Le gaz passe dans les espaces libres inférieurs pénètre de là dans les chambres d'aspiration 56 et 58 d'où il est aspiré par les pistons puis refoulé dans les chambres de refoulement 60 et 62. Ce compresseur est particulièrement prévu pour les installations de climatisation à bord des véhicules. This compressor comprises double-acting pistons which slide in cylinders distributed in a crown around a central axis and driven by a swash plate 18 itself driven by a shaft 20. Three cylinders are enclosed in an outer casing 12 leaving spaces free between themselves and this envelope. In the upper free space, a mixture of refrigerant gas and lubricant is introduced. The refrigerant gas entrains with the lubricant released on the heated cylinders and cools the latter while the lubricant thus released is entrained by the gas stream and strikes the faces of the swash plate 18 to lubricate the interfaces between this plate and the pads or half-ball joints 36, 36 '. At the same time, the lubricant descends into the needle thrust bearings 40 and 42 and lubricates the radial bearings 22 and 24. ...

JUMPER-TYPE CYLINDER BLOCK BRAKE AND APPARATUS FOR MOLDING THE SAME

EBAUCHE DE BLOC-CYLINDRE DU TYPE JUMELE SM DANS LAQUELLE UNE CHEMISE 3 EN FONTE EST MOULEE, LORS DE LA COULEE D'UN METAL EN FUSION SOUS PRESSION, DANS CHAQUE CORPS DE CYLINDRE 1, 1, 1, 1 D'UN CORPS DE CYLINDRES DE TYPE JUMELE 1, DE TELLE FACON QUE CHAQUE CHEMISE MOULEE PRESENTE EN COUPE UNE CONFIGURATION SENSIBLEMENT OVALE A GRAND AXE PARALLELE A LA DIRECTION DE SUCCESSION DES CORPS DE CYLINDRE PAR SUITE DE L'ENCAISSEMENT DE LA FORCE DE RETRAIT DE SOLIDIFICATION DE CHAQUE CORPS DE CYLINDRE. L'INVENTION A EGALEMENT POUR OBJET UN APPAREIL DE MOULAGE DE L'EBAUCHE COMPRENANT UN MOULE M PRESENTANT UNE CAVITE DE MOULE DE CORPS DE CYLINDRES DE TYPE JUMELE CA, UN MECANISME DE DILATATION 41 DE LA CHEMISE ET UNE PAIRE D'ORGANES D'ETANCHEITE 22, 48. BLOCK BLOCK OF THE TWIN TYPE SM IN WHICH A CAST IRON 3 IS MOLDED, WHEN CASTING A MOLTEN METAL UNDER PRESSURE, IN EACH CYLINDER BODY 1, 1, 1, 1 OF A BODY OF CYLINDERS TWIN TYPE 1, SUCH AS EACH MOLDED SHIRT SHOWS A SENSITIVELY OVAL CONFIGURATION IN CUT WITH LARGE AXIS PARALLEL TO THE DIRECTION OF SUCCESSION OF THE CYLINDER BODIES AS A RESULT OF THE COLLECTION OF THE SOLIDIFICATION WITHDRAWAL FORCE OF EACH CYLINDER BODY . THE SUBJECT OF THE INVENTION ALSO IS AN APPARATUS FOR MOLDING THE BLANKET COMPRISING A MOLD PRESENTING A CAVITY OF JUMELE TYPE CYLINDER BODY MOLD CAVITY, AN EXPANSION MECHANISM 41 OF THE SHIRT AND A PAIR OF SEALING PARTS 22, 48.

"SEMI-CLOSED TABLATURE CYLINDER BLOCK OBTAINED BY PRESSURE INJECTION MOLDING"

L'invention concerne un bloc-cylindres (1) d'un moteur de véhicule automobile comprenant un bloc (2) qui comporte au moins un cylindre (3) qui débouche dans une face (4) supérieure, et au moins un canal (5) ouvert dans la face (4) supérieure et qui entoure au moins partiellement le cylindre (3), dans lequel, la face (4) supérieure du bloc (2) comporte au moins un logement (6) primaire à cheval sur le canal (5) et qui s'étend sur une profondeur axiale inférieure à celle du canal (5), et dans lequel le logement (6) primaire reçoit un élément complémentaire (7) primaire rapporté de rigidification fixé à des faces du logement (6) primaire. The invention relates to a cylinder block (1) of a motor vehicle engine comprising a block (2) which comprises at least one cylinder (3) which opens into an upper face (4) and at least one channel (5). ) open in the upper face (4) and at least partially surrounding the cylinder (3), wherein, the upper face (4) of the block (2) comprises at least one housing (6) primary straddling the channel ( 5) and which extends over an axial depth less than that of the channel (5), and wherein the primary housing (6) receives a complementary primary element (7) reported stiffening attached to the faces of the housing (6) primary .

INTERNAL COMBUSTION ENGINE INCLUDING A FIBER REINFORCED AREA CYLINDER BLOCK AND SLIDING SEGMENT PISTONS IN THE BORE OF THE CYLINDER

CRANKCASE.

Internal combustion engine with injector - having jet displaceable relative to and simultaneously with injector

Combustion engine comprises a work chamber, means for treating the inlet and exhaust fluids, and an injector assembly which provides the engine with part of the charge and which has two or more separate fluid supply systems. Specifically, the engine comprises a jet which can be displaced relative to the injector assembly, this movement being at least partly simultaneous with injection of fluid. The jet movement is imparted at least partly by pressure or force associated with fluid injection, and may be rotational, reciprocating or telescopic. Ignition may be by an intermittent spark, or by an intermittent arc (plasma ignition). Operation allows purification of exhaust gases, and conservation of fuel and of the power generated.

I.C. engine manifold for connecting exhaust pipe inlet to outlet of exhaust passages in cylinder head

The manifold comprises an oblong casing (5) having a large internal cavity with several passages. These internal passages receive the exhaust gases from the outlet passages of a cylinder head (1), and are positioned to correspond with them. The gases freely circulate between the internal passages passing through the casing side wall. The manifold has a single outlet opening (7) connected to the exhaust pipe.The cavity has a transverse cross section greater than four times the cross section of one of the inlet passages. The cavity progressively increases between the longitudinal end opposite the end where the outlet open is located. The side wall through which the passages pass forms a fixing flange for mounting on the cylinder head (1).

OSCILLATING PLATE COMPRESSOR

CYLINDER BLOCK FOR INTERNAL COMBUSTION ENGINE WITH ALUMINUM WATER SHIRT.

LA INVENCION SE REFIERE A UN BLOQUE DE CILINDRO PARA UN MOTOR DE EMBOLOS CON AL MENOS UN CILINDRO, QUE MUESTRA UN BLOQUE (1) BASICO CONFIGURADO A PARTIR DEL CASQUILLO (2) DE DESARROLLO, DE LA RECEPCION (3) DE COJINETE DE CIGUEÑAL Y DEL PIE (5) DE MOTOR, ELABORANDOSE EN UNA SOLA PIEZA EN ARRASTRE DE MATERIAL A BASE DE FUNDICION GRIS, Y CON UNA ENVOLTURA (6) DE ALUMINIO CONFIGURADA EN LA ZONA DEL CASQUILLO (2) DE DESARROLLO COMO CUBIERTA (7) DE AGUA DE REFRIGERACION. THE INVENTION REFERS TO A CYLINDER BLOCK FOR A SPROCKET ENGINE WITH AT LEAST ONE CYLINDER, WHICH SHOWS A BASIC BLOCK (1) CONFIGURED FROM THE DEVELOPMENT BUSHING (2), OF THE RECEPTION (3) OF THE CRANKSHAFT BEARING AND OF THE MOTOR FOOT (5), ELABORATING IN A SINGLE PIECE IN DRAG OF MATERIAL BASED ON GRAY CASTING, AND WITH A WRAP (6) OF ALUMINUM CONFIGURED IN THE AREA OF THE DEVELOPMENT BUSHING (2) AS WATER COVER (7) OF REFRIGERATION.

Manufacture of cylinder block and die casting die

(57)【要約】 【課題】 クローズドデッキ・ウエットライナ形のシリ ンダブロックをダイカスト法を用いて容易に製造できる ようにする。 【解決手段】 芯金22をインサート部材６に嵌合させた ボア入子15を可動型14にセットする。固定型13と可動型 14とを型締して、ボア入子15およびインサート部材６を キャビティ内に固定する。溶湯を鋳込んで、インサート 部材６を鋳包んだシリンダブロック本体を鋳造する。鋳 造品からボア入子15を分離した後、インサート部材６に シリンダライナを圧入してクローズドデッキ・ウエット ライナ形のシリンダブロックを得る。インサート部材６ を鋳包むことにより、アンダーカット部が解消してダイ カスト法による鋳造が可能となる。芯金22を可動型14か ら分離したので、金型の熱膨張の影響を受けずに芯金22 をインサート部材６に容易に嵌合させることができ、金 型の冷却時間を短縮して生産性を向上させることができ る。

Internal combustion engine with improved cooling system

Process for manufacturing siamese-type cylinder block

ABSTRACT OF THE DISCLOSURE A process for manufacturing a siamese-type cylinder block which is disclosed herein comprises a blank making step of providing a cylinder block blank in which a sleeve made of a cast iron is cast in each cylinder barrel of a siamese-type cylinder barrel made of an aluminum alloy and consisting of a plurality of cylinder barrels connected in series, and a mechanically working or machining step of forming the inner peripheral surface of each sleeve of the cylinder block blank into a true circle. The process is characterized in that the blank making step includes placing highly rigid sleeves each having a thickness set as large as 10% or more of the inner diameter thereof into a siamese-type cylinder barrel molding cavity in a mold and then pouring a molten metal of aluminum alloy under a pressure into the cavity to effect a casting. The sleeve is cast-in as it is at an ambient temperature or in a heated state. A cylinder block blank resulting from the casting-in of sleeves at an ambient temperature is subjected to a thermal tratment for reducing the casting strain in each cylinder barrel.

Cylinder crankcase and method of making same

Die Erfindung betrifft ein Verfahren zur Herstellung eines Zylinderkurbelgehäuses (2) und umfasst folgende Schritte: - Herstellen eines Kerns (4), - Einlegen des Kernes (4) in ein Gießwerkzeug, - Gießen des Zylinderkurbelgehäuses (2) unter erhöhtem Druck und unter Verwendung eines Leichtmetalls, - Herauslösen des Kernes (4) aus dem gegossenen Zylinderkurbelgehäuse (2), - Beschichten einer Zylinderwand (6) durch ein thermisches Spritzverfahren. The invention relates to a method for producing a cylinder crankcase (2) and comprises the following steps: - producing a core (4), - inserting the core (4) into a casting tool, - casting the cylinder crankcase (2) under increased pressure and using a Light metal, - Removal of the core (4) from the cast cylinder crankcase (2), - Coating a cylinder wall (6) by a thermal spraying process.

Cylinder block design for providing improved cooling performance of liners

ENGINE CYLINDER CRANKCASE WITH CRANKCASE GAS AND OIL RECYCLING CIRCUIT.

reciprocating engine

Hubkolbenmaschine mit einem Zylinderblock (4), der einen oder mehrere Zylinder (2) aufweist, wobei jeder Zylinder (2) jeweils einen zugehörigen Kolben (10) hin und her gehend aufnimmt und jeweils durch einen Zylinderlauf (8) definiert ist, der mit dem Restbereich des Zylinderblocks (4) einstöckig ausgebildet ist, und die äussere Oberfläche jedes Zylinderlaufs (8) eine Mehrzahl von im wesentlichen umlaufenden, Versteifungsrippen trägt, wobei jede Rippe eine Mehrzahl längserstreckter Vorsprünge (12) aufweist, die durch Lücken voneinander beabstandet sind, und in Richtung der Länge des zugehörigen Zylinderlaufs (8) gesehen jeder Vorsprung (12) in jeder Rippe fluchtend zu einer Lücke (14) der oder jeder benachbarten Rippe angeordnet ist. reciprocating engine with a cylinder block (4) which has one or more cylinders (2) Each cylinder (2) has an associated piston (10) picks up and down through a cylinder barrel (8) is defined, which with the remaining area of the cylinder block (4) story is trained, and the outer surface each cylinder barrel (8) has a plurality of essentially revolving, Stiffening ribs, where each rib is a plurality of elongated projections (12) has gaps are spaced from each other, and in the direction of the length of the associated Cylinder barrel (8) seen each projection (12) in alignment in each rib to a gap (14) the or each adjacent rib is arranged.

IC engine with crankshaft fixed in cylinder block above bearing caps

Swash-plate compressor

Metallic cylinder head gasket

The invention relates to a metallic cylinder head gasket for an internal combustion engine, having a carrier plate which is arranged between cover plates. The carrier plate and cover plates are provided with passages which are commensurate with the combustion chambers of the internal combustion engine. The cover plates are provided, around each passage, with a resilient bead. Adjacent to each bead, and also extending around each passage, is a bead deformation limiter. The deformation limiters are shaped to prevent the occurrence of high edge pressures.

Patent FR2311101B1

Two part light metal coating and method of making same

A cylinder-liner blank which preferably consists of a hypereutectic aluminum/silicon alloy and is cast into a crankcase. A special surface treatment achieves better material bonding of the liner in the crankcase. The blank has a roughness of 30 to 60 μm on its outside, in the form of pyramid-like or lancet-like protruding material scabs or material accumulations. To obtain this roughness, the surface is blasted with particles which are broken so as to have sharp edges and consist of a brittle hard material, preferably high-grade corundum, with an average grain size of about 70 μm. A fine fraction is formed and is continuously separated off. The average grain size is maintained by adding new particles.

Insert member for cylinder block and cylinder block

Internal combustion engine

ABSTRACT OF THE DISCLOSURE An internal combustion engine having a cylinder block made of a light-alloy with a cylinder wall around a cylinder bore including a cylindrical fiber-reinforced portion which is formed of a mixture of an alumina-based fiber and a carbon fiber with a light-alloy matrix. The alumina-based fiber has a fiber volume fraction set in a range of 8 to 20%, and the carbon fiber has a fiber volume fraction set in a range of 0.3 to 15%. The aluminba-based fiber contains 25% or less, by weight, of silica, has an average aspect ratio of 20 to 150, and an alpha rate of 2 to 60%. The carbon fiber has an average aspect ratio set in a range of 10 to 100 and a Young's modulus set in a range of 20 to 30 t/mm . The piston for the cylinder bore has an iron-plated layer covered by a tin-plated layer. The piston rings for the piston may by of austenitic stainless steel to provide thermal expansion characteristics similar to the cylinder wall and may be provided with a nitride or chromium-plated layer.

Internal combustion engine

複数のシリンダ♯１−♯４を取り巻くように形成された環状冷却水通路１６を備える。シリンダブロック１０に比して大きな熱膨張係数を有し、環状冷却水通路１６を第１通路２２と第２通路２４とに区分する２つの仕切部材１２，１４を備える。第１通路２２は、シリンダブロック１０の長手方向に延びる長手方向ボアセンター面の一方側に主として延在し、第２通路２４は、その他方の側に主として延在する。第１通路２２に通じるインレットと、第２通路２４に通じるアウトレットを設ける。第１通路２２及び第２通路２４の双方に開口する冷却水通路を備えるシリンダヘッドを、シリンダブロック１０に装着する。シリンダブロック１０及び仕切部材１２，１４は、内燃機関の暖機時に両者間に作用する応力が、仕切部材１２，１４の破壊応力に到達しないように形成されている。 An annular cooling water passage 16 formed so as to surround the plurality of cylinders # 1- # 4 is provided. Two partition members 12 and 14 that have a larger thermal expansion coefficient than the cylinder block 10 and divide the annular cooling water passage 16 into a first passage 22 and a second passage 24 are provided. The first passage 22 mainly extends on one side of the longitudinal bore center surface extending in the longitudinal direction of the cylinder block 10, and the second passage 24 mainly extends on the other side. An inlet that leads to the first passage 22 and an outlet that leads to the second passage 24 are provided. A cylinder head having a cooling water passage that opens in both the first passage 22 and the second passage 24 is mounted on the cylinder block 10. The cylinder block 10 and the partition members 12 and 14 are formed so that the stress acting between them when the internal combustion engine is warmed up does not reach the breaking stress of the partition members 12 and 14.

Welding type aluminum cylinder block for deck reinforcement