Fuel injection device for spark-ignition internal combustion engines
AssigneeRobert Bosch GmbH
InventorsHelmut Rembold, Ernst Linder
Life of this patent
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Abstract
Fuel injection device for spark-ignition internal combustion engines having a pump and a distributor with a reversing valve, which distributor is preferably driven at pump speed and has a stationary and a rotating part. The reversing valve is arranged inside the rotating part of the distributor, preferably concentrically, and its inlet opening is connected with the pump work space via a line which likewise extends exclusively inside the rotating part of the distributor.
Claims42
A fuel injection device for spark-ignition internal combustion engines, comprising a pump having a pump work space;
- a distributor having a rotating part which alternately connects a feed line of a pump with injection lines leading to individual cylinders of the internal combustion engine as a function of an angle of rotation;
- and a reversing valve actuated as a function of a load and a speed of the internal combustion engine, said reversing valve being arranged inside said rotating part of said distributor and having an inlet opening connected with said pump work space of said pump via a connection line which also extends exclusively inside said rotating part of said distributor, said reversing valve having a valve slide and two outlet openings, said valve slide forming a work piston of a hydraulic drive, said work piston being acted upon by a hydraulic fluid at its front side and forming a seal for the respective outlet opening of said reversing valve to be blocked with its side wall.
A fuel injection device for spark-ignition internal combustion engines, comprising a pump having a pump work space;
- a distributor having a rotating part which alternately connects a feed line of a pump with injection lines leading to individual cylinders of the internal combustion engine as a function of an angle of rotation;
- and a reversing valve actuated as a function of a load and a speed of the internal combustion engine, said reversing valve being arranged inside said rotating part of said distributor and having an inlet opening connected with said pump work space of said pump via a connection line which also extends exclusively inside said rotating part of said distributor, said rotating part of said distributor forming a work piston of said pump.
Dependencies are inferred from the claim text.