Abstract: A mobile machine for rehabilitating a track has a machine frame extending in a longitudinal direction and supported by undercarriages for mobility on the track in an operating direction, the machine frame being composed of a leading frame part with respect to the operating direction and a trailing frame part connected to the leading frame part by an articulation, with at least one working unit being mounted on the machine frame for adjustment relative thereto. A reference system for controlling the position of the working unit is arranged on the leading frame part and consists of a reference line extending in the longitudinal direction between two of said undercarriages, a measuring axle designed to roll on the track, and a measuring device connected to the measuring axle for detecting a movement, transversely to the longitudinal direction, of the measuring axle relative to the reference line.

Abstract: Before replacing an old tie with a new tie in a railroad track, the associated tie plates are temporarily welded to the respective rail bases of the two rails with the aid of an old rail spike.

Abstract: A roller coaster device which can operate a seat together with a car to perform a perpendicular running motion such as vertical descent, vertical ascent, vertical spiral motion and the like, or in such a manner as to run backwards. The device significantly increases thrill and interest levels by creating the sensation that the endless running rail suddenly disappears from the view of the occupants in the roller coaster device. The device can be configured in a small space and in a compact manner. A car (4) is mounted on the endless running rail (1) having a desired length that is provided in a rolling and bending manner through rollers (6) so as to run freely while being held thereto, and seats (11a, 11b) are suspended on the car 4 by mounting members (12a, 12b) so as to rotate freely.

Abstract: A safety bracket for a vehicle used on a monorail having a top and bottom is disclosed. The vehicle includes a trolley that engages the monorail and propels the vehicle along the monorail. A load portion is attached to the trolley. The load portion can perform predetermined tasks. The safety bracket is connected to the vehicle between the trolley and the load portion. The safety bracket fully supports the vehicle on the monorail when the trolley separates from the monorail. The safety bracket is adapted to move with the trolley and the load portion. The safety bracket includes an attachment piece attached to the vehicle and positioned between the trolley and the load portion. An arm piece is attached to the attachment piece and extends over and above the top of the monorail. The arm piece has an hook section that extends a predetermined distance below the top of the monorail.

Abstract: An energy absorber device for use in vehicles, in particular railroad vehicles, is of generally parallelepipedal shape and can be inserted between a driver's cab and a coach-body. The larger opposite faces of the parallelepiped are disposed in a plane formed by the rear face of the driver's cab and in a plane formed by the front face of the coach-body, respectively.

Abstract: A computer desk comprises a base, an upright support rod fastened at one end thereof with the base, a computer desktop mounted on other end of the upright support rod, a main unit desktop mounted on the base, a periphery desktop fastened with the upright support rod and located under the computer desktop, and a keyboard desktop fastened adjustably with the upright support rod by two pivoting pieces, a bracket, a pivoting seat, two fastening rods, and a plurality of receptacles, plastic bodies and screws.

Abstract: The invention of the application relates to a table which has a table top with at least five sides and one of the sides is shorter than the remaining sides. The remaining sides can in one embodiment all be of the same length. The provision of the table top in this form allows the same to be used on its own to accommodate four people, each sitting at the table and none required to straddle a table leg as is conventionally the case. The table can also be used with other tables as part of a table system with the tables abutting and each table providing at least two seating positions. There is also provided as a further aspect of the invention engagement means which allow the tables to be held in the required position.

Abstract: The present computer keyboard support assembly comprises a platform suitable for supporting a keyboard mechanism having one end of an arm pivotally mounted to the platform and the other end pivotally mounted to a mounting bracket which is attached to the underside of a work surface. A compensating mechanism utilizing a driving mechanism interacting with the pivot mountings for the arm and controlling the orientation of the platform, as the platform is moved to and from a storage and use position.

Abstract: A multi-level rotational shelf structure including top and bottom suspension tubes fastened to the surface of a wall with a plurality of shelves between the suspension tubes. Each shelf is supported on a bushing assembly which enables each shelf to pivot about an axis between the top and bottom suspension tubes independently of the other shelves. An upright tube extends between adjacent shelves acting as a spacer and a mount for the bushing assemblies.

Abstract: A foldable table frame includes a table support apparatus which includes a set of our tabletop support arms slidably connecting at their inner, crossing ends to two opposing tabletop support arm holders and at their outer ends pivotally connecting to four frame top joints, such that each set of two tabletop support arms opposedly face with each other and are parallel to the other set of the two tabletop support arms. The table support apparatus further includes a pair of table support pillars for providing greater stability for the table support apparatus for supporting a foldable tabletop, each connecting at its upper end between the respective pair of tabletop support arm holders and at its lower end to a foldable table frame body. The foldable table frame is arranged to allow being pushed together in one motion to fold up the foldable table frame or pulled open to unfold the foldable table frame for the foldable tabletop to mount thereon.

Abstract: An expandable stinger planter is described for attachment to an excavator type boom. The planter includes a frame arrangement that may be releasably secured to the boom, with a stinger depending therefrom. The boom may be selectively operated to drive the probes deep into the ground. The stinger includes a pair of elongated probes that have bottom ends configured to be opened and closed by operation of an actuator assembly. The actuator assembly is selectively operable to shift the probes relative to one another between a closed position wherein the bottom ends are closed together, and an open position wherein the bottom ends are spaced apart from one another to form a plant discharge opening. The probes form an upwardly open internal plant receiving receptacle that is open to the plant discharge opening at the open position whereby a plant placed in the plant receiving receptacle may be discharged through the plant discharge opening as the probes are lifted by the boom.

Abstract: An air seeder for planting agricultural crops includes: a storage tank for containing particles to be dispensed; a metering mechanism for transferring particles from the storage tank; an air distribution system for receiving particles from the metering mechanism, the air distribution system comprising a bank of tubes for transporting particles in a flow of air having a flow rate, and a damper mechanism at the bank of tubes for selective control of the flow rate within the bank of tubes; an air flow source for providing a flow of air to the bank of tubes; a particle velocity sensor located at each tube for providing a sensor output signal corresponding to a measured particle velocity; and a control mechanism operably connected to the sensors and to the damper mechanism for selective adjustment of the flow rate in the bank of tubes, the control mechanism being adapted to receive the sensor output signals, normalize the values corresponding to the sensor output signals, and display the normalized values.

Abstract: An embroidery stitch data producing device with selective designation confirming functions is disclosed, wherein embroidery stitch data are produced from the image data obtained from an original image for defining the outlines and the blocks enclosed by the outlines with stitch conditions including stitch types and thread colors being designated. The outlines and the blocks so designated are classified and memorized.

Abstract: The invention discloses an embroidering apparatus and a sewing machine used in combination with the embroidering apparatus which may be reduced in size for the convenience of being housed, wherein the embroidering apparatus comprises a fixedly positioned X-arm 1 and a Y-arm 4 operatively connected to the X-arm 1 which is operated to move the Y-arm 4 in the X-direction while the Y-arm 4 holds an embroidery frame 7 and is operated to move the embroidery frame 7 in the Y-direction, the Y-arm 4 being turnable relative to the X-arm 1 between a first position where the Y-arm 4 is extended normal to the X-arm 1 and a second means where the Y-arm 4 is extended in parallel with the X-arm 1, in which the size of the embroidering apparatus is reduced to the minimum.

Abstract: A quilting machine is provided having a first station and a second station, one being a printing station and one being a quilting station. The printing station is located either in line and preferably upstream of the quilting station, with a conveyor extending through each of the stations to convey a web of quilting material through the machine, or is off of the quilting line such that the material with a pre-applied pattern thereon is transferred, preferably in web form, to the line of the second station for the application of a pattern in registration with the first applied pattern. At the second station, for example, registration of a plurality of transversely spaced points is detected to determine longitudinal and transverse registration as well as skewing or rotation of the material, and the opposite transverse sides of the material are differently adjusted to orient and register the material.

Abstract: An apparatus for orienting open-toe sock blanks includes a tube for receiving a sock blank sleeved thereover such that the open toe end of the blank extends beyond the end of the tube, a clamping mechanism for engaging the blank against the tube and for rotating the blank about the tube, a sensor system for detecting one or more predetermined features on the toe end of the blank so that the blank can be rotated to a proper orientation for sewing the toe end closed, and a spreader device that moves into the open toe end of the blank and spreads the toe end into a flattened orientation so that overlying edge portions of the open toe end are generally aligned with each other, and then moves away from the tube to remove the blank from the tube and transport the flattened toe end into an automatic sewing machine for sewing the overlying edge portions of the toe end together.

Abstract: A small planing personal watercraft including a hull, a straddle-type seat atop the deck of the hull, and a four cycle engine located internally of the hull is provided with one or more engine air intake tubes extending approximately horizontally in the hull in its normal flotation position. A carburetor supplying fuel to the engine intake air is located in the intake tube with a pivoting throttle valve located in the carburetor. The pivot axis of the throttle valve is oriented vertically relative to the carburetor and intake tube. An access opening is provided above the engine and various fuel control elements are disposed so they are readily accessible through the access opening.

Abstract: A transonic hydrofield TH has been established which defines the shape of a displacement transonic hull (TH). The hydrofield is characterized in not having curvatures such as shoulders, midbody, or rear quarter, with a deep draft forward and shallow draft aft. In consequence of TH's shape, surface wave-making sources typical of conventional displacement hulls are eliminated. The transonic hull TH corresponding to the hydrofield has substantially triangular waterplane in dynamic displacement conditions, maximum draft forward, and minimum draft aft, and planing lateral surfaces inclined at large angle are vertical to the waterplane.

Abstract: A system for equalizing buoyancy of a submersible vehicle. The buoyancy elization system includes a submersible vehicle having a plurality of releasable objects. Ballast release means are positioned on the submersible vehicle, and a plurality of ballast vessels are joined to said submersible vehicle by the ballast release means. One ballast vessel is released upon release of one of said releasable objects in order to equalize buoyancy.

Abstract: A hydraulic system for the control of boats, ships and crafts in general that comproses nozzles (1, 2) opposed and the end of the stem, having a Venturi tube throttling (8) or an internal diameter reduced by means of flanges (10), so as to be able to determine, following to the outlet of the fluid under pressure, the movement by reaction of the front part of the boat (N) and therefore to perform immediate leftward or rightward curvings according to the nozzle used, and/or corresponding nozzles (3, 4), placed nearby the stern and with similar background function, while the operating the hydraulic reaction of both nozzles placed on the same side determines the parallel movement on the whole craft, for moming alongside to quays or for performing other maneuvers.

Abstract: A glazing material assembly for closing a window, hatch, or windshield opening in a boat is simple and easy to install and does not require the use of chemicals nor have the time delays associated with conventional installation procedures. The glazing material assembly includes a transparent or translucent piece of glass, or other conventional glazing, having a circumferential portion, and first and second opposite faces, and at least one relatively rigid angle (made of aluminum, fiberglass, molded plastic, or the like) connected to the second face and extending adjacent and generally coincident with the circumferential portion. The angle has first and second substantially transverse interior surfaces which cooperate with like surfaces on a boat cabin body defining an opening which the glass assembly closes. The glass may have a substantially polygonal shape having a plurality of sides, and the at least one angle preferably comprises a plurality of angles, one for each of the sides of the polygon shape.

Abstract: A traveler comprises a car slideably held on a track, and is useful for applications including trimming a sailboat mast or sail. The car has two side portions each with a race with an open portion. Ball bearings are contained in each race that are rotatably engaged between the race open portions and the grooves on the sidewalls of the track. The car further has retaining means for holding the ball bearings in place along the open portion of the race when the car is removed from the track. The retaining means are movably received by the track groove, and otherwise allow for free rotational engagement of the groove by the bearings.

Abstract: A shock absorber device is provided for use in absorbing sea surges in mooring and marine towing applications at sea. The device includes a unitary anchor member disposed in a housing. The anchor member includes a rod having an eyelet at one end thereof for attachment to a shackle and a plurality of laterally extending flange members spaced along the length thereof for securing the member in the housing. A unitary piston member, including a rod including a flange or piston plate at one end thereof and an eyelet at the opposite end, is mounted in the housing so as to enable rotation of the piston member about the axis of the rod of the piston member. A coil spring surrounds a portion of the rod of the piston member. The piston member and coil spring are received in a cavity in the housing such that a first end of the coil spring abuts the flange of the piston member and the opposite end of the coil spring abuts an inwardly facing end wall of the cavity.

Abstract: A boat wake enhancer is described comprising a water tank mounted at the rear of an inboard motor boat, wherein the tank can be filled and emptied while the boat is in use. When filled, a more desirable wake is provided for water skiing and when emptied, the boat will plane more easily and generate a smaller wake.

Abstract: A system is disclosed to reduce the impact shock associated with operating a planing boat at high speeds. The system, called "LocalFlex," comprises an outer bottom placed under the inner bottom of the boat. The outer bottom is spaced a distance from the inner bottom. The outer bottom comprises two plates. Each plate is connected to the inner bottom along or near the keel, and along or near the chine. Along the keel, each plate of the outer bottom is attached to one or more hinges or pins rigidly suspended from or below the keel of the inner bottom. At or near the chine, each plate is connected to the boat by one or more springs. The elastic modulus of the plates and that of the springs are selected so that the outer bottom deforms under the pressure spike of an impact in a whip-like flexure that smoothly directs the pressure spike past the chine. After the spike passes the chine, the pressure diminishes and makes no further significant contribution to impact slamming.

Abstract: A knock-down canopy shelter for a boat, such as a pontoon boat, including a cover sheet of fabric, such as canvas, for overlying the deck of a boat, and a knock-down canopy framework which can be disassembled for storage and shipping and assembled to support the covering over the deck. The framework includes a pair of elongate side rails which are mounted on laterally opposite sides of the boat and include laterally integrally lower upstanding elongate slotted portion for mounting port post projecting upwardly from the boat, and an upper elongate lift supporting portion including laterally inwardly, upwardly inclined elongate slots.

Abstract: A deck floor for a personal watercraft establishes the foot placement based on the body build of the driver without the soles of the feet being bent back. The deck floor includes: a pair of floor faces with a floor face positioned on each side of a seat, a pair of step faces formed ahead of the floor faces, and a pair of intermediate step faces formed between the floor faces and the step faces. Each floor face includes a first plane portion which is substantially horizontal and is continuous to the intermediate step face, and the step face includes a second plane portion which also is continuous to the intermediate step face and is inclined forwardly and upwardly. The intermediate step face is a plane which is inclined at a middle inclined angle between an inclined angle of the first plane portion and an inclined angle of the second plane portion.

Abstract: A supplemental reflective and informational member securable to a mounting member positionable within the C-shaped channel of existing traffic sign posts. The supplemental reflective and informational member can provide information of a safety, directional or commercial nature.

Abstract: Lifesaving device for people in avalanches with two balloons at least one balloon is a tear-resistant balloon, which can be securable close to a user's body by means of an attachment. In an emergency the device is inflated by mean of pressurized gas so that it, just like a buoyancy body, keeps its user at the surface of the avalanche. A filling device connects at least one of the balloons to at least one pressurized gas container. The filling device includes a device to open the container and is connected to a filling hole of the balloon, in which case the pressurized gas container with filling device is secured, independent of the balloon, to the body of the user. Each balloon includes at least one pressurized gas container. The filling device for a complete, full filling of the balloons by means of the pressurized gas drawn from the pressurized gas bottles is connected via a pressure line to the filling hole of the balloon. All opening devices can be actuated via a common release mechanism.

Abstract: A time-temperature indicator indicates the useful shelf life of an associated product which may be affected by the passage of time and an applied temperature. A creeping material has a first end connected to a first fixed location and a second end connected to a load applying device such as a spring. In response to application of the load applying device, the passage of time, and the application of various temperatures, the creeping material will increase in length in a known manner. An indicator associated with the creeping material indicates whether the passage of time and application of various temperatures have caused the associated product to exceed its useful shelf life.

Abstract: A film-forming method by a plasma CVD process, comprising introducing a raw material gas into a reaction chamber containing a substrate positioned therein through a plurality of gas ejecting holes provided at a gas feed pipe and introducing a discharging energy into said reaction chamber to excite and decompose said film-forming raw material gas introduced into said reaction chamber whereby causing the formation of a deposited film on said substrate, characterized in that the introduction of said film-forming raw material gas into said reaction chamber is conducted by ejecting the film-forming raw material gas toward a member opposed to the substrate from each of right and left sides of the gas feed pipe through the gas ejecting holes of the gas feed pipe at a gas-ejecting angle (a) of 45.degree..ltoreq.(a)<90.degree. to a line which is passing through between said cylindrical substrate and each of said plurality of gas feed pipes.

Abstract: In a plasma processing method and apparatus, microwaves are radiated from a slot antenna set at the bottom of a resonator, a plasma is generated using the microwave and a sample is processed by the plasma. A plasma having a ring-form is generated by the microwaves radiated from the slot antennas, which are disposed at an angle which is neither in parallel to nor perpendicular to a surface current flowing on a slot antenna plate. Thereby, the sample is uniformly processed.

Abstract: The present invention employs a plurality of small inductive antennas to generate a processing plasma. In one embodiment, small coil antennas are secured within the chamber so that both of the pole regions of the antennas couple power to the plasma. The antennas may be oriented so that poles regions are anywhere from perpendicular, to parallel to a chamber wall. The number, location, and orientation of the small antennas within the chamber may be selected to optimize plasma characteristics. In addition, the antennas may be secured to top, side, or bottom walls to improve plasma characteristics; and power deposition within the processing chamber may be adjusted by changing the orientation of the coils, and the magnitude and phase relationship of RF power through the individual antennas. Process gas may be selectively delivered to areas of high power deposition such as adjacent pole regions or through the center of a coil or loop antenna to control plasma characteristics.

Abstract: A bird feeder with electronic squirrel deterrence that includes a bottom, a top, a swivelling hanger, a reservoir for storing bird feed and at least one feeding opening disposed in the reservoir. Feeding roosts having a perch are received in the feeding openings and inserts, having selectively sized beak openings and selectively sized feed baffles are received by the feeding roosts in order to accommodate birds of various species. In one embodiment, the bird feeder includes correction circuit for administering an electrostatic shock to a squirrel. The roost, the bottom, and the top include conductive surfaces which form an open circuit. The circuit is closed when an animal such as a squirrel makes contact with the conductive surfaces and one of the feeding roosts and delivers a mild electrical shock to the animal.

Abstract: A fluid surge assembly for treating aquarium water and other fluids includes a treatment unit for receiving fluid, treating the fluid and depositing the fluid along a flow path to a body of fluid and a weir assembly disposed in the flow path between the treatment unit and the body of fluid. The weir assembly includes a lower weir blocking a portion of the flow path and an upper weir. The lower edge of the upper weir is offset from the crest of the lower weir to define a first fountain path. The crest of the upper weir defines a portion of a second fountain path. The second fountain path intersects the first fountain path to increase the velocity and distance traveled of the fluid. The invention also includes aquarium systems employing the fluid surge assembly. In some embodiments, the aquarium systems provide an opaque decorative member to block the treatment unit from view. In some embodiments, the decorative member is live rock.

Abstract: A ventilated cage and rack system which maximizes cage density within the rack is provided. The rack includes at least one air exhaust plenum, and at least one canopy disposed within the rack. The canopy is capable of supporting a first cage within the rack above the canopy, and also positioning a second cage below the canopy so as to maintain a gap between the top of the second cage and the canopy to permit air to be drawn into the air exhaust plenum from the interior of the second cage through the top of the second cage and to also permit ambient air to be drawn across the top of the second cage into the air exhaust plenum.

Abstract: A device for providing water to young birds and fowl. The waterer is attached to a cage for the birds and includes a bottle which can be detached for cleaning or replacement and reattached when full without any spillage. The device also includes a removable piece for the prevention of drowning of certain types of game birds.

Abstract: This invention is a sprint exercise training system and method suitable for a variety of animals, including horses, dogs and humans, to apply a restraining force during training to condition an animal to run faster. An exercise path (19) is defined by a single elevated monorail (20). The monorail (20) slidably carries a restraining assembly for providing a force opposing, and generally aligned opposite, an animal's direction of movement along an exercise path. A harness (12, 16) transfers the restraining force via a single tether (5) from the restraining assembly to the moving animal. An animal using the present invention may be conditioned to run faster when not subjected to a restraining force.

Abstract: A pet ball which is formed from two (2) hollow semi-spherical half members and which is readily mobile along a hard surface, for example the ground. A weight, for example, a fishing sinker, is suspended within the pet ball. The weight is suspended by an elastic member, for example, an elastic rubber band, which is attached to the inside wall of the pet ball. The weight can be attached to the elastic member in such a manner that it can move along the elastic member or it can be fixed at a stationary position along the elastic member to create different desired effects. When a force is applied to the pet ball, it will roll. With the weight being suspended from the elastic member, the center of gravity of the pet ball changes as the pet ball rolls, thus resulting in erratic movement or a path which follows no definite or consistent direction or pattern.

Abstract: A treat dispensing toy including a middle portion and pair of spaced disk portions of differing diameters, which are fixed to the middle portion. The toy is structured to enable treats or snacks to be dispensed from an interior chamber when an animal causes the toy to roll and rotate one or more revolutions. The disk portions may be removably fixed to the middle portion to facilitate filling and cleaning activities of the interior chamber, which is formed by the disk portions and a wall structure of the middle portion. The wall structure of the middle portion includes a treat dispensing opening to dispense treats in a controlled manner. The toy is intended to dispense treats, while engaging and entertaining an animal, and at the same time is arranged to maintain position within an inherently restricted play or holding area.

Abstract: The invention concerns a device for prohibiting the crossing of a zone boundary by an animal (2,4). This device comprises interactive means (12, 14) for locating the animal (2, 4) with respect to a control station (8), means for sanctioning (16) the use of which is dependent on means (66, 50, 52, 54) for processing and analyzing data supplied by said locating means (12, 140. The sanctioning means (16) are means for fogging a fluid, comprising an electrovalve; the actuating of the electrovalve varies in frequency, in duration and in delivery according to the distance separating the animal from the control station and the duration of the presence of the animal in the zone to be protected.

Abstract: A bail assembly including bail means moveable between operative engaged positions and a disengaged position; all actuating means for quickly moving the bail means between the operative engaged positions and the disengaged position, and holding means for holding the bail means at any selected operative engaged position. Preferably the holding means is a selectively releasable self locking hydraulic cylinder assembly which includes adjustable holding means, a locking chamber associated with the adjustable holding means which may be filled to lock the adjustable holding means, control means for controlling flow of fluid to and from the locking chamber, and actuating means for selectively actuating the control means.

Abstract: An apparatus and a method are provided for controlling the position of an animal in a space (1) having a floor in order to facilitate the performance of an animal-related action. The floor comprises at least one primary floor portion (10), at which it is desirable that the animal stands during the performance, and at least one secondary floor portion (11), at which it is desirable that the animal does not stand during the performance. The apparatus comprises an activatable device (14) provided to enable a wobbling movement of the secondary floor portion (11) upon activation.

Abstract: A dog excrement container having a hollow stem, with a receptacle which is held thereon and has a ring surface, having an excrement bag whose hem is turned down over the ring surface, having a covering ring which is pivotable about an axis oriented perpendicularly to the ring surface, and having a pulling element for the covering ring, the pulling element being guided inside the hollow stem. The technical problem is the odor-tight closure of the dog excrement container and safe handling of the excrement bag. The receptacle (4) has a bowl (5) closed at the bottom, the covering ring is constructed as a covering plate (14), and, as the pulling element, a rod (19) on the one hand is guided in a longitudinal slot (6) of the hollow stem (1) and on the other hand engages in a receptacle (17) of the covering plate (14).

Abstract: This invention relates to a natural gas fired water boiler having a spirally wrapped finned heat exchanger surrounding a burner. The center of the heat exchanger being plugged by a metal core having a constantly reducing diameter truncated cone top.

Abstract: In order to reduce the soot content of a diesel engine's exhaust gas, a fluid containing a peroxide compound, preferably an aqueous hydrogen peroxide solution, is fed into the combustion chamber after the start of the injection and combustion of the fuel, preferably following the combustion phase. The diesel fuel is preferably injected in the range 10.degree..+-.5.degree. before top dead center and the fluid containing the peroxide compound is fed in the range 5.degree. to 30.degree. after top dead center. Use may be made for the alternate supply of diesel fuel and hydrogen peroxide of a shared injection nozzle (FIG. 1) which supplies one or other of the media depending on the pressure of the diesel fuel and hydrogen peroxide solution supplied.

Abstract: A dual circuit cooling system for a vehicle having an engine and a turbocharger aftercooler includes a modular radiator system having partitions in the tanks of the radiator. The partitions create separate radiator sections, and the partitions contain orifices that provide a crossover function between the sections. During cooler engine operating temperatures the engine thermostat closes which causes engine coolant to be circulated mainly within the engine, and which also causes pressure downstream of the thermostat to drop. The reduced pressure allows coolant from the aftercooler circuit to pass through a first crossover and circulate through the main radiator, then through a second crossover and back to the aftercooler circuit. During higher engine temperatures the thermostat opens, equalizing pressure between the circuits, thus creating normal flow through the circuits.

Abstract: An engine cooling system includes a two-pass radiator, a jacket water pump pumping coolant from the radiator to the engine, and an aftercooler for cooling engine charge air from a turbocharger. An aftercooler pump pumps coolant from the radiator to the aftercooler. An orifice can be disposed in the aftercooler discharge line to limit flow therethrough, and an orifice bypass line with thermostatic control valve can be provided to selectively bypass the orifice. A shunt tank is connected to the suction of the jacket water pump to establish a static pressure head thereon, to ensure that the jacket water pump has sufficient suction pressure despite relatively high coolant head loss through the two-pass radiator.

Abstract: An internal combustion engine includes precision cooling passages preformed as tubes which are cast in place during fabrication of the engine's cylinder block and cylinder head.

Abstract: A method of operating a free piston engine of the present invention provides a piston including a piston head reciprocally disposed within a combustion cylinder, a plunger head reciprocally disposed within a hydraulic cylinder, and a plunger rod interconnecting the piston head with the plunger head. The plunger head and the hydraulic cylinder define a variable volume pressure chamber on a side of the plunger head generally opposite the plunger rod. A supply of hydraulic fluid is pulsed from a high pressure hydraulic accumulator into the pressure chamber during a beginning portion of a compression stroke to cause the piston head to move toward a top dead center position. The high pressure hydraulic accumulator is then decoupled from the pressure chamber.