摘要:
A connecting rod is a fracture split-type connecting rod made of an α+β type titanium alloy, including a rod main body and a big end provided at an end of the rod main body, the big end being fracture-split. The structure of the rod main body is an equiaxed α structure, and the structure of fractured surfaces of the big end is an acicular α structure.
摘要:
A lubrication system comprising a bore including an inlet for receiving lubrication, an outlet for distributing lubrication, and a inner passageway extending between the inlet and outlet is provided. The outlet may be provided with a wider opening than the passageway. The outlet may further include a groove having a radius of curvature, and defined by a pair of flat or curved sidewalls, and a pair of curved end walls each extending toward the inner passageway.
摘要:
Exemplary embodiments of the invention relate to a compressive rod assembly for applying force to a refractory vessel positioned within an outer metal casing. The assembly includes a rigid elongated rod having first and second opposed ends, a threaded bolt adjacent to the first opposed end of the elongated rod, and a compressive structure positioned operationally between the elongated rod and the bolt. Compressive force applied by the bolt to the elongated rod passes through the compressive structure which allows limited longitudinal movements of the elongated rod to be accommodated by the compressive structure without requiring corresponding longitudinal movements of the bolt. Exemplary embodiments also relate to rod structure forming a component of the assembly, and to a metal containment structure having a vessel supported and compressed by at least one such assembly.
摘要:
A human powered transmission for self propelled vehicles having oscillating power input levers displacing a pivoted power input member. The power input member pivotally journaled to a power output lever, the power output lever bearing on a fulcrum roller. The fulcrum rollers having a mechanism for adjusting the fulcrum roller along a predetermined length of the power output lever. Power output lever having a power output pivot, the power output pivot is connected to a flexible member for transferring tensile force to a unidirectional torque converter.
摘要:
An internal combustion engine may include a cylinder block defining a cylinder, and a crankshaft defining a crankpin, wherein the crankshaft is rotatably received by the cylinder block and rotates about a longitudinal axis. The internal combustion engine may further include a piston configured to reciprocate within the cylinder, and a connecting rod operably coupled to the piston and the crankpin. The connecting rod may include a first rod element having a first distal end and a first proximate end, wherein the first distal end is operably coupled to the piston. The connecting rod may further include a second rod element having a second distal end operably coupled to the first proximate end of the first rod element, and a second proximate end operably coupled to the crankpin, wherein the first rod element and the second rod element are pivotally coupled to one another.
摘要:
A variable displacement reciprocating pump with pumping rate that is adjustable from zero to maximum stroke while the pump is running. Stroke is varied by changing relative position of pairs of eccentric inner and outer cams that drive the pump's plungers. The pump's input drive shaft drives two gear trains: a first gear train that turns the inner cams and a second gear train that turns the outer cams. These cams normally revolve together with no relative motion occurring between them. A rotary actuator is positioned in the first gear train to rotate the inner cams relative to the outer cams and thereby changes the pump's stroke. A computerized system of sensors and control valves allows the pump to be automatically controlled or limited to any one or combination of desired output flow, pressure and horsepower.
摘要:
A connecting rod assembly includes a first end and a second end having bore extending therethrough and adapted to be aligned with a piston pin bore and receive a piston pin. The second end further includes a terminal end and has a reduced width configuration. The reduced width configuration is formed by machining a pair of channels that are formed on opposite sides of the second end between each channel and the terminal end. The bushing includes at least partially annular grooves disposed on the contact surface along at least a portion of opposed distal ends, where the grooves substantially eliminate the need for the small end to undergo a deburring process after the second end is machined to provide a reduced width configuration.
摘要:
A connecting rod made of a titanium alloy is a split-type connecting rod which includes a rod main body, and a big end located at an end of the rod main body, the big end being fracture-split into a rod portion which continues from the end of the rod main body and a cap portion which is coupled to the rod portion. The rod portion and the cap portion each have a fractured surface on which rugged features are present. A difference in height between a highest portion and a lowest portion on each fractured surface is about 230 μm or more.
摘要:
A polish rod apparatus connectable between a motion imparting mechanism of a pump jack and a string of sucker rods comprises a polish rod and a lift device. The polish rod has a center portion extending between its first end portion and second end portion. The center portion includes a thread structure extending along a portion of its length. The first end portion is connectable to the string of sucker rods. The lift device has an adjuster body including a central passage extending therethrough. The central passage of the adjuster body includes a thread structure matingly engagable with the thread structure of the polish rod such that rotation of the adjuster body relative to the polish rod causes axial movement of the adjuster body along a longitudinal axis of the polish rod thereby enabling vertical adjustment of the sucker rod assembly with respect to the motion imparting mechanism.
摘要:
A human powered transmission for self propelled vehicles having oscillating power input levers displacing a pivoted power input member. The power input member pivotally journaled to a power output lever, the power output lever bearing on a fulcrum roller. The fulcrum rollers having a mechanism for adjusting the fulcrum roller along a predetermined length of the power output lever. Power output lever having a power output pivot, the power output pivot is connected to a flexible member for transferring tensile force to a unidirectional torque converter.