Liquid cooled housing for rotary piston engines

Claim 2

A rotary piston engine having liquid cooled housing consisting of at least one annular shell and two end parts, the housing having an inlet and an outlet connection for a coolant liquid and the shell and end parts containing chambers in communication with each other, a coolant liquid, where the coolant liquid flows axially through the passages of the shell, means for reversing the flow of the liquid in the chambers of the end parts, and the coolant liquid ports in the joining faces of the shell and end parts being sealed individually by means of packing rings encircling such ports.

Claim 3

The invention in accordance with claim 1 wherein a multiple rotary piston engine is provided having a plurality of shells, a housing interpart being arranged in each instance between neighboring shells, chambers are provided in the interpart connecting the chambers of the neighboring shells with eacH other, the coolant liquid ports in the joining faces of the shells and interpart being individually sealed by means of packing rings encircling said ports.

Claim 4

A liquid cooled housing according to claim 2 wherein a chamber is provided in the interpart to divert some of the cooling liquid coming in out of the chamber embracing the exhaust passage of one of the adjoining shells.

Claim 5

A liquid cooled housing for rotary piston engines consisting of at least one annular shell and two end parts, the housing having an inlet and an outlet connection for a coolant liquid and the shell and end parts containing chambers in communication with each other, a coolant liquid, where the coolant liquid flows axially through the passages of the shell, and means for reversing the flow of the coolant liquid in the chambers of the end parts, the coolant liquid ports in the joining faces of the shell and end parts being sealed individually by means of packing rings encircling such ports, a spark plug sector and an exhaust passage, the chambers of the shell being connected in series by the chambers of the end parts in such manner that first the spark plug sector, then the sector following towards the exhaust passage, and then the sector around the exhaust passage are traversed by cooling liquid.

Claim 6

A liquid cooled housing for rotary piston engines consisting of at least one annular shell and two end parts, the housing having an inlet and an outlet connection for a coolant liquid and the shell and end parts containing chambers in communication with each other, a coolant liquid, where the coolant liquid flows axially through the passages of the shell, and means for reversing the flow of the coolant liquid in the chambers of the end parts, the coolant liquid ports in the joining faces of the shell and end parts being sealed individually by means of packing rings encircling such ports, a spark plug sector and an exhaust passage, the chambers of the shell being connected in series by the chambers of the end parts in such manner that first the spark plug sector, then the sector following towards the exhaust passage, and then the sector around the exhaust passage are traversed by cooling liquid.

Claim 7

The invention in accordance with claim 4 wherein the engine is for vehicle propulsion and includes a heat exchanger of a vehicle heating system wherein a supply connection for the heat exchanger of a vehicle heating system branches off from the chamber of that end part which effects the first reversal of the liquid, the outlet connection of the heat exchanger communicating with the return of the coolant liquid circuit.