US 5,347,968 A · Integral air compression system

Abstract

Air compression systems for internal combustion engines are utilizing an integral part of the engine to produce the compressed air necessary for operating the brakes of a vehicle. The ability to produce compressed air from an integral part of the engine is important in order to reduce the cost and weight associated with the engine and to increase performance capability and reliability. The integral air compression system includes a valve means associated with one of a plurality of combustion chambers. A housing is connected to a cylinder head and has first and second bore. A master piston is disposed within the first bore to define a first oil chamber. A slave piston is disposed within the second bore to define a second oil chamber. A means fluidly connects the first and second oil chambers. The master piston is forced toward the first oil chamber when another one of the combustion chambers is in the exhaust stroke. The second oil chamber becomes pressurized and forces the slave piston to open the valve means during the compression stroke of the one combustion chamber allowing compressed air to flow through a passage in the head and into a storing means. A means for monitoring the pressure in the storing means is utilized to control the integral air compression system.

Claims12

Dependent claims

An integral air compression system for an internal combustion engine having a block defining a plurality of cylinders, a head mounted in closing relation to the cylinder block to define a plurality of combustion chambers, a piston reciprocally disposed within each of the cylinders and movable between top dead center and bottom dead center positions sequentially defining an intake stroke, a compression stroke, an expansion stroke, and an exhaust stroke, and exhaust means operatively associated with each combustion chamber for permitting a flow of gas out of the combustion chamber during the exhaust stroke, comprising:

means defining a passage in the head in communication with one of the plurality of combustion chambers;
valve means for controlling communication between the one combustion chamber and the passage, the valve means being movable between closed and open positions;
means for selectively moving the valve means to the open position to permit a flow of air out of the one combustion chamber during the compression stroke;
and
means connected to the passage for storing the flow of air expelled from the one combustion chamber.

2 more elements

Dependencies are inferred from the claim text.

Integral air compression system

Life of this patent

Integral air compression system

Life of this patent

Abstract

Claims12