The invention relates to an automobile inflatable pump comprising: a driving assembly; a rocker arm, a rear end of which is mounted on a power output end of the drive assembly; a cylinder block connected to the drive assembly and defining a piston cavity inside; a piston provided on a front end of the rocker arm, the piston being movably received in the piston cavity to divide the piston cavity into a front cavity having an inflation inlet and a rear cavity communicating with the external environment, the drive assembly deriving the rocker arm to rotate, thus the piston moves back and forth in a straight line; and a sealing ring provided in the first annular groove, a front end of the sealing ring protruding at least in part the outer peripheral wall of the piston. The invention has beneficial effects of simplified structure, improved production efficiency, and reduced costs.

A linear compressor includes a discharge valve detachably attached to a front end surface of a cylinder to open and close a compression space of the cylinder; and a valve spring elastically supporting a rear surface of the discharge valve to press the discharge valve toward the front end surface of the cylinder. The discharge valve includes reinforced fiber, and the reinforced fiber is arranged parallel to the front end surface of the cylinder. Accordingly, while a rigidity of the discharge valve is improved, a weight of the valve is reduced to enhance responsiveness of the valve, suppress abrasion of the cylinder, and reduce striking sound.

A valve assembly includes a seat plate having a top surface and a bottom surface, a plurality of first valve modules arranged in a first level relative to the seat plate such that a first seating face of each of the plurality of first valve modules is substantially co-planar with a first plane that is substantially parallel to at least one of the top surface and the bottom surface of the seat plate, and at least one second valve module arranged in a second level relative to the seat plate such that a second seating face of the at least one second valve module is co-planar with a second plane that is substantially parallel to the first plane, wherein the second plane is offset from the first plane by a first distance.

A linear compressor is provided that may include a shell, a cylinder accommodated into the shell and defining a compression space for a refrigerant, a frame to which the cylinder may be fixed, a piston that reciprocates within the cylinder in an axial direction and compresses a refrigerant supplied to the compression space, a discharge valve that discharges the refrigerant compressed in the compression space, a discharge cover coupled to the frame and defining a discharge space in which the refrigerant discharged from the compression space by opening of the discharge valve may be collected, a valve spring that supports the discharge valve, and a support integrally formed with the valve spring by insert injection molding and coupled to the discharge cover. The valve spring may define one or more holes filled with a molding liquid used to form the support in the insert injection molding of the support.

A valve comprising a base plate defining an inlet and outlet passageway. A cover plate is disposed on the base plate and defines a first and second channel. A pressure plate is disposed on the base plate and includes a first anchoring portion, a first sealing portion, and a first biasing portion connecting the first anchoring portion and the first sealing portion. Furthermore, a suction plate is disposed on the base plate and includes a second anchoring portion, a second sealing portion, and a second biasing portion connecting the second anchoring portion to the second sealing portion. The valve is movable between a first configuration, where the first sealing portion is distal to first channel and the second sealing portion is proximal to inlet passageway, and a second configuration, in which the first sealing portion is proximal to first channel, and second sealing portion is distal to inlet passageway.

A piston pump includes a perforated disk as a throttle, in a central hole of which an outlet valve is arranged and its inner edge is fixed externally on a cylinder sleeve base of the piston pump and an outer edge of which lies with prestress on an annular support. Brake fluid displaced out of the piston pump lifts the perforated disk-shaped throttle off from the annular support, with which a dynamic throttle is formed. A throttle channel which negotiates the annular support in the perforated disk-shaped throttle also enables a throughflow in the case of a throttle lying on the annular support.

In a general aspect, a pressure regulating device helps achieve a correct inflation pressure of an inflatable object. In some aspects, an inflation device includes an inlet, and outlet, and a vent port. The inflation device also includes one or more interior surfaces that define a gas-delivery pathway fluidly-coupling the inlet and the outlet. A flow restriction is disposed along the gas-delivery pathway between the inlet and the outlet. Moreover, an opening is disposed along the gas-delivery pathway adjacent the flow restriction and downstream thereof. The inflation device also includes a gas-exhaust pathway fluidly-coupling the opening and the vent port. A first chamber of the gas-exhaust pathway is in fluid communication with the opening, and a second chamber of the gas-exhaust pathway is in fluid communication with the vent port. A pressure-relief valve is configured to control gas flow between the first chamber and the second chamber.

In a general aspect, a pressure regulating device helps achieve a correct inflation pressure of an inflatable object. In some aspects, an inflation device includes an inlet, and outlet, and a vent port. The inflation device also includes one or more interior surfaces that define a gas-delivery pathway fluidly-coupling the inlet and the outlet. A flow restriction is disposed along the gas-delivery pathway between the inlet and the outlet. Moreover, an opening is disposed along the gas-delivery pathway adjacent the flow restriction and downstream thereof. The inflation device also includes a gas-exhaust pathway fluidly-coupling the opening and the vent port. A first chamber of the gas-exhaust pathway is in fluid communication with the opening, and a second chamber of the gas-exhaust pathway is in fluid communication with the vent port. A pressure-relief valve is configured to control gas flow between the first chamber and the second chamber.

To reduce or prevent failures due to contamination, such as control and/or lubrication failure, the compressor according to the present invention includes an oil separator 230 having a separation portion configured to separate lubricating oil OIL from a working fluid by using a centrifugal force, and a storage portion located below the separation portion and configured to store lubricating oil OIL separated by the separation portion. A hat-shaped trap member 260 is disposed between the separation portion and the storage portion. The trap member 260 allows precipitation and trapping of the contamination CON mixed in the lubricating oil OIL by temporarily storing the lubricating oil OIL separated by the separation portion and discharging a supernatant of the lubricating oil OIL into the storage portion.

A relief device in air pump includes a main body defining an interior space and a discharge passage fluidly communicating with the interior space. The discharge passage is selectively closed and opened by a valve device. The valve device is movable in the discharge passage. The valve device includes a first sealing portion and a second sealing portion selectively engaging with the discharge passage. The valve device is movable between a first position in which one of the first and the second sealing portions engages with the discharge passage and a second position in which the other of the first and the second sealing portion engages with the discharge passage. The discharge passage has a length measuring from the first end to the second end thereof, which is smaller than a length which measures a separation distance between the first and the second sealing portions.