Rotary expansible chamber devices – Heat exchange or non-working fluid lubricating or sealing – With pump for non-working fluid
Reexamination Certificate
2001-05-29
2002-11-05
Vrablik, John J. (Department: 3748)
Rotary expansible chamber devices
Heat exchange or non-working fluid lubricating or sealing
With pump for non-working fluid
C418S061200
Reexamination Certificate
active
06474965
ABSTRACT:
BACKGROUND OF THE INVENTION
This application claims the priority of German application 100 26 447.6, filed May 27, 2000, the disclosure of which is expressly incorporated by reference herein.
This invention refers to a trochoidal design rotary piston engine with a rotary housing, two side disks, one with a bearing supported eccentric shaft and a rotary piston.
Such rotary piston engine, for example, is also known from the German Patent Document DE-C 40 03 663 (corresponding U.S. Pat. No. 5,199,863). In this type of a rotary piston engine, the supply of lubricant, cooling oil, and metered oil occurs by way of an additional set of devices propelled by the drive system of the rotary piston engine.
An object of the invention is to accomplish the task of providing the engine with an efficient supply of lubricant, cooling oil, and metered oil in a simplified manner.
This object has been achieved according to preferred embodiments of the invention in that the eccentric shaft in the area of one of the side disks is equipped with a cogwheel which forms a cogwheel pump with one of the side disk bearing supported cogwheels for pressure oil supply from which the drive of the oil metering pump is derived.
This type of construction provides a basis for a very compact drive, including a pump.
According to a further advantageous design development of the preferred embodiment of the invention, it is expected that the side disk mounted cogwheel will have a greater diameter, preferably at least twice the diameter, than the eccentric shaft cogwheel that would be connected to the oil-metering pump. That would also achieve that the oil-metering pump would be driven at a relatively lower rate of revolutions as it is found to be desirable in practice.
Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawings.
REFERENCES:
patent: 4657009 (1987-04-01), Zen
patent: 4729726 (1988-03-01), Kurio et al.
patent: 5100309 (1992-03-01), Eiermann et al.
patent: 2514733 (1975-11-01), None
Brandenburgische Forschungs-und Entwicklungsgesellschaft Cottbus
Crowell & Moring LLP
Vrablik John J.
LandOfFree
Rotary piston engine having a cogwheel pump and an oil... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotary piston engine having a cogwheel pump and an oil..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotary piston engine having a cogwheel pump and an oil... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2939782