Apparatus for facilitating removal/replacement of springs of engine valves
OwnerBrice Harmandinventor
Life of this patent
Estimating the term…
Abstract
The detached cylinder head is placed on a table or other flat surface which has a recessed area within which is retained a deformable elastic bladder. Air, water or some other fluid is introduced into the bladder causing it to expand so that it conforms to the chambers within the cylinder head. The pressure of the expanded bladder within the chamber forces the valve upward against the valve seat. Once the valve is pressed upward against the valve seat, the valve can be disassembled by depressing the spring and removing the fastener, so that the spring can be removed, or the spring can be put in place and the valve reconnected.
Claims16
An apparatus to facilitate removal/replacement of valve springs from their corresponding valves in a cylinder head having a plurality of valves and a plurality of chambers with one chamber corresponding to at least one of said plurality of valves, said apparatus comprising:
- a flat surface for supporting said cylinder head;
- a recessed area bisecting at least a portion of said flat surface;
- a deformable bladder disposed at least partially within said recessed area having a releasably sealable inlet means for retaining a fluid introduced into said deformable bladder, said deformable bladder having a length which spans said plurality of chambers;
- a supply line connected to said deformable bladder through which said fluid is introduced;
- and
- a pumping means for providing pressure whereby said fluid is introduced through said supply line into said deformable bladder;
- wherein said cylinder head is disposed on said flat surface with its chambers substantially aligned with said recessed area and said fluid is introduced into said deformable bladder so that it expands to fill said chambers, forcing said plurality of valves outward to facilitate access for removal/replacement of said valve springs.
An apparatus to facilitate removal/replacement of valve springs of a cylinder head having a plurality of valves and a plurality of chambers, with one chamber corresponding to at least one of said plurality of valves, said apparatus comprising:
- a flat surface for supporting said cylinder head;
- a sealing means for retaining a fluid within said plurality of chambers, aid sealing means having a length spanning said plurality of chambers;
- a supply line for simultaneously introducing said fluid into said plurality of chambers;
- and
- a pumping means for providing pressure whereby said fluid is introduced through said supply line into said plurality of chambers;
- wherein said cylinder head is disposed on said flat surface with its chambers adjacent said sealing mean and said fluid is introduced into said plurality of chambers so that it provides a force within said plurality of chambers and against said plurality of valves to drive said plurality of valves outward to facilitate access for removal/replacement of said valve springs.
An apparatus for providing improved access for removal or replacement of at least one spring on a valve in a cylinder head having a plurality of chambers and a plurality of corresponding valves when said cylinder head is disassembled from an engine block wherein said at least one valve spring is disposed on a stem of a respective valve, held in place by a key bolt, the apparatus which comprises:
- a flat surface having a channel disposed therein which generally bisects said flat surface;
- a deformable bladder disposed within said channel, said deformable bladder having a length which spans said plurality of chambers;
- at least one clamping mean for clamping said cylinder head onto said flat surface so that said plurality of chambers is positioned over said deformable bladder;
- a pumping means for filling said deformable bladder with a fluid so that at least a portion of said deformable bladder expands to fill said plurality of chambers wherein each valve of said corresponding plurality of valves is forced outward so that said valve is disposed in a position to facilitate removal or replacement of said at least one valve spring by allowing compression of said at least one valve spring to provide access to a respective key bolt.
Dependencies are inferred from the claim text.