18554974. GAS INJECTOR HAVING A SHORT AXIAL DESIGN simplified abstract (Robert Bosch GmbH)

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GAS INJECTOR HAVING A SHORT AXIAL DESIGN

Organization Name

Robert Bosch GmbH

Inventor(s)

Martin Mueller of Moeglingen (DE)

GAS INJECTOR HAVING A SHORT AXIAL DESIGN - A simplified explanation of the abstract

This abstract first appeared for US patent application 18554974 titled 'GAS INJECTOR HAVING A SHORT AXIAL DESIGN

The gas injector described in the patent application is a device used for injecting gaseous fuel into a system.

  • The gas injector includes a magnetic actuator with an armature, an inner pole, and a coil, which controls the opening and closing of a gas path.
  • A closing element, connected to the armature, opens and closes a gas path at a sealing seat.
  • A closed-off lubricant chamber filled with lubricant ensures the armature's lubrication.
  • A flexible sealing element seals the lubricant chamber from the gas path.
  • A restoring element resets the closing element to a closed starting position.
  • A first needle guide, formed between a guide sleeve and the valve needle, is arranged in the lubricant chamber.
  • The first needle guide is positioned radially inside the flexible sealing element.
  • The restoring element is located inside the lubricant chamber, within the flexible sealing element.

Potential Applications: - Automotive industry for fuel injection systems - Industrial machinery for gas injection processes - Aerospace industry for propulsion systems

Problems Solved: - Efficient and precise injection of gaseous fuel - Lubrication of moving parts within the injector - Sealing of lubricant chamber from the gas path

Benefits: - Improved performance and reliability of fuel injection systems - Reduced maintenance requirements due to lubrication system - Enhanced control over gas injection processes

Commercial Applications: Gas injectors based on this technology can be used in various industries such as automotive, industrial, and aerospace for efficient and precise injection of gaseous fuel, leading to improved performance and reliability of systems.

Questions about Gas Injectors: 1. How does the magnetic actuator control the opening and closing of the gas path? 2. What are the potential applications of gas injectors in the automotive industry?


Original Abstract Submitted

A gas injector for injecting a gaseous fuel. The gas injector includes: a magnetic actuator having an armature, an inner pole and a coil; a closing element, having a valve needle, the closing element opening and closing a gas path at a sealing seat, the armature being connected to the closing element; a closed off lubricant chamber which is filled with a lubricant and in which the armature is arranged, the lubricant ensuring lubrication of the armature; a flexible sealing element sealing the lubricant chamber with respect to the gas path; a restoring element which resets the closing element to a closed starting position; and a first needle guide formed between a guide sleeve and the valve needle. The first needle guide is arranged in the lubricant chamber radially inside the flexible sealing element, and the restoring element is arranged in the lubricant chamber inside the flexible sealing element.