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| Number | Title | Issue Date |
| 7823284 | Masking an engine block during coating application Embodiments of the invention use a gas flow to prevent adherence of a coating to portions of an engine block adjacent to a cylinder bore being coated with the coating. Embodiments may be particularly useful for applying a coating on the inner surface of the cylinder... | 11/02/2010 |
| 7555837 | Spray coating method and spray coating device A cylinder block has at least two cylinder banks each having cylinder bores arranged in at least two directions relative to an axis for a crankshaft. A rotator on which the cylinder block is securely disposed has a convex rounded surface. When the rotator rotates, t... | 07/07/2009 |
| 7398596 | Production method of water jacket spacer A production method of a water jacket spacer for use in a cylinder block with a water jacket formed around plural cylinder bores. The method comprises the fist step of integrally forming a tubular spacer body with a peripheral wall and a connecting bridge by way of ... | 07/15/2008 |
| 7392771 | Cylinder block and cylinder sleeve, method of producing cylinder block and cylinder sleeve by friction stir welding, and friction stir welding method A cylinder sleeve for being inserted in a cylinder bore defined in a block body of a cylinder block for an internal combustion engine. The cylinder bore includes a first annular recess and a second annular recess, and projecting walls. The cylinder sleeve comprises ... | 07/01/2008 |
| 7337756 | Cylinder liner for internal combustion engine A coolant groove-type internal combustion engine has a cylinder block that includes a frame having at least one longitudinal surface and a lateral member transverse to the longitudinal surface, the lateral member defining a coolant passage therethrough, wherein the ... | 03/04/2008 |
| 7334546 | Cylinder liner A ductile repair cylinder liner for a diesel engine, the cylinder liner having an additional cooling groove with a parabolic varying cross-section machined into the outer surface of the cylinder liner immediately below the radially extending locating flange for the ... | 02/26/2008 |
| 7305763 | Hydroformed port liner A cylinder head (10) for an internal combustion engine has hydroformed port liners (18) positioned within selected ports, either exhaust and/or intake ports (14, 16). The hydroformed port liner (18) includes an air gap (24) for an ... | 12/11/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7273029 | Cylinder liner and cylinder block A cast iron cylinder liner of the present invention includes a plurality of grooves formed on an outer surface of the cylinder liner. Each of the grooves extends in a circumferential direction of the cylinder liner in a ring or spiral shape, and the grooves divide t... | 09/25/2007 |
| 7270892 | Friction bearing The invention describes a friction bearing with a steel support shell and a lead-free bearing metal layer on the basis of copper with the main alloy elements of tin and zinc, which layer is applied to the support shell. In order to combine advantageous sliding prope... | 09/18/2007 |
| 7240608 | Cylinder liner for a cylinder crankcase A cylinder liner (2) for a cylinder block has a contouring (6) at one end. The contouring (6) serves to support the liner (2) on a sleeve (4) inside a die-casting tool. When the liner (2) is cast in, recesses (10) of ... | 07/10/2007 |
| 7226667 | Cast-iron insert and method of manufacturing same A cylinder liner has an outer circumferential surface around which another metal is to be cast. The cylinder liner also has a plurality of protrusions disposed on the outer circumferential surface and having respective substantially conical undercuts or necks which ... | 06/05/2007 |
| 7197809 | Method for fabricating an helical stranded cable, particularly for mechanical motion transmission, and cable produced by that method A method for fabricating a stranded cable particularly for mechanical motion transmission, which cable is composed of multiple strands or wires, helically wound around a common longitudinal axis, including the steps of: a—winding... | 04/03/2007 |
| 7192260 | Progressive cavity pump/motor stator, and apparatus and method to manufacture same by electrochemical machining Electrochemical machining is used to generate the helical lobe profiles of the stator of a progressive cavity pump or motor. A thin, elastomeric liner, of uniform thickness is bonded either to the interior of the stator, or to the exterior of the rotor. Where the el... | 03/20/2007 |
| 7191880 | Over-running clutch pulley with increased surface microhardness The over-running clutch pulley (10) of a preferred embodiment of the invention includes a sheave member (20), a hub member (22) located substantially concentrically within the sheave member, and a clutch member (24), which cooperate to ro... | 03/20/2007 |
| 7174868 | Resin cylinder head cover A resin cylinder head cover includes an attaching portion and a sleeve. The attaching portion is formed of resin, and is a portion of the cylinder head cover to which the oil control valve is to be attached. The sleeve is embedded in the attaching portion. The sleev... | 02/13/2007 |
| 7171935 | Engine cylinder liner construction An engine cylinder liner construction in which a cylinder liner that is cast into a cylinder block has a tubular portion and a number of spines integrally formed on an outer surface of the tubular portion, the engine cylinder liner construction includes a chamfered ... | 02/06/2007 |
| 7165597 | Insert core and method for manufacturing a cylinder for internal combustion engine by making use of the insert core There is provided a method of cast molding a cylinder for an internal combustion engine by making use of an insert core, which makes it possible to rationally form the chamfered portions at the rim portion, on the cylinder bore side, of the scavenging ports, the suc... | 01/23/2007 |
| 7162798 | Ported engine cylinder liner with selectively laser-hardened and induction-hardened bore Selective laser and induction hardening are applied to areas of a water jacketed engine cylinder liner to provide improved resistance to scuffing resulting from the rubbing contact of the walls and piston rings of an associated piston. An upper bore portion and port... | 01/16/2007 |
| 7137185 | Tool holder for shrink-fit attachment of rotating tools with predominantly cylindrical shafts The invention relates to a tool holder (10) for shrink-fit attachment of rotating tools (11) with predominantly cylindrical shafts (12), having a chuck (13) with a clamping section (14) containing a conical receiving bore (15 | 11/21/2006 |
| 7121243 | Valve case and resin cylinder head cover A valve case includes an attaching portion and a sleeve. The valve case is attached to a cylinder head cover main body formed of resin. The attaching portion is formed of resin and is a portion of the valve case to which an oil control valve is to be attached. The s... | 10/17/2006 |
| 7104240 | Internal combustion engine with localized lubrication control of combustion cylinders An internal combustion engine includes at least one cylinder block having at least one combustion cylinder. A number of cylinder liners are respectively associated with each combustion cylinder. Each cylinder liner defines a corresponding cylinder inside surface. Ea... | 09/12/2006 |
| 7093341 | Method of making an axial piston pump barrel with a cast high pressure collection cavity In an axial piston pump, a plurality of reciprocating pistons are at least partially positioned within a barrel. The barrel includes a ring shaped high pressure collection cavity that is positioned between the piston chambers and the outlet of the pump. In order to ... | 08/22/2006 |
| 7089662 | Method for surface treatment of the interiors of engine cylinder bores, and cylinders made by said method A method for surface treatment of the interiors of hollow bodies, especially cylinder bores, in preparation for the application of a thermally sprayed layer. The method comprises dry cutting without a lubricant or with a shortage of lubricant using a tool having a d... | 08/15/2006 |
| 7028653 | Roller rocker mounting mechanism A roller rocker mounting mechanism for an internal combustion engine valve actuating mechanism includes a first rocker stand having a first locating boss and a second rocker stand having a second locating boss. An indexing link has a first portion separably attachab... | 04/18/2006 |
| 7003877 | Cylinder liner remover A novel apparatus and method to engage a liner in an cylinder of an engine is provided. A wedge and rod are utilized as part of a liner remover assembly to move at least one collet axially to engage the liner. In a preferred embodiment, a novel eyehook is provided a... | 02/28/2006 |
| 6973367 | Method for producing a bore In a method for machining bores of workpieces with a desired nominal shape of the bores in operative condition, a bore with a desired nominal shape in inoperative condition is produced in a workpiece and the workpiece is then put in operative condition. A deviation ... | 12/06/2005 |
| 6957489 | Method for producing a light-alloy bearing bush with a rough external surface The aim of the invention is to produce a light-alloy bearing bush with a rough external surface. To achieve this, particles, which are subsequently surrounded in part by the molten metal, are applied to the surface of the casting mould. When the bearing bush is rele... | 10/25/2005 |
| 6938670 | Method and apparatus for manufacturing supercharger rotor A method for manufacturing a supercharger rotor by casting a profile portion of a supercharger rotor and a shaft penetrating the same, having the steps of: first cutting a left and right helical cross portion on a surface of the shaft connected to the profile portio... | 09/06/2005 |
| 6877198 | Cylinder liner remover and installer A liner remover and installer assembly for a cylinder that includes a base having an opening to receive a rod with a tool at an end, an adjustment member and a support member. The support member can have an alignment feature adapted to mate with a dowel pin on an en... | 04/12/2005 |
| 6865807 | Cylinder block production method A cylinder block production method is characterized by having, as a step prior to a cast-enclosing step of cast-enclosing a cast iron-made cylinder liner within a cylinder block body, an erosion-wash step of washing an outer peripheral wall surface of the cylinder l... | 03/15/2005 |
| 6842979 | Method of producing a cylinder in a two-cycle engine A method is provided for producing a cylinder in a two-cycle engine. The cylinder bore is first machined as a preparation for the provision of a coating. The thereby resulting window edges that surround an inlet window are then at least partially chamfered. The cyli... | 01/18/2005 |
| 6802121 | Method for producing a cylinder block for an internal combustion engine Method for making a cylinder block for internal combustion engine, in which at least one cylinder liner (10) is arranged inside a mould and aluminium-based material is cast into the mould and cooled, so that the cylinder liner (10) is incorporated in t... | 10/12/2004 |
| 6748655 | Method for profiling the outer circumferential face of cylinder liners A method for producing, by forming techniques, an undercut profile in the outer circumferential face of cylinder liners to be cast in place in a crankcase, characterized by the introduction of a bracing inner core into the cavity of a cylinder liner, the introductio... | 06/15/2004 |
| 6729811 | Cutter tool for bore liners A trimmer is provided for trimming a newly-installed sleeve liner after the liner is positioned in a cylinder bore of a combustion engine component. The trimmer includes a trimming cutter adapted to shave off a protruding end of the newly-installed sleeve liner, and... | 05/04/2004 |
| 6640765 | Cylinder liner of an internal combustion engine In a cylinder liner of an internal combustion engine for casting into a light-metal crankcase to be cast, in order, during the casting in of the cylinder liner, to achieve as good a binding as possible of the cylinder liner to the surrounding casting mate... | 11/04/2003 |
| 6637108 | Method for manufacturing cylinder block for internal combustion engine A method for manufacturing a cylinder block provides an abrasion-resistant layer in a cylinder bore by build-up welding. The method applies build-up welding to preformed recesses along an inner surface of the cylinder bore. After build-up welding, final f... | 10/28/2003 |
| 6588318 | Hydraulic retention system for reciprocating pump cylinder liner A hydraulic system is provided for securing a cylinder liner to a pump module of a reciprocating pump, such as a mud pump. The hydraulic system includes a body attached to the pump module, a ram in sliding contact with the body and having a mating surface... | 07/08/2003 |
| 6543132 | Methods of making mud motors The present invention provides methods of forming mud motors. In one method, rollers are urgingly stroked against a tubular member having a mandrel therein that has an outer profile which is the inverse of the desired profile of the stator. In another met... | 04/08/2003 |
| 6519848 | Method for producing cylinder block A method for producing a cylinder block capable of providing sufficient bonding between the cylinder liner and a block body. The cylinder block producing method includes an inner peripheral surface roughening process, outer peripheral surface roughening p... | 02/18/2003 |
