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US20110023705 SCOTCH YOKE ENGINE OR PUMP  
A scotch yoke engine or pump with a female Vee land means (2a) extending parallel to the cylinder axis (1) of cylinder (11) and including two surfaces, the first planar surface extending parallel...
US20110286867 Mud Pump  
A mud pump is provided that includes a pump shaft having substantially circular eccentric lobes. Each lobe is rotatably mounted in a connecting rod that, in turn, moves a slide in a horizontal and...
US20080223031 Crosshead Arrangement  
A crosshead assembly in conjunction with a Stirling engine is disclosed. The assembly comprises a displacer piston (1), displacer rod (8), power piston (2), power piston crosshead assembly (2),...
US20140334947 FLUID PUMP SYSTEM  
A fluid pump system for a fluid delivery system is disclosed. The fluid pump system includes a drive cylinder and a drive piston slidably disposed in the drive cylinder. A drive rod including a...
US20070251379 Air Compression Apparatus and Method of Use  
An air compression apparatus has a frame, a tank, and a motor A drive mechanism is operably connected to the motor and at least one piston assembly is operably connected to the drive mechanism and...
US20130061745 REMOVABLE SHIM CLIP FOR ADJUSTABLE PISTON PUMP  
A pump assembly comprises a base, a cam, a cylinder, a piston, and a shim clip. The cam rotates about a rotational axis with respect to the base. The cylinder attaches to the base, and has an...
US20080247890 Recriprocating Compressor  
A highly reliable reciprocating compressor works efficiently with less energy, and produces smaller vibrations. This reciprocating compressor includes a crankshaft, a block, a piston, a connecting...
US20090272259 MOTION TRANSLATION MECHANISM  
This disclosure concerns machines that convert rotating motion to reciprocation, and vice-versa, and more particularly, but not exclusively, to reciprocating piston machines. Some embodiments...
US20110252960 MECHANICAL VENTILATOR  
A reciprocating device, comprising: a motor;at least one crank mechanism attached to the motor;at least one rod attached to the crank mechanism; andat least one sleeve surrounding at least a...
US20120017757 INERTIA FREE DRIVE FOR CRYOGENIC PISTON EXPANDER  
A cryogenic piston expander may reduce or eliminate the inertia of system, as compared to conventional cryogenic piston expanders that utilize a heavy flywheel. The cryogenic piston expander of...
US20140060319 ADJUSTABLE LINKAGE FOR VARIABLE DISPLACEMENT  
An apparatus comprising a crank-slider linkage and a rocker link. The crank-slider linkage has a crank coupled to the slider by a jointed connecting rod. The jointed connecting rod has a first...
US20110197848 PISTON MACHINE  
The invention relates to mechanical engineering, in particular to piston machines. The technical result of the invention consists in increasing the reliability and service life of the...
US20130061744 OFFSET CAM FOR PISTON PUMP  
A pump assembly comprises a cam and a piston. The cam rotates in a plane about an eccentric axis, and has a circumferential side wall. The piston engages the circumferential side wall of the cam,...
US20100180762 IMPROVED SCOTCH YOKE ENGINE OR PUMP  
An improved scotch yoke engine of pump including a piston joined to a yoke structure wherein the piston (1) is free to move along at least one axis defined by a flying cross (60) relative to the...
US20140116245 CRANK CIRCULAR SLIDING BLOCK MECHANISM AND RECIPROCATING MEMBER, CYLINDER BLOCK, INTERNAL COMBUSTION ENGINE, AND COMPRESSOR  
The invention provides a crank circular slider mechanism comprising multi-row reciprocating motion part and one-row reciprocating part: the multi-row reciprocating motion part has a guiding part...
US20120097025 DRIVE DEVICE FOR OSCILLATING POSITIVE-DISPLACEMENT MACHINES  
The present invention concerns a drive mechanism for oscillating positive-displacement machines such as for example diaphragm pumps comprising an eccentric shaft and a plurality m of piston rods,...
US20120124990 SUPPORT CYLINDER FOR A SELF-ENERGIZING HYDRAULIC BRAKE  
A pressure generating device generates a hydraulic pressure as a result of a tensile or compressive load. The device has connections, one of which can be rigidly connected to a frame by way of a...
US20090217891 RECIPROCATING PISTON MACHINE  
A two-stroke engine (1) including, an engine block (2) having a cylinder (3), a double-ended piston (4) received for reciprocation in the cylinder (3), the piston (4) comprising a body having...
US20120180652 Hybrid Type Air-Compressor Including Combination of Eccentric Shaft and Cross-Slider Mechanism  
Disclosed is a hybrid type air-compressor, which has a main body including a cylinder having upper and lower portions, a motor assembly including an eccentric shaft passing through a side surface...
US20120186567 Environmental friendly two stroke engine  
This is mainly an one cylinder environmental friendly two stroke engine with a lubrication and a gas control mechanism similar to a four stroke engine. An additional rotation inside of a cylinder...
US20100236401 METHOD OF CALIBRATING A CONNECTING ROD ARRANGEMENT AND CONNECTING ROD ARRANGEMENT  
The invention relates to a method of calibrating a connecting rod arrangement comprising a crankshaft eye and a connecting rod eye. In order to achieve the best possible parallelism between the...
US20110197754 CRANKSHAFT-LINK PISTON MACHINE  
The invention relates to mechanical engineering, in particular to piston machines and mechanisms for converting the movement of the pistons thereof into shaft rotation. The technical result of the...
US20090238702 FOOD STORAGE BAG VACUUM PUMP  
A vacuum pump comprises a casing having a bottom forming an aperture therein and a chamber slidably coupled within the casing. The chamber has a bottom forming an aperture therein. The vacuum pump...
US20140209052 PISTON ARRANGEMENT AND ENGINE  
A piston arrangement comprising a piston movable within a cylinder and having a stroke with a first end and a second end, wherein the piston is coupled to a crankshaft by a linkage mechanism...
US20120073538 Frictionless Rocking Joint  
Reciprocating motion can be converted to rotary motion through a crankshaft and a connecting rod. In a joint between a connecting rod and a piston, the connecting rod rocks with respect to the...
US20110289960 RECIPROCATING COMPRESSOR AND REFRIGERATING MACHINE HAVING THE SAME  
Disclosed are a reciprocating compressor and a refrigerating apparatus having the same, wherein a magnet bearing is inserted between facing surfaces between a cylinder block and a crank shaft and...
US20120312158 RING CAM AND FLUID-WORKING MACHINE INCLUDING RING CAM  
A ring cam for a fluid-working machine is formed from a plurality of segments. The segments comprise a leading cooperating formation which has a piston facing surface which forms part of the...
US20150075369 OIL-FREE AIR COMPRESSOR FOR RAIL VEHICLES WITH AIR VENTILATION  
An oil-free compressor for a rail vehicle includes a multi-piece compressor housing, a first piston cylinder supported in a first opening in the compressor housing, a second piston cylinder...
US20120210866 Reciprocating piston mechanism with extended piston offset  
The reciprocating piston mechanism with an extended piston offset is provided. The mechanism is of the type that contains at least one cylinder having a longitudinal axis, at least one piston that...
US20110296823 SYSTEMS AND METHODS FOR ENERGY STORAGE AND RECOVERY USING GAS EXPANSION AND COMPRESSION  
In various embodiments, energy-storage systems are based upon an open-air arrangement in which pressurized gas is expanded in small batches from a high pressure of, e.g., several hundred...
US20120247320 RECIPROCATING FLUID MACHINES  
A scotch yoke type fluid device in which the pistons are decoupled from each other is provided. Each piston of the device has its own pair of sliding surfaces and its own slider. The sliding...
US20140226127 Fluid Filled Lenses and Mechanisms of Inflation Thereof  
An actuator for a fluid-filled lens including a housing having a first and second end; a reservoir disposed within the housing is disclosed. In an embodiment, the actuator further includes a...
US20060180018 RECIPROCATING COMPRESSOR FRAME  
A reciprocating compressor barrel frame comprising a continuous curved wall having an inner surface and an outer surface. A housing is formed by the inner surface of the curved wall. A pair cross...
US20150219374 Reciprocating Refrigeration Compressor Wrist Pin Retention  
A compressor (20) has a case (22) and a crankshaft (38). The case has a number of cylinders (30 32). For each of the cylinders, the compressor includes a piston (34) mounted for reciprocal...
US20100243174 Actuator unit comprising force amplification  
The actuator unit includes a hollow body defining a sliding chamber within; a piston mounted sliding inside said sliding chamber such to provide an actuation force and operated by a fluid fed from...
US20100038381 Cartridge  
The invention pertains to a cartridge (1) with at least one chamber (6a, 6b) for accommodating a substance that respectively features a dispensing opening (11a, 11b) and another opening that is...
US20130340608 JOINT MECHANISM  
In the joint mechanism, when connecting a plunger to a piston, after engaging members of a plunger-side engaging region in a retracted state pass through a first engaging wall region of a...
US20140000450 Gas Spring  
The invention consists of a gas spring which can absorb movements perpendicular to its operating axis. To do that, it has a hollow cylindrical body (1) with an open end, a piston rod (2) located...
US20130333552 DEVICE FOR RECEIVING AND DISPENSING HYDRAULIC FLUID, IN PARTICULAR FOR A HYBRID OR ELECTRIC VEHICLE, AND BRAKING SYSTEM FOR A HYBRID OR ELECTRIC VEHICLE  
A device is described for receiving and dispensing hydraulic fluid, in particular for a hybrid or electric vehicle, having a cylinder, a piston, which is movable in the cylinder for receiving and...
US20130333553 3-STROKE/6-STROKE ROCKET JET ENGINE  
The present invention has an object to provide an engine and a pump useful in three-stroke/six-stroke rocket/jet engine pump and the like in each of a speed volume type and an isokinetic circular...
US20130047838 FLUID ACTUATOR  
A fluid is supplied and discharged to and from a cylinder. A body portion is fixed to a fixed-side structure, and the cylinder is provided integrally with the body portion. A piston defines a...
US20100150758 AIR PUMP  
An air pump comprises a cylinder, a piston, a piston rod, and four substantially rigid members. The piston is reciprocably movable within the cylinder and is secured to the piston rod. The first...
US20120042774 DISPLACEMENT ASSEMBLY FOR A FLUID DEVICE  
A displacement assembly includes a rotor and a plurality of reciprocating members in engagement with the rotor. The displacement assembly further includes a ring assembly. The ring assembly...
US20130228068 HIGH PRESSURE DEVICE FOR FLUID MEDIA  
Cylinder unit of a high pressure pump for a fluid. Cylinder unit includes a cylinder formed by at least two concentric tubular components coupled by a shrink connection. A flange part with sealing...
US20100140038 Piston apparatus of automatic transmission  
In an embodiment of the present invention, a piston apparatus of an automatic transmission includes a piston member capable of moving in the axial direction of the rotation shaft, and a hydraulic...
US20170122301 CONNECTING ROD WITH MODIFIED END  
A connecting rod (24) has a modified end adapted to ensure that a lubricant film of sufficient thickness exists in an end bearing thereof when the connecting rod is placed in both tension and...
US20170067546 Power Delivery Devices for Reciprocating Engines and Related Systems and Methods  
In some aspects, reciprocating engines can include a drive mechanism for generating a rotational motion output from reciprocating piston assembly, where the drive mechanism includes an axially...
US20170058888 ACCESS PUMP CASING  
A new pump design is described. The pump features a casing with a continuous enclosure extending from a power end of the casing to a fluid end of the casing for housing the reciprocating assembly...
US20170051766 CYLINDER  
A cylinder is provided in which the length of a fluid supply pipe is reduced and the cylinder is installed in a fixed manner. The cylinder includes a main body that has an internal space and an...
US20160369792 CONNECTING ROD AND CROSSHEAD ASSEMBLY FOR ENHANCING THE PERFORMANCE OF A RECIPROCATING PUMP  
A method and apparatus for a reciprocating pump assembly, including a crosshead and a connecting rod. The crosshead includes a main body having a cylindrical bore formed therethrough and defining...

Matches 1 - 50 out of 54 1 2 >