US 4,023,546 AGranted

Distributor for an internal combustion engine

AssigneeHitachi, Ltd.

InventorKazuhiko Kawakami

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Abstract

This invention relates to a distributor wherein at least two high voltage pulses are induced according to the rotation of an engine and wherein the high voltage pulses are respectively distributed to at least two spark plugs disposed for the cylinders of the engine. In order to make the structure of the distributor small, a first central terminal which receives one of the high voltage pulses is disposed along the axial direction of the distributor, a second central terminal which receives the other high voltage pulses is disposed in a direction perpendicular to the distributor axis, and first stationary terminals to which the first high voltage pulse is applied through a first rotor terminal from the first central terminal and second stationary terminals to which the second high voltage pulse is applied through a second rotor terminal from the second central terminal are arranged on concentric circles about the first central terminal.

Claims16

Dependent claims

A distributor comprising:

a shaft which rotates according to the rotation of an engine,
a distributor rotor which is mounted on one end of said shaft,
a housing in which said shaft is provided,
a cap which is mounted on said housing and in which said distributor rotor is provided,
a first central terminal which is provided at an upper surface of said cap,
first stationary terminals which are arranged in said cap along the circumference of a circle surrounding said first central terminal,
second stationary terminals which are arranged in said cap concentrically with said first stationary terminals around said first central terminal,
a first rotor terminal which is provided at an upper part of said distributor rotor, which is electrically connected with said first central terminal, and which radially extends towards said first stationary terminals,
a slip ring which is provided on a side portion of the outer periphery of said distributor rotor,
a second rotor terminal which is electrically connected with said slip ring and which extends towards said second stationary terminals, and
a second central terminal which is mounted on a side surface of said cap and which is electrically connected with said slip ring of said distributor rotor.

8 more elements

In a distributor having a distributor rotor mounted on a shaft which rotates according to the rotation of an engine, a housing within which said shaft is disposed, and a distributor cap mounted on said housing and containing said distributor rotor therein, said cap having a central terminal provided at an upper surface thereof and a plurality of first stationary terminals arranged in said cap along the circumference of a first circle which surrounds said central terminal, and said rotor having a first rotor terminal electrically connected with said central terminal and extending radially so as to come in electrical contact with each respective one of said first stationary terminals upon the rotation of said rotor, the improvement wherein

said distributor cap further includes
a plurality of second stationary terminals arranged in said cap along the circumference of a second circle which surrounds said central terminal and is concentric with said first circle, and
a side terminal disposed at the side of said cap, and
said distributor rotor further includes a second rotor terminal electrically connected with said side terminal and extending radially so as to come in electrical contact with each respective one of said second stationary terminals upon the rotation of said rotor.

1 more element

Dependencies are inferred from the claim text.