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Measuring device for measuring the mass of a medium flowing in a line

  • US 6,332,356 B1
  • Filed: 12/07/1999
  • Issued: 12/25/2001
  • Est. Priority Date: 04/08/1998
  • Status: Expired due to Term
First Claim
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1. A measuring device (1) for measuring the mass of a medium flowing in a flow line (2) as an aspirated air mass of an internal combustion engine, comprising a measuring element (21) bathed by a portion of the flowing medium and disposed in a flow conduit (10) of the measuring device (1) provided in the flow line (2), wherein the flow conduit (10) extends in a primary flow direction (19) between an inlet opening (12) that communicates with the flow line (2) and at least one outlet opening (13;

  • 30) that discharges into the flow line (2) downstream of the inlet opening (12), in which the flow conduit (10) branches at a first dividing point (15), disposed between the inlet opening (12) and the measuring element (21), into a measuring conduit (20), in which the measuring element (21) is disposed, and a first bypass conduit (22), which bypasses the measuring element (21) in the primary flow direction (19), the flow conduit (10) having a first curved portion (24) at least between the inlet opening (12) and the first dividing point (15), the measuring conduit (20) adjoining an inner region (26) with a relatively lesser radius of curvature of the first curved portion (24) in the primary flow direction (19), and the first bypass conduit (22) adjoins a peripheral region (25) with a relatively large radius of curvature of the first curved portion (24) in the primary flow direction (19).

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