18292576. High-Pressure Fuel Pump simplified abstract (Robert Bosch GmbH)
Contents
High-Pressure Fuel Pump
Organization Name
Inventor(s)
Thomas Froihofer of Brackenheim (DE)
Rainer Kornhaas of Stuttgart (DE)
Guido Bredenfeld of Friedrichshafen (DE)
Stephan Wehr of Heiligenstadt (DE)
High-Pressure Fuel Pump - A simplified explanation of the abstract
This abstract first appeared for US patent application 18292576 titled 'High-Pressure Fuel Pump
Simplified Explanation:
The abstract describes a high-pressure fuel pump with a pressure-limiting valve that connects high-pressure and low-pressure regions, opening towards the low-pressure side. The valve is located in a through bore in the pump body, closed by a pressed-in closure on the damping region side. The valve bore is stepped, with a larger diameter first portion, a smaller diameter second portion, and an annular step between them. The valve seat body and valve element are pressed into the bore, with the valve element pushed by a holding element and spiral spring supported on the annular step.
- The high-pressure fuel pump features a pressure-limiting valve connecting high and low-pressure regions.
- The valve is located in a through bore in the pump body and closed by a pressed-in closure on the damping region side.
- The stepped bore design includes a larger diameter first portion, a smaller diameter second portion, and an annular step between them.
- The valve seat body and valve element are pressed into the bore, with the valve element pushed by a holding element and spiral spring supported on the annular step.
Potential Applications:
This technology can be applied in high-pressure fuel pump systems in automotive, marine, and industrial settings where precise pressure control is required.
Problems Solved:
This technology addresses the need for reliable pressure control in high-pressure fuel pump systems, ensuring efficient and safe operation.
Benefits:
The benefits of this technology include improved fuel system performance, enhanced safety, and extended pump lifespan due to precise pressure regulation.
Commercial Applications:
Potential commercial applications include automotive fuel systems, marine propulsion systems, and industrial machinery requiring high-pressure fuel delivery with precise control.
Questions about High-Pressure Fuel Pump Technology: 1. What are the key components of a high-pressure fuel pump system? 2. How does the pressure-limiting valve in this technology contribute to the overall performance of the fuel pump system?
Original Abstract Submitted
A high-pressure fuel pump has a pressure-limiting valve, which fluidically connects a high-pressure region to a low-pressure region and opens towards the low-pressure region. The pressure-limiting valve is disposed in a pressure-limiting valve bore, which is designed as a through bore through the pump body, extends from a damping region to a stepped chamber, and is closed on the side facing the damping region by a pressed-in closure. The pressure-limiting valve bore is a stepped bore having a larger diameter first portion, a smaller diameter second portion, and an annular step between the first and second portions The pressure-limiting valve has a valve seat body pressed into the pressure-limiting valve bore, and a valve element, which is pushed in the closing direction by a holding element, which is pushed in the closing direction by a spiral spring, which is supported on the annular step.
