Patent application number | Description | Published |
20100038458 | Fuel injector having an energy attenuator sub-assembly for the valve seat - A fuel injector for dispensing gaseous fuel into an internal combustion engine, including a valve body having an axial bore; a valve seat sub-assembly slidably disposed in the axial bore; a valve needle sub-assembly disposed within the axial bore and selectively matable with the valve seat sub-assembly; an electrical actuator connected to the valve needle sub-assembly for moving the valve needle sub-assembly in alternating axial directions to cause the valve needle to make intermittent contact with and separate from the valve seat sub-assembly to control flow of fuel from the outlet end; and an energy attenuator sub-assembly having a polymeric resilient layer fixedly disposed in the axial bore and in contact with the valve seat sub-assembly to bias the valve seat sub-assembly against the valve needle sub-assembly to dampen closing impact of the valve needle sub-assembly against the valve seat sub-assembly. | 02-18-2010 |
20100044471 | Fuel injector with energy adsorbing pole - A solenoid operated gaseous fuel injector includes a pole positioned axially movable within a fuel tube, a retaining ring axially retaining a first end of the pole, a spring element positioned in contact with a second end of said pole, and an armature transmitting a force onto said pole at impact. The gaseous fuel injector operates to effectively attenuate and dissipate armature impact force onto the pole. Accordingly, impact energy attenuation is attained while cold temperature stiction of the moving parts is avoided. | 02-25-2010 |
20100258657 | Fuel injector having a disk valve with a floating, compliant injector seat - An improved disk-valve fuel injector comprising a self-centering, floating valve seat insert disposed in a valve body. The valve seat insert includes a circular first valve seat and the body includes a circular second valve seat concentric with the first valve seat. A spring urges the valve insert into compliance with a disk-shaped valve head. The valve insert is able to adjust position in all three dimensions, allowing the disk head to mate precisely with both seats, thereby minimizing leakage when the valve is closed, improving metering precision, and extending the working lifetime of the valve head and valve seats. | 10-14-2010 |
Patent application number | Description | Published |
20140251570 | CENTRIFUGAL CASTING APPARATUS AND METHOD - A centrifugal casting apparatus includes a rotatable assembly to rotate about a rotation axis. The rotatable assembly includes a sprue chamber positioned about the rotation axis and is shaped to receive a supply of molten material. A first gate and a second gate are positioned to receive molten material from the sprue chamber in a general direction of centrifugal force. A first cavity and a second cavity are stacked and are respectively positioned to receive molten material from the first gate and the second gate in the general direction of centrifugal force. | 09-11-2014 |
20150352633 | ENHANCED TECHNIQUES FOR CENTRIFUGAL CASTING OF MOLTEN MATERIALS - Various enhanced features are provided for centrifugal casting apparatuses, rotatable assemblies, and molds for casting products from molten material. These enhanced features include, among others, tapered gate portions positioned adjacent to the cavities of a mold, extended and shared gating systems, and detachable mold structures for modifying the thermodynamic characteristics and behavior of molds during casting operations. | 12-10-2015 |
20160059303 | CENTRIFUGAL CASTING METHOD - A centrifugal casting method for producing a casting of a metallic material comprises positioning a rotatable assembly comprising a plurality of gates and a plurality of cavities positioned about a sprue chamber. The plurality of gates and the plurality of cavities are positioned to receive molten metallic material from the sprue chamber in a general direction of centrifugal force. Each of the plurality of gates is coupled to one of the plurality of cavities, and at least two of the plurality of cavities are stacked. The method further comprises rotating the rotatable assembly. The method further comprises delivering a supply of molten metallic material to the sprue chamber. | 03-03-2016 |