Abstract:
An axial engine includes a cam assembly housing moveable away from a cylinder head to reduce a compression ratio during conditions giving rise to detonation and movable towards the cylinder head to raise the compression ratio when operation allows the higher compression ratio. Piston rod ends ride in counter rotating slots balancing lateral forces on the piston rods. Piston dwell at Top Dead Center (TDC) provides for constant volume combustion and extended piston travel during the power stroke allows for over-expansion. Rotary valves improve volumentric efficiency and water injection supports increased compression ratio leading to improved thermodynamic efficiency.
Abstract:
The invention relates to engine-building engineering. The inventive axial piston engine comprises a body, diametrically opposite cylinders which are arranged in pairs and each of which is provided with two opposing pistons, a main shaft with two oppositely-tilted discs, which are mounted thereon and on the outer surface of which three-dimensionally swinging washers are arranged via bearings, cylinder heads with inlet valves and return valves placed on a boost air path, an air grease skimming tank, a compressor, the intake and exhaust valves of the cylinder working part and nozzles. One three-dimensionally swinging washer provided with journals is assigned to each pair of cylinders. The pistons are provided with rods which are rigidly fixed thereto, have supporting pistons displaceable in guiding cylinders and transmit effort to the oppositely-tilted discs and to the main shaft via articulation joints supported by the journals of the three-dimensionally swinging washers. The compressor is used for the starting pre-filling of the grease skimming tank with compressed air and for increasing a pressure during operation, thereby making it possible to modify the compression rate and the engine power, respectively. Said invention makes it possible to increase the reliability and the performance factor and to modify the compression rate during the operation of axial piston engines.
Abstract:
A lash adjustment system for a roller is provided which includes a cam plate surface and a frustoconically shaped roller in mechanical communication with the surface. Means for moving the roller relative to the surface are included to urge the roller inwardly with respect to the cam plate in order to reduce lash.
Abstract:
An engine (1) is disclosed, comprising at least three, and preferably four, pistons (2) and their related cylinders (3); a rotating transmission shaft (7) having a rotation axis B-B and being equipped, at least for a certain section, with at least one cylindrical portion (8) whose rotation axis C-C is slanted with respect to such axis B-B; and at least one transmission member (9) adapted cooperate with the transmission shaft (7) next to the cylindrical portion (8) and to be connected through linkage members with each piston (2).
Abstract:
A swash plate disposed in a housing is a ball bearing assembly. The outer race of the ball bearing assembly is free to move relative to a swash plate drive shaft and also relative to reciprocating members driven by the swash plate and mounted for axial movement.
Abstract:
A mounting assembly (3) for connection of a drive mechanism to an engine (2). The engine (2) includes pistons, an engine block (5) and an output shaft (80). The assembly (3) includes a drive mechanism, connecting rods (4) and a pedestal (11), whereby the assembly (3) is mounted to the engine block (5) and the rods (4) are inserted into the cylinders. The pistons are then secured to the connecting rods (4). The pedestal (11) includes means to locate the assembly (3) on the engine block (5). The drive mechanism is preferably a wobble yoke with two beams (9), two lower yokes (60, 61) and a universal cross component. The pedestal (11) is secured to the block (5) through openings in the yoke.
Abstract:
A device and method for treating a wound of a patient with negative pressure is provided. The device comprises a heat-assisted pump system. The pump system can be powered in part by heat derived from the patient. The pump system may be configured to be highly planar, light weight, and portable. The pump system may comprise a Stirling engine or a thermal acoustic engine.
Abstract:
An internal combustion engine, a charger, an engine assembly, and a method for charging an internal combustion engine are provided. The internal combustion engine includes a cylinder having one or more pistons for driving a drive shaft assembly, and a delivery system for delivering air to the cylinder through the drive shaft assembly.
Abstract:
The invention relates to a device allowing a reciprocating translational movement to be converted into a continuous rotational movement and vice versa, by means of a swashplate that performs a "conical rolling" movement. The shafts (4, 5, 6) are mounted in a pivotably interconnected manner in the same plane. The swashplate (7) is pivotably connected about its axis of symmetry to the inclined shaft (6), and is connected to the frame via a finger swivel connection. The driving shaft that is slidingly connected to the support (3) allows the angle between the inclined shaft (6) and the intermediate shaft (5) to be reduced or increased. This angle is then transmitted to the plate (7) which tilts. During the rotation of the driving shaft (4), the movement of said driving shaft drives the inclined shaft via the intermediate shaft. The inclined shaft drives the plate such that it performs a "conical rolling movement" owing to the homokinetic-type finger swivel connection centered on the axis of the pivoting connection of the inclined shaft (6) and the accessory shaft (13). In this way, the "conical rolling movement" recovered in the plane is transmitted to the pistons via the connecting rods. The pistons then perform a reciprocating stroke in the cylinders, the amplitude of which depends on the incline of the angled shaft. The device of the invention is particularly suitable for replacing the movement conversion systems of axial piston pumps and engines, but also for allowing the use of heat engines having axial and opposing pistons.
Abstract:
A valve-free four-stroke combustion engine with axially opposed pistons, characteristic in that it comprises an engine block (6) that contains sliding cylinders (5) with pistons (4) pin-fastened to connecting rods with cogs (3) with a working hemisphere (7) and a reversible hemisphere (8), which are in permanent sliding contact with the inclined plate (2) attached to a shaft (1).