Abstract: A combined oil filter and restrictor assembly is disclosed having an oil flow restrictor interposed between first and second filters so that, irrespective of the direction of oil flow through the restrictor, debris cannot enter a small diameter bore 32 in a body of the restrictor thereby reducing the likelihood of restrictor blockage. The combined oil filter and restrictor assembly includes a metal threaded member that enables the combined oil filter and restrictor assembly to be easily and quickly assembled to or removed from a component such as a cylinder head of a variable displacement engine. The combined oil filter and restrictor assembly can be used to provide a restricted flow of oil from oil supply passages to signal oil passages used for controlling the operation of deactivatable hydraulic lash adjusters so as to purge the signal oil passages when the deactivatable hydraulic lash adjusters are not deactivated.

Abstract: A combined oil filter and restrictor assembly is disclosed having an oil flow restrictor interposed between first and second filters so that, irrespective of the direction of oil flow through the restrictor, debris cannot enter a small diameter bore 32 in a body of the restrictor thereby reducing the likelihood of restrictor blockage. The combined oil filter and restrictor assembly includes a metal threaded member that enables the combined oil filter and restrictor assembly to be easily and quickly assembled to or removed from a component such as a cylinder head of a variable displacement engine. The combined oil filter and restrictor assembly can be used to provide a restricted flow of oil from oil supply passages to signal oil passages used for controlling the operation of deactivatable hydraulic lash adjusters so as to purge the signal oil passages when the deactivatable hydraulic lash adjusters are not deactivated.

Abstract: A wheel sensor (4) comprises sensing means for sensing one or more conditions within a pneumatic tire (2) of a wheel (1) and an attachment means configured to secure said sensing means to the wheel rim (3); wherein said sensor (4) further comprises an optical sensor (6) pointing towards the inside surface (12) of said tire (2) for receiving radiation radiated from said inside surface (12); whereby temperature values may be derived representative of said tire surface temperature.

Abstract: A wheel sensor (4) comprises sensing means for sensing one or more conditions within a pneumatic tyre (2) of a wheel (1) and an attachment means configured to secure said sensing means to the wheel rim (3); wherein said sensor (4) further comprises an optical sensor (6) pointing towards the inside surface (12) of said tyre (2) for receiving radiation radiated from said inside surface (12); whereby temperature values may be derived representative of said tyre surface temperature.

Abstract: A content addressable memory consists of a plurality of memory units each of which may be an integrated circuit. Each unit receives an input group of digits forming all or part of an input key code, and compares it simultaneously with a plurality of equally sized groups of digits stored in the memory of the unit. The memory of a unit has 32K bytes of storage elements functionally arranged in 512 rows and column. The 64 bytes forming a row are each compared with an input group of 8 binary digits. A status bit is produced for each of the 64 bytes of a row and indicates whether or not the input group matches the particular byte. The match need not be perfect and certain digits may be masked so that comparison of them does not detract from the match assessment. The status bits are combined logically to produce higher and higher order status bits selectively indicating the presence of a match in larger and larger groups of storage elements up to the entire memory of the unit.

Abstract: A content addressable memory consists of a plurality of memory units each of which may be an integrated circuit. Each unit receives an input group of digits forming all or part of an input key code, and compares it simultaneously with a plurality of equally sized groups of digits stored in the memory of the unit. The memory of a unit has 32K bytes of storage elements functionally arranged in 512 rows and column. The 64 bytes forming a row are each compared with an input group of 8 binary digits. A status bit is produced for each of the 64 bytes of a row and indicates whether or not the input group matches the particular byte. The match need not be perfect and certain digits may be masked so that comparison of them does not detract from the match assessment. The status bits are combined logically to produce higher and higher order status bits selectively indicating the presence of a match in larger and larger groups of storage elements up to the entire memory of the unit.