Class / Patent application number | Description | Number of patent applications / Date published |
092187000 | With separable means for pivotally mounting connecting rod to piston | 21 |
20080245230 | PISTON ASSEMBLY AND WRIST PIN THEREFOR PROVIDING A METHOD OF CONTROLLING ROTATION OF THE WRIST PIN WITHIN CORRESPONDING PISTON PIN BORES AND CONNECTING ROD WRIST PIN BORE - A piston assembly and wrist pin therefor provide a method for controlling rotation of the wrist pin with respective piston pin bores and connecting rod small end wrist pin bore. The wrist pin has a cylindrical body with opposite end portions spaced axially from one another by a central portion and a through bore of varying internal diameter. The through bore has first diameter and second diameters, wherein the first diameter is less than the second diameter. The first diameter is defined in one of the central portion or the opposite end portions, while the second diameter is defined in the other of the central portion or the opposite end portions. The first diameter transitions to the second diameter generally between the small end of the connecting rod and the pin bores of the piston. | 10-09-2008 |
20080307957 | Piston-Pin Bore Dimensions for a Piston of an Internal Combustion Engine - A coating for a tribologically heavily loaded component, wherein the coating is in the form of a ceramic coating made of an organic-inorganic prepolymer which is pyrolyzed after being applied to the component. | 12-18-2008 |
20090038471 | Rotary clamp cylinder - According to a rotary clamp cylinder of this invention, in a rod cover | 02-12-2009 |
20090084260 | PINLESS PISTON AND CONNECTING ROD ASSEMBLY - A piston extends along a central axis with an upper crown and a boss depending from the crown. The boss has opposite sides extending along opposite sides of the central axis to a free end and an annular pocket extending laterally into at least one of the sides. The boss further includes an opening extending through the free end into the pocket. The opening has a width extending from the side in which the pocket extends toward the other side of the boss. An assembly including the piston further includes a connecting rod terminating at a small end configured for receipt in the pocket with a shank extending from the small end. The small end can be provided with an external bearing material on a convex outer surface, and the small end is unobstructed from lateral movement along the opening over a full stroke of the piston. | 04-02-2009 |
20090114087 | PIN BOSSES OF A PISTON FOR AN INTERNAL COMBUSTION ENGINE - Pin bosses ( | 05-07-2009 |
20100154628 | PISTON PIN DEVICE AND METHOD OF MAKING THE SAME - A piston pin includes a cylindrical sleeve and an insert, the insert material having a lower volume weight than that of a material of the sleeve. For instance, the insert can be made of an aluminium alloy, of titanium, of a TiAl alloy or of a composite material. The insert has a length approximately equal to, or less than, that of the sleeve and is firmly secured to the latter by force- or interference-fitting. | 06-24-2010 |
20100258003 | RECIPROCATING PISTON ENGINE - The invention relates to a reciprocating piston engine, particularly a coolant compressor for motor vehicles, comprising at least one piston movably supported in a cylinder, and comprising a pivot element ( | 10-14-2010 |
20100275774 | BIAXIAL ALIGNMENT ASSEMBLY FOR FORCE DELIVERY DEVICE - A method and apparatus for accommodating mis-alignment of a piston rod in a reciprocating force delivery device is provided. A piston rod is coupled to a piston by a pivot bearing disposed around the piston rod inside the piston. The pivot bearing contacts an internal surface of the piston and provides a biaxial pivot point, which may also be triaxial, for the piston rod inside the piston. The pivot point is located near the centroid of the piston, enabling forces not aligned with the axis of the piston to be decoupled into axial and transverse components. The force decoupling avoids rotational moment on the piston, minimizing the possibility of metal-to-metal contact between components of the piston and the cylinder liner. | 11-04-2010 |
20110296983 | PISTON PUMP DEVICE - A piston pump device has a support unit, a pump cylinder, and a pump piston arranged in the pump cylinder. The pump cylinder has a longitudinal center axis, and a cylinder bottom arranged perpendicular to the longitudinal center axis. The pump piston is movable relative to the cylinder bottom, and the pump cylinder is secured on the support unit by a securing unit. The securing unit has a leaf spring, which permits a pivoting movement of the longitudinal center axis of the pump cylinder relative to the support unit. The piston pump device is wear-resistant and runs quietly. When used as a suction pump, the piston pump device additionally permits a controllable air flow until the pump comes to a stop. | 12-08-2011 |
20120186444 | WRIST PIN AND METHOD OF REDUCING WEAR BETWEEN MEMBERS THEREOF, CONNECTING ROD, PISTON AND METHODS OF CONSTRUCTING SAME - A wrist pin and method of reducing wear between members thereof, a piston, a connecting rod, and methods of construction thereof are provided. The wrist pin has a first portion extending between opposite ends configured for receipt in piston pin bores and a second portion extending between opposite ends configured for receipt in the pin bores. The second portion is configured for relative movement with the first portion. The piston includes a piston body having axially aligned pin bores, wherein at least one of the pin bores has a feature to prevent relative rotation of a wrist pin member. The connecting rod includes a connecting rod body having small end bore. The small end bore has a contour to allow relative rotation of a first wrist pin member therein and a feature to prevent relative rotation of a second wrist pin member therein. | 07-26-2012 |
20130174728 | PISTON PIN FOR HEAT DISSIPATION - A piston assembly including a piston body pivotally connected to a connecting rod by a wrist pin. The wrist pin includes a sealed cavity therein partially filled with a heat transfer medium. The heat transfer medium may be composed of a fusible alloy. The sealed cavity may be comprised of discrete compartments. The wrist pin may be integrated with the connecting rod and share a conjoined sealed cavity therewith so that heat transfer medium can draw heat effectively away from the piston body. | 07-11-2013 |
20130220115 | Piston Assembly Including A Polymer Coating With Hard Particles Applied to Sliding Surfaces - A piston assembly comprises a piston body, a connecting rod, and a wrist pin. The piston body includes a pair of first cross bores presenting a piston sliding surface. The connecting rod includes a second cross bore presenting a rod sliding surface which is axially aligned with the first cross bores of the piston body. A wrist pin is disposed in the aligned cross bores and couples the piston body to the connecting rod. The wrist pin also presents a pin sliding surface facing the rod sliding surface and the piston sliding surfaces. A coating is applied to at least one of the sliding surfaces, such as by dipping, brushing, atomizing, spraying, printing, or screen printing. The coating includes a polymer matrix, such as polyamide imide (PAI), and hard particles, such as Fe | 08-29-2013 |
20130276626 | HYBRID PIN FOR CONNECTING A PISTON FOR AN INTERNAL COMBUSTION ENGINE TO A PISTON ROD, AND PRESSING DEVICE FOR PRODUCING THE HYBRID PIN - The invention relates to a hybrid pin ( | 10-24-2013 |
20140000452 | PISTON FOR A RECIPROCATING HERMETIC COMPRESSOR | 01-02-2014 |
20140013939 | WRIST PIN AND METHOD OF REDUCING WEAR BETWEEN MEMBERS THEREOF, CONNECTING ROD, PISTON AND METHODS OF CONTRUCTING SAME - A wrist pin and method of reducing wear between members thereof, a piston, a connecting rod, and methods of construction thereof are provided. The wrist pin has a first portion extending between opposite ends configured for receipt in piston pin bores and a second portion extending between opposite ends configured for receipt in the pin bores. The second portion is configured for relative movement with the first portion. The piston includes a piston body having axially aligned pin bores, wherein at least one of the pin bores has a feature to prevent relative rotation of a wrist pin member. The connecting rod includes a connecting rod body having small end bore. The small end bore has a contour to allow relative rotation of a first wrist pin member therein and a feature to prevent relative rotation of a second wrist pin member therein. | 01-16-2014 |
20140202328 | Piston With Improved Side Loading Resistance - A piston system including a body defining a bore and a piston positioned inside the bore and mounted for reciprocation therein. The piston includes a crown and a skirt extending generally away from the crown, the skirt including a pair of opposed panel portions. The piston further includes a transition portion configured to first engage the body during reciprocation of the piston in the bore. The piston is configured such that additional movement of the piston in the bore after the first engagement causes additional contact between the piston and the body, the additional contact increasing or moving in a circumferential direction about the piston. The piston is configured such that maximum side loading forces from the body to the piston are applied to the piston at one of the panel portions. | 07-24-2014 |
20150075370 | PISTON PUSH ROD ASSEMBLY, MASTER CYLINDER, AND MANUFACTURING METHOD FOR PISTON PUSH ROD ASSEMBLY - Provided is a piston push rod assembly which can prevent discomfort from being imparted during the operation of a brake pedal by a driver. A piston push rod assembly, wherein: a second piston is provided with a piston slide section which is housed in a cylinder and which slides relative to the cylinder, and a connection tube section which is connected to a push rod; the piston slide section is covered by metal plating; the connection tube section has a non-plated section; and the second piston and the push rod are connected by the caulking of the connection tube section when the push rod has been inserted inside the connection tube section. | 03-19-2015 |
20150114218 | PISTON WITH ACTIVE STRUCTURE - The present invention relates to a piston and a piston-connecting rod assembly for internal combustion engines or compressors, featuring a pinless connecting rod assembly having a joint claw, whereas the joint claw is formed to partly encompass an upper joining end of a connecting rod, whereas the joint claw is formed as a part of an inner section of the piston, and whereas the inner section is radially encircled by a cylindrical piston skirt. According to the invention at least one bar element is arranged extending between the inner section and the piston skirt, whereas the bar element divides a first open section from at least one second open section being arranged between the inner section and the piston skirt. | 04-30-2015 |
20150122119 | DISPOSABLE PUMPING SYSTEM AND COUPLER - A coupling system for receiving a push rod includes a housing defining an internal channel having a sloped wall, and a piston received within the internal channel. The piston includes at least one flexible member arranged within the channel to be acted upon by the sloped wall to engage the push rod. The only external force required to couple the push rod is an axial force on the piston in a direction. The only external force required to de-couple the push rod is an axial force on the piston in an opposite direction. | 05-07-2015 |
20150135945 | BRAKE BOOSTER INPUT ROD - An embodiment discloses a brake booster input rod, including: a front end portion to which an input piston of a brake booster is connected; a rear end portion to which a yoke connected with to a brake pedal is attached; and an annular boot installing groove to be engaged with, when a boot covers a front portion of the input rod, a rear end bead portion of the boot with a fastening margin. Through rolling, two annular groove portions and an annular ridge portion are formed to each have a triangular section. The ridge portion functions as a rear side wall of the boot installing groove. | 05-21-2015 |
20160169151 | PISTON FOR INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREOF | 06-16-2016 |