Patent · US Expired

Piston-type internal-combustion engine with throttle-free load control and a device for generating a vacuum, and method for operating the device

US6425356B1 · kind B1 · utility

12Cited by

8References

9Claims

0Family size

Assignee

FEV MOTORENTECHNIK GMBH · DE

Inventors

Martin Pischinger · Aachen, DE
Markus Duesmann · Stuttgart, DE
Enno Lohse · Stolberg, DE
Michael Schebitz · Attendorn, DE
Wolfgang Salber · Aachen, DE

Key dates

Filing date	Sep 5, 2000
Grant date	Jul 30, 2002
Priority date	—
Expiry date	Sep 5, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/0682
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a piston-type internal combustion engine comprising gas-exchange valves which can be driven in a completely variable manner by a motor control (2) and which communicate with an air supply channel (4) provided with a device (6) for generating a negative pressure using the energy components of the air flowing through said air supply channel (4). This device is provided with means that can be driven for adaptation to the modifications in the flow energy which are inherent to the operation, and communicates with at least one negative-pressure user (8, 9, 10) through at least one negative-pressure duct (7).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.