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| Number | Title | Issue Date |
| 8186263 | Liner retention system Apparatus and method for securing a cylinder liner to a pumping module. A first part of an assembly housing pistons is fastened to a pumping module and a second part of the assembly is brought against the first so that the pistons act on tensioning plates which each... | 05/29/2012 |
| 7984671 | Self-tightening cover for pump A self-tightening retaining system for securing a closure in position closing an access port of a pump housing. The system includes a retaining cover for obstructing removal of the closure from a bore of the access port. The cover has external threads interengageabl... | 07/26/2011 |
| 7975601 | Engine cylinder liner An engine cylinder liner is provided. The engine cylinder liner includes a first liner end, a second liner end, and an inner surface extending between the first liner end and the second liner end. The engine cylinder liner also includes a first outer surface between... | 07/12/2011 |
| 7958814 | Power assembly for internal combustion engine with welded-in piston scraper A power assembly for an internal combustion engine includes a piston housed within a cylinder, with the cylinder having a welded cylinder head, with the cylinder also including a one-piece piston scraper which is welded to the cylinder head, as well as to the cylind... | 06/14/2011 |
| 7938057 | Piston pump with reduced clearance volume The invention relates to a piston pump which is used to guide a fluid and which comprises a cylinder, a piston which is displacably arranged in the cylinder, a return element for the piston and a drive in order to displace the piston in the cylinder. The cylinder co... | 05/10/2011 |
| 7748310 | Liner retention system Apparatus and method for securing a cylinder liner to a pumping module. A first part of an assembly housing pistons is fastened to a pumping module and a second part of the assembly is brought against the first so that the pistons act on tensioning plates which each... | 07/06/2010 |
| 7726232 | Diaphragm pump liner for critical process applications One embodiment of the invention relates to a liner for a first pump housing in a fluid pump assembly. The fluid pump assembly includes a first pump housing, a second pump housing and a flexible diaphragm disposed between the first and second pump housings. The first... | 06/01/2010 |
| 7523694 | Cylinder liner preload system Apparatus and method for applying radial compressive stress pre-loading to a cylinder liner. A cylinder housing is attached to a pump, and a cylinder liner is disposed within the cylinder housing. A fluid inlet in fluid communication with the annular space between t... | 04/28/2009 |
| 7506574 | Self-tightening cover for pump A self-tightening retaining system for securing a closure in position closing an access port of a pump housing. The system includes a retaining cover for obstructing removal of the closure from a bore of the access port. The cover has external threads interengageabl... | 03/24/2009 |
| 7469626 | Split ceramic bore liner, rotor body having a split ceramic bore liner and method of lining a rotor bore with a split ceramic bore liner A rotor body (22) having a plurality of cylindrical bores (24) each adapted to receive a piston (30) for reciprocating movement therein, each of the bores (30) being lined with a ceramic liner (42) having a first split (44),... | 12/30/2008 |
| 7415920 | Radial piston pump A radial piston pump for generation of high fuel pressures in fuel injection systems comprises a pump housing, a pump shaft and at least one cylinder insert, arranged radially to the pump shaft. A cylinder chamber is located within the cylinder insert in which a pis... | 08/26/2008 |
| 7383805 | Cylinder liner for insert casting and method for manufacturing thereof A cylinder liner for insert casting and a method for manufacturing the cylinder liner are provided. The cylinder liner and the method are applied to cylinder blocks and improve the adherence and the bonding strength with a cylinder block material in a favorable mann... | 06/10/2008 |
| 7367789 | Device for maintaining a static seal of a high pressure pump A pressure enclosure includes a first component having an opening, a second component coupled to the first component in a position over the opening, a third component positioned between the first and second components and covering the opening, and a load chamber def... | 05/06/2008 |
| 7363851 | Spacers for use with actuator casings Spacers for use with actuator casings are disclosed. An example spacer includes a ring-shaped member defining a central opening and configured to form a part of an actuator casing and to space first and second actuator casing portions a predetermined distance when t... | 04/29/2008 |
| 7287967 | High-pressure pump having small initial axial force of a clamping bolt A high pressure pump for preventing distortion of a sealing surface or a cylinder form. The high pressure pump has an intermediate member including a cylinder body having a pressurizing chamber communicated with a cylinder accommodating a plunger. Fluid in the press... | 10/30/2007 |
| 7287460 | Hydraulic retention system for reciprocating pump cylinder liner Methods and apparatus for securing a cylinder liner to a pump module. A tension body is disposed about the cylinder liner and attached to the pump module. A locking body engages the cylinder liner and is threaded to the tension body. A hydraulic load cell is removab... | 10/30/2007 |
| 7287376 | Hydraulic cylinder, in particular slave cylinder for a hydraulic clutch actuation system for motor vehicles A hydraulic cylinder comprises a piston assembly with a piston and a piston rod, a cylinder housing with a housing bottom, a pressure chamber in the cylinder housing delimited by the piston and housing bottom, a spring element which prestresses the piston assembly a... | 10/30/2007 |
| 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 |
| 7264451 | Frame of reciprocating compressor A frame of a reciprocating compressor includes a main frame having a cylindrical insertion hole to receive a cylinder of a compression unit along a center axis thereof and a flange that supports an outer stator of a reciprocating motor at the outer circumference of ... | 09/04/2007 |
| 7249938 | Linear compressor Disclosed herein is a linear compressor. In the present invention, the configuration that a sealing protrusion is protruded in a sealing part of a cylinder toward an exhale cover leads line contact with the exhale cover and the sealing protrusion of the sealing part... | 07/31/2007 |
| 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 |
| 7234388 | Liner retention system A liner retention system for a reciprocating pump having a piston and a piston rod operating in a cavity of a frame. The system includes a cylindrical liner for the piston and piston rod, the liner having a radially extending external shoulder. A liner clamp plate h... | 06/26/2007 |
| 7219595 | Master cylinder housing A master cylinder housing including an outer shell having an open end and a closed end, a polymeric inner lining received within the outer shell, and a mounting flange extending from the open end of the outer shell. ... | 05/22/2007 |
| 7220109 | Pump cylinder seal A compact opposed piston pump minimizes axial spacing between its pistons on the drive shaft and thereby reduces the shaking couple and noise from reciprocation. Each piston has its own eccentric element press-fit into the connecting rods so as not to occupy space b... | 05/22/2007 |
| 7207260 | Reciprocating hydraulic machine, especially a motor, and dosing apparatus comprising such a motor A hydraulic motor comprises a body and a piston able to slide in a reciprocating movement in a cylindrical housing of the body. A chamber (C1, C2) is formed on each side of the piston and hydraulic switching means are provided for feeding and evacuatin... | 04/24/2007 |
| 7182016 | High pressure fluid cylinder system A high pressure fluid jetting system generally includes a fluid cylinder pump, a drive assembly, a pressurized liquid supply and an applicator gun. The drive assembly includes a diesel or electric powered motor which drives a rotatable drive shaft. The drive shaft d... | 02/27/2007 |
| 7172011 | Method for the production of a lost-foam casting model for a light metal cylinder liner A light metal cylinder liner with a surface which facilitates the connection with the surrounding cast material may be produced. The cylinder liner is produced by a lost-foam method with a form for production of the cast foam model having a structured surface with h... | 02/06/2007 |
| 7100264 | Method of installing double flanged bushings A bushing (52) has two bushing parts (52, 58), each of which includes a tubular section (54, 60) and a radial flange section (56, 62) Tubular section (54) is inserted into an opening (38) in a work member (40), from o... | 09/05/2006 |
| 7051639 | Mounting apparatus and method for cylinder position sensor A method and apparatus for detecting the position of a rod member of a cylinder assembly are provided. The cylinder assembly may have a cylinder body with a cylinder chamber therein, a gland member disposed within the cylinder chamber, and a rod member movably arran... | 05/30/2006 |
| 7013640 | Stirling engine assembly A seal between the head of a Stirling engine (1) and surrounding burner assembly (2). The seal comprises an annular trough (11) attached to one component and filled with a viscous liquid (14), and an annular blade attached to the other co... | 03/21/2006 |
| 7000584 | Thermally insulated cylinder liner An engine is provided with a plurality of cylinders and cylinder liners that are shaped to define a plurality of spaces between the liners and the engine block. These spaces provided an insulative barrier that at least partially restricts the flow of heat from the l... | 02/21/2006 |
| 6976466 | Cylinder block and crankcase for a liquid-cooled internal-combustion engine A cylinder block and crankcase for a liquid-cooled internal-combustion engine is to be constructed by composite casting, a magnesium case being cast around an aluminum power unit block. The cylinder block and crankcase is conceived such that the aluminum power unit ... | 12/20/2005 |
| 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 |
| 6921254 | Pump A pump includes a cylinder, a piston, a connecting rod, a plug, a nozzle and a fastener. The cylinder includes a first open end and a second open end. The piston is movable in the cylinder. The connecting rod includes a first end connected with the piston in the cyl... | 07/26/2005 |
| 6901960 | Double diaphragm pump including spool valve air motor A double diaphragm pump including a pump housing, first and second pump diaphragms, an inlet manifold, an outlet manifold, and an air motor. The air motor includes a spool valve having a valve housing, an insert surrounded by the valve housing, and a spool. The valv... | 06/07/2005 |
| 6874995 | Compressors having cylinder liners extending beyond the cylinder bores A swash type compressor includes sleeves which are fixedly fitted in cylinder bores. The lengths of the sleeves in an axial direction are greater than the lengths of the cylinder bores in the axial direction. A sleeve end of each of the sleeves is flush with an end ... | 04/05/2005 |
| 6840154 | Working cylinder A drive cylinder comprising a cylinder barrel (3) extending between two cylinder heads (2a and 2b) and a plurality of ties (13) distributed about the outer periphery of the cylinder barrel (3) and bracing the cylinder... | 01/11/2005 |
| 6732632 | Lost mould for producing a cylindrical bushing sleeve A cylindrical bushing sleeve or another cast part, in particular a ring carrier for pistons, has a rough surface so that the surrounding cast material can cling to the cast part as required. The rough surface is created by producing the cast part with the aid of a l... | 05/11/2004 |
| 6672199 | Cylinder block of an axial piston compressor with elongated cylinder face Cylinder block (32) of an axial piston compressor (20), in particular for use in a vehicle air conditioner with CO2 as coolant, which comprises at least one, in particular several cylinder bores distributed about a periphery, each of which defi... | 01/06/2004 |
| 6668702 | Method an apparatus for producing high pressure compressor cylinder liners A cylinder liner system comprising a cylinder liner having an elongated tube, an inside surface, an outside surface, and a notch on a top side; a block having a bore for concentrically accepting the cylinder liner and a locking pin that engages the cylind... | 12/30/2003 |
