Abstract: An improved air compressor is provided. The air compressor includes a cylinder block having a head deck that defines a piston bore for reciprocal movement of a piston therein. The head deck further includes first and second ramped surfaces that slope downward toward the peripheral edge of the piston bore. A valve plate is in direct contact with the upper surface of the head deck, the valve plate having a leaf valve. During an intake stroke of the piston, the leaf valve deflects downward into direct engagement with the first and second ramped surfaces. Because the air compressor lacks a lower gasket between the valve plate and the head deck, the cost and assembly time associated with the lower gasket are eliminated.

Abstract: An improved air compressor is provided. The air compressor includes a cylinder block having a head deck that defines a piston bore for reciprocal movement of a piston therein. The head deck further includes first and second ramped surfaces that slope downward toward the peripheral edge of the piston bore. A valve plate is in direct contact with the upper surface of the head deck, the valve plate having a leaf valve. During an intake stroke of the piston, the leaf valve deflects downward into direct engagement with the first and second ramped surfaces. Because the air compressor lacks a lower gasket between the valve plate and the head deck, the cost and assembly time associated with the lower gasket are eliminated.

Abstract: A discharge cut-off valve for an air compressor is provided. The discharge cut-off valve includes a hinged leaf valve within the recessed portion of a cylinder head manifold. The hinged leaf valve is rotatably anchored at a first end to a joint pin and is guided at a second end by a guide pin. In the on-load phase, the hinged leaf valve is seated over an unloader vent opening while a discharge vent opening is uncovered. In the off-load phase, the hinged leaf valve is seated over the discharge vent opening while the unloader vent opening is uncovered. As a result, compressed air is prevented from escaping the discharge port of the air compressor during the off-load phase, obviating the need for a down-stream turbo cut-off valve in an air dryer, for example.

Abstract: A discharge cut-off valve for an air compressor is provided. The discharge cut-off valve includes a hinged leaf valve within the recessed portion of a cylinder head manifold. The hinged leaf valve is rotatably anchored at a first end to a joint pin and is guided at a second end by a guide pin. In the on-load phase, the hinged leaf valve is seated over an unloader vent opening while a discharge vent opening is uncovered. In the off-load phase, the hinged leaf valve is seated over the discharge vent opening while the unloader vent opening is uncovered. As a result, compressed air is prevented from escaping the discharge port of the air compressor during the off-load phase, obviating the need for a down-stream turbo cut-off valve in an air dryer, for example.

Abstract: A compressor for a vehicle air supply system includes a manifold, a cover, a gasket, an inlet, and an outlet. The manifold and cover are fixedly stacked together, and define a fluid channel system between them. The gasket extends laterally from between the manifold and cover. The fluid channel system includes an inlet air passage extending from the inlet to a cylinder inlet, a discharge air passage extending from a cylinder outlet to the outlet for discharging compressed air to the outlet, and one or more coolant channels that can be fed with a coolant to cool at least the discharge air passage. The inlet air passage, the discharge air passage, and the coolant channel(s) extend laterally, defined by wall faces of the discharge air passage. The wall faces comprise turbulator fins protruding into the discharge air passage. The turbulator fins create turbulence in the discharged compressed air flow.

Abstract: A pressure monitoring device for use in an air system of a vehicle and for controlling a compressor comprises an input air connector for connection to an air tank and for receiving an input pressure from the air tank. A first signal air connector can output a pneumatic ON-load signal for adjusting the compressor to an operation mode. A second signal air connector can output a pneumatic OFF-load signal for adjusting the compressor to a non-operation mode.

Abstract: A compressor for a vehicle air supply system includes a manifold, a cover, a gasket, an inlet, and an outlet. The manifold and cover are fixedly stacked together, and define a fluid channel system between them. The gasket extends laterally from between the manifold and cover. The fluid channel system includes an inlet air passage extending from the inlet to a cylinder inlet, a discharge air passage extending from a cylinder outlet to the outlet for discharging compressed air to the outlet, and one or more coolant channels that can be fed with a coolant to cool least the discharge air passage. The inlet air passage, the discharge air passage, and the coolant channel(s) extend laterally, defined by wall faces of the discharge air passage. The wall faces comprise turbulator fins protruding into the discharge air passage. The turbulator fins create turbulence in the discharged compressed air flow.

Abstract: A cylinder head for a compressor includes a closure device that can be adjusted between an unactuated position (off-load) in which the compressor delivers air and an actuated position (off-load) in which the compressor is running in an idle mode, a pneumatic control device having a control cylinder and a control piston that can be moved in the control cylinder, a spring device that prestresses the closure device into the unactuated position (on-load), and a driver configured to couple the control piston to the closure device. The closure device closes a compressed air passage in the unactuated position (on-load) and clears the compressed air passage in the actuated position (off-load), and the driver is permanently connected to the closure device and can be driven by the control piston.

Abstract: A pressure monitoring device for use in an air system of a vehicle and for controlling a compressor comprises an input air connector for connection to an air tank and for receiving an input pressurer from the air tank. A first signal air connector can output a pneumatic ON-load signal for adjusting the compressor to an operation mode. A second signal air connector can output a pneumatic OFF-load signal for adjusting the compressor to a non-operation mode.

Abstract: A cylinder head for a compressor includes a closure device that can be adjusted between an unactuated position (off-load) in which the compressor delivers air and an actuated position (off-load) in which the compressor is running in an idle mode, a pneumatic control device having a control cylinder and a control piston that can be moved in the control cylinder, a spring device that prestresses the closure device into the unactuated position (on-load), and a driver configured to couple the control piston to the closure device. The closure device closes a compressed air passage in the unactuated position (on-load) and clears the compressed air passage in the actuated position (off-load), and the driver is permanently connected to the closure device and can be driven by the control piston.

Abstract: The present application is directed to systems and methods for associating a geographic location with an IP address. Generally, an IP address associated with each of a plurality of browser cookies is determined, where each of the plurality of browser cookies indicate a geographic location such as a home address or business address of a user. A geo tag is associated with each of the plurality of browser cookies and a subset of the plurality of browser cookies including browser cookies associated with a first IP address is identified. The subset of the plurality of browser cookies is clustered into a spatial cluster including browser cookies associated with geo tags located within a defined distance of a geo tag of at least one other browser cookie of the cluster. A geographic location associated with a geographic center of the cluster is then associated with the first IP address.

Abstract: The present application is directed to systems and methods for associating a geographic location with an IP address. Generally, an IP address associated with each of a plurality of browser cookies is determined, where each of the plurality of browser cookies indicate a geographic location such as a home address or business address of a user. A geo tag is associated with each of the plurality of browser cookies and a subset of the plurality of browser cookies including browser cookies associated with a first IP address is identified. The subset of the plurality of browser cookies is clustered into a spatial cluster including browser cookies associated with geo tags located within a defined distance of a geo tag of at least one other browser cookie of the cluster. A geographic location associated with a geographic center of the cluster is then associated with the first IP address.

Abstract: The present application is directed to systems and methods for associating a geographic location with an IP address. Generally, an IP address from which each of a plurality of users accesses a network is recorded. A geo tag is associated with each of the plurality of users and a subset of the plurality of users is identified, the subset including users associated with a first IP address. The subset of the plurality of users is clustered into a spatial cluster including users associated with geo tags located with a defined distance of a geo tag of at least one other user of the cluster. A geographic location associated with a geographic center of the cluster is then associated with the first IP address.

Abstract: Systems and methods for associating a geographic location with an Internet protocol (IP address) are disclosed. Generally, an IP address to location module determines whether a geographic location is associated with a common IP address in a majority of IP address to location data sets. The IP address to location module then stores an association between a geographic location and the IP address in a master IP address to location data set based on whether a geographic location is associated with a common IP address in a majority of IP address to location data sets.

Abstract: The present application is directed to systems and methods for associating a geographic location with an IP address. Generally, a plurality of localized search queries of search queries received at an Internet search engine are determined, where each of the plurality of localized search queries is associated with a location. A geo tag is associated with each of the plurality of localized search queries and a subset of the plurality of localized search queries that are associated with a first IP address is identified. The subset of the plurality of localized search queries is clustered into a spatial cluster including localized search queries associated with geo tags located within a defined distance of a geo tag associated with at least one other localized search query of the cluster. A geographic location associated with a geographic center of the cluster is then associated with the first IP address.

Abstract: Systems and methods for associating a geographic location with an Internet protocol (IP address) are disclosed. Generally, an IP address to location module determines whether a geographic location is associated with a common IP address in a majority of IP address to location data sets. The IP address to location module then stores an association between a geographic location and the IP address in a master IP address to location data set based on whether a geographic location is associated with a common IP address in a majority of IP address to location data sets.

Abstract: Systems and methods for associating a geographic location with an IP address are disclosed. Generally, a plurality of localized search queries of search queries received at an Internet search engine are determined, where each of the plurality of localized search queries is associated with a location. A geo tag is associated with each of the plurality of localized search queries and a subset of the plurality of localized search queries that are associated with a first IP address is identified. The subset of the plurality of localized search queries is clustered into a spatial cluster including localized search queries associated with geo tags located within a defined distance of a geo tag associated with at least one other localized search query of the cluster. A geographic location associated with a geographic center of the cluster is then associated with the first IP address.

Abstract: Systems and methods for associating a geographic location with an IP address are disclosed. Generally, an IP address associated with each of a plurality of browser cookies is determined, where each of the plurality of browser cookies indicate a geographic location such as a home address or business address of a user. A geo tag is associated with each of the plurality of browser cookies and a subset of the plurality of browser cookies including browser cookies associated with a first IP address is identified. The subset of the plurality of browser cookies is clustered into a spatial cluster including browser cookies associated with geo tags located within a defined distance of a geo tag of at least one other browser cookie of the cluster. A geographic location associated with a geographic center of the cluster is then associated with the first IP address.