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US 6,779,381 B2Granted
Threadless knock sensor
AssigneeDelphi Technologies, Inc.
InventorsViswanathan Subramanian, Efren Solis, Cesar C. Chavez
Life of this patent
Estimating the term…
Abstract
A threadless knock sensor (10, 50) includes a sleeve (12, 52) around which a transducer (24, 64) and a load washer (30, 70) are disposed. A frusto-conical disk spring (34, 78) is installed in compression around the sleeve (12, 52) above the transducer (24, 64). The sleeve (12, 52) includes threadless structure for holding the disk spring (34, 78) in compression.
Claims16
A threadless knock sensor, comprising:
- a sleeve;
- a transducer disposed around the sleeve;
- a load washer disposed around the sleeve adjacent to the transducer;
- a frusto-conical disk spring disposed around the sleeve adjacent to the load washer;
- and
- a threadless means for compressing the disk spring against the load washer, wherein the threadless means comprises:
- a flared end formed by the sleeve above the load washer, the disk spring being installed in compression between the flared end of the sleeve and the load washers the disk spring being in contact with the flared end.
4 more elements
A threadless knock sensor, comprising:
- a sleeve;
- a transducer disposed around the sleeve;
- a load washer disposed around the sleeve adjacent to the transducer;
- a frusto-conical disk spring disposed around the sleeve adjacent to the load washer;
- and
- a threadless means for compressing the disk spring against the load washer wherein the threadless means comprises:
- a spring retention collar press fitted around the sleeve above the load washer, the disk spring being installed in compression between the spring retention collar and the load washer, the disk spring being in contact with the spring retention collar.
4 more elements
A method for making an engine knock sensor, comprising the acts of:
- providing a sleeve having a flared end, the flared end defining a first spring retention face;
- disposing a transducer on the sleeve;
- disposing a load washer on the sleeve above the transducer, the load washer forming a second spring retention face;
- disposing a disk spring an the sleeve above the load washer, the disk spring contacting the flared end and the second spring retention face;
- and
- compressing the disk spring until it engages the first spring retention face.
3 more elements
A method for making an engine knock sensor, comprising the acts of:
- providing a sleeve, the sleeve forming a collar stop face;
- disposing a transducer on the sleeve;
- disposing a load washer on the sleeve above the transducer;
- disposing a disk spring on the sleeve above the load washer;
- and
- pressing a spring retention collar on the sleeve above the disk spring until the spring retention collar engages the collar stop face and the disk spring is compressed, the disk spring being in contact with the spring retention collar.
3 more elements
Dependencies are inferred from the claim text.