Barrel type internal combustion engine

• US 5,749,337 A
• Filed: 03/31/1997
• Issued: 05/12/1998
• Est. Priority Date: 03/31/1997
• Status: Expired due to Term

• Current Assignee: Palatov Cleantech Solutions, LLC
• Original Assignee: Dennis Palatov
• Inventors: Palatov, Dennis
• Primary Examiner(s): Okonsky, David A.
• Application Number:
  US08/829,282
• Time in Patent Office: 407 Days
• Field of Search: 123/56.1, 123/56.2, 123/56.3, 123/56.5, 123/56.6, 123/56.9, 123/61 R, 123/62
• US Class Current: 123/56.2
• CPC Class Codes: F01B 3/04 the piston motion being transmitted by curved surfaces
• CPC Class Codes: F02B 2075/025 two
• CPC Class Codes: F02B 2075/1824 six
• CPC Class Codes: F02B 75/26 Engines with cylinder axes coaxial with, or parallel or inclined to, main-shaft axis; Engines with cylinder axes arranged substantially tangentially to a circle centred on main-shaft axis

Abstract

A barrel type engine with two-stroke cycle of operation. The engine of the present invention comprises two engine halves, each half having a plurality of pumping cylinders and a matching number of power cylinders. Double-ended pistons impart rotational motion to the engine shaft by a cam. The cylinder arrangement of the present invention facilitates efficient communication of intake air between the pumping cylinders and the power cylinders contained within each engine half, and further establishes a natural and beneficial timing relationship between the action of the pumping cylinders and the action of the corresponding power cylinders. In operation, intake air is drawn into the pumping cylinders and then transferred to the power cylinders by a transfer duct system. Due to the natural timing characteristics inherent in the engine of the present invention, intake air is forcibly transferred to the power cylinders with minimum parasitic pumping loss, ensuring favorable cylinder scavenging and filling for maximum efficiency. The diameter of the pumping cylinders is larger than that of the power cylinders, resulting in a net supercharging effect and further enhancing power output. The present invention takes advantage of the inherent characteristics of barrel type engines to achieve favorable intake and exhaust gas flow, resulting in increased power and efficiency.

Claims

1. An internal combustion engine of a barrel type comprising two halves, each half of said engine having a plurality of pumping cylinders and a plurality of power cylinders, said power cylinders being equal in number to said pumping cylinders, said power cylinders operating with a two-stroke working cycle, and said pumping cylinders and said power cylinders being formed by a number of pistons being slidably received within a corresponding number of cylinder bores, and, transfer ducts to place said pumping cylinders within each half of said engine in communication with said power cylinders within the same engine half.

2. The engine of claim 1 wherein said pumping cylinders are of larger diameter than said power cylinders.

3. The engine of claim 1 wherein said number of pistons comprise a plurality of identical double-ended pistons having a pumping end and a power end, each of said plurality of pumping cylinders of the first engine half being aligned with respective ones of said power cylinders of the second engine half, and each of said plurality of pumping cylinders of said second engine half being aligned with respective ones of said plurality of power cylinders of said first engine half.

4. The engine of claim 3 wherein said plurality of pumping cylinders are formed by the pumping end of each of said plurality of double-ended pistons being slidably received in respective ones of said cylinder bores.

5. The engine of claim 4 wherein said plurality of power cylinders are formed by the power end of each of said plurality of double-ended pistons being slidably received in respective ones of said cylinder bores.

6. The engine of claim 1 wherein said number of pistons comprise a plurality of double-ended pumping pistons and a plurality of double-ended power pistons, each of said plurality of pumping cylinders of the first half of said engine being aligned with respective ones of said plurality of pumping cylinders of the second engine half, and each of said plurality of power cylinders of said first engine half being aligned with respective ones of plurality of power cylinders of said second half.

7. The engine of claim 6 wherein said plurality of pumping cylinders are formed by one end of each of said plurality of double- ended pumping pistons being slidably received in respective ones of said cylinder bores.

8. The engine of claim 7 wherein said plurality of power cylinders are formed by one end of each of said plurality of double-ended power pistons being slidably received in respective ones of said cylinder bores.

9. The engine of claim 1 wherein the number of said plurality of pumping cylinders and the equal number of said plurality of power cylinders withing each half of said engine is two.

10. The engine of claim 1 wherein the number of said plurality of pumping cylinders and the equal number of said plurality of power cylinders within each half of said engine is three.