Multiple piston expansion chamber engine

Patent · Tue May 03 04:00:00 EDT 1988

OSTI ID:7224581

Jackson, F W

The method of operation for the extraction of work from combusted products in two chambers hereafter referred to as working and auxiliary having a means of controlling isolation between the two the chambers is described comprising of isolating the working chamber from the auxiliary chamber when the working chamber piston is at substantially TDC, admitting a charge of pressurized carbureted air into the working chamber as the working chamber piston moves toward BDC, closing a valve admitting the charge after the working chamber piston is past BDC but before it is midway to TDC, compressing the charge in the working chamber, initiating combustion of the charge prior to the working chamber piston passing TDC, expanding the combusted products in the working chamber unit a point in the cycle after combustion is completed and before the working chamber piston is within 60 degrees of BDC, and expansion of the combusted products in the working chamber piston chamber prior to establishing communication between the working and auxiliary chambers shall not exceed four.

• Assignee: NOV; NOV-88-016007; EDB-88-130625
• Patent Number(s): US 4741296
• OSTI ID: 7224581
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
COMBUSTION CHAMBERS
COMBUSTION CONTROL
COMBUSTION PRODUCTS
CONTROL
CONTROL EQUIPMENT
DESIGN
EMISSION
ENGINES
EQUIPMENT
EXHAUST GASES
EXHAUST SYSTEMS
EXPANSION
FLOW REGULATORS
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
OPERATION
PISTONS
VALVES
WASTES