Abstract: An internal combustion engine heat energy recovery system (1) comprises a first heat exchanger (20) arranged in heat communication with at least one heat energy source of an internal combustion engine (10) and with a working fluid of the system (1) for the transfer of heat energy from the heat energy source to the working fluid of the system (1). A turbine (30) is arranged in fluid communication with the working fluid heated in the first heat exchanger (20) for the expansion of the working fluid to produce shaft power. A second heat exchanger (40) is arranged in heat communication with the expanded working fluid to remove waste heat therefrom and transfer it to an external source such as the atmosphere. A first compressor (50) is arranged in fluid communication with the working fluid exiting the heat exchanger for increasing the pressure of the cooled working fluid prior to its entry into the first heat exchanger (20). The working fluid of the system is a substantially supercritical fluid.

Abstract: A surface-increasing feature system for a gas turbine engine comprising deployable surface-increasing features such as chevrons each defined by panels connected to a deployment mechanism providing a translational actuation to deploy said deployable surface-increasing feature from a stowed configuration concealed fore of a trailing edge of a case of the gas turbine engine, to a deployed configuration extending beyond the trailing edge. Joints provide one or more degree of freedom for the first panel and the second panel relative to the deployment mechanism. A guide operatively contacts the deployable surface-increasing feature to rotatably displace the first panel and the second panel away from one another in the at least one degree of freedom in response to movement induced by the translational actuation from the stowed configuration to the deployed configuration.

Abstract: The invention relates to a blade for use in a turbine of an aircraft engine. The blade is made of (a) a Mo-based alloy strengthened by intermetallic silicides or (b) a Ni-based single crystal superalloy. An aircraft engine and in particular, a turbofan aircraft engine including a corresponding turbine blade is also disclosed.

Abstract: Systems and methods are provided for an air-driven augmentor fan equipped aircraft propulsor. The augmentor fan may increase the effective bypass ratio of the aircraft propulsor and reduce fuel consumption and carbon emissions of the aircraft. The augmentor fan may be driven by air energized by a ducted fan powered by the core engine of the aircraft propulsor. The energized air may be received by an inlet, flowed through a flow path, and exhausted out the outlet to drive the augmentor fan. The exhausted energized air may impart a torque on the augmentor fan or blades of the augmentor fan. One or more of the inlet, flow path, or outlet may be variable in size to control the volume of air flowed through the flow path.

Abstract: A combustor for a liquid propellent motor has an elongated hollow tubular casing having an inner wall delimiting a combustion chamber for the liquid propellent and an outlet nozzle for the combustion products, and an outer wall, both being coaxial to an axis of the casing; the inner and outer walls being spaced apart from each other in radial direction and delimiting at least one guiding conduit of a cooling fluid therebetween; a plurality of bar-shaped elements extending into the guiding conduit, which form a grid for perturbing the cooling fluid, stiffening the casing and increasing the heat exchange surface; the grid being part of a body made in one piece and of a single material along with the inner and outer walls.

Abstract: A solid rocket motor comprises a pressure vessel, a solid propellant structure within the pressure vessel, and a flight termination system overlying the pressure vessel. The flight termination system comprises a shaped charge configured and positioned to effectuate ignition of an inner portion of the solid propellant structure and a reduction in an ability of the pressure vessel to withstand a change in internal pressure. Another solid rocket motor, a multi-stage rocket motor assembly, and a method of destroying a launch vehicle in flight are also described.

Abstract: A thrust nozzle, in particular thrust nozzle for a rocket engine, with a convergent wall section, a throat section and a divergent wall section. The divergent wall section has a first region adjacent to the throat section, the wall contour of which region corresponds to a truncated ideal nozzle, and the divergent wall section has a second region facing away from the throat section, which region has a wall contour deviating from the first region.

Abstract: A carburetor with rotary valve includes an idle adjustment needle with an eccentric hole, accordingly a special adjustment tool used for idle adjustment needle has an eccentric boss; a carburetor with rotary valve includes an idle adjustment needle with an eccentric boss, accordingly a special adjustment tool used for idle adjustment needle has an eccentric hole. The idle adjustment needle must be cooperated with the special adjustment tool to carry out the adjustment, thus non-professional user can not casually adjust the fuel oil needle without the special tool, so that the engine can be maintained in the best setting condition to ensure the engine exhaust to meet the environmental protection requirement.

Abstract: An anti-adjusting rotary valve type carburetor includes a high speed adjustment oil needle having an eccentric hole and an idle adjustment oil needle having an eccentric hole. Also disclosed is a specialized adjustment tool having an eccentric convex platform for adjusting the high speed adjustment oil needle and the idle adjustment oil needle. Also disclosed is a high speed adjustment oil needle having an eccentric convex platform and an idle speed adjustment oil needle having an eccentric convex platform. Also disclosed is a specialized adjustment tool having an eccentric hole for adjusting the high speed adjustment oil needle and the idle speed adjustment oil needle.

Abstract: This invention relates to an anti-adjusting butterfly valve type carburetor, comprising a kind of high speed adjustment oil needle having eccentric hole and a kind of idle adjustment oil needle having eccentric hole, and it also correspondingly discloses a kind of specialized adjustment tool having eccentric convex platform for adjusting the high speed adjustment oil needle and the idle adjustment oil needle. The invention also discloses a kind of high speed adjustment oil needle having eccentric convex platform and a kind of idle adjustment oil needle having eccentric convex platform an it also correspondingly discloses a kind of specialized adjustment tool having eccentric hole for adjusting the high speed adjustment oil needle and the idle adjustment oil needle.

Abstract: Novel methods and devices to operate internal combustion engines on ethane fuel and blends of ethane fuel are provided where the pressure is controlled to maintain a liquid or vapor phase of the fuel and the fuel is admitted into the engine in a controlled and consistent manner for highly efficient engine performance.

Abstract: An internal combustion engine that uses stratification of gasses for compressing air is disclosed. The engine uses a combustion chamber that delivers products of combustion into an elongated compression chamber to drive the products of combustion against resident air within the elongated compression chamber, and push the resident air into a compressed air chamber. After driving the resident air into the compressed air chamber, the products of combustion are used with work-producing devices. Air is then driven into the compression chamber by an air pump or low-pressure compressor to once again fill the compression chamber with fresh air. The air in the compressed air chamber is then delivered to the combustion chamber and used for combustion. Fuel is delivered to the combustion chamber by a fuel injector, and ignited by the heat of the compressed air and/or a glow plug, spark plug, or similar ignition device.

Abstract: A canister closed valve for an automotive fuel system is positioned at a vent line of a canister, which is exposed to atmospheric air, so as to perform a sealing function for the fuel system. The canister closed valve includes a valve body for protecting a coil assembly and internal components, the coil assembly for converting electric energy into magnetic energy; a plunger and rod assembly, which is magnetized and is moved up and down so as to block a pipe channel when power is applied; a spring for restoring the plunger and rod assembly so as to open the pipe channel when the application of the power is shut off; and an inner housing, which is disposed in the valve body, accommodates the core and the plunger and rod assembly, and includes an internal space isolated from atmospheric air when the plunger and rod assembly is raised.

Abstract: A vehicle fuel system includes a vapor recovery canister containing a primary carbon bed and a secondary carbon bed. Each carbon bed is configured to capture hydrocarbon material associated with fuel vapor discharged from a vehicle fuel tank.

Abstract: A solenoid valve device according to an aspect of an embodiment includes a solenoid valve, a determination unit, a setting unit, and a correction setting unit. The solenoid valve is provided on a fluid channel with a fluid passing there through and adjusts a flow rate of the fluid. The determination unit determines a target degree of valve opening of the solenoid valve. The setting unit sets a driving signal for driving the solenoid valve in such a manner that a degree of valve opening of the solenoid valve is the target degree of valve opening. The correction setting unit sets a differential pressure correction signal for driving the solenoid valve in accordance with a differential pressure on the fluid channel between a front and a back of the solenoid valve.

Abstract: An oxygen excitation system for increasing efficiency and minimizing pollutants of combustion is disclosed which comprises a power source, a radio frequency oscillator being in communication to the power source and configured to generate radio frequency, a radio frequency amplifier being in communication to the radio frequency oscillator and configured to amplify the radio frequency generated by said radio frequency oscillator, and an oxygen exciter being in communication to the radio frequency amplifier configured to convert a triplet oxygen into singlet oxygen to maximize fuel efficiency of internal or external combustion engines and minimizing pollutants from exhaust gases.

Abstract: An apparatus and methods are provided for an air cleaner to be mounted onto an air inlet of an internal combustion engine. The air cleaner comprises an air filter that includes a filter medium disposed between a curved base and a cover. The curved base provides an interface between the air filter and the air inlet, and comprises a shape that provides clearance between the curved base and an electric choke installed onto a carburetor comprising the air inlet. The cover secures the air filter and the curved base to the air inlet such that an airstream is drawn through the filter medium and is conducted into the air inlet. A raised portion of the cover is configured to cooperate with the curved base to ensure a desired volume of the airstream is available to the air inlet at substantially all engine speeds.

Abstract: In an intake device for an internal combustion engine, a difference in the air-fuel ratio between the cylinders is reduced without increasing the lengths of the branch passages. An intake device (23) for an internal combustion engine (1) having at least three cylinders (3) includes: an intake chamber (30) configured to be connected with an air inlet (16); and multiple branch passages (31) connected at upstream ends (41) thereof to the intake chamber and connected at downstream ends thereof to intake ports (6) communicating with the cylinders, respectively, wherein the upstream ends of the branch passages are arranged in a direction of rotation about a predetermined center line X in a same order as an order of ignition of the cylinders.

Abstract: An apparatus and a method for charging an LPG fuel vehicle are provided to charge a LPG tank with LPG fuel by decreasing part of pressure in the LPG tank when pressure in the LPG tank, which stores the LPG fuel, is greater than charging pressure. That is, pressure in the LPG tank is decreased to be equal to or lower than charging pressure of a charger and the LPG tank with LPG fuel is charged more smoothly from the charger, by capturing part of the LPG fuel in the LPG tank and allowing the LPG fuel to be combusted in the engine when pressure in the LPG tank of the vehicle is greater than LPG charging pressure of the charger.

Abstract: A fuel tank lid includes a lid part closing an opening of a fuel tank, and an internal terminal electrically connecting a pump provided inside the fuel tank with a drive circuit driving the pump. The lid part includes an inserted part inserted into the opening, a storage part located outside the fuel tank and storing the drive circuit in a hollow space of the storage part, and a connection part located outside the fuel tank and connecting the inserted part and the storage part. The fuel tank lid further includes a discharge part discharging a fuel vapor that tries to travel along an interface between the internal terminal and the lid part and enter the hollow space, to an external atmosphere, and a protection part covering the portion exposed from the lid part by the presence of the discharge part to protect the portion from a liquid.

Abstract: A one-way valve includes a housing with a center axis. The housing includes a peripheral side wall around the center axis, and an inward flange protruding from the peripheral side wall toward the center axis. A valve member is inserted into the housing and includes an outer peripheral surface around the center axis, and an outward flange protruding from the outer peripheral surface toward the peripheral side wall. A coil spring includes a first axial end having a first diameter and being in contact with the inward flange and the peripheral side wall, a second axial end having a second diameter smaller than a first diameter, the second axial end being in contact with the outward flange and the outer peripheral surface, and a body portion provided between the first axial end and the second axial end and having diameters decreasing from the first diameter to the second diameter.

Abstract: In a fuel supply device for separating raw fuel into high-octane fuel and low-octane fuel and supplying the fuel, to arrange the structural components compactly and to facilitate sealing against fuel vapor, the fuel supply device (1) includes: a raw fuel tank (2) for storing raw fuel; a separator (6) provided inside the raw fuel tank to separate the raw fuel into high-octane fuel that contains a greater amount of components with high octane numbers than the raw fuel and low-octane fuel that contains a greater amount of components with low octane numbers than the raw fuel; and a high-octane fuel tank (5) provided inside the raw fuel tank to store the high-octane fuel separated from the raw fuel by the separator.

Abstract: Methods and systems are provided for direct fuel injection, wherein a fuel injector comprises an injector needle coupled to a frustum shaped nozzle. During a fuel injection event, the injector needle may be moved outward to create an annulus nozzle. In this way, the fuel injector may inject fuel with a cone shaped spray pattern, reducing the spray penetration of the injected fuel.

Abstract: Provided is an end seal structure of a fuel rail for a gasoline direct injection engine, the end seal structure being characterized in that: a collar is joined by brazing to an outer circumference of an end of a pipe of the rail body including a pipe; the end cap having a cap-nut shape and including a sealing projection on an surface thereof facing the opening at the end of the pipe of the rail body, is screwed and fixed to the collar; and the sealing projection of the end cap brings into pressure contact with the end of the opening of the rail body by an axial force created by tightening of the end cap having the cap-nut shape to seal the end of the opening of the rail body.

Abstract: Provided is an end seal structure of a fuel rail for a gasoline direct injection engine, the end seal structure being characterized in that: a pressure receiving surface is formed on an inner wall surface of the end cap having the cap-nut shape, the pressure receiving surface defining a seat surface; a pressing surface is formed at an end of the rail body, the pressing surface defining a seat surface facing the pressure receiving surface; the end cap having the cap-nut shape and including the pressure receiving surface is screwed and fixed to the rail body; and the pressure receiving surface of the end cap is brought into pressure contact with the pressing surface of the rail body by an axial force created by tightening of the end cap having the cap-nut shape so as to seal the end of the rail body.

Abstract: Methods and systems are provided for direct fuel injection. In one example, a fuel injector system includes a needle, a plurality of tangential fins coupled to a nozzle end of the needle, an actuator coupled to the needle, and a controller storing non-transitory instructions that when executed cause the controller to, responsive to a command to inject fuel, activate the actuator to push the needle in a downward direction by an amount based on one or more operating parameters. In this way, the fuel injector may inject fuel with a cone shaped spray pattern, reducing the spray penetration of the injected fuel.

Abstract: A fuel injector (1) is provided which comprises a valve member (11), a valve member guide (12) and a spring chamber (40). Discharge of fuel out of a fuel injector outlet (21) is controlled by movement of the valve member (11) within a bore (23) of the valve member guide (12). The spring chamber (40) contains a biasing member (50), for example a compression spring, which biases the valve member (11) into contact with a valve seat (20) when in a closed configuration. A fuel supply passage (80) is provided, which by-passes the spring chamber (40), to direct a flow of the fuel to an outlet chamber (22) of the fuel injector (1) and a cleaning fluid supply passage (90) is provided to supply a pressurised cleaning fluid to a second end (25) of the bore (23) to restrict leakage of the fuel from the outlet chamber (22) towards the second end (25) of the bore (23) along a clearance (29) extending between the valve member (11) and the valve member guide (12).

Abstract: An ignition apparatus performs energy input control in which energy is continuously inputted to an ignition coil to enable a spark discharge in a predetermined energy input period after interrupting a primary current by an ignition switch and generating a discharge of a spark plug by a secondary current. A combustion state determination circuit determines a combustion state by comparing a combustion pressure P detected by a combustion state detector. When the combustion pressure P is smaller than a second threshold Pth2, and there is room for improving the combustion state with respect to the present energy input condition, the energy input period IGW is increased or a target secondary current I2* is increased. By compensating the condition of the energy input control in accordance with the combustion state, a target combustion state can be achieved with just enough energy consumption.

Abstract: The ignition system (10) of an engine (particularly for a UAV) has a primary (10a), and a secondary (10b) ignition system to provide redundancy for ‘get you home’ capability should the primary ignition system fail. The secondary ignition provides a lower energy or shorter duration spark than the higher energy or longer duration sparking of the primary ignition system, and is retarded relative to primary sparking. Timing of the secondary sparking can be advanced in the event of primary sparking failure. Fuelling strategy can be shifted from a leaner stratified charge to a richer homogenous charge when relying just on the secondary ignition system for ignition. The secondary ignition system can be of a lower spark energy and/or duration than the primary ignition system, avoiding the cost, complexity and weight of replicating the primary ignition system, and to improve packaging within the engine housing, particularly within the limited payload and space limits of a UAV.

Abstract: Some embodiments of a turbine system described herein provide a turbine that rotates in response to fluid flow, and include a rampart device that remains relatively stationary compared to the turbine and is shaped to affect fluid flow for effective power generation. The rotation of the turbine can drive a generator to output electrical energy.

Abstract: A hydrostatically based energy conversion unit, which comprises a vertically oriented cylinder; a piston sealingly engaged with and vertically displaceable within the cylinder; a horizontal shaft rotatably mounted to a surface located above the cylinder and mechanically connected to the piston; a motor for driving the shaft in a first rotational direction; and a generator coupled to the shaft for producing electrical power when the shaft rotates in a second rotational direction opposite to the first rotational direction. The piston is vertically displaceable in a first vertical direction during a charging mode following operation of the motor, and is vertically displaceable in a second vertical direction opposite to the first vertical direction during a power generating mode after being hydrostatically driven to produce electrical power in conjunction with the generator.

Abstract: The machine comprises distribution ducts connected to respective ones of first, second, and third enclosures (40, 42, 44), and a cylinder-capacity selector (21) suitable for being caused to take up a large cylinder capacity configuration in which the second enclosure (42) is connected to one of the main ducts (2), while the first and third enclosures (40, 44) are connected to the other main duct (1), and a small cylinder capacity configuration in which the second and third enclosures (42, 44) are connected to said one of the main ducts (2), while the first enclosure is connected to the other main duct (1). The machine further comprises a safety valve (150) having at least a first port (56) connected to said one of the main ducts (2), and a second port (58) connected to the third enclosure (44).

Abstract: The present invention relates to airfoils having surface treatments to reduce trailing edge noise. The surface treatment is designed to reduce trailing edge noise by modifying the boundary layer turbulence as it approaches the trailing edge. The surface treatment accomplishes its function by breaking up spanwise-oriented turbulence approaching the trailing edge, thereby reducing the spanwise correlation lengthscales; deflecting the boundary layer turbulence away from the edge; and/or creating spanwise vortices or instability waves to reduce the turbulence-edge interaction.

Abstract: Several configurations of tip systems for a modular wind turbine blade and associated methods of manufacture are described.

Abstract: The present invention relates to a cyclonic or anti-cyclonic conversion generator comprising a hollow and rigid structure (1) having at the upper end thereof diffusing deflectors (2) to produce a venturi effect and means for converting the kinetic energy of the outside wind into electrical energy, said hollow and rigid structure comprising: means for generating a primary flow (3) and means for generating a secondary flow (4) or vortex core, using convectors (5), (6); and means that facilitate the vertical movement of the primary flow and the secondary flow, using slopes that increase the peripheral flow (12) or a central protrusion or convex surface (11). The generator can be used for generating cyclones and anti-cyclones and can be used with any fluid, such as wind or water. The generator allows the speed of the fluid to be increased, concentrating said fluid on the periphery, which results in improved performance and effectiveness.

Abstract: A wind turbine is controlled in response to an estimate of vertical and/or horizontal wind shear. A tilt moment is estimated from flapwise and edgewise blade bending moments, azimuth and blade pitch positions and used to estimate vertical wind shear. A yaw moment is also estimated from flapwise and edgewise blade bending moments, azimuth and pitch position and used to estimate horizontal wind shear. A tip speed ratio is determined from an estimate of wind velocity over the rotor plane and is used to set a blade pitch angle which is passed to a blade pitch controller. The pitching may be collective or individual. In the latter case, the tip speed ratio is determined from a plurality of rotor plane positions to derive a cyclic pitch reference for each blade.

Abstract: A wind turbine arrangement including a first rotatable blade arrangement and a second rotatable blade arrangement. The first blade arrangement forms part of a first wind turbine, and the second blade arrangement forms part of a second wind turbine. The second wind turbine can produce a rotative force to the first wind turbine. At wind speeds below that required to operate the first turbine, the second turbine may be operable and provide power to rotate the first turbine.

Abstract: The present subject matter is directed to a method for managing and/or categorizing trip faults of an electrical component, such as power converter, of a wind turbine. The method includes receiving, via a local controller of the wind turbine, an indication of at least one trip fault in the electrical component of the wind turbine. The method also includes determining, via the local controller, a unique identifier for the trip fault. More specifically, the unique identifier contains information regarding a type of the trip fault and at least one of an origin or a cause, of the trip fault. Further, the method includes sending, via the local controller, the unique identifier to a supervisory controller of the wind turbine. Thus, the method also includes implementing, via the supervisory controller, a control action based on the unique identifier.

Abstract: The application relates to wind turbine tower section production methods and in particular to methods of manufacturing a plurality of elongate tower segments for forming a wind turbine tower section, the tower section constructed from a plurality of elongate tower segments connected along their respective longitudinal edges. The tower section is formed from a plurality of cans connected end to end and is divided into elongate segments by cutting along two or more cut lines extending along the length of the tower. A method of providing a horizontal flange at the end of a wind turbine tower is also discussed, as is a vertical flange preassembly including a pair of vertical flanges for connecting the longitudinal edges of adjacent first and second tower segments.

Abstract: The Inventive Subject Matter is a System for harvesting wind energy and natural wave energy. The harvesting can be performed on a body of water. The body of water can be an ocean or lake. The harvesting can be performed autonomously and create portable energy for ships or other purposes.

Abstract: A wind turbine having a slip ring transmitter between a rotor hub and a nacelle for transmitting electrical signals with a data protocol. The slip ring transmitter is equipped with a signal amplifier device on the transmission side and with a signal evaluation device on the reception side. The signal amplifier device amplifies voltage values of signals for transmission via a slip ring transmitter. The signal evaluation device sets signals received via the slip ring transmitter to a value corresponding to the data protocol.

Abstract: Wind turbine rotor blade having an electric heating device for heating a heatable surface region which extends over a longitudinal section of the wind turbine rotor blade, wherein the electric heating device has a blade-tip-side end, a blade-root-side end and two profile-trailing-edge-side edges, and two outer electric conductors which are connected to the electric heating device along the profile-trailing-edge-side edges and via which the electric heating device can be supplied with a heating current, wherein at least one central electric conductor which is connected to the electric heating device at a distance from the two profile-profiling-edge-side edges in such a way that the electric heating device is divided by the at least one central electric conductor into at least two partial regions which each extend over the longitudinal section and can be supplied with an electric heating current separately from one another via two of the conductors.

Abstract: The invention relates to a method for performing up-tower maintenance on a gearbox bearing of a wind turbine. In particular, a method for performing up-tower maintenance on a gearbox of a wind turbine is disclosed. The gearbox has at least one bearing with an outer race and an inner race that rotates with respect to the outer race. The method includes forming a through-hole in a front cover of the gearbox, the front cover being stationary with respect to an axis of rotation of the bearing. The method also includes forming a recess in the outer race of the bearing. Further, the method includes inserting a connecting member through the through-hole and the recess so as to prevent movement of the outer race of the bearing with respect to a torque arm of the gearbox.

Abstract: The invention relates to an equipment compartment frame of a power control module of a wind turbine. The frame includes a polygonal beam structure (17) in one plane and a plurality of standing beams (18) attached to the polygonal beam structure (17) at at least some of the corners of the polygonal beam structure (17). According to the invention, each standing beam (18) is attached to the polygonal beam structure (17) by means of a releasable joint (26, 27, 28). The invention also relates to methods for transporting and assembling such frames.

Abstract: A driving device of a micropump and a microvalve is provided. The driving device comprises a pump driver controlled by a pump controller, a valve driver controlled by a valve controller, a power supply part, a switch part. The pump driver having a first shape memory alloy wire, a micropump of the first shape memory alloy wire, a wiring part arranged in parallel to the first shape memory alloy wire, and a first selector switch that switches between a state where only the first shape memory alloy wire is energizable and a state where the wiring part is energizable. The valve driver having a plurality of second shape memory alloy wires, a plurality of microvalves of second shape memory alloy wires, and a second selector switch that brings into a state where one of the plurality of second shape memory alloy wires is energizable.

Abstract: A multiple oscillating water pumping device includes: a wing member disposed in fluid to generate a lifting force using the flow energy of the fluid; a rotation device to reciprocally rotate the wing member to periodically change the direction of the lifting force acting on the wing member; an arm is rotatably coupled to the wing member, the arm being reciprocally rotated about a pivot shaft by the lifting force acting on the wing member; and a cylinder where fluid enters and exits according to the internal pressure that is periodically increased and decreased by the reciprocating motion of a piston that is connected with the arm through a connecting rod. The multiple oscillating water pumping device is configured to minimize the supply of a power source required for operation and to minimize the loss of head when pumped water flows toward a reservoir along a conduit.

Abstract: To provide a piston compressor capable of preventing excessive oil from accumulating in a crank chamber in any operation state while securing the supply of oil to a swash plate. In a piston compressor in which an oil separation passage (43) is formed in a shaft (7) and a crank chamber (2) communicates with a suction chamber (31) through the oil separation passage (43), a supply passage (40) opens at a region of a cylinder block (1) opposed to a swash plate (18) to thereby allow a working fluid introduced from a discharge chamber (32) into the crank chamber (2) to be supplied to the swash plate (18) and a bypass passage (50) allowing the crank chamber (2) to constantly communicate with the suction chamber (31) is provided to thereby prevent the accumulation of excessive oil in the crank chamber (2) regardless of the operation condition.

Abstract: A connecting rod (24) has a modified end adapted to ensure that a lubricant film of sufficient thickness exists in an end bearing thereof when the connecting rod is placed in both tension and compression. The connecting rod includes an elongated body portion or shaft (40), a big end (42) defining a first coupling bore (44) at a first longitudinal end of the body portion (40), and a small end (46) defining a second coupling bore (48) at a second longitudinal end of the body portion (40). The small end (46) and the big end (42) each have a proximal side (50,52) nearest the shaft (40) and a distal side (54,56) furthest from the shaft (40). An opening (100) is formed in the shaft (40) adjacent the proximal side (52) for adjusting a stiffness of the proximal side (52).

Abstract: A compressor may include a housing, a piston, and a cylinder head assembly. The housing defines a cylinder and a first valve seat defining a recess. The piston is movable within the cylinder to define a compression chamber. The cylinder head assembly is mounted on the housing and includes a valve plate, a suction valve, a discharge valve and a head cover. The valve plate may be mounted to the mounting surface and may include a suction plenum, a suction passage providing fluid communication between the suction plenum and the cylinder, and a discharge passage. The suction valve can seat on the first valve seat to allow fluid flow through the suction passage. The head cover may include a discharge chamber and an integrally formed guide post extending into the discharge chamber. The guide post may include a pocket that receives a discharge valve stem for reciprocation therein.

Abstract: By a securing structure 4, a diaphragm 3 dividing a space 20 into a first chest 21 and a second chest 22 is secured to a case 2 forming the space 20 therein. The case 2 has a first frame 5 having a first concave portion 50 for forming the first chest 21, and a second frame 6 having a second concave portion 60 for forming the second chest 22. The edge portion 32 of the diaphragm 3 is compressed and secured between the first frame 5 and the second frame 6 which are fitted with each other. The first frame 5 has a first securing portion 52 for retaining the second frame 6 upon the fitting so as not to come off.