Arthur R Brown

US Patent:

46838490, Aug 4, 1987

Filed:

Nov 20, 1984

Appl. No.:

6/673393

Inventors:

Arthur E. Brown - Lake George NY

International Classification:

F02B 7506

US Classification:

123192B

Abstract:

An engine is disclosed in which two cylinders or guideways are mounted in a Vee or L formation with a reciprocable piston or crosshead in each. Connecting rods interconnect each reciprocable member to a crankshaft. Countershafts with balance weights thereon are referred to as balance shafts and these are driven at twice cranshaft speed in opposite directions and they serve to counterbalance the secondary reciprocating inertia forces. The balance shafts are mounted substantially parallel to the crankshaft instead of at right angles to the crankshaft as taught by Lanchester in a Vee machine. Thus, ordinary gearing can be used to drive the balance shafts instead of the skew gearing taught by Lanchester in a Vee machine. When the angle between the two cylinders is 90 degrees, only two not four balance shafts are required. When the machine has four cylinders in a 90 degree Vee, only two parallel balance shafts are required to serve all four cylinders.

US Patent:

42240166, Sep 23, 1980

Filed:

Sep 27, 1978

Appl. No.:

5/946320

Inventors:

Arthur E. Brown - Lake George NY

International Classification:

F01C 108
F04C 1808

US Classification:

418191

Abstract:

The machines may function as a rotary compressor, vacuum pump, expansion engine, or the like. Two interengaging rotors rotate within intersecting bores in a casing structure. Two higher pressure ports are located one in each flat end wall of the casing. One rotor opens and closes the two higher pressure ports so as to control the flow of air or gas through same. The optimum number of teeth or lobes for each rotor is two. The port controlling first rotor has lobes of small included angle so as to reduce the effect of a precompression loss. The coacting second rotor has lobes of larger included angle so as to improve performance.

US Patent:

47124369, Dec 15, 1987

Filed:

Oct 2, 1985

Appl. No.:

6/782893

Inventors:

Arthur E. Brown - Lake George NY

International Classification:

F16F 1526

US Classification:

74 44

Abstract:

A rotary crankshaft has multiple cranks. Each crank drives a reciprocating member in a cylinder or guideway via a con rod. Main counterweights are attached to the crankshaft and rotate therewith. Two contraweights rotate in the opposite direction from the crankshaft and at the same RPM as the crankshaft. The two contraweights are generally rotatably mounted on the crankshaft, coaxial therewith, and near each end of the crankshaft. The two contraweights are driven from the crankshaft by toothed gearing. The two contraweights plus the main counterweights combine forces so as to counterbalance the primary reciprocating inertia forces of a plurality of said reciprocating members. By proper adjustment of the size and angular location of both the main counterweights and the two contraweights, it is possible to obtain near perfect primary balance under any or all of the following conditions: (a) Any number of cranks. (b) Non equal reciprocating weights. (c) Non equal crank throws.

US Patent:

53985087, Mar 21, 1995

Filed:

Mar 5, 1992

Appl. No.:

7/846172

Inventors:

Arthur E. Brown - Lake George NY

International Classification:

F02B 7300

US Classification:

60718

Abstract:

A main internal combustion engine powers a motor vehicle at 55 MPH. A smaller auxiliary engine powers the vehicle at slower speed. Both engines power at the same time for passing, hill climbing, etc. Either engine can be shut down (or idled) while the other engine powers. Thus, the engines operate more closely to best efficiency and this shall result in reduced fuel consumption (as calculated herein) and less air pollution. In a first species, the main engine transmits shaft power through a standard friction clutch and then to an ordinary transaxle consisting of torque converter, automatic transmission and differential. The auxiliary engine is mounted next to the transmission. Power from the smaller engine passes through an overrunning clutch and then by toothed belt and sprockets to the torque converter. A second species is identical to the first except an over running clutch takes the place of the friction clutch.

US Patent:

43245382, Apr 13, 1982

Filed:

Apr 11, 1980

Appl. No.:

6/139224

Inventors:

Arthur E. Brown - Lake George NY

Assignee:

Ingersoll-Rand Company - Woodcliff Lake NJ

International Classification:

F01C 120
F04C 1820

US Classification:

418191

Abstract:

A rotary compressor, expansion engine, or the like. Two interengaging rotors rotate in a casing structure. The optimum number of lobes per rotor is two for pressure ratios up to about three. The first rotor has end plates thereon which open and close larger ports in the end walls. Low pressure dump pockets are formed twice per rotation and these have now been determined to have negligable loss. The first rotor has lobes of small angle so as to reduce a precompression loss. The second rotor has lobes of larger angle so as to improve performance. An interchamber throttling loss has now been reduced. When operating as a compressor machine, the discharge ports start to be uncovered about 15 degrees early for better performance.

US Patent:

49660420, Oct 30, 1990

Filed:

Feb 6, 1989

Appl. No.:

7/306835

Inventors:

Arthur E. Brown - Lake George NY

International Classification:

F16F 1526
F16H 2122

US Classification:

74 44

Abstract:

A large compressor has a four throw crankshaft, four connecting rods, four crossheads, and four horizontally opposed pistons. As usual, each piston is offset from its opposing piston and this causes the usual inertia force couples (primary couples and secondary couples). The crankshaft has counterweights thereon. A parallel oppositely rotating countershaft has balance weights thereon. These rotating weights balance the two primary inertia force couples. The crank sequence and the crosshead/piston locations are such that the two secondary inertia force couples counteract each other and no other secondary balancing device is needed. Further, the same counterweights also serve to balance the four crankpins and the large ends of the four connecting rods. Thus, the whole machine has near perfect balance with no unbalanced reciprocating primaries, reciprocating secondaries, primary couples, secondary couples, or rotating unbalance. The balancer parts can be retrofitted to existing compressor machines without removing the crankshaft from its frame or disturbing other compressor parts.

US Patent:

45093784, Apr 9, 1985

Filed:

Feb 22, 1983

Appl. No.:

6/468139

Inventors:

Arthur E. Brown - Lake George NY

International Classification:

F16F 1526
F16H 2122
F16C 304

US Classification:

74 44

Abstract:

This invention is best suited for counterbalancing a single reciprocating (recip) member (such as a piston). A con rod interconnects a rotary crankshaft to a recip member. Two main counterweights are attached to the crankshaft and rotate therewith. Two coaxial contraweights rotate in the opposite direction from the crankshaft and at the same RPM as the crankshaft. The two main counterweights plus the two contraweights combine forces so as to balance the primary recip inertia forces. Two secondary weights are mounted on two parallel countershafts and they rotate at twice crankshaft RPM and in opposite directions from each other so as to balance the secondary recip inertia forces. A positive toothed driving means (such as gearing) is used to drive the two said countershafts from the crankshaft. The same gearing plus the two said countershafts are also used to assist in driving the two said contraweights so as to minimize the total number of shafts, bearings, and gears. So as to further cut down on the number of gears and cost, two of the drive gears are extra wide; they mesh in two separate planes; and thus perform a double function.