Abstract: A turbomachine with a shaft supporting a turbine wheel is supported for rotation in a housing. The shaft extends through a bore in the housing and a bearing assembly is disposed in the bore. The turbomachine has a first lubricating fluid slinger comprising a screw thread that is engageable with a threaded section of the shaft such that the first lubricating fluid slinger is screwable along the threaded section of the shaft so as to apply a compressive preload to the bearing assembly.

Abstract: A turbomachine with a shaft supporting a turbine wheel is supported for rotation in a housing. The shaft extends through a bore in the housing and a bearing assembly is disposed in the bore. The turbomachine has a first lubricating fluid slinger comprising a screw thread that is engageable with a threaded section of the shaft such that the first lubricating fluid slinger is screwable along the threaded section of the shaft so as to apply a compressive preload to the bearing assembly.

Abstract: A turbomachine with a shaft supporting a turbine wheel is supported for rotation in a housing. The shaft extends through a bore in the housing and a bearing assembly is disposed in the bore. The turbomachine has a first lubricating fluid slinger comprising a screw thread that is engageable with a threaded section of the shaft such that the first lubricating fluid slinger is screwable along the threaded section of the shaft so as to apply a compressive preload to the bearing assembly.

Abstract: A turbomachine with a shaft supporting a turbine wheel is supported for rotation in a housing. The shaft extends through a bore in the housing and a bearing assembly is disposed in the bore. The turbomachine has a first lubricating fluid slinger comprising a screw thread that is engageable with a threaded section of the shaft such that the first lubricating fluid slinger is screwable along the threaded section of the shaft so as to apply a compressive preload to the bearing assembly.

Abstract: Methods and apparatuses for providing inventory visibility and on site material control to support services provided at a well site are disclosed. A system for communicating inventory information is provided. The system includes a mobile storage unit and a load cell coupled to the mobile storage unit. The load cell generates an electric signal representing the amount of materials in the mobile storage unit. A command center is communicatively coupled to the load cell. The command center receives a signal from the load cell representing the amount of materials in the mobile storage unit.

Abstract: An apparatus for detecting a predetermined pattern of bits in a data bitstream includes a series of detecting elements (2-6), each detecting element in the series corresponding to a predetermined bit in the predetermined pattern. Each detecting element receives a data bit from the data bitstream (8), the corresponding predetermined bit in the predetermined pattern and an error signal from a previous detecting element in the series. The output of each detecting element is an error signal indicative of the number of mismatches between the data bit and the corresponding predetermined bit in the predetermined pattern, both in previous detecting elements in the series in previous clock cycles and in the current detecting element in the current clock cycle. The error signal of the final detecting element (6) of the series is coupled to a logic control element (18) for detecting that a maximum allowed level of mismatches has been detected.

Abstract: An apparatus for detecting a predetermined pattern of bits in a data bitstream includes a series of detecting elements (2-6), each detecting element in the series corresponding to a predetermined bit in the predetermined pattern. Each detecting element receives a data bit from the data bitstream (8), the corresponding predetermined bit in the predetermined pattern and an error signal from a previous detecting element in the series. The output of each detecting element is an error signal indicative of the number of mismatches between the data bit and the corresponding predetermined bit in the predetermined pattern, both in previous detecting elements in the series in previous clock cycles and in the current detecting element in the current clock cycle. The error signal of the final detecting element (6) of the series is coupled to a logic control element (18) for detecting that a maximum allowed level of mismatches has been detected.

Abstract: An MWE compressor comprising a housing defining an inlet and an outlet, and an impeller wheel rotatably mounted in the housing such that on rotation of the wheel gas within the inlet is moved to the outlet. The housing has an inner wall defining a surface located in close proximity to radially outer edges of vanes supported by the wheel. The inlet is defined by a first tubular portion an inner surface of which is an extension of the said surface of the inner wall of the housing, a second tubular portion located radially outside the first portion to define an annular passage between the first and second portions, a wall extending across the annular passage between the first and second portions, and a conical wall located upstream of the first portion and extending in the radially outwards and upstream directions from adjacent the upstream end of the first portion to the upstream end of the second portion.