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US 9,810,565 B2Granted
Oil level gauge device
AssigneeVolvo Truck Corporation
InventorsMinoru Inokura, Kiyonori Ide, Yuki Yamazaki
Life of this patent
Estimating the term…
Abstract
An oil level gauge device in which an oil level gauge is inserted in a guide pipe communicating with an oil pan, is provided. In the oil level gauge, a cap having a plug configured to fit on an inner peripheral surface at one end portion of the guide pipe, and a flange integrally formed with the plug and abutted with the one end of the guide pipe, is provided. A groove extending from a deeply inserted side of the plug to an abutment surface of the end abutting the flange is formed in the inner peripheral surface. When the plug is fitted on the inner peripheral surface, a ventilation passage for communicating the inside and outside of the oil pan through the guide pipe is formed between the plug and the guide pipe by the groove.
Claims14
An oil level gauge device comprising:
- a cylindrical tube-like guide pipe having one end provided with an opening and the other end being in communication with an oil pan;
- and
- an oil level gauge configured to be inserted in the guide pipe,
- wherein a cap comprising:
- a plug configured to fit on an inner peripheral surface of the guide pipe at one end portion thereof, which is an end portion on the one end side;
- and a flange that is integrally formed with the plug on the side opposite to the oil pan side of the plug fitted thereon and that is configured to axially abut an open end surface at the one end, is provided at a base end of the oil level gauge, and
- wherein when the plug is fitted on the inner peripheral surface at the one end portion of the guide pipe and the flange is not brought into abutment with the open end surface, a ventilation passage for communicating the inside and outside of the oil pan through the opening is formed between the plug and the guide pipe,
- wherein the ventilation passage is formed by a groove formed in the inner peripheral surface at the one end portion of the guide pipe and extending from a deeply inserted side of the plug to an abutment surface of the one end, the abutment surface abutting the flange,
- wherein concave and convex portions configured to fit when the flange and the one end abut each other, are formed in abutment surfaces of the flange and the one end.
6 more elements
An oil level gauge device comprising:
- a cylindrical tube-like guide pipe having one end provided with an opening and the other end being in communication with an oil pan;
- and
- an oil level gauge configured to be inserted in the guide pipe,
- wherein a cap comprising:
- a plug configured to fit on an inner peripheral surface of the guide pipe at one end portion thereof, which is an end portion on the one end side;
- and a flange that is integrally formed with the plug on the side opposite to the oil pan side of the plug fitted thereon and that is configured to axially abut an open end surface at the one end, is provided at a base end of the oil level gauge, and
- wherein when the plug is fitted on the inner peripheral surface at the one end portion of the guide pipe and the flange is not brought into abutment with the open end surface, a ventilation passage for communicating the inside and outside of the oil pan through the opening is formed between the plug and the guide pipe,
- wherein the ventilation passage is formed by a groove formed in an outer peripheral surface of the plug and extending in an axial direction of the plug,
- wherein convex and concave portions fitted when the flange and the open end surface abut each other are formed in abutment surfaces of the flange and the open end surface.
6 more elements
An oil level gauge device comprising:
- a cylindrical tube-like guide pipe having one end provided with an opening and the other end being in communication with an oil pan;
- and
- an oil level gauge configured to be inserted in the guide pipe,
- wherein a cap comprising:
- a plug configured to fit on an inner peripheral surface of the guide pipe at one end portion thereof, which is an end portion on the one end side;
- and a flange that is integrally formed with the plug on the side opposite to the oil pan side of the plug fitted thereon and that is configured to axially abut an open end surface at the one end, is provided at a base end of the oil level gauge, and
- wherein when the plug is fitted on the inner peripheral surface at the one end portion of the guide pipe and the flange is not brought into abutment with the open end surface, a ventilation passage for communicating the inside and outside of the oil pan through the opening is formed between the plug and the guide pipe,
- wherein the guide pipe and the plug are formed in such a manner that the plug is threadedly engaged with and fitted on the inner peripheral surface at the one end portion of the guide pipe,
- wherein the ventilation passage formed by a groove extending in a threading direction over the overall length of a threading portion in which the plug and the guide pipe are threadedly engaged with each other is formed in at least one of the plug and the guide pipe.
6 more elements
Dependencies are inferred from the claim text.