摘要:
A spark ignition device and method of construction is provided. The device includes a ceramic insulator and a metal shell surrounding at least a portion of the ceramic insulator. The metal shell extends along a central axis between an upper terminal end and a lower fastening end. The fastening end has a pair of projections diametrically opposite one another extending axially to free ends. A center electrode assembly is received at least in part in the ceramic insulator. In addition, the device includes an elongate ground electrode having opposite sides extending along a length of the ground electrode between opposite ends. The ground electrode has opposite faces with a sparking surface attached to one of the faces, wherein the face with the sparking surface attached thereto is sunk axially into the free ends of the projections with at least a portion of the opposite sides being surrounded by the projections.
摘要:
A spark plug assembly (10) for engine applications where the combustion chamber is difficult to access when servicing or replacing a spark plug. The spark plug assembly (10) includes a fairly traditional spark plug component (28) to which an elongated tubular conduit (12) is attached, such as by welding, to a portion of the metallic shell (32). The conduit (12) contains an upper ceramic insulator (52) adjacent its top end (14) disposed in end-to-end abutting contact with an outer elastomeric insulator (58). The ceramic insulator of the spark plug component (28), herein referred to as a lower ceramic insulator (30), is surrounded by the outer elastomeric insulator (58) and held securely within the conduit (12) thereby. An inner elastomeric insulator (62) is disposed in a continuous passageway formed between aligned central bores formed in the respective upper ceramic (52) and outer elastomeric (58) insulators. The inner elastomeric insulator (62) supports and further electrically isolates an elongated electrically conductive center electrode extension (48) that is in direct electrical conductivity with the center electrode (44) of the spark plug component (28). An ignition lead wire makes electrical contact with the center electrode extension (48) and thereby delivers electrical energy at timed intervals to the spark gap.
摘要:
A spark ignition device and method of construction is provided. The device includes a ceramic insulator and a metal shell surrounding at least a portion of the ceramic insulator. The metal shell extends along a central axis between an upper terminal end and a lower fastening end. The fastening end has a pair of projections diametrically opposite one another extending axially to free ends. A center electrode assembly is received at least in part in the ceramic insulator. In addition, the device includes an elongate ground electrode having opposite sides extending along a length of the ground electrode between opposite ends. The ground electrode has opposite faces with a sparking surface attached to one of the faces, wherein the face with the sparking surface attached thereto is sunk axially into the free ends of the projections with at least a portion of the opposite sides being surrounded by the projections.
摘要:
A data storage cartridge is positioned in a disk drive. The cartridge is positioned in the X and Y dimensions by contact between an alignment opening in the cartridge and an XY alignment pin in the disk drive and in the theta (rotational) dimension by contact between an edge of the cartridge and a theta datum in the disk drive. The cartridge is positioned in the Z dimension by contact between the cartridge and at least three Z datums.
摘要:
A head loading mechanism for a disk drive. When power to the disk drive is disconnected, an actuating spring is released. Movement of the spring causes a plunger to contact a bracket on the actuator arm, moving the actuator arm over a parking zone. Further movement of the spring causes blades to lift read/write heads mounted on the actuator arm away from disk surfaces. When power is restored, a motor compresses the spring and returns the plunger and the blades to their original positions.
摘要:
A cartridge has a flexible pad which is disposed between a Bernoulli plate and a record disk when the cartridge is inserted into the disk drive. The flexible pad prevents ringing as the record disk is rotated against the Bernoulli plate. The cartridge has a slider which is opened when the cartridge is inserted into the drive to expose the record disk for rotation. This slider has a locking mechanism which can be opened only when the cartridge is properly inserted into the drive.
摘要:
A method of compacting material such as but not limited to cathode material for electrochemical cells. A mixture is inserted into a die cavity and the mixture is compacted into a disk shape by the action of a first plunger pressing down on the material and a second plunger pressing upwardly on the material. Flashing of material during ejection of the disk from the die is prevented by fitting a polymeric sleeve around the outer surface of the first plunger. The sleeve flexes to bulge outwardly and does not enter the die cavity during compaction of material and returns to its original position during ejection of the compacted disk from the die. Contact between the disk and sleeve prevents flashing during ejection. Alternatively, a polymeric seal ring is placed around the outer surface of the first plunger. The disk presses against the seal ring preventing flashing of material during ejection.
摘要:
A method of compacting material such as but not limited to cathode material for electrochemical cells. A mixture is inserted into a die cavity and the mixture is compacted into a disk shape by the action of a first plunger pressing down on the material and a second plunger pressing upwardly on the material. Flashing of material during ejection of the disk from the die is prevented by fitting a polymeric sleeve around the outer surface of the first plunger. The sleeve flexes to bulge outwardly and does not enter the die cavity during compaction of material and returns to its original position during ejection of the compacted disk from the die. Contact between the disk and sleeve prevents flashing during ejection. Alternatively, a polymeric seal ring is placed around the outer surface of the first plunger. The disk presses against the seal ring preventing flashing of material during ejection.
摘要:
A method of compacting material such as but not limited to cathode material for electrochemical cells. A mixture is inserted into a die cavity and the mixture is compacted into a disk shape by the action of a first plunger pressing down on the material and a second plunger pressing upwardly on the material. Flashing of material during ejection of the disk from the die is prevented by fitting a polymeric sleeve around the outer surface of the first plunger. The sleeve flexes to bulge outwardly and does not enter the die cavity during compaction of material and returns to its original position during ejection of the compacted disk from the die. Contact between the disk and sleeve prevents flashing during ejection. Alternatively, a polymeric seal ring is placed around the outer surface of the first plunger. The disk presses against the seal ring preventing flashing of material during ejection.
摘要:
A spark plug assembly (10) for engine applications where the combustion chamber is difficult to access when servicing or replacing a spark plug. The spark plug assembly (10) includes a fairly traditional spark plug component (28) to which an elongated tubular conduit (12) is attached, such as by welding, to a portion of the metallic shell (32). The conduit (12) contains an upper ceramic insulator (52) adjacent its top end (14) disposed in end-to-end abutting contact with an outer elastomeric insulator (58). The ceramic insulator of the spark plug component (28), herein referred to as a lower ceramic insulator (30), is surrounded by the outer elastomeric insulator (58) and held securely within the conduit (12) thereby. An inner elastomeric insulator (62) is disposed in a continuous passageway formed between aligned central bores formed in the respective upper ceramic (52) and outer elastomeric (58) insulators. The inner elastomeric insulator (62) supports and further electrically isolates an elongated electrically conductive center electrode extension (48) that is in direct electrical conductivity with the center electrode (44) of the spark plug component (28). An ignition lead wire makes electrical contact with the center electrode extension (48) and thereby delivers electrical energy at timed intervals to the spark gap.