Matches 1 - 47 out of 47


Match Document Document Title
7421782 Method for manufacturing internal combustion engine piston  
A method is provided for efficiently manufacturing a high quality internal combustion engine piston having an annular cavity allowing for good circulation of cooling fluid. An annular groove is...
7356925 Method for producing a cooled ring carrier  
The invention relates to a method for producing a cooled ring carrier (1) for an aluminium piston pertaining to an internal combustion engine and produced according to a casting method, comprising...
RE39070 Wear resistant coating for piston rings  
A wear resistant coating for protecting surfaces undergoing sliding contact is disclosed. The wear resistant coating is applied by high velocity oxygen-fuel (HVOF) deposition of a powdered blend of...
6887585 Thermally applied coating of mechanically alloyed powders for piston rings  
The invention relates to a wear-resistant coating used for bearing surfaces and flanks of piston rings in internal combustion engines. The wear-resistant inventive coating is obtained by...
6503642 Hard-chrome plated layer  
In an electrodeposited hard-chromium coat, particularly for a piston ring, which is substantially formed of an electrolyte containing hexavalent chromium, wherein there are cracks in the coat and...
6439351 Brake for a hydraulic vehicle brake system, sealing ring for such a brake and method for producing such a sealing ring  
A brake (10) for a hydraulic vehicle brake system has a housing (14) with a bore (18) which is formed therein and in which a brake piston (20) is received in a sealingly and slideably displaceable...
6199274 Method of making oil scraper piston rings  
A method of making an oil scraper piston ring includes the following steps of providing a base ring body including a circumferential web having flanks and an outer circumferential surface;...
6154958 Method of making piston rings  
A method of making piston rings includes the following steps: forming a base body on a mandrel by thermally spraying a metal on the mandrel; applying a low-friction coating to the base body;...
6053988 Method for making piston rings  
A method and apparatus for making a piston ring in which a metal strip having a first coefficient of expansion is coiled about a special mandrel having a second greater coefficient of expansion and...
5966807 Manufacturing piston rings  
A method of manufacturing piston rings from a tube blank includes cutting a longitudinal slot in the tube blank, applying a force to the tube blank so that the slot is at least partially closed and...
5743012 Piston and piston ring  
A method of reducing wear between the radial faces of a piston ring and the radial faces of the co-operating piston ring groove in an aluminium alloy piston is described. The method comprises the...
5531195 Piston ring  
A piston ring developed to prevent aluminum deposition and adhesion thereon is disclosed. The piston ring includes a ring-shaped piston ring main body including upper, lower, outer circumferential...
5516560 Method for coating rings, coating equipment and coating jig  
A plurality of piston rings 70 are set at intervals in the axial direction, on the outer circumference of a cylindrical member 6 of a coating jig 5. The coating jig 5 is supported to allow...
5469616 Method of manufacturing a side rail of a combined oil ring  
Each side rail of a combined oil ring, which includes a spacer-expander and two side rails, has an ion nitriding treatment layer on an outer peripheral surface of the rail. The inner peripheral...
5469777 Piston assembly having abradable coating  
A piston assembly operable within a fluid bathed, cylinder wall, comprising a piston body (10) having at least one annular land (36) adapted to be in close-fitting relationship to the cylinder wall...
5461776 Method of manufacturing piston rings  
A method for the manufacture of piston rings, includes the steps of producing a tube and machining the desired ring free shapes on the inner and outer diameters of the tube providing desired cross...
5449547 Hard coating material, sliding member coated with hard coating material and method for manufacturing sliding member  
A hard film 2 is applied to cover an outer circumferential surface of a piston ring 1 by an ion plating process. Either 3 percent to 20 percent by weight of oxygen, or 2 percent to 11 percent by...
5433001 Method of producing piston ring  
A method of producing a piston ring to be incorporated in an internal combustion engine includes first nitriding surfaces of a steel base material in a high temperature range and then continuously...
5430938 Method of making and using a piston ring assembly  
Method of making a piston ring assembly by providing a metallic (i.e. cast aluminum) piston with a crown and an annular depending side wall; machining a stepped annular groove in the side wall...
5405154 Piston ring  
A compression ring as a piston ring adapted to by received in an annular groove formed in a piston disposed in a cylinder assembly of an internal combustion engine includes an annular ring base...
5304262 Two-piece oil ring for use in internal combustion engine, steel wire of modified cross-section for use as material of the oil ring and method of producing the steel wire  
A two-piece oil ring, for use in an internal combustion engine, with the oil ring being made from a martensitic stainless steel material having high consisting essentially of more than 0.8 wt % but...
5241748 Method for manufacturing a compression ring  
A compression ring provided with both ends having notches is formed on outer peripheral surface with a plasma nitrided layer and is formed on upper and lower surfaces and an inner peripheral...
4651395 Manufacture of piston rings  
A method of treating piston rings to render their surfaces extremely hard-wearing, wherein the rings are assembled in batches on a tubular mandrel which is then surrounded by a matching cylinder,...
4218494 Process for coating a metallic surface with a wear-resistant material  
The surface of a metallic substrate is coated with wear-resistant material by depositing on the surface a layer of a mixture of a coating powder including a metallic carbide with powdery silicon...
4176434 Method of making piston rings with chrome-filled grooves  
A method of making piston rings comprising forming annular stepped grooves in the outer periphery of a plurality of piston ring blanks, stacking the blanks on a rotatable arbor, electro-depositing...
RE29899 Chrome insert ring  
A chrome insert ring including ring elements each having its outer peripheral surface formed with an annular groove. The chrome insert ring has a groove made with two symmetrical side walls having...
4085490 Method of making a rolled metal piston ring  
A rolled steel oil control piston ring for internal combustion engines is of generally U-shaped cross section with a pair of opposed rigid sidewalls projecting inwardly of the ring from a central...
4016635 Method of manufacturing piston sealing strips of rotary piston machines  
A method of manufacturing arcuate sealing strips for the pistons of rotary piston machines. The running surface on one face of the strip carries a wear-resistant hard layer.
3981155 Plasma deposited rider rings for hot displacer  
A hot cylinder for a cryogenic refrigerator having two plasma spray deposited rider rings of a corrosion and abrasion resistant material provided in the rider ring grooves, wherein the rider rings...
3900200 Scuff resistant sliding member  
A sliding member, such as a piston ring or cylinder liner, has a scuffing and abrasion resistant surface layer produced by spraying Fe3 O4 on the surface of the base body for the sliding member.
3875634 Process for producing an oil seal to be applied to the rotary piston engine  
A process for producing an oil seal for use in a rotary piston engine, which comprises the steps of forming an inner peripheral surface of an oil seal base body into an angled circumferential...
3794334 PISTON RING FACINGS  
This invention covers piston rings, including compression and oil control rings for internal combustion engine pistons, having a bearing face coated with a hard coating, particularly exhibiting...
3762010 PISTON RING AND MANUFACTURE THEREOF  
A piston ring with a highly wear-resistant sliding surface of tungsten-cobalt electrodeposit and a sliding ring of a sintered mixture of iron oxide and carbon powder.
3729790 A ONE-PIECE CHANNEL SHAPED PISTON RING  
A piston ring has an electrolytic Cr plating applied to the surface of the channel shaped steel article prior to slitting by the grinder to form a plurality of lateral slits.
3698054 METHOD OF MAKING OIL CONTROL PISTON RINGS  
A method of making oil control piston rings having inner diameter and outer diameter central channels with oil drainage slots spaced apart circumferentially communicating the channels, the outer...
3683477 METHOD OF PRODUCING ONE-PIECE CHANNEL SHAPED PISTON RING  
This disclosure provides a novel method of producing a channel shaped piston ring in that a plurality of relatively wide lateral slits are formed by punching together with the oil windows to save...
3671047 PISTON RING AND PROCESS OF MAKING THE SAME  
A cast iron piston ring is provided with a friction reducing packing of bonded iron oxide nd carbon powder in a groove of its outer circumferential face, and with a hard chromium electrodeposit on...
3435502 PISTON RING AND METHOD OF MANUFACTURE THEREOF  
3421198 METHOD OF MAKING WEAR RESISTANT PISTON RING  
3364547 Method of coating piston ring segments  
3337938 Method of making piston rings  
3208130 Method of producing piston packing  
3133341 Method of banding piston rings  
3053545 Piston rings and methods of manufacture  
2905512 Coated piston ring  
2846379 Plating equipment and method of plating piston rings  
2807511 Coated piston ring  
Matches 1 - 47 out of 47