摘要:
A method of making a lead alloy grid for use in a plate for a lead acid battery that enables thin battery plates with a high surface area. The method of the present invention includes forming the lead alloy, such as by direct casting, to a very small thickness, then work hardening the cast strip to create a grid by forming indentations and protrusions in the thinly cast alloy strip, which in addition to strengthening the strip, provides a desirable surface topography for paste adhesion and interface characteristics. The work hardening, for example embossing, may further include splitting the strip at a high point of the protrusions and indentations to create perforated protrusions and indentations. The grid may then be used to make a plate by pasting an active mass onto the grid, steaming the pasted grid, and curing the pasted grid to provide a plate having a thickness of about 0.05 inch or less. There is further provided a lead alloy grid for use in a plate of a lead acid battery, the grid comprising a cast lead-tin-calcium alloy having spaced protrusions and indentations on each opposing surface of the grid. The protrusions and indentations may further include a perforation. The grid has a higher surface area than punched or expanded grids, thereby providing a lower resistance and better adherence at the paste/grid interface.
摘要:
A method for producing thin film deposits of binary shape-memory alloys using an ion sputtering deposition process comprising using a hot pressed metal powder composition target.
摘要:
The invention includes a spark plug for a combustion engine including a center electrode having a tapered portion with a plurality of ridges formed thereon. The spark plug may also include a tapered, ground electrode positioned over the center of the center electrode. The tapered center and ground electrodes allow for flames to propagate freely from the spark gap into the combustion chamber and to ignite an air-fuel mixture in the chamber leading to smooth idle and faster starts.
摘要:
An ion sensor glow plug assembly includes a shell for attachment to a cylinder head of a compression ignition engine and having a passageway extending axially therethrough. The ion sensor glow plug assembly also includes an insulator disposed at least partially in the passageway of the shell and having an aperture extending axially therethrough. The ion sensor glow plug assembly includes a glow bulb made of an insulative material and including a heating element disposed therein. The glow bulb extends through the aperture and into the passageway of the shell and is operatively connected to a source of power to create a heating circuit. The ion sensor glow plug assembly further includes a conductive material extending axially along the glow bulb and operatively connected to a source of power to create an ion sensing circuit.
摘要:
A glow sensor provides functions of both a diesel engine glow plug for aiding fuel ignition during starting and low temperature operation and an ion sensor for sensing engine combustion initiation and characteristics. Compact glow sensor components may be assembled directly in combination with an engine combustion chamber defining component, such as a cylinder head, to provide a combination in which separate housings or shells for the glow sensors are not needed. Thus, the glow sensor elements and insulation may be made larger to provide greater electrical resistance in the ion sensor electrical circuit and enhance the operation of the ion sensor function. Various forms of glow sensors may optionally be used in such a combination including, for example, metal sheath type glow sensors with either isolated or non-isolated coils and ceramic rod or flat plate type glow sensors. Exemplary embodiments of glow sensor components mounted in a cylinder head are disclosed.